./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.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_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/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_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/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_dc4f4989-218b-4f83-8682-035f300e5482/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 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:51:55,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:51:55,343 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-28 23:51:55,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:51:55,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:51:55,370 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:51:55,371 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:51:55,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:51:55,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:51:55,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:51:55,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:51:55,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:51:55,375 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:51:55,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:51:55,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:51:55,376 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:51:55,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:51:55,377 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:51:55,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:51:55,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:51:55,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:51:55,379 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:51:55,379 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-28 23:51:55,380 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:51:55,380 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:51:55,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:51:55,381 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:51:55,381 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:51:55,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:51:55,382 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:51:55,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:51:55,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:51:55,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:51:55,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:51:55,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:51:55,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:51:55,384 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:51:55,385 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:51:55,385 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:51:55,385 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:51:55,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:51:55,385 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_dc4f4989-218b-4f83-8682-035f300e5482/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 [2023-11-28 23:51:55,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:51:55,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:51:55,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:51:55,622 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:51:55,622 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:51:55,624 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2023-11-28 23:51:58,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:51:58,661 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:51:58,661 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2023-11-28 23:51:58,679 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/data/9e1410cb6/44726738bd72483ea747b41a543800bb/FLAG783de2007 [2023-11-28 23:51:58,690 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/data/9e1410cb6/44726738bd72483ea747b41a543800bb [2023-11-28 23:51:58,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:51:58,694 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:51:58,695 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:51:58,695 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:51:58,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:51:58,701 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,702 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4b299e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58, skipping insertion in model container [2023-11-28 23:51:58,702 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,754 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:51:59,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:51:59,269 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:51:59,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:51:59,398 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:51:59,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59 WrapperNode [2023-11-28 23:51:59,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:51:59,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:51:59,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:51:59,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:51:59,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (1/1) ... [2023-11-28 23:51:59,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (1/1) ... [2023-11-28 23:51:59,462 INFO L138 Inliner]: procedures = 369, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 237 [2023-11-28 23:51:59,462 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:51:59,463 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:51:59,463 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:51:59,463 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:51:59,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (1/1) ... [2023-11-28 23:51:59,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (1/1) ... [2023-11-28 23:51:59,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (1/1) ... [2023-11-28 23:51:59,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (1/1) ... [2023-11-28 23:51:59,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (1/1) ... [2023-11-28 23:51:59,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (1/1) ... [2023-11-28 23:51:59,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (1/1) ... [2023-11-28 23:51:59,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (1/1) ... [2023-11-28 23:51:59,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:51:59,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:51:59,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:51:59,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:51:59,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (1/1) ... [2023-11-28 23:51:59,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:51:59,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:51:59,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:51:59,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:51:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:51:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-28 23:51:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:51:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-28 23:51:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-28 23:51:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-28 23:51:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-28 23:51:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 23:51:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:51:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-28 23:51:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-28 23:51:59,610 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-28 23:51:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:51:59,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:51:59,612 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 23:51:59,777 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:51:59,779 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:52:00,215 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:52:00,238 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:52:00,238 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-28 23:52:00,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:52:00 BoogieIcfgContainer [2023-11-28 23:52:00,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:52:00,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:52:00,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:52:00,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:52:00,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:51:58" (1/3) ... [2023-11-28 23:52:00,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ccf0db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:52:00, skipping insertion in model container [2023-11-28 23:52:00,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:59" (2/3) ... [2023-11-28 23:52:00,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ccf0db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:52:00, skipping insertion in model container [2023-11-28 23:52:00,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:52:00" (3/3) ... [2023-11-28 23:52:00,248 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_16-arrayloop_rc.i [2023-11-28 23:52:00,257 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-28 23:52:00,267 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:52:00,267 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-28 23:52:00,267 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 23:52:00,351 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-28 23:52:00,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 267 transitions, 538 flow [2023-11-28 23:52:00,497 INFO L124 PetriNetUnfolderBase]: 6/266 cut-off events. [2023-11-28 23:52:00,498 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 23:52:00,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 266 events. 6/266 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 428 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-11-28 23:52:00,508 INFO L82 GeneralOperation]: Start removeDead. Operand has 265 places, 267 transitions, 538 flow [2023-11-28 23:52:00,530 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 266 transitions, 535 flow [2023-11-28 23:52:00,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:52:00,544 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;@5eb71d44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:52:00,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-28 23:52:00,558 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 23:52:00,558 INFO L124 PetriNetUnfolderBase]: 3/67 cut-off events. [2023-11-28 23:52:00,558 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 23:52:00,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:00,559 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] [2023-11-28 23:52:00,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:00,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:00,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1470461029, now seen corresponding path program 1 times [2023-11-28 23:52:00,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:00,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882062932] [2023-11-28 23:52:00,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:00,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:01,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:01,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882062932] [2023-11-28 23:52:01,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882062932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:01,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:01,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:52:01,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737103572] [2023-11-28 23:52:01,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:01,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:52:01,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:01,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:52:01,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:52:01,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 267 [2023-11-28 23:52:01,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 266 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:01,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:01,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 267 [2023-11-28 23:52:01,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:52:02,958 INFO L124 PetriNetUnfolderBase]: 1265/4885 cut-off events. [2023-11-28 23:52:02,959 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 23:52:02,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7429 conditions, 4885 events. 1265/4885 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 36485 event pairs, 912 based on Foata normal form. 137/4612 useless extension candidates. Maximal degree in co-relation 7347. Up to 2359 conditions per place. [2023-11-28 23:52:02,987 INFO L140 encePairwiseOnDemand]: 227/267 looper letters, 84 selfloop transitions, 107 changer transitions 0/371 dead transitions. [2023-11-28 23:52:02,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 371 transitions, 1127 flow [2023-11-28 23:52:02,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:52:02,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:52:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1286 transitions. [2023-11-28 23:52:03,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8027465667915106 [2023-11-28 23:52:03,007 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1286 transitions. [2023-11-28 23:52:03,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1286 transitions. [2023-11-28 23:52:03,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:52:03,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1286 transitions. [2023-11-28 23:52:03,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 214.33333333333334) internal successors, (1286), 6 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:03,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:03,031 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:03,033 INFO L175 Difference]: Start difference. First operand has 264 places, 266 transitions, 535 flow. Second operand 6 states and 1286 transitions. [2023-11-28 23:52:03,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 371 transitions, 1127 flow [2023-11-28 23:52:03,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 371 transitions, 1126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 23:52:03,046 INFO L231 Difference]: Finished difference. Result has 272 places, 363 transitions, 1216 flow [2023-11-28 23:52:03,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1216, PETRI_PLACES=272, PETRI_TRANSITIONS=363} [2023-11-28 23:52:03,052 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 8 predicate places. [2023-11-28 23:52:03,052 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 363 transitions, 1216 flow [2023-11-28 23:52:03,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:03,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:03,053 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] [2023-11-28 23:52:03,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 23:52:03,054 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:03,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:03,055 INFO L85 PathProgramCache]: Analyzing trace with hash 572903943, now seen corresponding path program 1 times [2023-11-28 23:52:03,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:03,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893698830] [2023-11-28 23:52:03,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:03,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:03,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:03,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:03,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893698830] [2023-11-28 23:52:03,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893698830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:03,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:03,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:52:03,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590006043] [2023-11-28 23:52:03,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:03,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:52:03,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:03,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:52:03,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:52:03,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 267 [2023-11-28 23:52:03,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 363 transitions, 1216 flow. Second operand has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:03,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:03,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 267 [2023-11-28 23:52:03,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:52:04,887 INFO L124 PetriNetUnfolderBase]: 1531/5769 cut-off events. [2023-11-28 23:52:04,887 INFO L125 PetriNetUnfolderBase]: For 1214/1217 co-relation queries the response was YES. [2023-11-28 23:52:04,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10561 conditions, 5769 events. 1531/5769 cut-off events. For 1214/1217 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 44422 event pairs, 936 based on Foata normal form. 0/5326 useless extension candidates. Maximal degree in co-relation 10466. Up to 2637 conditions per place. [2023-11-28 23:52:04,916 INFO L140 encePairwiseOnDemand]: 230/267 looper letters, 180 selfloop transitions, 107 changer transitions 0/471 dead transitions. [2023-11-28 23:52:04,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 471 transitions, 2198 flow [2023-11-28 23:52:04,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:52:04,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:52:04,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1279 transitions. [2023-11-28 23:52:04,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7983770287141073 [2023-11-28 23:52:04,921 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1279 transitions. [2023-11-28 23:52:04,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1279 transitions. [2023-11-28 23:52:04,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:52:04,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1279 transitions. [2023-11-28 23:52:04,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.16666666666666) internal successors, (1279), 6 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:04,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:04,929 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:04,930 INFO L175 Difference]: Start difference. First operand has 272 places, 363 transitions, 1216 flow. Second operand 6 states and 1279 transitions. [2023-11-28 23:52:04,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 471 transitions, 2198 flow [2023-11-28 23:52:04,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 471 transitions, 2198 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 23:52:04,946 INFO L231 Difference]: Finished difference. Result has 281 places, 463 transitions, 2096 flow [2023-11-28 23:52:04,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1214, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2096, PETRI_PLACES=281, PETRI_TRANSITIONS=463} [2023-11-28 23:52:04,948 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 17 predicate places. [2023-11-28 23:52:04,948 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 463 transitions, 2096 flow [2023-11-28 23:52:04,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:04,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:04,949 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] [2023-11-28 23:52:04,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 23:52:04,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:04,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:04,950 INFO L85 PathProgramCache]: Analyzing trace with hash -826497430, now seen corresponding path program 1 times [2023-11-28 23:52:04,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:04,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195459585] [2023-11-28 23:52:04,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:04,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:04,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:04,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:04,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195459585] [2023-11-28 23:52:04,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195459585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:04,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:04,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:52:04,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594883070] [2023-11-28 23:52:04,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:04,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:52:04,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:04,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:52:04,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:52:05,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 267 [2023-11-28 23:52:05,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 463 transitions, 2096 flow. Second operand has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:05,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:05,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 267 [2023-11-28 23:52:05,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:52:05,991 INFO L124 PetriNetUnfolderBase]: 1081/4368 cut-off events. [2023-11-28 23:52:05,991 INFO L125 PetriNetUnfolderBase]: For 1100/1106 co-relation queries the response was YES. [2023-11-28 23:52:06,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8778 conditions, 4368 events. 