./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu --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 bf81f7b3bd1ceac2bf46c7c37f69effc0af9de17b18c7565156301fb49a6164e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:41:09,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:41:09,444 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:41:09,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:41:09,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:41:09,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:41:09,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:41:09,512 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:41:09,513 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:41:09,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:41:09,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:41:09,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:41:09,521 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:41:09,523 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:41:09,524 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:41:09,524 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:41:09,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:41:09,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:41:09,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:41:09,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:41:09,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:41:09,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:41:09,528 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:41:09,529 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:41:09,529 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:41:09,530 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:41:09,530 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:41:09,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:41:09,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:41:09,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:41:09,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:09,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:41:09,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:41:09,535 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:41:09,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:41:09,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:41:09,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:41:09,537 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:41:09,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:41:09,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:41:09,538 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:41:09,538 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_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf81f7b3bd1ceac2bf46c7c37f69effc0af9de17b18c7565156301fb49a6164e [2023-11-19 07:41:09,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:41:09,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:41:09,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:41:09,935 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:41:09,937 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:41:09,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2023-11-19 07:41:13,322 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:41:13,605 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:41:13,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2023-11-19 07:41:13,616 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/data/384a27598/c6218ce99ad4417fa99b633daf714e21/FLAG6bb38635a [2023-11-19 07:41:13,637 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/data/384a27598/c6218ce99ad4417fa99b633daf714e21 [2023-11-19 07:41:13,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:41:13,642 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:41:13,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:13,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:41:13,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:41:13,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:13" (1/1) ... [2023-11-19 07:41:13,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6481647c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:13, skipping insertion in model container [2023-11-19 07:41:13,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:13" (1/1) ... [2023-11-19 07:41:13,686 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:41:14,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:14,057 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:41:14,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:14,153 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:41:14,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14 WrapperNode [2023-11-19 07:41:14,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:14,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:14,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:41:14,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:41:14,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (1/1) ... [2023-11-19 07:41:14,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (1/1) ... [2023-11-19 07:41:14,219 INFO L138 Inliner]: procedures = 24, calls = 36, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 213 [2023-11-19 07:41:14,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:14,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:41:14,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:41:14,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:41:14,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (1/1) ... [2023-11-19 07:41:14,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (1/1) ... [2023-11-19 07:41:14,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (1/1) ... [2023-11-19 07:41:14,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (1/1) ... [2023-11-19 07:41:14,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (1/1) ... [2023-11-19 07:41:14,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (1/1) ... [2023-11-19 07:41:14,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (1/1) ... [2023-11-19 07:41:14,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (1/1) ... [2023-11-19 07:41:14,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:41:14,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:41:14,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:41:14,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:41:14,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (1/1) ... [2023-11-19 07:41:14,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:14,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:14,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:14,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65d15597-f794-4d58-8ab5-eb939e873250/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:41:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:41:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:41:14,383 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:41:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:41:14,383 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:41:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:41:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:41:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:41:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:41:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:41:14,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:41:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:41:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:41:14,387 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:41:14,532 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:41:14,539 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:41:15,385 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:41:15,401 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:41:15,401 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:41:15,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:15 BoogieIcfgContainer [2023-11-19 07:41:15,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:41:15,410 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:41:15,411 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:41:15,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:41:15,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:13" (1/3) ... [2023-11-19 07:41:15,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bbaf7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:15, skipping insertion in model container [2023-11-19 07:41:15,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:14" (2/3) ... [2023-11-19 07:41:15,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bbaf7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:15, skipping insertion in model container [2023-11-19 07:41:15,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:15" (3/3) ... [2023-11-19 07:41:15,418 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2023-11-19 07:41:15,429 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:41:15,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:41:15,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2023-11-19 07:41:15,441 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:41:15,606 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:41:15,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 476 places, 495 transitions, 1004 flow [2023-11-19 07:41:16,034 INFO L124 PetriNetUnfolderBase]: 26/493 cut-off events. [2023-11-19 07:41:16,034 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:41:16,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 493 events. 26/493 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1066 event pairs, 0 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 292. Up to 3 conditions per place. [2023-11-19 07:41:16,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 476 places, 495 transitions, 1004 flow [2023-11-19 07:41:16,067 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 452 places, 469 transitions, 950 flow [2023-11-19 07:41:16,073 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:41:16,089 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 469 transitions, 950 flow [2023-11-19 07:41:16,093 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 469 transitions, 950 flow [2023-11-19 07:41:16,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 452 places, 469 transitions, 950 flow [2023-11-19 07:41:16,208 INFO L124 PetriNetUnfolderBase]: 24/469 cut-off events. [2023-11-19 07:41:16,208 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:41:16,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 469 events. 24/469 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1052 event pairs, 0 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 292. Up to 3 conditions per place. [2023-11-19 07:41:16,237 INFO L119 LiptonReduction]: Number of co-enabled transitions 32996 [2023-11-19 07:41:27,673 INFO L134 LiptonReduction]: Checked pairs total: 238453 [2023-11-19 07:41:27,673 INFO L136 LiptonReduction]: Total number of compositions: 412 [2023-11-19 07:41:27,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:41:27,696 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;@33f33b7a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:41:27,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2023-11-19 07:41:27,699 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:41:27,699 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:41:27,699 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:41:27,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:27,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:41:27,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:27,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:27,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1755, now seen corresponding path program 1 times [2023-11-19 07:41:27,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:27,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577145826] [2023-11-19 07:41:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:27,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:27,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:27,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:27,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577145826] [2023-11-19 07:41:27,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577145826] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:27,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:27,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:41:27,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750797527] [2023-11-19 07:41:27,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:27,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:41:27,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:27,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:41:27,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:41:27,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 907 [2023-11-19 07:41:27,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 180 transitions, 372 flow. Second operand has 2 states, 2 states have (on average 479.5) internal successors, (959), 2 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:27,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:27,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 907 [2023-11-19 07:41:27,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:28,441 INFO L124 PetriNetUnfolderBase]: 875/3292 cut-off events. [2023-11-19 07:41:28,441 INFO L125 PetriNetUnfolderBase]: For 52/74 co-relation queries the response was YES. [2023-11-19 07:41:28,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4658 conditions, 3292 events. 