1081/4368 cut-off events. For 1100/1106 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 28514 event pairs, 108 based on Foata normal form. 4/4126 useless extension candidates. Maximal degree in co-relation 8615. Up to 1137 conditions per place. [2023-11-28 23:52:06,033 INFO L140 encePairwiseOnDemand]: 261/267 looper letters, 16 selfloop transitions, 4 changer transitions 0/469 dead transitions. [2023-11-28 23:52:06,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 469 transitions, 2148 flow [2023-11-28 23:52:06,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:52:06,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:52:06,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 772 transitions. [2023-11-28 23:52:06,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9637952559300874 [2023-11-28 23:52:06,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 772 transitions. [2023-11-28 23:52:06,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 772 transitions. [2023-11-28 23:52:06,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:52:06,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 772 transitions. [2023-11-28 23:52:06,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:06,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:06,046 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:06,046 INFO L175 Difference]: Start difference. First operand has 281 places, 463 transitions, 2096 flow. Second operand 3 states and 772 transitions. [2023-11-28 23:52:06,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 469 transitions, 2148 flow [2023-11-28 23:52:06,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 469 transitions, 1956 flow, removed 96 selfloop flow, removed 0 redundant places. [2023-11-28 23:52:06,075 INFO L231 Difference]: Finished difference. Result has 284 places, 465 transitions, 1928 flow [2023-11-28 23:52:06,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1904, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1928, PETRI_PLACES=284, PETRI_TRANSITIONS=465} [2023-11-28 23:52:06,077 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 20 predicate places. [2023-11-28 23:52:06,077 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 465 transitions, 1928 flow [2023-11-28 23:52:06,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:06,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:06,078 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:06,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 23:52:06,079 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:06,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:06,080 INFO L85 PathProgramCache]: Analyzing trace with hash 340895407, now seen corresponding path program 1 times [2023-11-28 23:52:06,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:06,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566210143] [2023-11-28 23:52:06,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:06,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:06,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:06,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566210143] [2023-11-28 23:52:06,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566210143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:06,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:06,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:52:06,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257453352] [2023-11-28 23:52:06,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:06,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:52:06,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:06,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:52:06,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:52:07,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 267 [2023-11-28 23:52:07,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 465 transitions, 1928 flow. Second operand has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:07,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:07,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 267 [2023-11-28 23:52:07,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:52:09,117 INFO L124 PetriNetUnfolderBase]: 2970/10628 cut-off events. [2023-11-28 23:52:09,117 INFO L125 PetriNetUnfolderBase]: For 5996/6095 co-relation queries the response was YES. [2023-11-28 23:52:09,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23684 conditions, 10628 events. 2970/10628 cut-off events. For 5996/6095 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 84878 event pairs, 1872 based on Foata normal form. 0/10087 useless extension candidates. Maximal degree in co-relation 23486. Up to 5591 conditions per place. [2023-11-28 23:52:09,184 INFO L140 encePairwiseOnDemand]: 261/267 looper letters, 285 selfloop transitions, 5 changer transitions 0/464 dead transitions. [2023-11-28 23:52:09,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 464 transitions, 2506 flow [2023-11-28 23:52:09,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:52:09,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:52:09,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1129 transitions. [2023-11-28 23:52:09,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7047440699126092 [2023-11-28 23:52:09,189 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1129 transitions. [2023-11-28 23:52:09,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1129 transitions. [2023-11-28 23:52:09,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:52:09,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1129 transitions. [2023-11-28 23:52:09,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 188.16666666666666) internal successors, (1129), 6 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:09,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:09,199 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:09,199 INFO L175 Difference]: Start difference. First operand has 284 places, 465 transitions, 1928 flow. Second operand 6 states and 1129 transitions. [2023-11-28 23:52:09,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 464 transitions, 2506 flow [2023-11-28 23:52:09,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 464 transitions, 2502 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 23:52:09,224 INFO L231 Difference]: Finished difference. Result has 287 places, 464 transitions, 1932 flow [2023-11-28 23:52:09,225 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1922, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1932, PETRI_PLACES=287, PETRI_TRANSITIONS=464} [2023-11-28 23:52:09,225 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 23 predicate places. [2023-11-28 23:52:09,226 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 464 transitions, 1932 flow [2023-11-28 23:52:09,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:09,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:09,227 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] [2023-11-28 23:52:09,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 23:52:09,227 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:09,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:09,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1149405863, now seen corresponding path program 1 times [2023-11-28 23:52:09,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:09,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585409706] [2023-11-28 23:52:09,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:09,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:09,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:09,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:09,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585409706] [2023-11-28 23:52:09,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585409706] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:09,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819055413] [2023-11-28 23:52:09,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:09,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:09,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:09,377 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:09,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 23:52:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:09,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:52:09,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:09,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:09,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819055413] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:52:09,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:52:09,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-28 23:52:09,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621252885] [2023-11-28 23:52:09,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:52:09,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:52:09,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:09,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:52:09,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:52:09,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 267 [2023-11-28 23:52:09,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 464 transitions, 1932 flow. Second operand has 10 states, 10 states have (on average 248.0) internal successors, (2480), 10 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:09,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:09,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 267 [2023-11-28 23:52:09,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:52:10,866 INFO L124 PetriNetUnfolderBase]: 1085/4413 cut-off events. [2023-11-28 23:52:10,866 INFO L125 PetriNetUnfolderBase]: For 677/683 co-relation queries the response was YES. [2023-11-28 23:52:10,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8658 conditions, 4413 events. 1085/4413 cut-off events. For 677/683 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 28292 event pairs, 102 based on Foata normal form. 2/4169 useless extension candidates. Maximal degree in co-relation 8420. Up to 898 conditions per place. [2023-11-28 23:52:10,889 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 22 selfloop transitions, 13 changer transitions 0/479 dead transitions. [2023-11-28 23:52:10,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 479 transitions, 2034 flow [2023-11-28 23:52:10,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:52:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-28 23:52:10,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2251 transitions. [2023-11-28 23:52:10,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9367457344985435 [2023-11-28 23:52:10,896 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2251 transitions. [2023-11-28 23:52:10,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2251 transitions. [2023-11-28 23:52:10,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:52:10,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2251 transitions. [2023-11-28 23:52:10,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 250.11111111111111) internal successors, (2251), 9 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:10,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:10,911 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:10,911 INFO L175 Difference]: Start difference. First operand has 287 places, 464 transitions, 1932 flow. Second operand 9 states and 2251 transitions. [2023-11-28 23:52:10,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 479 transitions, 2034 flow [2023-11-28 23:52:10,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 479 transitions, 2024 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 23:52:10,933 INFO L231 Difference]: Finished difference. Result has 293 places, 471 transitions, 1990 flow [2023-11-28 23:52:10,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1922, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1990, PETRI_PLACES=293, PETRI_TRANSITIONS=471} [2023-11-28 23:52:10,934 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 29 predicate places. [2023-11-28 23:52:10,935 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 471 transitions, 1990 flow [2023-11-28 23:52:10,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 248.0) internal successors, (2480), 10 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:10,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:10,937 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:10,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:52:11,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:11,138 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:11,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:11,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1047357319, now seen corresponding path program 2 times [2023-11-28 23:52:11,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:11,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534006644] [2023-11-28 23:52:11,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:11,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:11,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:11,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534006644] [2023-11-28 23:52:11,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534006644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:11,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818957925] [2023-11-28 23:52:11,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:52:11,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:11,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:11,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:11,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 23:52:11,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:52:11,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:52:11,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 23:52:11,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:11,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-28 23:52:11,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-28 23:52:11,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:52:11,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-28 23:52:11,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:52:11,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-28 23:52:11,964 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-11-28 23:52:11,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:11,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818957925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:11,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:52:11,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2023-11-28 23:52:11,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658843326] [2023-11-28 23:52:11,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:11,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:52:11,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:11,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:52:11,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:52:12,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 267 [2023-11-28 23:52:12,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 471 transitions, 1990 flow. Second operand has 8 states, 8 states have (on average 185.0) internal successors, (1480), 8 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:12,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:12,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 267 [2023-11-28 23:52:12,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:52:15,682 INFO L124 PetriNetUnfolderBase]: 3714/12851 cut-off events. [2023-11-28 23:52:15,682 INFO L125 PetriNetUnfolderBase]: For 5332/5410 co-relation queries the response was YES. [2023-11-28 23:52:15,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28179 conditions, 12851 events. 3714/12851 cut-off events. For 5332/5410 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 104020 event pairs, 1333 based on Foata normal form. 0/12093 useless extension candidates. Maximal degree in co-relation 27903. Up to 4028 conditions per place. [2023-11-28 23:52:15,746 INFO L140 encePairwiseOnDemand]: 220/267 looper letters, 375 selfloop transitions, 174 changer transitions 0/772 dead transitions. [2023-11-28 23:52:15,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 772 transitions, 3962 flow [2023-11-28 23:52:15,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:52:15,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-28 23:52:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1992 transitions. [2023-11-28 23:52:15,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8289637952559301 [2023-11-28 23:52:15,752 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1992 transitions. [2023-11-28 23:52:15,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1992 transitions. [2023-11-28 23:52:15,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:52:15,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1992 transitions. [2023-11-28 23:52:15,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 221.33333333333334) internal successors, (1992), 9 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:15,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:15,761 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:15,761 INFO L175 Difference]: Start difference. First operand has 293 places, 471 transitions, 1990 flow. Second operand 9 states and 1992 transitions. [2023-11-28 23:52:15,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 772 transitions, 3962 flow [2023-11-28 23:52:15,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 772 transitions, 3952 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-11-28 23:52:15,785 INFO L231 Difference]: Finished difference. Result has 305 places, 632 transitions, 3456 flow [2023-11-28 23:52:15,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1980, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3456, PETRI_PLACES=305, PETRI_TRANSITIONS=632} [2023-11-28 23:52:15,787 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 41 predicate places. [2023-11-28 23:52:15,788 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 632 transitions, 3456 flow [2023-11-28 23:52:15,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 185.0) internal successors, (1480), 8 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:15,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:15,789 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:15,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 23:52:15,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:15,990 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:15,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:15,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2109208062, now seen corresponding path program 1 times [2023-11-28 23:52:15,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:15,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091104186] [2023-11-28 23:52:15,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:15,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:16,269 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:16,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:16,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091104186] [2023-11-28 23:52:16,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091104186] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:16,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834924895] [2023-11-28 23:52:16,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:16,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:16,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:16,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:16,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 23:52:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:16,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:52:16,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:16,710 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:16,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:16,923 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:16,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834924895] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:52:16,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:52:16,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-28 23:52:16,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201928731] [2023-11-28 23:52:16,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:52:16,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 23:52:16,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:16,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 23:52:16,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-28 23:52:17,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 267 [2023-11-28 23:52:17,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 632 transitions, 3456 flow. Second operand has 18 states, 18 states have (on average 248.0) internal successors, (4464), 18 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:17,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:17,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 267 [2023-11-28 23:52:17,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:52:19,265 INFO L124 PetriNetUnfolderBase]: 1973/7250 cut-off events. [2023-11-28 23:52:19,265 INFO L125 PetriNetUnfolderBase]: For 8553/8626 co-relation queries the response was YES. [2023-11-28 23:52:19,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19933 conditions, 7250 events. 1973/7250 cut-off events. For 8553/8626 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 50276 event pairs, 198 based on Foata normal form. 4/6921 useless extension candidates. Maximal degree in co-relation 19389. Up to 1785 conditions per place. [2023-11-28 23:52:19,304 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 26 selfloop transitions, 25 changer transitions 0/656 dead transitions. [2023-11-28 23:52:19,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 656 transitions, 3658 flow [2023-11-28 23:52:19,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 23:52:19,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 23:52:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5221 transitions. [2023-11-28 23:52:19,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9311574817192795 [2023-11-28 23:52:19,317 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5221 transitions. [2023-11-28 23:52:19,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5221 transitions. [2023-11-28 23:52:19,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:52:19,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5221 transitions. [2023-11-28 23:52:19,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 248.61904761904762) internal successors, (5221), 21 states have internal predecessors, (5221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:19,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 267.0) internal successors, (5874), 22 states have internal predecessors, (5874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:19,349 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 267.0) internal successors, (5874), 22 states have internal predecessors, (5874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:19,349 INFO L175 Difference]: Start difference. First operand has 305 places, 632 transitions, 3456 flow. Second operand 21 states and 5221 transitions. [2023-11-28 23:52:19,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 656 transitions, 3658 flow [2023-11-28 23:52:19,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 656 transitions, 3616 flow, removed 18 selfloop flow, removed 3 redundant places. [2023-11-28 23:52:19,406 INFO L231 Difference]: Finished difference. Result has 327 places, 645 transitions, 3558 flow [2023-11-28 23:52:19,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3414, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3558, PETRI_PLACES=327, PETRI_TRANSITIONS=645} [2023-11-28 23:52:19,408 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 63 predicate places. [2023-11-28 23:52:19,408 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 645 transitions, 3558 flow [2023-11-28 23:52:19,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 248.0) internal successors, (4464), 18 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:19,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:19,411 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:19,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 23:52:19,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:19,618 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:19,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:19,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1870437314, now seen corresponding path program 2 times [2023-11-28 23:52:19,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:19,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445069390] [2023-11-28 23:52:19,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:19,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:20,564 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:20,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:20,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445069390] [2023-11-28 23:52:20,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445069390] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:20,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663042983] [2023-11-28 23:52:20,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:52:20,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:20,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:20,566 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:20,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 23:52:20,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:52:20,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:52:20,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-28 23:52:20,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:20,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-28 23:52:20,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-28 23:52:20,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:52:20,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-28 23:52:20,955 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:52:20,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-28 23:52:20,992 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2023-11-28 23:52:20,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:20,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663042983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:20,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:52:20,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-28 23:52:20,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295039291] [2023-11-28 23:52:20,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:20,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:52:20,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:20,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:52:20,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-28 23:52:21,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 267 [2023-11-28 23:52:21,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 645 transitions, 3558 flow. Second operand has 6 states, 6 states have (on average 187.66666666666666) internal successors, (1126), 6 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:21,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:21,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 267 [2023-11-28 23:52:21,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:52:26,792 INFO L124 PetriNetUnfolderBase]: 4449/14897 cut-off events. [2023-11-28 23:52:26,792 INFO L125 PetriNetUnfolderBase]: For 26810/26999 co-relation queries the response was YES. [2023-11-28 23:52:26,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46798 conditions, 14897 events. 4449/14897 cut-off events. For 26810/26999 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 120780 event pairs, 1707 based on Foata normal form. 0/14081 useless extension candidates. Maximal degree in co-relation 46162. Up to 6971 conditions per place. [2023-11-28 23:52:26,863 INFO L140 encePairwiseOnDemand]: 224/267 looper letters, 395 selfloop transitions, 170 changer transitions 0/814 dead transitions. [2023-11-28 23:52:26,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 814 transitions, 6330 flow [2023-11-28 23:52:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:52:26,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:52:26,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1342 transitions. [2023-11-28 23:52:26,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8377028714107366 [2023-11-28 23:52:26,867 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1342 transitions. [2023-11-28 23:52:26,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1342 transitions. [2023-11-28 23:52:26,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:52:26,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1342 transitions. [2023-11-28 23:52:26,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:26,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:26,872 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:26,872 INFO L175 Difference]: Start difference. First operand has 327 places, 645 transitions, 3558 flow. Second operand 6 states and 1342 transitions. [2023-11-28 23:52:26,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 814 transitions, 6330 flow [2023-11-28 23:52:26,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 814 transitions, 6304 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-28 23:52:26,922 INFO L231 Difference]: Finished difference. Result has 331 places, 806 transitions, 5946 flow [2023-11-28 23:52:26,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3532, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5946, PETRI_PLACES=331, PETRI_TRANSITIONS=806} [2023-11-28 23:52:26,923 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 67 predicate places. [2023-11-28 23:52:26,924 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 806 transitions, 5946 flow [2023-11-28 23:52:26,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.66666666666666) internal successors, (1126), 6 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:26,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:26,925 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:26,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-28 23:52:27,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:27,125 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:27,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:27,126 INFO L85 PathProgramCache]: Analyzing trace with hash 539432056, now seen corresponding path program 1 times [2023-11-28 23:52:27,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:27,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151542967] [2023-11-28 23:52:27,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:27,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:27,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:27,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151542967] [2023-11-28 23:52:27,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151542967] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:27,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081713108] [2023-11-28 23:52:27,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:27,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:27,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:27,865 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:27,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 23:52:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:28,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-28 23:52:28,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:28,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:52:29,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081713108] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:52:29,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:52:29,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-28 23:52:29,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017843711] [2023-11-28 23:52:29,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:52:29,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-28 23:52:29,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:29,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-28 23:52:29,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-28 23:52:29,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 267 [2023-11-28 23:52:29,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 806 transitions, 5946 flow. Second operand has 23 states, 23 states have (on average 248.2173913043478) internal successors, (5709), 23 states have internal predecessors, (5709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:29,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:29,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 267 [2023-11-28 23:52:29,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:52:33,420 INFO L124 PetriNetUnfolderBase]: 2654/9484 cut-off events. [2023-11-28 23:52:33,420 INFO L125 PetriNetUnfolderBase]: For 19996/20170 co-relation queries the response was YES. [2023-11-28 23:52:33,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30253 conditions, 9484 events. 2654/9484 cut-off events. For 19996/20170 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 69132 event pairs, 254 based on Foata normal form. 3/9108 useless extension candidates. Maximal degree in co-relation 29447. Up to 2549 conditions per place. [2023-11-28 23:52:33,468 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 29 selfloop transitions, 34 changer transitions 0/829 dead transitions. [2023-11-28 23:52:33,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 829 transitions, 6206 flow [2023-11-28 23:52:33,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-28 23:52:33,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-28 23:52:33,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7446 transitions. [2023-11-28 23:52:33,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9295880149812734 [2023-11-28 23:52:33,481 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7446 transitions. [2023-11-28 23:52:33,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7446 transitions. [2023-11-28 23:52:33,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:52:33,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7446 transitions. [2023-11-28 23:52:33,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 248.2) internal successors, (7446), 30 states have internal predecessors, (7446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:33,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 267.0) internal successors, (8277), 31 states have internal predecessors, (8277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:33,508 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 267.0) internal successors, (8277), 31 states have internal predecessors, (8277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:33,508 INFO L175 Difference]: Start difference. First operand has 331 places, 806 transitions, 5946 flow. Second operand 30 states and 7446 transitions. [2023-11-28 23:52:33,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 829 transitions, 6206 flow [2023-11-28 23:52:33,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 829 transitions, 5006 flow, removed 600 selfloop flow, removed 0 redundant places. [2023-11-28 23:52:33,577 INFO L231 Difference]: Finished difference. Result has 364 places, 816 transitions, 4912 flow [2023-11-28 23:52:33,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4746, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=806, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=779, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4912, PETRI_PLACES=364, PETRI_TRANSITIONS=816} [2023-11-28 23:52:33,578 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 100 predicate places. [2023-11-28 23:52:33,579 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 816 transitions, 4912 flow [2023-11-28 23:52:33,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 248.2173913043478) internal successors, (5709), 23 states have internal predecessors, (5709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:33,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:33,580 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:33,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-28 23:52:33,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4f4989-218b-4f83-8682-035f300e5482/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-28 23:52:33,781 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:33,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:33,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1472867401, now seen corresponding path program 2 times [2023-11-28 23:52:33,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:33,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675246950] [2023-11-28 23:52:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:33,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:52:35,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:35,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675246950] [2023-11-28 23:52:35,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675246950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:35,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:35,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:52:35,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923977409] [2023-11-28 23:52:35,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:35,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:52:35,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:35,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:52:35,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:52:36,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:52:36,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 816 transitions, 4912 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:36,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:36,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:52:36,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:52:43,862 INFO L124 PetriNetUnfolderBase]: 5353/17057 cut-off events. [2023-11-28 23:52:43,862 INFO L125 PetriNetUnfolderBase]: For 35867/36362 co-relation queries the response was YES. [2023-11-28 23:52:43,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58757 conditions, 17057 events. 5353/17057 cut-off events. For 35867/36362 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 138104 event pairs, 1781 based on Foata normal form. 48/16363 useless extension candidates. Maximal degree in co-relation 57789. Up to 5561 conditions per place. [2023-11-28 23:52:43,958 INFO L140 encePairwiseOnDemand]: 221/267 looper letters, 673 selfloop transitions, 206 changer transitions 0/1126 dead transitions. [2023-11-28 23:52:43,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 1126 transitions, 8884 flow [2023-11-28 23:52:43,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 23:52:43,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-28 23:52:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3227 transitions. [2023-11-28 23:52:43,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7109495483586693 [2023-11-28 23:52:43,966 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3227 transitions. [2023-11-28 23:52:43,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3227 transitions. [2023-11-28 23:52:43,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:52:43,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3227 transitions. [2023-11-28 23:52:43,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 189.8235294117647) internal successors, (3227), 17 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:43,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:43,983 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:43,983 INFO L175 Difference]: Start difference. First operand has 364 places, 816 transitions, 4912 flow. Second operand 17 states and 3227 transitions. [2023-11-28 23:52:43,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 1126 transitions, 8884 flow [2023-11-28 23:52:44,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 1126 transitions, 8836 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-28 23:52:44,107 INFO L231 Difference]: Finished difference. Result has 374 places, 918 transitions, 6372 flow [2023-11-28 23:52:44,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4864, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=816, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=655, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6372, PETRI_PLACES=374, PETRI_TRANSITIONS=918} [2023-11-28 23:52:44,109 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 110 predicate places. [2023-11-28 23:52:44,109 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 918 transitions, 6372 flow [2023-11-28 23:52:44,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:44,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:44,110 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:44,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-28 23:52:44,110 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:44,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:44,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1647115339, now seen corresponding path program 3 times [2023-11-28 23:52:44,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:44,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740104627] [2023-11-28 23:52:44,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:44,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:52:46,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:46,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740104627] [2023-11-28 23:52:46,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740104627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:46,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:46,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:52:46,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830399844] [2023-11-28 23:52:46,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:46,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:52:46,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:46,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:52:46,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:52:47,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:52:47,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 918 transitions, 6372 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:47,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:47,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:52:47,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:52:55,983 INFO L124 PetriNetUnfolderBase]: 6229/19197 cut-off events. [2023-11-28 23:52:55,984 INFO L125 PetriNetUnfolderBase]: For 58482/58708 co-relation queries the response was YES. [2023-11-28 23:52:56,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72993 conditions, 19197 events. 