875/3292 cut-off events. For 52/74 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 27317 event pairs, 573 based on Foata normal form. 228/2809 useless extension candidates. Maximal degree in co-relation 4384. Up to 1320 conditions per place. [2023-11-19 07:41:28,474 INFO L140 encePairwiseOnDemand]: 883/907 looper letters, 47 selfloop transitions, 0 changer transitions 1/156 dead transitions. [2023-11-19 07:41:28,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 420 flow [2023-11-19 07:41:28,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:41:28,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:41:28,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1030 transitions. [2023-11-19 07:41:28,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5678059536934951 [2023-11-19 07:41:28,502 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1030 transitions. [2023-11-19 07:41:28,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1030 transitions. [2023-11-19 07:41:28,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:28,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1030 transitions. [2023-11-19 07:41:28,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 515.0) internal successors, (1030), 2 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:28,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 907.0) internal successors, (2721), 3 states have internal predecessors, (2721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:28,535 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 907.0) internal successors, (2721), 3 states have internal predecessors, (2721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:28,538 INFO L175 Difference]: Start difference. First operand has 173 places, 180 transitions, 372 flow. Second operand 2 states and 1030 transitions. [2023-11-19 07:41:28,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 420 flow [2023-11-19 07:41:28,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 156 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:41:28,550 INFO L231 Difference]: Finished difference. Result has 148 places, 155 transitions, 313 flow [2023-11-19 07:41:28,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=313, PETRI_PLACES=148, PETRI_TRANSITIONS=155} [2023-11-19 07:41:28,557 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -25 predicate places. [2023-11-19 07:41:28,558 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 155 transitions, 313 flow [2023-11-19 07:41:28,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 479.5) internal successors, (959), 2 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:28,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:28,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:41:28,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:41:28,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:28,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:28,570 INFO L85 PathProgramCache]: Analyzing trace with hash 760410654, now seen corresponding path program 1 times [2023-11-19 07:41:28,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:28,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35582453] [2023-11-19 07:41:28,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:28,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:28,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:28,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:28,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35582453] [2023-11-19 07:41:28,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35582453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:28,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:28,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:28,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404860443] [2023-11-19 07:41:28,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:28,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:28,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:28,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:28,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:28,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 907 [2023-11-19 07:41:28,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 155 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 468.0) internal successors, (1404), 3 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:28,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:28,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 907 [2023-11-19 07:41:28,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:29,427 INFO L124 PetriNetUnfolderBase]: 1159/4040 cut-off events. [2023-11-19 07:41:29,428 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-19 07:41:29,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5827 conditions, 4040 events. 1159/4040 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 33850 event pairs, 449 based on Foata normal form. 0/3244 useless extension candidates. Maximal degree in co-relation 5824. Up to 1756 conditions per place. [2023-11-19 07:41:29,469 INFO L140 encePairwiseOnDemand]: 901/907 looper letters, 56 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2023-11-19 07:41:29,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 157 transitions, 434 flow [2023-11-19 07:41:29,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:41:29,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1460 transitions. [2023-11-19 07:41:29,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5365674384417494 [2023-11-19 07:41:29,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1460 transitions. [2023-11-19 07:41:29,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1460 transitions. [2023-11-19 07:41:29,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:29,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1460 transitions. [2023-11-19 07:41:29,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.6666666666667) internal successors, (1460), 3 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:29,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:29,510 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:29,510 INFO L175 Difference]: Start difference. First operand has 148 places, 155 transitions, 313 flow. Second operand 3 states and 1460 transitions. [2023-11-19 07:41:29,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 157 transitions, 434 flow [2023-11-19 07:41:29,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 157 transitions, 434 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:41:29,523 INFO L231 Difference]: Finished difference. Result has 146 places, 153 transitions, 319 flow [2023-11-19 07:41:29,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=146, PETRI_TRANSITIONS=153} [2023-11-19 07:41:29,525 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -27 predicate places. [2023-11-19 07:41:29,526 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 153 transitions, 319 flow [2023-11-19 07:41:29,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 468.0) internal successors, (1404), 3 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:29,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:29,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:29,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:41:29,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:29,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:29,538 INFO L85 PathProgramCache]: Analyzing trace with hash 612640451, now seen corresponding path program 1 times [2023-11-19 07:41:29,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:29,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75024827] [2023-11-19 07:41:29,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:29,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:29,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:29,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75024827] [2023-11-19 07:41:29,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75024827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:29,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:29,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:29,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310002115] [2023-11-19 07:41:29,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:29,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:29,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:29,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:29,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:29,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 907 [2023-11-19 07:41:29,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 153 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 468.6666666666667) internal successors, (1406), 3 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:29,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:29,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 907 [2023-11-19 07:41:29,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:30,237 INFO L124 PetriNetUnfolderBase]: 1149/3972 cut-off events. [2023-11-19 07:41:30,238 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-11-19 07:41:30,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5797 conditions, 3972 events. 1149/3972 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 33078 event pairs, 445 based on Foata normal form. 0/3195 useless extension candidates. Maximal degree in co-relation 5793. Up to 1734 conditions per place. [2023-11-19 07:41:30,277 INFO L140 encePairwiseOnDemand]: 901/907 looper letters, 57 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2023-11-19 07:41:30,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 155 transitions, 445 flow [2023-11-19 07:41:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:30,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:41:30,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1460 transitions. [2023-11-19 07:41:30,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5365674384417494 [2023-11-19 07:41:30,284 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1460 transitions. [2023-11-19 07:41:30,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1460 transitions. [2023-11-19 07:41:30,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:30,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1460 transitions. [2023-11-19 07:41:30,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.6666666666667) internal successors, (1460), 3 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:30,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:30,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:30,302 INFO L175 Difference]: Start difference. First operand has 146 places, 153 transitions, 319 flow. Second operand 3 states and 1460 transitions. [2023-11-19 07:41:30,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 155 transitions, 445 flow [2023-11-19 07:41:30,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 155 transitions, 445 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:41:30,307 INFO L231 Difference]: Finished difference. Result has 145 places, 151 transitions, 325 flow [2023-11-19 07:41:30,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=145, PETRI_TRANSITIONS=151} [2023-11-19 07:41:30,309 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -28 predicate places. [2023-11-19 07:41:30,309 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 151 transitions, 325 flow [2023-11-19 07:41:30,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 468.6666666666667) internal successors, (1406), 3 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:30,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:30,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:30,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:41:30,312 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:30,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:30,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1974788373, now seen corresponding path program 1 times [2023-11-19 07:41:30,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:30,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149763933] [2023-11-19 07:41:30,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:30,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:30,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149763933] [2023-11-19 07:41:30,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149763933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:30,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:30,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:30,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902117558] [2023-11-19 07:41:30,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:30,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:30,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:30,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:30,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:30,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 907 [2023-11-19 07:41:30,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 151 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 465.6666666666667) internal successors, (1397), 3 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:30,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:30,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 907 [2023-11-19 07:41:30,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:30,938 INFO L124 PetriNetUnfolderBase]: 1139/3843 cut-off events. [2023-11-19 07:41:30,939 INFO L125 PetriNetUnfolderBase]: For 78/79 co-relation queries the response was YES. [2023-11-19 07:41:30,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5682 conditions, 3843 events. 1139/3843 cut-off events. For 78/79 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 31674 event pairs, 695 based on Foata normal form. 0/3059 useless extension candidates. Maximal degree in co-relation 5677. Up to 1727 conditions per place. [2023-11-19 07:41:30,974 INFO L140 encePairwiseOnDemand]: 902/907 looper letters, 52 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2023-11-19 07:41:30,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 147 transitions, 423 flow [2023-11-19 07:41:30,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:30,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:41:30,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1444 transitions. [2023-11-19 07:41:30,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5306872473355384 [2023-11-19 07:41:30,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1444 transitions. [2023-11-19 07:41:30,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1444 transitions. [2023-11-19 07:41:30,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:30,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1444 transitions. [2023-11-19 07:41:30,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:30,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:30,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:31,000 INFO L175 Difference]: Start difference. First operand has 145 places, 151 transitions, 325 flow. Second operand 3 states and 1444 transitions. [2023-11-19 07:41:31,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 147 transitions, 423 flow [2023-11-19 07:41:31,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 147 transitions, 423 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:41:31,005 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 319 flow [2023-11-19 07:41:31,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2023-11-19 07:41:31,006 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -30 predicate places. [2023-11-19 07:41:31,006 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 319 flow [2023-11-19 07:41:31,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 465.6666666666667) internal successors, (1397), 3 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:31,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:31,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:31,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:41:31,009 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:31,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:31,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1841148147, now seen corresponding path program 1 times [2023-11-19 07:41:31,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:31,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005493703] [2023-11-19 07:41:31,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:31,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:31,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:31,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005493703] [2023-11-19 07:41:31,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005493703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:31,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:31,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:41:31,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411888350] [2023-11-19 07:41:31,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:31,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:31,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:31,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:31,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:32,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 907 [2023-11-19 07:41:32,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 462.8333333333333) internal successors, (2777), 6 states have internal predecessors, (2777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:32,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:32,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 907 [2023-11-19 07:41:32,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:33,522 INFO L124 PetriNetUnfolderBase]: 3111/6552 cut-off events. [2023-11-19 07:41:33,522 INFO L125 PetriNetUnfolderBase]: For 180/181 co-relation queries the response was YES. [2023-11-19 07:41:33,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11193 conditions, 6552 events. 3111/6552 cut-off events. For 180/181 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 49649 event pairs, 253 based on Foata normal form. 0/5075 useless extension candidates. Maximal degree in co-relation 11187. Up to 1586 conditions per place. [2023-11-19 07:41:33,581 INFO L140 encePairwiseOnDemand]: 902/907 looper letters, 201 selfloop transitions, 4 changer transitions 0/298 dead transitions. [2023-11-19 07:41:33,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 298 transitions, 1071 flow [2023-11-19 07:41:33,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:33,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:41:33,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2962 transitions. [2023-11-19 07:41:33,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5442851892686512 [2023-11-19 07:41:33,595 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2962 transitions. [2023-11-19 07:41:33,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2962 transitions. [2023-11-19 07:41:33,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:33,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2962 transitions. [2023-11-19 07:41:33,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 493.6666666666667) internal successors, (2962), 6 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:33,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:33,632 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:33,633 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 319 flow. Second operand 6 states and 2962 transitions. [2023-11-19 07:41:33,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 298 transitions, 1071 flow [2023-11-19 07:41:33,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 298 transitions, 1070 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:41:33,643 INFO L231 Difference]: Finished difference. Result has 146 places, 146 transitions, 324 flow [2023-11-19 07:41:33,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=146, PETRI_TRANSITIONS=146} [2023-11-19 07:41:33,646 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -27 predicate places. [2023-11-19 07:41:33,646 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 146 transitions, 324 flow [2023-11-19 07:41:33,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 462.8333333333333) internal successors, (2777), 6 states have internal predecessors, (2777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:33,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:33,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:33,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:41:33,649 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:33,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:33,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1728790327, now seen corresponding path program 1 times [2023-11-19 07:41:33,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:33,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983964491] [2023-11-19 07:41:33,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:33,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:33,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:33,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983964491] [2023-11-19 07:41:33,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983964491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:33,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:33,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:33,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145529968] [2023-11-19 07:41:33,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:33,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:33,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:33,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:33,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:33,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 907 [2023-11-19 07:41:33,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 146 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 466.3333333333333) internal successors, (1399), 3 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:33,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:33,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 907 [2023-11-19 07:41:33,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:34,281 INFO L124 PetriNetUnfolderBase]: 1139/3718 cut-off events. [2023-11-19 07:41:34,282 INFO L125 PetriNetUnfolderBase]: For 323/332 co-relation queries the response was YES. [2023-11-19 07:41:34,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5865 conditions, 3718 events. 