6229/19197 cut-off events. For 58482/58708 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 157308 event pairs, 1642 based on Foata normal form. 94/18593 useless extension candidates. Maximal degree in co-relation 71945. Up to 4646 conditions per place. [2023-11-28 23:52:56,155 INFO L140 encePairwiseOnDemand]: 225/267 looper letters, 931 selfloop transitions, 171 changer transitions 0/1349 dead transitions. [2023-11-28 23:52:56,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 1349 transitions, 12796 flow [2023-11-28 23:52:56,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 23:52:56,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-28 23:52:56,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4296 transitions. [2023-11-28 23:52:56,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6995603321934538 [2023-11-28 23:52:56,161 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4296 transitions. [2023-11-28 23:52:56,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4296 transitions. [2023-11-28 23:52:56,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:52:56,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4296 transitions. [2023-11-28 23:52:56,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 186.7826086956522) internal successors, (4296), 23 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:56,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:56,176 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:56,176 INFO L175 Difference]: Start difference. First operand has 374 places, 918 transitions, 6372 flow. Second operand 23 states and 4296 transitions. [2023-11-28 23:52:56,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 1349 transitions, 12796 flow [2023-11-28 23:52:56,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 1349 transitions, 12728 flow, removed 15 selfloop flow, removed 3 redundant places. [2023-11-28 23:52:56,374 INFO L231 Difference]: Finished difference. Result has 410 places, 1035 transitions, 8282 flow [2023-11-28 23:52:56,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=6336, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=918, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=788, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=8282, PETRI_PLACES=410, PETRI_TRANSITIONS=1035} [2023-11-28 23:52:56,376 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 146 predicate places. [2023-11-28 23:52:56,376 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 1035 transitions, 8282 flow [2023-11-28 23:52:56,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:56,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:56,377 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:56,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 23:52:56,377 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:52:56,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:56,377 INFO L85 PathProgramCache]: Analyzing trace with hash 2138268133, now seen corresponding path program 1 times [2023-11-28 23:52:56,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:56,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669363165] [2023-11-28 23:52:56,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:56,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:52:58,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:58,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669363165] [2023-11-28 23:52:58,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669363165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:58,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:58,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:52:58,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860487680] [2023-11-28 23:52:58,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:58,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:52:58,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:58,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:52:58,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:52:59,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:52:59,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 1035 transitions, 8282 flow. Second operand has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:52:59,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:59,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:52:59,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:53:09,816 INFO L124 PetriNetUnfolderBase]: 7008/21339 cut-off events. [2023-11-28 23:53:09,817 INFO L125 PetriNetUnfolderBase]: For 86052/86981 co-relation queries the response was YES. [2023-11-28 23:53:09,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88049 conditions, 21339 events. 7008/21339 cut-off events. For 86052/86981 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 178444 event pairs, 1776 based on Foata normal form. 155/20736 useless extension candidates. Maximal degree in co-relation 86974. Up to 5484 conditions per place. [2023-11-28 23:53:10,007 INFO L140 encePairwiseOnDemand]: 212/267 looper letters, 970 selfloop transitions, 192 changer transitions 0/1458 dead transitions. [2023-11-28 23:53:10,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 1458 transitions, 14814 flow [2023-11-28 23:53:10,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 23:53:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-28 23:53:10,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4260 transitions. [2023-11-28 23:53:10,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6936980947728383 [2023-11-28 23:53:10,011 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4260 transitions. [2023-11-28 23:53:10,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4260 transitions. [2023-11-28 23:53:10,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:53:10,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4260 transitions. [2023-11-28 23:53:10,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 185.2173913043478) internal successors, (4260), 23 states have internal predecessors, (4260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:10,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:10,021 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:10,021 INFO L175 Difference]: Start difference. First operand has 410 places, 1035 transitions, 8282 flow. Second operand 23 states and 4260 transitions. [2023-11-28 23:53:10,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 1458 transitions, 14814 flow [2023-11-28 23:53:10,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1458 transitions, 14554 flow, removed 130 selfloop flow, removed 0 redundant places. [2023-11-28 23:53:10,634 INFO L231 Difference]: Finished difference. Result has 449 places, 1185 transitions, 10254 flow [2023-11-28 23:53:10,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=8052, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1035, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=884, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=10254, PETRI_PLACES=449, PETRI_TRANSITIONS=1185} [2023-11-28 23:53:10,635 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 185 predicate places. [2023-11-28 23:53:10,636 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 1185 transitions, 10254 flow [2023-11-28 23:53:10,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:10,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:53:10,636 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:53:10,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 23:53:10,636 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:53:10,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:53:10,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1367990859, now seen corresponding path program 4 times [2023-11-28 23:53:10,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:53:10,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260690419] [2023-11-28 23:53:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:53:10,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:53:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:53:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:53:12,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:53:12,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260690419] [2023-11-28 23:53:12,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260690419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:53:12,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:53:12,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:53:12,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639373712] [2023-11-28 23:53:12,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:53:12,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:53:12,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:53:12,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:53:12,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:53:13,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:53:13,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 1185 transitions, 10254 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:13,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:53:13,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:53:13,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:53:25,145 INFO L124 PetriNetUnfolderBase]: 8044/23525 cut-off events. [2023-11-28 23:53:25,145 INFO L125 PetriNetUnfolderBase]: For 111634/112538 co-relation queries the response was YES. [2023-11-28 23:53:25,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106015 conditions, 23525 events. 8044/23525 cut-off events. For 111634/112538 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 199214 event pairs, 2099 based on Foata normal form. 129/22853 useless extension candidates. Maximal degree in co-relation 105532. Up to 11017 conditions per place. [2023-11-28 23:53:25,376 INFO L140 encePairwiseOnDemand]: 225/267 looper letters, 1009 selfloop transitions, 215 changer transitions 0/1496 dead transitions. [2023-11-28 23:53:25,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 1496 transitions, 16378 flow [2023-11-28 23:53:25,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-28 23:53:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-28 23:53:25,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3690 transitions. [2023-11-28 23:53:25,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6910112359550562 [2023-11-28 23:53:25,380 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3690 transitions. [2023-11-28 23:53:25,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3690 transitions. [2023-11-28 23:53:25,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:53:25,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3690 transitions. [2023-11-28 23:53:25,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 184.5) internal successors, (3690), 20 states have internal predecessors, (3690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:25,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:25,394 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:25,395 INFO L175 Difference]: Start difference. First operand has 449 places, 1185 transitions, 10254 flow. Second operand 20 states and 3690 transitions. [2023-11-28 23:53:25,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 1496 transitions, 16378 flow [2023-11-28 23:53:26,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 1496 transitions, 16274 flow, removed 52 selfloop flow, removed 0 redundant places. [2023-11-28 23:53:26,488 INFO L231 Difference]: Finished difference. Result has 483 places, 1296 transitions, 12732 flow [2023-11-28 23:53:26,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=10164, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=999, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=12732, PETRI_PLACES=483, PETRI_TRANSITIONS=1296} [2023-11-28 23:53:26,490 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 219 predicate places. [2023-11-28 23:53:26,490 INFO L495 AbstractCegarLoop]: Abstraction has has 483 places, 1296 transitions, 12732 flow [2023-11-28 23:53:26,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:26,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:53:26,490 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:53:26,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-28 23:53:26,491 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:53:26,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:53:26,491 INFO L85 PathProgramCache]: Analyzing trace with hash -873320261, now seen corresponding path program 5 times [2023-11-28 23:53:26,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:53:26,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479714262] [2023-11-28 23:53:26,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:53:26,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:53:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:53:28,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:53:28,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:53:28,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479714262] [2023-11-28 23:53:28,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479714262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:53:28,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:53:28,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:53:28,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302725092] [2023-11-28 23:53:28,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:53:28,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:53:28,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:53:28,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:53:28,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:53:29,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:53:29,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 1296 transitions, 12732 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:29,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:53:29,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:53:29,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:53:43,178 INFO L124 PetriNetUnfolderBase]: 8893/25747 cut-off events. [2023-11-28 23:53:43,179 INFO L125 PetriNetUnfolderBase]: For 159692/160740 co-relation queries the response was YES. [2023-11-28 23:53:43,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124089 conditions, 25747 events. 8893/25747 cut-off events. For 159692/160740 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 222352 event pairs, 2179 based on Foata normal form. 133/25064 useless extension candidates. Maximal degree in co-relation 123579. Up to 12103 conditions per place. [2023-11-28 23:53:43,457 INFO L140 encePairwiseOnDemand]: 224/267 looper letters, 1087 selfloop transitions, 227 changer transitions 0/1586 dead transitions. [2023-11-28 23:53:43,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 1586 transitions, 18917 flow [2023-11-28 23:53:43,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 23:53:43,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-28 23:53:43,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2639 transitions. [2023-11-28 23:53:43,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7059925093632958 [2023-11-28 23:53:43,460 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2639 transitions. [2023-11-28 23:53:43,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2639 transitions. [2023-11-28 23:53:43,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:53:43,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2639 transitions. [2023-11-28 23:53:43,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 188.5) internal successors, (2639), 14 states have internal predecessors, (2639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:43,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:43,466 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:43,466 INFO L175 Difference]: Start difference. First operand has 483 places, 1296 transitions, 12732 flow. Second operand 14 states and 2639 transitions. [2023-11-28 23:53:43,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 1586 transitions, 18917 flow [2023-11-28 23:53:44,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 1586 transitions, 18453 flow, removed 232 selfloop flow, removed 0 redundant places. [2023-11-28 23:53:44,976 INFO L231 Difference]: Finished difference. Result has 508 places, 1391 transitions, 14922 flow [2023-11-28 23:53:44,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=12298, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1085, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14922, PETRI_PLACES=508, PETRI_TRANSITIONS=1391} [2023-11-28 23:53:44,977 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 244 predicate places. [2023-11-28 23:53:44,977 INFO L495 AbstractCegarLoop]: Abstraction has has 508 places, 1391 transitions, 14922 flow [2023-11-28 23:53:44,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:44,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:53:44,978 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:53:44,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-28 23:53:44,979 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:53:44,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:53:44,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1977534663, now seen corresponding path program 6 times [2023-11-28 23:53:44,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:53:44,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359662075] [2023-11-28 23:53:44,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:53:44,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:53:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:53:46,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:53:46,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:53:46,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359662075] [2023-11-28 23:53:46,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359662075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:53:46,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:53:46,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:53:46,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722925052] [2023-11-28 23:53:46,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:53:46,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:53:46,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:53:46,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:53:46,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:53:47,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:53:47,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 1391 transitions, 14922 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:53:47,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:53:47,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:53:47,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:54:02,524 INFO L124 PetriNetUnfolderBase]: 8975/25979 cut-off events. [2023-11-28 23:54:02,524 INFO L125 PetriNetUnfolderBase]: For 185164/186020 co-relation queries the response was YES. [2023-11-28 23:54:02,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129784 conditions, 25979 events. 8975/25979 cut-off events. For 185164/186020 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 225441 event pairs, 1855 based on Foata normal form. 162/25373 useless extension candidates. Maximal degree in co-relation 129322. Up to 7173 conditions per place. [2023-11-28 23:54:02,839 INFO L140 encePairwiseOnDemand]: 222/267 looper letters, 1052 selfloop transitions, 243 changer transitions 0/1567 dead transitions. [2023-11-28 23:54:02,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1567 transitions, 19679 flow [2023-11-28 23:54:02,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 23:54:02,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-28 23:54:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2655 transitions. [2023-11-28 23:54:02,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7102728731942215 [2023-11-28 23:54:02,841 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2655 transitions. [2023-11-28 23:54:02,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2655 transitions. [2023-11-28 23:54:02,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:54:02,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2655 transitions. [2023-11-28 23:54:02,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 189.64285714285714) internal successors, (2655), 14 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:02,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:02,848 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:02,848 INFO L175 Difference]: Start difference. First operand has 508 places, 1391 transitions, 14922 flow. Second operand 14 states and 2655 transitions. [2023-11-28 23:54:02,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 1567 transitions, 19679 flow [2023-11-28 23:54:04,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 1567 transitions, 19223 flow, removed 228 selfloop flow, removed 0 redundant places. [2023-11-28 23:54:04,931 INFO L231 Difference]: Finished difference. Result has 529 places, 1433 transitions, 16291 flow [2023-11-28 23:54:04,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=14490, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=201, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16291, PETRI_PLACES=529, PETRI_TRANSITIONS=1433} [2023-11-28 23:54:04,933 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 265 predicate places. [2023-11-28 23:54:04,933 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 1433 transitions, 16291 flow [2023-11-28 23:54:04,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:04,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:54:04,934 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:04,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-28 23:54:04,934 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:54:04,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:04,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2136350595, now seen corresponding path program 7 times [2023-11-28 23:54:04,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:04,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187349742] [2023-11-28 23:54:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:04,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:54:06,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:06,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187349742] [2023-11-28 23:54:06,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187349742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:54:06,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:54:06,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:54:06,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144625622] [2023-11-28 23:54:06,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:54:06,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:54:06,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:06,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:54:06,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:54:07,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:54:07,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 1433 transitions, 16291 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:07,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:54:07,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:54:07,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:54:22,770 INFO L124 PetriNetUnfolderBase]: 9163/26425 cut-off events. [2023-11-28 23:54:22,770 INFO L125 PetriNetUnfolderBase]: For 209813/210699 co-relation queries the response was YES. [2023-11-28 23:54:22,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136116 conditions, 26425 events. 9163/26425 cut-off events. For 209813/210699 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 229515 event pairs, 1869 based on Foata normal form. 236/25891 useless extension candidates. Maximal degree in co-relation 135627. Up to 5847 conditions per place. [2023-11-28 23:54:23,076 INFO L140 encePairwiseOnDemand]: 222/267 looper letters, 1203 selfloop transitions, 302 changer transitions 0/1777 dead transitions. [2023-11-28 23:54:23,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 1777 transitions, 23875 flow [2023-11-28 23:54:23,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 23:54:23,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 23:54:23,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3915 transitions. [2023-11-28 23:54:23,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6982343499197432 [2023-11-28 23:54:23,081 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3915 transitions. [2023-11-28 23:54:23,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3915 transitions. [2023-11-28 23:54:23,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:54:23,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3915 transitions. [2023-11-28 23:54:23,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 186.42857142857142) internal successors, (3915), 21 states have internal predecessors, (3915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:23,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 267.0) internal successors, (5874), 22 states have internal predecessors, (5874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:23,095 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 267.0) internal successors, (5874), 22 states have internal predecessors, (5874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:23,095 INFO L175 Difference]: Start difference. First operand has 529 places, 1433 transitions, 16291 flow. Second operand 21 states and 3915 transitions. [2023-11-28 23:54:23,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 1777 transitions, 23875 flow [2023-11-28 23:54:25,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 1777 transitions, 23509 flow, removed 142 selfloop flow, removed 4 redundant places. [2023-11-28 23:54:25,138 INFO L231 Difference]: Finished difference. Result has 556 places, 1511 transitions, 18796 flow [2023-11-28 23:54:25,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=16083, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=226, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=18796, PETRI_PLACES=556, PETRI_TRANSITIONS=1511} [2023-11-28 23:54:25,139 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 292 predicate places. [2023-11-28 23:54:25,139 INFO L495 AbstractCegarLoop]: Abstraction has has 556 places, 1511 transitions, 18796 flow [2023-11-28 23:54:25,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:25,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:54:25,140 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:25,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-28 23:54:25,140 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:54:25,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:25,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2123594763, now seen corresponding path program 8 times [2023-11-28 23:54:25,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:25,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402119020] [2023-11-28 23:54:25,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:25,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:26,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:54:26,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:26,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402119020] [2023-11-28 23:54:26,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402119020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:54:26,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:54:26,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:54:26,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934701721] [2023-11-28 23:54:26,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:54:26,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:54:26,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:26,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:54:26,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:54:28,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:54:28,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 1511 transitions, 18796 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:28,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:54:28,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:54:28,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:54:44,267 INFO L124 PetriNetUnfolderBase]: 9251/26653 cut-off events. [2023-11-28 23:54:44,267 INFO L125 PetriNetUnfolderBase]: For 245402/246392 co-relation queries the response was YES. [2023-11-28 23:54:44,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142862 conditions, 26653 events. 9251/26653 cut-off events. For 245402/246392 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 232300 event pairs, 1907 based on Foata normal form. 222/26111 useless extension candidates. Maximal degree in co-relation 142348. Up to 6628 conditions per place. [2023-11-28 23:54:44,613 INFO L140 encePairwiseOnDemand]: 219/267 looper letters, 968 selfloop transitions, 474 changer transitions 0/1714 dead transitions. [2023-11-28 23:54:44,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 1714 transitions, 24282 flow [2023-11-28 23:54:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:54:44,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-28 23:54:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2385 transitions. [2023-11-28 23:54:44,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2023-11-28 23:54:44,616 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2385 transitions. [2023-11-28 23:54:44,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2385 transitions. [2023-11-28 23:54:44,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:54:44,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2385 transitions. [2023-11-28 23:54:44,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 198.75) internal successors, (2385), 12 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:44,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:44,624 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:44,624 INFO L175 Difference]: Start difference. First operand has 556 places, 1511 transitions, 18796 flow. Second operand 12 states and 2385 transitions. [2023-11-28 23:54:44,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 1714 transitions, 24282 flow [2023-11-28 23:54:47,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 1714 transitions, 23642 flow, removed 247 selfloop flow, removed 8 redundant places. [2023-11-28 23:54:47,373 INFO L231 Difference]: Finished difference. Result has 564 places, 1545 transitions, 20627 flow [2023-11-28 23:54:47,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=18217, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1511, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=440, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1042, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=20627, PETRI_PLACES=564, PETRI_TRANSITIONS=1545} [2023-11-28 23:54:47,375 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 300 predicate places. [2023-11-28 23:54:47,375 INFO L495 AbstractCegarLoop]: Abstraction has has 564 places, 1545 transitions, 20627 flow [2023-11-28 23:54:47,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:47,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:54:47,376 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:47,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-28 23:54:47,376 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:54:47,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:47,376 INFO L85 PathProgramCache]: Analyzing trace with hash 968528403, now seen corresponding path program 9 times [2023-11-28 23:54:47,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:47,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327000788] [2023-11-28 23:54:47,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:47,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:48,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:54:48,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:48,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327000788] [2023-11-28 23:54:48,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327000788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:54:48,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:54:48,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:54:48,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619104592] [2023-11-28 23:54:48,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:54:48,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:54:48,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:48,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:54:48,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:54:49,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:54:49,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 1545 transitions, 20627 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:54:49,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:54:49,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:54:49,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:55:06,938 INFO L124 PetriNetUnfolderBase]: 9541/27383 cut-off events. [2023-11-28 23:55:06,939 INFO L125 PetriNetUnfolderBase]: For 285916/286924 co-relation queries the response was YES. [2023-11-28 23:55:07,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152902 conditions, 27383 events. 9541/27383 cut-off events. For 285916/286924 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 239961 event pairs, 1907 based on Foata normal form. 280/26895 useless extension candidates. Maximal degree in co-relation 152363. Up to 6744 conditions per place. [2023-11-28 23:55:07,310 INFO L140 encePairwiseOnDemand]: 221/267 looper letters, 1039 selfloop transitions, 495 changer transitions 0/1806 dead transitions. [2023-11-28 23:55:07,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 1806 transitions, 27465 flow [2023-11-28 23:55:07,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-28 23:55:07,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-28 23:55:07,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3049 transitions. [2023-11-28 23:55:07,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7137172284644194 [2023-11-28 23:55:07,314 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3049 transitions. [2023-11-28 23:55:07,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3049 transitions. [2023-11-28 23:55:07,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:55:07,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3049 transitions. [2023-11-28 23:55:07,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 190.5625) internal successors, (3049), 16 states have internal predecessors, (3049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:07,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:07,324 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:07,324 INFO L175 Difference]: Start difference. First operand has 564 places, 1545 transitions, 20627 flow. Second operand 16 states and 3049 transitions. [2023-11-28 23:55:07,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 1806 transitions, 27465 flow [2023-11-28 23:55:10,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 1806 transitions, 27196 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 23:55:10,397 INFO L231 Difference]: Finished difference. Result has 583 places, 1611 transitions, 23569 flow [2023-11-28 23:55:10,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=20371, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=435, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1066, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=23569, PETRI_PLACES=583, PETRI_TRANSITIONS=1611} [2023-11-28 23:55:10,399 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 319 predicate places. [2023-11-28 23:55:10,399 INFO L495 AbstractCegarLoop]: Abstraction has has 583 places, 1611 transitions, 23569 flow [2023-11-28 23:55:10,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:10,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:55:10,399 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:10,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-28 23:55:10,399 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:55:10,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:10,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2131518863, now seen corresponding path program 10 times [2023-11-28 23:55:10,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:10,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256007414] [2023-11-28 23:55:10,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:10,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:11,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:55:11,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:11,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256007414] [2023-11-28 23:55:11,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256007414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:11,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:11,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:55:11,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594006833] [2023-11-28 23:55:11,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:11,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:55:11,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:11,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:55:11,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:55:13,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:55:13,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 1611 transitions, 23569 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:13,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:55:13,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:55:13,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:55:31,319 INFO L124 PetriNetUnfolderBase]: 9703/27767 cut-off events. [2023-11-28 23:55:31,319 INFO L125 PetriNetUnfolderBase]: For 343148/344210 co-relation queries the response was YES. [2023-11-28 23:55:31,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162164 conditions, 27767 events. 9703/27767 cut-off events. For 343148/344210 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 244052 event pairs, 1901 based on Foata normal form. 312/27311 useless extension candidates. Maximal degree in co-relation 161606. Up to 7154 conditions per place. [2023-11-28 23:55:31,711 INFO L140 encePairwiseOnDemand]: 219/267 looper letters, 1041 selfloop transitions, 541 changer transitions 0/1854 dead transitions. [2023-11-28 23:55:31,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 1854 transitions, 30358 flow [2023-11-28 23:55:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 23:55:31,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-28 23:55:31,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2912 transitions. [2023-11-28 23:55:31,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7270911360799002 [2023-11-28 23:55:31,714 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2912 transitions. [2023-11-28 23:55:31,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2912 transitions. [2023-11-28 23:55:31,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:55:31,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2912 transitions. [2023-11-28 23:55:31,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 194.13333333333333) internal successors, (2912), 15 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:31,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:31,719 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:31,719 INFO L175 Difference]: Start difference. First operand has 583 places, 1611 transitions, 23569 flow. Second operand 15 states and 2912 transitions. [2023-11-28 23:55:31,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 1854 transitions, 30358 flow [2023-11-28 23:55:35,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 594 places, 1854 transitions, 29984 flow, removed 148 selfloop flow, removed 3 redundant places. [2023-11-28 23:55:35,192 INFO L231 Difference]: Finished difference. Result has 603 places, 1669 transitions, 26797 flow [2023-11-28 23:55:35,194 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=23205, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=486, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1083, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=26797, PETRI_PLACES=603, PETRI_TRANSITIONS=1669} [2023-11-28 23:55:35,194 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 339 predicate places. [2023-11-28 23:55:35,194 INFO L495 AbstractCegarLoop]: Abstraction has has 603 places, 1669 transitions, 26797 flow [2023-11-28 23:55:35,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:35,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:55:35,195 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:35,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-28 23:55:35,195 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:55:35,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:35,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1092598389, now seen corresponding path program 11 times [2023-11-28 23:55:35,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:35,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92750164] [2023-11-28 23:55:35,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:35,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:55:36,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:36,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92750164] [2023-11-28 23:55:36,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92750164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:36,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:36,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:55:36,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207923300] [2023-11-28 23:55:36,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:36,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:55:36,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:36,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:55:36,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:55:38,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:55:38,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 1669 transitions, 26797 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:38,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:55:38,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:55:38,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:55:57,685 INFO L124 PetriNetUnfolderBase]: 9875/28237 cut-off events. [2023-11-28 23:55:57,685 INFO L125 PetriNetUnfolderBase]: For 401845/402897 co-relation queries the response was YES. [2023-11-28 23:55:58,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172914 conditions, 28237 events. 