1139/3718 cut-off events. For 323/332 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 30191 event pairs, 695 based on Foata normal form. 0/2983 useless extension candidates. Maximal degree in co-relation 5859. Up to 1725 conditions per place. [2023-11-19 07:41:34,312 INFO L140 encePairwiseOnDemand]: 902/907 looper letters, 52 selfloop transitions, 1 changer transitions 0/142 dead transitions. [2023-11-19 07:41:34,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 142 transitions, 422 flow [2023-11-19 07:41:34,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:34,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:41:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1444 transitions. [2023-11-19 07:41:34,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5306872473355384 [2023-11-19 07:41:34,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1444 transitions. [2023-11-19 07:41:34,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1444 transitions. [2023-11-19 07:41:34,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:34,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1444 transitions. [2023-11-19 07:41:34,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:34,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:34,334 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:34,334 INFO L175 Difference]: Start difference. First operand has 146 places, 146 transitions, 324 flow. Second operand 3 states and 1444 transitions. [2023-11-19 07:41:34,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 142 transitions, 422 flow [2023-11-19 07:41:34,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 142 transitions, 415 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:41:34,340 INFO L231 Difference]: Finished difference. Result has 140 places, 142 transitions, 311 flow [2023-11-19 07:41:34,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=140, PETRI_TRANSITIONS=142} [2023-11-19 07:41:34,342 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -33 predicate places. [2023-11-19 07:41:34,343 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 142 transitions, 311 flow [2023-11-19 07:41:34,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 466.3333333333333) internal successors, (1399), 3 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:34,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:34,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:34,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:41:34,345 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:34,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:34,346 INFO L85 PathProgramCache]: Analyzing trace with hash 604358858, now seen corresponding path program 1 times [2023-11-19 07:41:34,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:34,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977701403] [2023-11-19 07:41:34,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:34,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:34,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:34,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977701403] [2023-11-19 07:41:34,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977701403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:34,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:34,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:41:34,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579135109] [2023-11-19 07:41:34,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:34,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:34,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:34,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:34,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:34,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 907 [2023-11-19 07:41:34,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 142 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 473.6666666666667) internal successors, (1421), 3 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:34,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:34,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 907 [2023-11-19 07:41:34,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:34,891 INFO L124 PetriNetUnfolderBase]: 973/3445 cut-off events. [2023-11-19 07:41:34,891 INFO L125 PetriNetUnfolderBase]: For 68/69 co-relation queries the response was YES. [2023-11-19 07:41:34,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5044 conditions, 3445 events. 973/3445 cut-off events. For 68/69 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 28036 event pairs, 523 based on Foata normal form. 0/2757 useless extension candidates. Maximal degree in co-relation 5038. Up to 1374 conditions per place. [2023-11-19 07:41:34,919 INFO L140 encePairwiseOnDemand]: 904/907 looper letters, 71 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2023-11-19 07:41:34,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 166 transitions, 508 flow [2023-11-19 07:41:34,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:34,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:41:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1485 transitions. [2023-11-19 07:41:34,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.545755237045204 [2023-11-19 07:41:34,926 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1485 transitions. [2023-11-19 07:41:34,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1485 transitions. [2023-11-19 07:41:34,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:34,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1485 transitions. [2023-11-19 07:41:34,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.0) internal successors, (1485), 3 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:34,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:34,940 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:34,940 INFO L175 Difference]: Start difference. First operand has 140 places, 142 transitions, 311 flow. Second operand 3 states and 1485 transitions. [2023-11-19 07:41:34,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 166 transitions, 508 flow [2023-11-19 07:41:34,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 166 transitions, 507 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:41:34,945 INFO L231 Difference]: Finished difference. Result has 142 places, 143 transitions, 322 flow [2023-11-19 07:41:34,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=142, PETRI_TRANSITIONS=143} [2023-11-19 07:41:34,946 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -31 predicate places. [2023-11-19 07:41:34,946 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 143 transitions, 322 flow [2023-11-19 07:41:34,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.6666666666667) internal successors, (1421), 3 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:34,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:34,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:34,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:41:34,948 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:34,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:34,949 INFO L85 PathProgramCache]: Analyzing trace with hash -784511863, now seen corresponding path program 1 times [2023-11-19 07:41:34,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:34,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972283742] [2023-11-19 07:41:34,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:34,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:34,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:34,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972283742] [2023-11-19 07:41:34,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972283742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:34,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:34,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:41:34,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738459790] [2023-11-19 07:41:34,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:34,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:34,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:34,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:34,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:34,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 907 [2023-11-19 07:41:34,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 143 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 474.3333333333333) internal successors, (1423), 3 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:34,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:34,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 907 [2023-11-19 07:41:34,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:35,512 INFO L124 PetriNetUnfolderBase]: 1024/3567 cut-off events. [2023-11-19 07:41:35,513 INFO L125 PetriNetUnfolderBase]: For 221/228 co-relation queries the response was YES. [2023-11-19 07:41:35,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5429 conditions, 3567 events. 1024/3567 cut-off events. For 221/228 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 28907 event pairs, 569 based on Foata normal form. 0/2903 useless extension candidates. Maximal degree in co-relation 5422. Up to 1466 conditions per place. [2023-11-19 07:41:35,540 INFO L140 encePairwiseOnDemand]: 904/907 looper letters, 69 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2023-11-19 07:41:35,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 164 transitions, 519 flow [2023-11-19 07:41:35,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:41:35,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1481 transitions. [2023-11-19 07:41:35,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5442851892686512 [2023-11-19 07:41:35,547 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1481 transitions. [2023-11-19 07:41:35,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1481 transitions. [2023-11-19 07:41:35,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:35,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1481 transitions. [2023-11-19 07:41:35,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.6666666666667) internal successors, (1481), 3 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:35,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:35,558 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:35,559 INFO L175 Difference]: Start difference. First operand has 142 places, 143 transitions, 322 flow. Second operand 3 states and 1481 transitions. [2023-11-19 07:41:35,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 164 transitions, 519 flow [2023-11-19 07:41:35,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 164 transitions, 515 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:41:35,565 INFO L231 Difference]: Finished difference. Result has 144 places, 144 transitions, 332 flow [2023-11-19 07:41:35,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=144, PETRI_TRANSITIONS=144} [2023-11-19 07:41:35,568 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -29 predicate places. [2023-11-19 07:41:35,568 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 144 transitions, 332 flow [2023-11-19 07:41:35,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 474.3333333333333) internal successors, (1423), 3 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:35,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:35,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:35,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:41:35,569 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:35,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:35,570 INFO L85 PathProgramCache]: Analyzing trace with hash 955930030, now seen corresponding path program 1 times [2023-11-19 07:41:35,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:35,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256879445] [2023-11-19 07:41:35,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:35,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:35,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:35,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256879445] [2023-11-19 07:41:35,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256879445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:35,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:35,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:35,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359872338] [2023-11-19 07:41:35,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:35,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:35,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:35,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:35,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:35,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 907 [2023-11-19 07:41:35,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 144 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:35,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:35,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 907 [2023-11-19 07:41:35,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:36,489 INFO L124 PetriNetUnfolderBase]: 1895/5228 cut-off events. [2023-11-19 07:41:36,490 INFO L125 PetriNetUnfolderBase]: For 521/522 co-relation queries the response was YES. [2023-11-19 07:41:36,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8872 conditions, 5228 events. 