9875/28237 cut-off events. For 401845/402897 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 249198 event pairs, 1881 based on Foata normal form. 360/27823 useless extension candidates. Maximal degree in co-relation 172325. Up to 7058 conditions per place. [2023-11-28 23:55:58,200 INFO L140 encePairwiseOnDemand]: 220/267 looper letters, 1103 selfloop transitions, 566 changer transitions 0/1941 dead transitions. [2023-11-28 23:55:58,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 1941 transitions, 34518 flow [2023-11-28 23:55:58,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-28 23:55:58,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-28 23:55:58,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3072 transitions. [2023-11-28 23:55:58,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7191011235955056 [2023-11-28 23:55:58,204 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3072 transitions. [2023-11-28 23:55:58,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3072 transitions. [2023-11-28 23:55:58,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:55:58,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3072 transitions. [2023-11-28 23:55:58,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 192.0) internal successors, (3072), 16 states have internal predecessors, (3072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:58,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:58,213 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:58,213 INFO L175 Difference]: Start difference. First operand has 603 places, 1669 transitions, 26797 flow. Second operand 16 states and 3072 transitions. [2023-11-28 23:55:58,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 1941 transitions, 34518 flow [2023-11-28 23:56:02,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 613 places, 1941 transitions, 34049 flow, removed 102 selfloop flow, removed 5 redundant places. [2023-11-28 23:56:02,251 INFO L231 Difference]: Finished difference. Result has 623 places, 1741 transitions, 30221 flow [2023-11-28 23:56:02,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=26332, PETRI_DIFFERENCE_MINUEND_PLACES=598, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1669, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=498, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=30221, PETRI_PLACES=623, PETRI_TRANSITIONS=1741} [2023-11-28 23:56:02,253 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 359 predicate places. [2023-11-28 23:56:02,253 INFO L495 AbstractCegarLoop]: Abstraction has has 623 places, 1741 transitions, 30221 flow [2023-11-28 23:56:02,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:56:02,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:56:02,253 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:02,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-28 23:56:02,253 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:56:02,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:02,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1565396163, now seen corresponding path program 12 times [2023-11-28 23:56:02,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:02,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028584240] [2023-11-28 23:56:02,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:02,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:56:03,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:03,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028584240] [2023-11-28 23:56:03,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028584240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:03,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:03,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:56:03,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629429030] [2023-11-28 23:56:03,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:03,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:56:03,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:03,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:56:03,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:56:04,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:56:04,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 1741 transitions, 30221 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:56:04,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:56:04,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:56:04,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:56:25,572 INFO L124 PetriNetUnfolderBase]: 9935/28391 cut-off events. [2023-11-28 23:56:25,572 INFO L125 PetriNetUnfolderBase]: For 461603/462793 co-relation queries the response was YES. [2023-11-28 23:56:26,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180361 conditions, 28391 events. 9935/28391 cut-off events. For 461603/462793 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 250921 event pairs, 1907 based on Foata normal form. 378/27997 useless extension candidates. Maximal degree in co-relation 179750. Up to 7618 conditions per place. [2023-11-28 23:56:26,205 INFO L140 encePairwiseOnDemand]: 220/267 looper letters, 1075 selfloop transitions, 578 changer transitions 0/1925 dead transitions. [2023-11-28 23:56:26,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 1925 transitions, 36154 flow [2023-11-28 23:56:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 23:56:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-28 23:56:26,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2535 transitions. [2023-11-28 23:56:26,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7303370786516854 [2023-11-28 23:56:26,208 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2535 transitions. [2023-11-28 23:56:26,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2535 transitions. [2023-11-28 23:56:26,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:56:26,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2535 transitions. [2023-11-28 23:56:26,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 195.0) internal successors, (2535), 13 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:56:26,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:56:26,213 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:56:26,213 INFO L175 Difference]: Start difference. First operand has 623 places, 1741 transitions, 30221 flow. Second operand 13 states and 2535 transitions. [2023-11-28 23:56:26,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 1925 transitions, 36154 flow [2023-11-28 23:56:30,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 1925 transitions, 35606 flow, removed 182 selfloop flow, removed 4 redundant places. [2023-11-28 23:56:30,654 INFO L231 Difference]: Finished difference. Result has 638 places, 1773 transitions, 32988 flow [2023-11-28 23:56:30,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=29681, PETRI_DIFFERENCE_MINUEND_PLACES=619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1741, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=547, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=32988, PETRI_PLACES=638, PETRI_TRANSITIONS=1773} [2023-11-28 23:56:30,656 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 374 predicate places. [2023-11-28 23:56:30,656 INFO L495 AbstractCegarLoop]: Abstraction has has 638 places, 1773 transitions, 32988 flow [2023-11-28 23:56:30,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:56:30,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:56:30,657 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:30,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-28 23:56:30,657 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:56:30,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:30,657 INFO L85 PathProgramCache]: Analyzing trace with hash -335927815, now seen corresponding path program 13 times [2023-11-28 23:56:30,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:30,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962191589] [2023-11-28 23:56:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:30,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:56:32,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:32,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962191589] [2023-11-28 23:56:32,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962191589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:32,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:32,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:56:32,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734466965] [2023-11-28 23:56:32,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:32,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:56:32,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:32,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:56:32,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:56:33,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:56:33,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 638 places, 1773 transitions, 32988 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:56:33,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:56:33,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:56:33,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:56:54,764 INFO L124 PetriNetUnfolderBase]: 9973/28519 cut-off events. [2023-11-28 23:56:54,764 INFO L125 PetriNetUnfolderBase]: For 525106/526442 co-relation queries the response was YES. [2023-11-28 23:56:55,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187330 conditions, 28519 events. 9973/28519 cut-off events. For 525106/526442 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 252339 event pairs, 1911 based on Foata normal form. 478/28227 useless extension candidates. Maximal degree in co-relation 186694. Up to 7554 conditions per place. [2023-11-28 23:56:55,351 INFO L140 encePairwiseOnDemand]: 220/267 looper letters, 1107 selfloop transitions, 602 changer transitions 0/1981 dead transitions. [2023-11-28 23:56:55,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 652 places, 1981 transitions, 39592 flow [2023-11-28 23:56:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 23:56:55,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-28 23:56:55,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2890 transitions. [2023-11-28 23:56:55,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7215980024968789 [2023-11-28 23:56:55,354 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2890 transitions. [2023-11-28 23:56:55,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2890 transitions. [2023-11-28 23:56:55,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:56:55,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2890 transitions. [2023-11-28 23:56:55,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 192.66666666666666) internal successors, (2890), 15 states have internal predecessors, (2890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:56:55,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:56:55,362 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:56:55,362 INFO L175 Difference]: Start difference. First operand has 638 places, 1773 transitions, 32988 flow. Second operand 15 states and 2890 transitions. [2023-11-28 23:56:55,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 652 places, 1981 transitions, 39592 flow [2023-11-28 23:57:00,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 648 places, 1981 transitions, 39224 flow, removed 92 selfloop flow, removed 4 redundant places. [2023-11-28 23:57:00,756 INFO L231 Difference]: Finished difference. Result has 653 places, 1817 transitions, 35968 flow [2023-11-28 23:57:00,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=32654, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1773, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=561, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=35968, PETRI_PLACES=653, PETRI_TRANSITIONS=1817} [2023-11-28 23:57:00,757 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 389 predicate places. [2023-11-28 23:57:00,757 INFO L495 AbstractCegarLoop]: Abstraction has has 653 places, 1817 transitions, 35968 flow [2023-11-28 23:57:00,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:57:00,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:57:00,758 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:00,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-28 23:57:00,758 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:57:00,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:00,759 INFO L85 PathProgramCache]: Analyzing trace with hash 933505683, now seen corresponding path program 14 times [2023-11-28 23:57:00,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:00,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755636785] [2023-11-28 23:57:00,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:00,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:02,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:57:02,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:02,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755636785] [2023-11-28 23:57:02,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755636785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:02,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:02,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:57:02,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616036529] [2023-11-28 23:57:02,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:02,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:57:02,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:02,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:57:02,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:57:03,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:57:03,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 653 places, 1817 transitions, 35968 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:57:03,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:57:03,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:57:03,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:57:26,968 INFO L124 PetriNetUnfolderBase]: 10039/28709 cut-off events. [2023-11-28 23:57:26,968 INFO L125 PetriNetUnfolderBase]: For 582426/583774 co-relation queries the response was YES. [2023-11-28 23:57:27,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194508 conditions, 28709 events. 10039/28709 cut-off events. For 582426/583774 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 254661 event pairs, 1933 based on Foata normal form. 456/28397 useless extension candidates. Maximal degree in co-relation 193853. Up to 7762 conditions per place. [2023-11-28 23:57:27,463 INFO L140 encePairwiseOnDemand]: 221/267 looper letters, 1105 selfloop transitions, 617 changer transitions 0/1994 dead transitions. [2023-11-28 23:57:27,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 665 places, 1994 transitions, 42024 flow [2023-11-28 23:57:27,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 23:57:27,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-28 23:57:27,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2508 transitions. [2023-11-28 23:57:27,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7225583405358686 [2023-11-28 23:57:27,466 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2508 transitions. [2023-11-28 23:57:27,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2508 transitions. [2023-11-28 23:57:27,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:57:27,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2508 transitions. [2023-11-28 23:57:27,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 192.92307692307693) internal successors, (2508), 13 states have internal predecessors, (2508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:57:27,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:57:27,470 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:57:27,470 INFO L175 Difference]: Start difference. First operand has 653 places, 1817 transitions, 35968 flow. Second operand 13 states and 2508 transitions. [2023-11-28 23:57:27,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 665 places, 1994 transitions, 42024 flow [2023-11-28 23:57:33,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 1994 transitions, 41643 flow, removed 95 selfloop flow, removed 5 redundant places. [2023-11-28 23:57:33,077 INFO L231 Difference]: Finished difference. Result has 667 places, 1849 transitions, 39191 flow [2023-11-28 23:57:33,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=35587, PETRI_DIFFERENCE_MINUEND_PLACES=648, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=586, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=39191, PETRI_PLACES=667, PETRI_TRANSITIONS=1849} [2023-11-28 23:57:33,080 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 403 predicate places. [2023-11-28 23:57:33,080 INFO L495 AbstractCegarLoop]: Abstraction has has 667 places, 1849 transitions, 39191 flow [2023-11-28 23:57:33,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:57:33,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:57:33,081 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:33,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-28 23:57:33,082 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:57:33,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:33,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1784801223, now seen corresponding path program 15 times [2023-11-28 23:57:33,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:33,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958280973] [2023-11-28 23:57:33,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:33,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:57:34,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:34,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958280973] [2023-11-28 23:57:34,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958280973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:34,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:34,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:57:34,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454437459] [2023-11-28 23:57:34,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:34,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:57:34,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:34,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:57:34,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:57:35,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:57:35,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 667 places, 1849 transitions, 39191 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:57:35,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:57:35,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:57:35,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:57:58,661 INFO L124 PetriNetUnfolderBase]: 10081/28787 cut-off events. [2023-11-28 23:57:58,661 INFO L125 PetriNetUnfolderBase]: For 657912/659236 co-relation queries the response was YES. [2023-11-28 23:57:59,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202181 conditions, 28787 events. 10081/28787 cut-off events. For 657912/659236 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 255391 event pairs, 1873 based on Foata normal form. 484/28495 useless extension candidates. Maximal degree in co-relation 201503. Up to 7708 conditions per place. [2023-11-28 23:57:59,398 INFO L140 encePairwiseOnDemand]: 221/267 looper letters, 1137 selfloop transitions, 640 changer transitions 0/2049 dead transitions. [2023-11-28 23:57:59,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 2049 transitions, 45942 flow [2023-11-28 23:57:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 23:57:59,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-28 23:57:59,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2863 transitions. [2023-11-28 23:57:59,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7148564294631711 [2023-11-28 23:57:59,401 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2863 transitions. [2023-11-28 23:57:59,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2863 transitions. [2023-11-28 23:57:59,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:57:59,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2863 transitions. [2023-11-28 23:57:59,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 190.86666666666667) internal successors, (2863), 15 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:57:59,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:57:59,406 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:57:59,406 INFO L175 Difference]: Start difference. First operand has 667 places, 1849 transitions, 39191 flow. Second operand 15 states and 2863 transitions. [2023-11-28 23:57:59,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 2049 transitions, 45942 flow [2023-11-28 23:58:05,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 678 places, 2049 transitions, 45748 flow, removed 58 selfloop flow, removed 3 redundant places. [2023-11-28 23:58:05,926 INFO L231 Difference]: Finished difference. Result has 683 places, 1892 transitions, 42607 flow [2023-11-28 23:58:05,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=39031, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1849, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=600, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=42607, PETRI_PLACES=683, PETRI_TRANSITIONS=1892} [2023-11-28 23:58:05,929 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 419 predicate places. [2023-11-28 23:58:05,929 INFO L495 AbstractCegarLoop]: Abstraction has has 683 places, 1892 transitions, 42607 flow [2023-11-28 23:58:05,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:58:05,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:58:05,930 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:05,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-28 23:58:05,930 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:58:05,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:05,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1888189961, now seen corresponding path program 16 times [2023-11-28 23:58:05,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:05,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525537508] [2023-11-28 23:58:05,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:05,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:58:07,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:07,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525537508] [2023-11-28 23:58:07,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525537508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:07,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:07,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:58:07,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873673189] [2023-11-28 23:58:07,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:07,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:58:07,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:07,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:58:07,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:58:08,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:58:08,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 683 places, 1892 transitions, 42607 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:58:08,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:58:08,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:58:08,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:58:33,474 INFO L124 PetriNetUnfolderBase]: 10437/29675 cut-off events. [2023-11-28 23:58:33,474 INFO L125 PetriNetUnfolderBase]: For 794798/796100 co-relation queries the response was YES. [2023-11-28 23:58:33,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218368 conditions, 29675 events. 10437/29675 cut-off events. For 794798/796100 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 263966 event pairs, 1881 based on Foata normal form. 540/29439 useless extension candidates. Maximal degree in co-relation 217671. Up to 8861 conditions per place. [2023-11-28 23:58:34,225 INFO L140 encePairwiseOnDemand]: 222/267 looper letters, 1378 selfloop transitions, 514 changer transitions 0/2164 dead transitions. [2023-11-28 23:58:34,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 700 places, 2164 transitions, 51456 flow [2023-11-28 23:58:34,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-28 23:58:34,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-28 23:58:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3378 transitions. [2023-11-28 23:58:34,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7028714107365793 [2023-11-28 23:58:34,228 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3378 transitions. [2023-11-28 23:58:34,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3378 transitions. [2023-11-28 23:58:34,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:58:34,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3378 transitions. [2023-11-28 23:58:34,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 187.66666666666666) internal successors, (3378), 18 states have internal predecessors, (3378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:58:34,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:58:34,233 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:58:34,233 INFO L175 Difference]: Start difference. First operand has 683 places, 1892 transitions, 42607 flow. Second operand 18 states and 3378 transitions. [2023-11-28 23:58:34,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 700 places, 2164 transitions, 51456 flow [2023-11-28 23:58:42,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 693 places, 2164 transitions, 50629 flow, removed 99 selfloop flow, removed 7 redundant places. [2023-11-28 23:58:42,095 INFO L231 Difference]: Finished difference. Result has 703 places, 1962 transitions, 46114 flow [2023-11-28 23:58:42,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=41808, PETRI_DIFFERENCE_MINUEND_PLACES=676, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1892, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=446, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=46114, PETRI_PLACES=703, PETRI_TRANSITIONS=1962} [2023-11-28 23:58:42,097 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 439 predicate places. [2023-11-28 23:58:42,097 INFO L495 AbstractCegarLoop]: Abstraction has has 703 places, 1962 transitions, 46114 flow [2023-11-28 23:58:42,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:58:42,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:58:42,098 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:42,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-28 23:58:42,098 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:58:42,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:42,098 INFO L85 PathProgramCache]: Analyzing trace with hash 605148691, now seen corresponding path program 17 times [2023-11-28 23:58:42,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:42,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040670830] [2023-11-28 23:58:42,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:42,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:58:43,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:43,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040670830] [2023-11-28 23:58:43,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040670830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:43,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:43,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:58:43,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525634576] [2023-11-28 23:58:43,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:43,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:58:43,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:43,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:58:43,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:58:44,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:58:44,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 1962 transitions, 46114 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:58:44,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:58:44,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:58:44,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:59:15,349 INFO L124 PetriNetUnfolderBase]: 10579/30015 cut-off events. [2023-11-28 23:59:15,349 INFO L125 PetriNetUnfolderBase]: For 900012/901422 co-relation queries the response was YES. [2023-11-28 23:59:15,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229354 conditions, 30015 events. 10579/30015 cut-off events. For 900012/901422 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 267580 event pairs, 1885 based on Foata normal form. 584/29819 useless extension candidates. Maximal degree in co-relation 228635. Up to 9429 conditions per place. [2023-11-28 23:59:16,120 INFO L140 encePairwiseOnDemand]: 222/267 looper letters, 1360 selfloop transitions, 516 changer transitions 0/2148 dead transitions. [2023-11-28 23:59:16,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 718 places, 2148 transitions, 53242 flow [2023-11-28 23:59:16,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-28 23:59:16,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-28 23:59:16,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3009 transitions. [2023-11-28 23:59:16,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7043539325842697 [2023-11-28 23:59:16,123 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3009 transitions. [2023-11-28 23:59:16,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3009 transitions. [2023-11-28 23:59:16,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:59:16,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3009 transitions. [2023-11-28 23:59:16,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 188.0625) internal successors, (3009), 16 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:59:16,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:59:16,128 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:59:16,128 INFO L175 Difference]: Start difference. First operand has 703 places, 1962 transitions, 46114 flow. Second operand 16 states and 3009 transitions. [2023-11-28 23:59:16,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 718 places, 2148 transitions, 53242 flow [2023-11-28 23:59:25,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 713 places, 2148 transitions, 52550 flow, removed 273 selfloop flow, removed 5 redundant places. [2023-11-28 23:59:25,758 INFO L231 Difference]: Finished difference. Result has 718 places, 2005 transitions, 49137 flow [2023-11-28 23:59:25,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=45435, PETRI_DIFFERENCE_MINUEND_PLACES=698, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=474, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=49137, PETRI_PLACES=718, PETRI_TRANSITIONS=2005} [2023-11-28 23:59:25,761 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 454 predicate places. [2023-11-28 23:59:25,761 INFO L495 AbstractCegarLoop]: Abstraction has has 718 places, 2005 transitions, 49137 flow [2023-11-28 23:59:25,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:59:25,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:59:25,762 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:59:25,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-28 23:59:25,762 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:59:25,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:59:25,763 INFO L85 PathProgramCache]: Analyzing trace with hash -354015307, now seen corresponding path program 18 times [2023-11-28 23:59:25,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:59:25,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394919298] [2023-11-28 23:59:25,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:59:25,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:59:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:27,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-28 23:59:27,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:59:27,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394919298] [2023-11-28 23:59:27,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394919298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:59:27,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:59:27,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:59:27,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812784148] [2023-11-28 23:59:27,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:59:27,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:59:27,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:59:27,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:59:27,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:59:28,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-28 23:59:28,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 718 places, 2005 transitions, 49137 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:59:28,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:59:28,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-28 23:59:28,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:59:58,364 INFO L124 PetriNetUnfolderBase]: 10611/30071 cut-off events. [2023-11-28 23:59:58,364 INFO L125 PetriNetUnfolderBase]: For 961711/963125 co-relation queries the response was YES. [2023-11-28 23:59:58,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235778 conditions, 30071 events. 10611/30071 cut-off events. For 961711/963125 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 268070 event pairs, 1881 based on Foata normal form. 592/29881 useless extension candidates. Maximal degree in co-relation 235040. Up to 9291 conditions per place. [2023-11-28 23:59:59,119 INFO L140 encePairwiseOnDemand]: 222/267 looper letters, 1407 selfloop transitions, 541 changer transitions 0/2220 dead transitions. [2023-11-28 23:59:59,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 734 places, 2220 transitions, 56975 flow [2023-11-28 23:59:59,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 23:59:59,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-28 23:59:59,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3194 transitions. [2023-11-28 23:59:59,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7036792244987883 [2023-11-28 23:59:59,124 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3194 transitions. [2023-11-28 23:59:59,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3194 transitions. [2023-11-28 23:59:59,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:59:59,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3194 transitions. [2023-11-28 23:59:59,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 187.88235294117646) internal successors, (3194), 17 states have internal predecessors, (3194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:59:59,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:59:59,136 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:59:59,136 INFO L175 Difference]: Start difference. First operand has 718 places, 2005 transitions, 49137 flow. Second operand 17 states and 3194 transitions. [2023-11-28 23:59:59,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 734 places, 2220 transitions, 56975 flow [2023-11-29 00:00:09,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 726 places, 2220 transitions, 56536 flow, removed 131 selfloop flow, removed 8 redundant places. [2023-11-29 00:00:09,424 INFO L231 Difference]: Finished difference. Result has 734 places, 2057 transitions, 52834 flow [2023-11-29 00:00:09,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=48708, PETRI_DIFFERENCE_MINUEND_PLACES=710, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2005, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=490, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=52834, PETRI_PLACES=734, PETRI_TRANSITIONS=2057} [2023-11-29 00:00:09,426 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 470 predicate places. [2023-11-29 00:00:09,426 INFO L495 AbstractCegarLoop]: Abstraction has has 734 places, 2057 transitions, 52834 flow [2023-11-29 00:00:09,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states 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 00:00:09,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:00:09,426 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:00:09,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 00:00:09,426 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 00:00:09,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:00:09,427 INFO L85 PathProgramCache]: Analyzing trace with hash 146776507, now seen corresponding path program 19 times [2023-11-29 00:00:09,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:00:09,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292305234] [2023-11-29 00:00:09,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:09,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:00:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:10,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 00:00:10,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:00:10,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292305234] [2023-11-29 00:00:10,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292305234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:00:10,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:00:10,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 00:00:10,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273394218] [2023-11-29 00:00:10,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:00:10,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:00:10,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:00:10,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:00:10,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:00:11,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 00:00:11,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 734 places, 2057 transitions, 52834 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states 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 00:00:11,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:00:11,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 00:00:11,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:00:44,121 INFO L124 PetriNetUnfolderBase]: 10715/30389 cut-off events. [2023-11-29 00:00:44,121 INFO L125 PetriNetUnfolderBase]: For 1075142/1076684 co-relation queries the response was YES. [2023-11-29 00:00:44,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246506 conditions, 30389 events. 10715/30389 cut-off events. For 1075142/1076684 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 271453 event pairs, 2165 based on Foata normal form. 519/30086 useless extension candidates. Maximal degree in co-relation 244660. Up to 15785 conditions per place. [2023-11-29 00:00:44,899 INFO L140 encePairwiseOnDemand]: 224/267 looper letters, 1423 selfloop transitions, 461 changer transitions 0/2156 dead transitions. [2023-11-29 00:00:44,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 746 places, 2156 transitions, 59151 flow [2023-11-29 00:00:44,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:00:44,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 00:00:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2420 transitions. [2023-11-29 00:00:44,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6972054163065399 [2023-11-29 00:00:44,902 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2420 transitions. [2023-11-29 00:00:44,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2420 transitions. [2023-11-29 00:00:44,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:00:44,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2420 transitions. [2023-11-29 00:00:44,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 186.15384615384616) internal successors, (2420), 13 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 00:00:44,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states 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 00:00:44,907 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states 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 00:00:44,907 INFO L175 Difference]: Start difference. First operand has 734 places, 2057 transitions, 52834 flow. Second operand 13 states and 2420 transitions. [2023-11-29 00:00:44,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 746 places, 2156 transitions, 59151 flow [2023-11-29 00:00:56,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 741 places, 2156 transitions, 58598 flow, removed 230 selfloop flow, removed 5 redundant places. [2023-11-29 00:00:56,184 INFO L231 Difference]: Finished difference. Result has 750 places, 2103 transitions, 56112 flow [2023-11-29 00:00:56,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=52285, PETRI_DIFFERENCE_MINUEND_PLACES=729, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=418, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=56112, PETRI_PLACES=750, PETRI_TRANSITIONS=2103} [2023-11-29 00:00:56,186 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 486 predicate places. [2023-11-29 00:00:56,186 INFO L495 AbstractCegarLoop]: Abstraction has has 750 places, 2103 transitions, 56112 flow [2023-11-29 00:00:56,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states 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 00:00:56,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:00:56,187 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:00:56,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 00:00:56,187 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 00:00:56,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:00:56,187 INFO L85 PathProgramCache]: Analyzing trace with hash -893181549, now seen corresponding path program 20 times [2023-11-29 00:00:56,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:00:56,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128520374] [2023-11-29 00:00:56,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:56,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:00:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:57,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 00:00:57,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:00:57,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128520374] [2023-11-29 00:00:57,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128520374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:00:57,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:00:57,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 00:00:57,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436311854] [2023-11-29 00:00:57,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:00:57,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:00:57,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:00:57,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:00:57,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:00:58,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 00:00:58,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 750 places, 2103 transitions, 56112 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states 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 00:00:58,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:00:58,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 00:00:58,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:01:30,877 INFO L124 PetriNetUnfolderBase]: 11731/32821 cut-off events. [2023-11-29 00:01:30,877 INFO L125 PetriNetUnfolderBase]: For 1344749/1346377 co-relation queries the response was YES. [2023-11-29 00:01:31,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277451 conditions, 32821 events. 