1895/5228 cut-off events. For 521/522 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 42484 event pairs, 391 based on Foata normal form. 0/4434 useless extension candidates. Maximal degree in co-relation 8864. Up to 2058 conditions per place. [2023-11-19 07:41:36,546 INFO L140 encePairwiseOnDemand]: 901/907 looper letters, 88 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2023-11-19 07:41:36,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 173 transitions, 594 flow [2023-11-19 07:41:36,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:41:36,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1486 transitions. [2023-11-19 07:41:36,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5461227489893421 [2023-11-19 07:41:36,552 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1486 transitions. [2023-11-19 07:41:36,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1486 transitions. [2023-11-19 07:41:36,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:36,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1486 transitions. [2023-11-19 07:41:36,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:36,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:36,564 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:36,565 INFO L175 Difference]: Start difference. First operand has 144 places, 144 transitions, 332 flow. Second operand 3 states and 1486 transitions. [2023-11-19 07:41:36,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 173 transitions, 594 flow [2023-11-19 07:41:36,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 173 transitions, 590 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:41:36,572 INFO L231 Difference]: Finished difference. Result has 142 places, 142 transitions, 338 flow [2023-11-19 07:41:36,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=142, PETRI_TRANSITIONS=142} [2023-11-19 07:41:36,573 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -31 predicate places. [2023-11-19 07:41:36,573 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 338 flow [2023-11-19 07:41:36,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:36,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:36,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:36,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:41:36,574 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:36,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:36,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1991741424, now seen corresponding path program 1 times [2023-11-19 07:41:36,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:36,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633773725] [2023-11-19 07:41:36,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:36,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:36,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:36,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633773725] [2023-11-19 07:41:36,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633773725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:36,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:36,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:36,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943984335] [2023-11-19 07:41:36,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:36,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:36,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:36,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:36,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:36,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 907 [2023-11-19 07:41:36,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 142 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 470.0) internal successors, (1410), 3 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:36,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:36,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 907 [2023-11-19 07:41:36,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:37,331 INFO L124 PetriNetUnfolderBase]: 1892/5106 cut-off events. [2023-11-19 07:41:37,331 INFO L125 PetriNetUnfolderBase]: For 555/562 co-relation queries the response was YES. [2023-11-19 07:41:37,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8835 conditions, 5106 events. 1892/5106 cut-off events. For 555/562 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 40845 event pairs, 375 based on Foata normal form. 0/4487 useless extension candidates. Maximal degree in co-relation 8827. Up to 2095 conditions per place. [2023-11-19 07:41:37,375 INFO L140 encePairwiseOnDemand]: 901/907 looper letters, 87 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2023-11-19 07:41:37,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 170 transitions, 597 flow [2023-11-19 07:41:37,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:37,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:41:37,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1484 transitions. [2023-11-19 07:41:37,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5453877251010658 [2023-11-19 07:41:37,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1484 transitions. [2023-11-19 07:41:37,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1484 transitions. [2023-11-19 07:41:37,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:37,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1484 transitions. [2023-11-19 07:41:37,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.6666666666667) internal successors, (1484), 3 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:37,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:37,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 907.0) internal successors, (3628), 4 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:37,394 INFO L175 Difference]: Start difference. First operand has 142 places, 142 transitions, 338 flow. Second operand 3 states and 1484 transitions. [2023-11-19 07:41:37,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 170 transitions, 597 flow [2023-11-19 07:41:37,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 170 transitions, 597 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:41:37,402 INFO L231 Difference]: Finished difference. Result has 141 places, 140 transitions, 346 flow [2023-11-19 07:41:37,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=141, PETRI_TRANSITIONS=140} [2023-11-19 07:41:37,404 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -32 predicate places. [2023-11-19 07:41:37,404 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 140 transitions, 346 flow [2023-11-19 07:41:37,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.0) internal successors, (1410), 3 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:37,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:37,405 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] [2023-11-19 07:41:37,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:41:37,405 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:37,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:37,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1640370636, now seen corresponding path program 1 times [2023-11-19 07:41:37,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:37,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871129773] [2023-11-19 07:41:37,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:37,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:37,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:37,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:37,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871129773] [2023-11-19 07:41:37,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871129773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:37,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:37,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:37,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739265410] [2023-11-19 07:41:37,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:37,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:41:37,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:37,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:37,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:37,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 907 [2023-11-19 07:41:37,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 140 transitions, 346 flow. Second operand has 5 states, 5 states have (on average 463.8) internal successors, (2319), 5 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:37,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:37,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 907 [2023-11-19 07:41:37,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:38,716 INFO L124 PetriNetUnfolderBase]: 2501/6980 cut-off events. [2023-11-19 07:41:38,716 INFO L125 PetriNetUnfolderBase]: For 953/967 co-relation queries the response was YES. [2023-11-19 07:41:38,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12246 conditions, 6980 events. 2501/6980 cut-off events. For 953/967 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 61315 event pairs, 1383 based on Foata normal form. 60/6184 useless extension candidates. Maximal degree in co-relation 12237. Up to 2393 conditions per place. [2023-11-19 07:41:38,789 INFO L140 encePairwiseOnDemand]: 899/907 looper letters, 116 selfloop transitions, 7 changer transitions 0/210 dead transitions. [2023-11-19 07:41:38,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 210 transitions, 783 flow [2023-11-19 07:41:38,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:41:38,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2884 transitions. [2023-11-19 07:41:38,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.529952223447262 [2023-11-19 07:41:38,801 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2884 transitions. [2023-11-19 07:41:38,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2884 transitions. [2023-11-19 07:41:38,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:38,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2884 transitions. [2023-11-19 07:41:38,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 480.6666666666667) internal successors, (2884), 6 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:38,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:38,826 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:38,826 INFO L175 Difference]: Start difference. First operand has 141 places, 140 transitions, 346 flow. Second operand 6 states and 2884 transitions. [2023-11-19 07:41:38,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 210 transitions, 783 flow [2023-11-19 07:41:38,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 210 transitions, 783 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:41:38,839 INFO L231 Difference]: Finished difference. Result has 150 places, 146 transitions, 401 flow [2023-11-19 07:41:38,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=401, PETRI_PLACES=150, PETRI_TRANSITIONS=146} [2023-11-19 07:41:38,840 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -23 predicate places. [2023-11-19 07:41:38,840 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 146 transitions, 401 flow [2023-11-19 07:41:38,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 463.8) internal successors, (2319), 5 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:38,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:38,841 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] [2023-11-19 07:41:38,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:41:38,842 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:38,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:38,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1890964287, now seen corresponding path program 1 times [2023-11-19 07:41:38,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:38,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119439786] [2023-11-19 07:41:38,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:38,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:39,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:39,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:39,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119439786] [2023-11-19 07:41:39,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119439786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:39,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:39,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:41:39,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36175835] [2023-11-19 07:41:39,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:39,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:39,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:39,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:39,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:39,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 907 [2023-11-19 07:41:39,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 146 transitions, 401 flow. Second operand has 6 states, 6 states have (on average 456.0) internal successors, (2736), 6 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:39,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:39,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 907 [2023-11-19 07:41:39,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:40,328 INFO L124 PetriNetUnfolderBase]: 1949/5474 cut-off events. [2023-11-19 07:41:40,329 INFO L125 PetriNetUnfolderBase]: For 1131/1137 co-relation queries the response was YES. [2023-11-19 07:41:40,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9909 conditions, 5474 events. 1949/5474 cut-off events. For 1131/1137 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 45099 event pairs, 1027 based on Foata normal form. 23/4925 useless extension candidates. Maximal degree in co-relation 9895. Up to 2243 conditions per place. [2023-11-19 07:41:40,403 INFO L140 encePairwiseOnDemand]: 897/907 looper letters, 121 selfloop transitions, 12 changer transitions 0/220 dead transitions. [2023-11-19 07:41:40,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 220 transitions, 894 flow [2023-11-19 07:41:40,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:41:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:41:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3756 transitions. [2023-11-19 07:41:40,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5176405733186329 [2023-11-19 07:41:40,418 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3756 transitions. [2023-11-19 07:41:40,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3756 transitions. [2023-11-19 07:41:40,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:40,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3756 transitions. [2023-11-19 07:41:40,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 469.5) internal successors, (3756), 8 states have internal predecessors, (3756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:40,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 907.0) internal successors, (8163), 9 states have internal predecessors, (8163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:40,448 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 907.0) internal successors, (8163), 9 states have internal predecessors, (8163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:40,448 INFO L175 Difference]: Start difference. First operand has 150 places, 146 transitions, 401 flow. Second operand 8 states and 3756 transitions. [2023-11-19 07:41:40,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 220 transitions, 894 flow [2023-11-19 07:41:40,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 220 transitions, 888 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-19 07:41:40,461 INFO L231 Difference]: Finished difference. Result has 159 places, 151 transitions, 455 flow [2023-11-19 07:41:40,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=455, PETRI_PLACES=159, PETRI_TRANSITIONS=151} [2023-11-19 07:41:40,462 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -14 predicate places. [2023-11-19 07:41:40,463 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 151 transitions, 455 flow [2023-11-19 07:41:40,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.0) internal successors, (2736), 6 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:40,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:40,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:40,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:41:40,464 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:40,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:40,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2040680954, now seen corresponding path program 1 times [2023-11-19 07:41:40,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:40,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564984300] [2023-11-19 07:41:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:40,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:41:40,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:40,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564984300] [2023-11-19 07:41:40,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564984300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:40,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:40,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:41:40,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761166906] [2023-11-19 07:41:40,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:40,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:40,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:40,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:40,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:40,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 907 [2023-11-19 07:41:40,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 151 transitions, 455 flow. Second operand has 6 states, 6 states have (on average 455.6666666666667) internal successors, (2734), 6 states have internal predecessors, (2734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:40,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:40,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 907 [2023-11-19 07:41:40,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:42,231 INFO L124 PetriNetUnfolderBase]: 3449/8980 cut-off events. [2023-11-19 07:41:42,232 INFO L125 PetriNetUnfolderBase]: For 3140/3164 co-relation queries the response was YES. [2023-11-19 07:41:42,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17734 conditions, 8980 events. 3449/8980 cut-off events. For 3140/3164 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 80068 event pairs, 1647 based on Foata normal form. 68/8200 useless extension candidates. Maximal degree in co-relation 17717. Up to 2744 conditions per place. [2023-11-19 07:41:42,307 INFO L140 encePairwiseOnDemand]: 899/907 looper letters, 189 selfloop transitions, 16 changer transitions 0/292 dead transitions. [2023-11-19 07:41:42,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 292 transitions, 1407 flow [2023-11-19 07:41:42,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:41:42,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:41:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3335 transitions. [2023-11-19 07:41:42,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5252795715860765 [2023-11-19 07:41:42,318 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3335 transitions. [2023-11-19 07:41:42,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3335 transitions. [2023-11-19 07:41:42,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:42,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3335 transitions. [2023-11-19 07:41:42,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 476.42857142857144) internal successors, (3335), 7 states have internal predecessors, (3335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:42,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 907.0) internal successors, (7256), 8 states have internal predecessors, (7256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:42,341 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 907.0) internal successors, (7256), 8 states have internal predecessors, (7256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:42,342 INFO L175 Difference]: Start difference. First operand has 159 places, 151 transitions, 455 flow. Second operand 7 states and 3335 transitions. [2023-11-19 07:41:42,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 292 transitions, 1407 flow [2023-11-19 07:41:42,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 292 transitions, 1401 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:41:42,370 INFO L231 Difference]: Finished difference. Result has 167 places, 160 transitions, 561 flow [2023-11-19 07:41:42,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=561, PETRI_PLACES=167, PETRI_TRANSITIONS=160} [2023-11-19 07:41:42,371 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -6 predicate places. [2023-11-19 07:41:42,371 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 160 transitions, 561 flow [2023-11-19 07:41:42,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 455.6666666666667) internal successors, (2734), 6 states have internal predecessors, (2734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:42,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:42,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:42,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:41:42,372 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:42,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:42,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1600163419, now seen corresponding path program 1 times [2023-11-19 07:41:42,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:42,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121605175] [2023-11-19 07:41:42,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:42,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:42,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:42,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:42,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121605175] [2023-11-19 07:41:42,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121605175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:42,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:42,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:41:42,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439227344] [2023-11-19 07:41:42,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:42,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:42,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:42,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:42,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:43,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 907 [2023-11-19 07:41:43,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 160 transitions, 561 flow. Second operand has 6 states, 6 states have (on average 456.6666666666667) internal successors, (2740), 6 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:43,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:43,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 907 [2023-11-19 07:41:43,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:45,179 INFO L124 PetriNetUnfolderBase]: 4265/10264 cut-off events. [2023-11-19 07:41:45,179 INFO L125 PetriNetUnfolderBase]: For 6674/6678 co-relation queries the response was YES. [2023-11-19 07:41:45,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21885 conditions, 10264 events. 4265/10264 cut-off events. For 6674/6678 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 90023 event pairs, 1940 based on Foata normal form. 0/9449 useless extension candidates. Maximal degree in co-relation 21863. Up to 5052 conditions per place. [2023-11-19 07:41:45,296 INFO L140 encePairwiseOnDemand]: 899/907 looper letters, 177 selfloop transitions, 6 changer transitions 0/258 dead transitions. [2023-11-19 07:41:45,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 258 transitions, 1243 flow [2023-11-19 07:41:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:45,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:41:45,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2875 transitions. [2023-11-19 07:41:45,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5282984196986402 [2023-11-19 07:41:45,308 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2875 transitions. [2023-11-19 07:41:45,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2875 transitions. [2023-11-19 07:41:45,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:45,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2875 transitions. [2023-11-19 07:41:45,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 479.1666666666667) internal successors, (2875), 6 states have internal predecessors, (2875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:45,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:45,331 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:45,331 INFO L175 Difference]: Start difference. First operand has 167 places, 160 transitions, 561 flow. Second operand 6 states and 2875 transitions. [2023-11-19 07:41:45,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 258 transitions, 1243 flow [2023-11-19 07:41:45,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 258 transitions, 1237 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-19 07:41:45,365 INFO L231 Difference]: Finished difference. Result has 170 places, 158 transitions, 563 flow [2023-11-19 07:41:45,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=563, PETRI_PLACES=170, PETRI_TRANSITIONS=158} [2023-11-19 07:41:45,366 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -3 predicate places. [2023-11-19 07:41:45,366 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 158 transitions, 563 flow [2023-11-19 07:41:45,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.6666666666667) internal successors, (2740), 6 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:45,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:45,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:45,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:41:45,368 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:45,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash 552485307, now seen corresponding path program 1 times [2023-11-19 07:41:45,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:45,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376732901] [2023-11-19 07:41:45,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:45,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:41:45,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:45,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376732901] [2023-11-19 07:41:45,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376732901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:45,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:45,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:41:45,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421860704] [2023-11-19 07:41:45,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:45,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:41:45,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:45,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:45,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:45,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 907 [2023-11-19 07:41:45,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 158 transitions, 563 flow. Second operand has 5 states, 5 states have (on average 464.6) internal successors, (2323), 5 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:45,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:45,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 907 [2023-11-19 07:41:45,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:46,823 INFO L124 PetriNetUnfolderBase]: 2581/7142 cut-off events. [2023-11-19 07:41:46,824 INFO L125 PetriNetUnfolderBase]: For 4271/4275 co-relation queries the response was YES. [2023-11-19 07:41:46,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14767 conditions, 7142 events. 2581/7142 cut-off events. For 4271/4275 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 61797 event pairs, 1476 based on Foata normal form. 42/6598 useless extension candidates. Maximal degree in co-relation 14744. Up to 2967 conditions per place. [2023-11-19 07:41:46,901 INFO L140 encePairwiseOnDemand]: 901/907 looper letters, 107 selfloop transitions, 10 changer transitions 0/202 dead transitions. [2023-11-19 07:41:46,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 202 transitions, 979 flow [2023-11-19 07:41:46,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:46,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:41:46,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2400 transitions. [2023-11-19 07:41:46,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5292171995589857 [2023-11-19 07:41:46,913 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2400 transitions. [2023-11-19 07:41:46,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2400 transitions. [2023-11-19 07:41:46,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:46,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2400 transitions. [2023-11-19 07:41:46,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 480.0) internal successors, (2400), 5 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:46,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 907.0) internal successors, (5442), 6 states have internal predecessors, (5442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:46,933 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 907.0) internal successors, (5442), 6 states have internal predecessors, (5442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:46,933 INFO L175 Difference]: Start difference. First operand has 170 places, 158 transitions, 563 flow. Second operand 5 states and 2400 transitions. [2023-11-19 07:41:46,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 202 transitions, 979 flow [2023-11-19 07:41:46,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 202 transitions, 967 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:41:46,962 INFO L231 Difference]: Finished difference. Result has 171 places, 162 transitions, 615 flow [2023-11-19 07:41:46,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=615, PETRI_PLACES=171, PETRI_TRANSITIONS=162} [2023-11-19 07:41:46,963 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -2 predicate places. [2023-11-19 07:41:46,963 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 162 transitions, 615 flow [2023-11-19 07:41:46,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 464.6) internal successors, (2323), 5 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:46,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:46,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:46,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:41:46,965 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:46,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:46,965 INFO L85 PathProgramCache]: Analyzing trace with hash -218656390, now seen corresponding path program 1 times [2023-11-19 07:41:46,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:46,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301084992] [2023-11-19 07:41:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:46,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:47,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:47,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301084992] [2023-11-19 07:41:47,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301084992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:47,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:47,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:41:47,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827742365] [2023-11-19 07:41:47,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:47,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:47,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:47,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:47,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:48,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 907 [2023-11-19 07:41:48,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 162 transitions, 615 flow. Second operand has 6 states, 6 states have (on average 457.1666666666667) internal successors, (2743), 6 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:48,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:48,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 907 [2023-11-19 07:41:48,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:49,217 INFO L124 PetriNetUnfolderBase]: 3262/7549 cut-off events. [2023-11-19 07:41:49,218 INFO L125 PetriNetUnfolderBase]: For 5973/5977 co-relation queries the response was YES. [2023-11-19 07:41:49,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16863 conditions, 7549 events. 3262/7549 cut-off events. For 5973/5977 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 61585 event pairs, 1311 based on Foata normal form. 0/6973 useless extension candidates. Maximal degree in co-relation 16838. Up to 3565 conditions per place. [2023-11-19 07:41:49,285 INFO L140 encePairwiseOnDemand]: 899/907 looper letters, 164 selfloop transitions, 6 changer transitions 0/244 dead transitions. [2023-11-19 07:41:49,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 244 transitions, 1271 flow [2023-11-19 07:41:49,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:49,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:41:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2858 transitions. [2023-11-19 07:41:49,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5251745681734656 [2023-11-19 07:41:49,296 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2858 transitions. [2023-11-19 07:41:49,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2858 transitions. [2023-11-19 07:41:49,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:49,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2858 transitions. [2023-11-19 07:41:49,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 476.3333333333333) internal successors, (2858), 6 states have internal predecessors, (2858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:49,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:49,317 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:49,318 INFO L175 Difference]: Start difference. First operand has 171 places, 162 transitions, 615 flow. Second operand 6 states and 2858 transitions. [2023-11-19 07:41:49,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 244 transitions, 1271 flow [2023-11-19 07:41:49,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 244 transitions, 1261 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:41:49,349 INFO L231 Difference]: Finished difference. Result has 172 places, 160 transitions, 613 flow [2023-11-19 07:41:49,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=613, PETRI_PLACES=172, PETRI_TRANSITIONS=160} [2023-11-19 07:41:49,350 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -1 predicate places. [2023-11-19 07:41:49,350 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 160 transitions, 613 flow [2023-11-19 07:41:49,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 457.1666666666667) internal successors, (2743), 6 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:49,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:49,351 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] [2023-11-19 07:41:49,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:41:49,352 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:49,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:49,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1396673233, now seen corresponding path program 1 times [2023-11-19 07:41:49,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:49,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71426831] [2023-11-19 07:41:49,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:49,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:49,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:49,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:49,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71426831] [2023-11-19 07:41:49,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71426831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:49,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:49,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:41:49,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868742558] [2023-11-19 07:41:49,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:49,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:49,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:49,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:49,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:50,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 907 [2023-11-19 07:41:50,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 160 transitions, 613 flow. Second operand has 6 states, 6 states have (on average 463.6666666666667) internal successors, (2782), 6 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:50,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:50,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 907 [2023-11-19 07:41:50,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:51,576 INFO L124 PetriNetUnfolderBase]: 2867/7204 cut-off events. [2023-11-19 07:41:51,576 INFO L125 PetriNetUnfolderBase]: For 5825/5829 co-relation queries the response was YES. [2023-11-19 07:41:51,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16034 conditions, 7204 events. 2867/7204 cut-off events. For 5825/5829 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 60245 event pairs, 1441 based on Foata normal form. 0/6726 useless extension candidates. Maximal degree in co-relation 16009. Up to 3848 conditions per place. [2023-11-19 07:41:51,629 INFO L140 encePairwiseOnDemand]: 902/907 looper letters, 107 selfloop transitions, 4 changer transitions 94/283 dead transitions. [2023-11-19 07:41:51,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 283 transitions, 1673 flow [2023-11-19 07:41:51,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:51,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:41:51,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2898 transitions. [2023-11-19 07:41:51,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5325248070562293 [2023-11-19 07:41:51,639 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2898 transitions. [2023-11-19 07:41:51,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2898 transitions. [2023-11-19 07:41:51,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:51,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2898 transitions. [2023-11-19 07:41:51,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 483.0) internal successors, (2898), 6 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:51,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:51,658 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:51,658 INFO L175 Difference]: Start difference. First operand has 172 places, 160 transitions, 613 flow. Second operand 6 states and 2898 transitions. [2023-11-19 07:41:51,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 283 transitions, 1673 flow [2023-11-19 07:41:51,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 283 transitions, 1645 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:41:51,686 INFO L231 Difference]: Finished difference. Result has 171 places, 137 transitions, 404 flow [2023-11-19 07:41:51,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=404, PETRI_PLACES=171, PETRI_TRANSITIONS=137} [2023-11-19 07:41:51,687 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -2 predicate places. [2023-11-19 07:41:51,687 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 137 transitions, 404 flow [2023-11-19 07:41:51,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 463.6666666666667) internal successors, (2782), 6 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:51,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:51,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:51,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 07:41:51,688 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:51,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:51,689 INFO L85 PathProgramCache]: Analyzing trace with hash -711013257, now seen corresponding path program 1 times [2023-11-19 07:41:51,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:51,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085121800] [2023-11-19 07:41:51,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:51,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:52,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:52,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085121800] [2023-11-19 07:41:52,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085121800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:52,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:52,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:41:52,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126446176] [2023-11-19 07:41:52,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:52,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:52,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:52,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:52,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:52,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 907 [2023-11-19 07:41:52,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 137 transitions, 404 flow. Second operand has 6 states, 6 states have (on average 457.1666666666667) internal successors, (2743), 6 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:52,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:52,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 907 [2023-11-19 07:41:52,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:53,650 INFO L124 PetriNetUnfolderBase]: 1909/4617 cut-off events. [2023-11-19 07:41:53,650 INFO L125 PetriNetUnfolderBase]: For 2584/2585 co-relation queries the response was YES. [2023-11-19 07:41:53,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9783 conditions, 4617 events. 1909/4617 cut-off events. For 2584/2585 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 35222 event pairs, 734 based on Foata normal form. 0/4326 useless extension candidates. Maximal degree in co-relation 9758. Up to 1987 conditions per place. [2023-11-19 07:41:53,678 INFO L140 encePairwiseOnDemand]: 899/907 looper letters, 83 selfloop transitions, 6 changer transitions 61/215 dead transitions. [2023-11-19 07:41:53,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 215 transitions, 974 flow [2023-11-19 07:41:53,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:53,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:41:53,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2855 transitions. [2023-11-19 07:41:53,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5246233002572583 [2023-11-19 07:41:53,690 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2855 transitions. [2023-11-19 07:41:53,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2855 transitions. [2023-11-19 07:41:53,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:53,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2855 transitions. [2023-11-19 07:41:53,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 475.8333333333333) internal successors, (2855), 6 states have internal predecessors, (2855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:53,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:53,711 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:53,711 INFO L175 Difference]: Start difference. First operand has 171 places, 137 transitions, 404 flow. Second operand 6 states and 2855 transitions. [2023-11-19 07:41:53,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 215 transitions, 974 flow [2023-11-19 07:41:53,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 215 transitions, 843 flow, removed 44 selfloop flow, removed 19 redundant places. [2023-11-19 07:41:53,728 INFO L231 Difference]: Finished difference. Result has 144 places, 118 transitions, 323 flow [2023-11-19 07:41:53,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=907, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=323, PETRI_PLACES=144, PETRI_TRANSITIONS=118} [2023-11-19 07:41:53,729 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -29 predicate places. [2023-11-19 07:41:53,730 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 118 transitions, 323 flow [2023-11-19 07:41:53,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 457.1666666666667) internal successors, (2743), 6 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:53,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:53,731 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] [2023-11-19 07:41:53,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-19 07:41:53,731 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-19 07:41:53,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:53,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1321636609, now seen corresponding path program 1 times [2023-11-19 07:41:53,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:53,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185663131] [2023-11-19 07:41:53,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:53,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:54,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:54,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:54,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185663131] [2023-11-19 07:41:54,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185663131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:54,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:54,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:41:54,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755523598] [2023-11-19 07:41:54,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:54,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:54,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:54,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:54,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:54,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 907 [2023-11-19 07:41:54,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 118 transitions, 323 flow. Second operand has 6 states, 6 states have (on average 456.6666666666667) internal successors, (2740), 6 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:54,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:54,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 907 [2023-11-19 07:41:54,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:55,792 INFO L124 PetriNetUnfolderBase]: 1581/3848 cut-off events. [2023-11-19 07:41:55,792 INFO L125 PetriNetUnfolderBase]: For 720/721 co-relation queries the response was YES. [2023-11-19 07:41:55,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7390 conditions, 3848 events. 1581/3848 cut-off events. For 720/721 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 27694 event pairs, 599 based on Foata normal form. 36/3625 useless extension candidates. Maximal degree in co-relation 7378. Up to 1493 conditions per place. [2023-11-19 07:41:55,816 INFO L140 encePairwiseOnDemand]: 900/907 looper letters, 0 selfloop transitions, 0 changer transitions 212/212 dead transitions. [2023-11-19 07:41:55,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 212 transitions, 889 flow [2023-11-19 07:41:55,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:41:55,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2866 transitions. [2023-11-19 07:41:55,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5266446159500183 [2023-11-19 07:41:55,826 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2866 transitions. [2023-11-19 07:41:55,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2866 transitions. [2023-11-19 07:41:55,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:55,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2866 transitions. [2023-11-19 07:41:55,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 477.6666666666667) internal successors, (2866), 6 states have internal