11731/32821 cut-off events. For 1344749/1346377 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 298032 event pairs, 2239 based on Foata normal form. 563/32550 useless extension candidates. Maximal degree in co-relation 275143. Up to 15811 conditions per place. [2023-11-29 00:01:31,646 INFO L140 encePairwiseOnDemand]: 224/267 looper letters, 1618 selfloop transitions, 542 changer transitions 0/2432 dead transitions. [2023-11-29 00:01:31,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 769 places, 2432 transitions, 68375 flow [2023-11-29 00:01:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:01:31,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 00:01:31,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3684 transitions. [2023-11-29 00:01:31,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6898876404494382 [2023-11-29 00:01:31,649 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3684 transitions. [2023-11-29 00:01:31,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3684 transitions. [2023-11-29 00:01:31,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:01:31,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3684 transitions. [2023-11-29 00:01:31,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 184.2) internal successors, (3684), 20 states have internal predecessors, (3684), 0 states have call successors, (0), 0 states 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 00:01:31,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states 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 00:01:31,656 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states 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 00:01:31,656 INFO L175 Difference]: Start difference. First operand has 750 places, 2103 transitions, 56112 flow. Second operand 20 states and 3684 transitions. [2023-11-29 00:01:31,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 769 places, 2432 transitions, 68375 flow [2023-11-29 00:01:44,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 767 places, 2432 transitions, 67731 flow, removed 304 selfloop flow, removed 2 redundant places. [2023-11-29 00:01:44,114 INFO L231 Difference]: Finished difference. Result has 781 places, 2207 transitions, 61916 flow [2023-11-29 00:01:44,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=55806, PETRI_DIFFERENCE_MINUEND_PLACES=748, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=442, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=61916, PETRI_PLACES=781, PETRI_TRANSITIONS=2207} [2023-11-29 00:01:44,116 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 517 predicate places. [2023-11-29 00:01:44,116 INFO L495 AbstractCegarLoop]: Abstraction has has 781 places, 2207 transitions, 61916 flow [2023-11-29 00:01:44,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states 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 00:01:44,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:01:44,116 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:01:44,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 00:01:44,116 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 00:01:44,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:01:44,117 INFO L85 PathProgramCache]: Analyzing trace with hash -53995821, now seen corresponding path program 2 times [2023-11-29 00:01:44,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:01:44,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945526481] [2023-11-29 00:01:44,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:01:44,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:01:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:45,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 00:01:45,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:01:45,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945526481] [2023-11-29 00:01:45,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945526481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:01:45,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:01:45,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 00:01:45,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322513870] [2023-11-29 00:01:45,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:01:45,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:01:45,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:01:45,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:01:45,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:01:46,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 00:01:46,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 781 places, 2207 transitions, 61916 flow. Second operand has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states 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 00:01:46,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:01:46,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 00:01:46,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:02:21,228 INFO L124 PetriNetUnfolderBase]: 11536/33042 cut-off events. [2023-11-29 00:02:21,228 INFO L125 PetriNetUnfolderBase]: For 1402967/1405819 co-relation queries the response was YES. [2023-11-29 00:02:22,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280807 conditions, 33042 events. 11536/33042 cut-off events. For 1402967/1405819 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 304126 event pairs, 2213 based on Foata normal form. 453/32659 useless extension candidates. Maximal degree in co-relation 280000. Up to 14965 conditions per place. [2023-11-29 00:02:22,171 INFO L140 encePairwiseOnDemand]: 214/267 looper letters, 1670 selfloop transitions, 248 changer transitions 0/2490 dead transitions. [2023-11-29 00:02:22,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 800 places, 2490 transitions, 70176 flow [2023-11-29 00:02:22,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:02:22,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 00:02:22,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3689 transitions. [2023-11-29 00:02:22,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6908239700374532 [2023-11-29 00:02:22,174 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3689 transitions. [2023-11-29 00:02:22,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3689 transitions. [2023-11-29 00:02:22,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:02:22,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3689 transitions. [2023-11-29 00:02:22,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 184.45) internal successors, (3689), 20 states have internal predecessors, (3689), 0 states have call successors, (0), 0 states 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 00:02:22,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states 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 00:02:22,184 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states 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 00:02:22,184 INFO L175 Difference]: Start difference. First operand has 781 places, 2207 transitions, 61916 flow. Second operand 20 states and 3689 transitions. [2023-11-29 00:02:22,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 800 places, 2490 transitions, 70176 flow [2023-11-29 00:02:37,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 797 places, 2490 transitions, 69225 flow, removed 450 selfloop flow, removed 3 redundant places. [2023-11-29 00:02:37,543 INFO L231 Difference]: Finished difference. Result has 808 places, 2319 transitions, 64225 flow [2023-11-29 00:02:37,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=60994, PETRI_DIFFERENCE_MINUEND_PLACES=778, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=64225, PETRI_PLACES=808, PETRI_TRANSITIONS=2319} [2023-11-29 00:02:37,545 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 544 predicate places. [2023-11-29 00:02:37,545 INFO L495 AbstractCegarLoop]: Abstraction has has 808 places, 2319 transitions, 64225 flow [2023-11-29 00:02:37,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states 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 00:02:37,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:02:37,546 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:02:37,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 00:02:37,546 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 00:02:37,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:02:37,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1722913221, now seen corresponding path program 3 times [2023-11-29 00:02:37,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:02:37,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676044334] [2023-11-29 00:02:37,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:02:37,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:02:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:39,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 00:02:39,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:02:39,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676044334] [2023-11-29 00:02:39,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676044334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:02:39,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:02:39,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 00:02:39,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719953192] [2023-11-29 00:02:39,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:02:39,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:02:39,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:02:39,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:02:39,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:02:40,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 00:02:40,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 808 places, 2319 transitions, 64225 flow. Second operand has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states 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 00:02:40,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:02:40,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 00:02:40,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:03:17,742 INFO L124 PetriNetUnfolderBase]: 11504/32968 cut-off events. [2023-11-29 00:03:17,742 INFO L125 PetriNetUnfolderBase]: For 1388155/1390895 co-relation queries the response was YES. [2023-11-29 00:03:18,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283956 conditions, 32968 events. 11504/32968 cut-off events. For 1388155/1390895 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 303703 event pairs, 2221 based on Foata normal form. 383/32519 useless extension candidates. Maximal degree in co-relation 283098. Up to 14879 conditions per place. [2023-11-29 00:03:18,694 INFO L140 encePairwiseOnDemand]: 214/267 looper letters, 1709 selfloop transitions, 288 changer transitions 0/2569 dead transitions. [2023-11-29 00:03:18,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 827 places, 2569 transitions, 72645 flow [2023-11-29 00:03:18,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:03:18,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 00:03:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3689 transitions. [2023-11-29 00:03:18,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6908239700374532 [2023-11-29 00:03:18,697 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3689 transitions. [2023-11-29 00:03:18,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3689 transitions. [2023-11-29 00:03:18,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:03:18,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3689 transitions. [2023-11-29 00:03:18,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 184.45) internal successors, (3689), 20 states have internal predecessors, (3689), 0 states have call successors, (0), 0 states 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 00:03:18,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states 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 00:03:18,703 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states 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 00:03:18,703 INFO L175 Difference]: Start difference. First operand has 808 places, 2319 transitions, 64225 flow. Second operand 20 states and 3689 transitions. [2023-11-29 00:03:18,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 827 places, 2569 transitions, 72645 flow [2023-11-29 00:03:34,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 821 places, 2569 transitions, 72372 flow, removed 100 selfloop flow, removed 6 redundant places. [2023-11-29 00:03:34,894 INFO L231 Difference]: Finished difference. Result has 832 places, 2392 transitions, 66727 flow [2023-11-29 00:03:34,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=63962, PETRI_DIFFERENCE_MINUEND_PLACES=802, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2045, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=66727, PETRI_PLACES=832, PETRI_TRANSITIONS=2392} [2023-11-29 00:03:34,896 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 568 predicate places. [2023-11-29 00:03:34,896 INFO L495 AbstractCegarLoop]: Abstraction has has 832 places, 2392 transitions, 66727 flow [2023-11-29 00:03:34,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states 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 00:03:34,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:03:34,897 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:34,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 00:03:34,897 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 00:03:34,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:34,898 INFO L85 PathProgramCache]: Analyzing trace with hash 563836775, now seen corresponding path program 4 times [2023-11-29 00:03:34,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:34,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510663246] [2023-11-29 00:03:34,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:34,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:36,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 00:03:36,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:03:36,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510663246] [2023-11-29 00:03:36,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510663246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:03:36,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:03:36,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 00:03:36,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378711013] [2023-11-29 00:03:36,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:03:36,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:03:36,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:03:36,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:03:36,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:03:37,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 00:03:37,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 832 places, 2392 transitions, 66727 flow. Second operand has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states 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 00:03:37,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:03:37,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 00:03:37,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:04:19,142 INFO L124 PetriNetUnfolderBase]: 11682/33436 cut-off events. [2023-11-29 00:04:19,142 INFO L125 PetriNetUnfolderBase]: For 1436822/1439634 co-relation queries the response was YES. [2023-11-29 00:04:20,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294703 conditions, 33436 events. 11682/33436 cut-off events. For 1436822/1439634 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 308941 event pairs, 2223 based on Foata normal form. 403/33009 useless extension candidates. Maximal degree in co-relation 292250. Up to 15893 conditions per place. [2023-11-29 00:04:20,218 INFO L140 encePairwiseOnDemand]: 214/267 looper letters, 1741 selfloop transitions, 271 changer transitions 0/2584 dead transitions. [2023-11-29 00:04:20,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 849 places, 2584 transitions, 74617 flow [2023-11-29 00:04:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 00:04:20,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 00:04:20,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3328 transitions. [2023-11-29 00:04:20,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6924677486475239 [2023-11-29 00:04:20,222 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3328 transitions. [2023-11-29 00:04:20,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3328 transitions. [2023-11-29 00:04:20,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:04:20,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3328 transitions. [2023-11-29 00:04:20,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 184.88888888888889) internal successors, (3328), 18 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states 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 00:04:20,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states 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 00:04:20,229 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states 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 00:04:20,229 INFO L175 Difference]: Start difference. First operand has 832 places, 2392 transitions, 66727 flow. Second operand 18 states and 3328 transitions. [2023-11-29 00:04:20,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 849 places, 2584 transitions, 74617 flow [2023-11-29 00:04:36,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 844 places, 2584 transitions, 74276 flow, removed 146 selfloop flow, removed 5 redundant places. [2023-11-29 00:04:36,550 INFO L231 Difference]: Finished difference. Result has 855 places, 2464 transitions, 69391 flow [2023-11-29 00:04:36,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=66386, PETRI_DIFFERENCE_MINUEND_PLACES=827, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=69391, PETRI_PLACES=855, PETRI_TRANSITIONS=2464} [2023-11-29 00:04:36,552 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 591 predicate places. [2023-11-29 00:04:36,552 INFO L495 AbstractCegarLoop]: Abstraction has has 855 places, 2464 transitions, 69391 flow [2023-11-29 00:04:36,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states 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 00:04:36,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:04:36,552 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:36,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 00:04:36,553 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 00:04:36,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:04:36,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1984522297, now seen corresponding path program 21 times [2023-11-29 00:04:36,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:04:36,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323594302] [2023-11-29 00:04:36,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:04:36,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:04:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:37,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 00:04:37,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:04:37,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323594302] [2023-11-29 00:04:37,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323594302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:04:37,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:04:37,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 00:04:37,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266808557] [2023-11-29 00:04:37,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:04:37,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:04:37,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:04:37,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:04:37,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:04:39,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 00:04:39,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 855 places, 2464 transitions, 69391 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states 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 00:04:39,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:04:39,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 00:04:39,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand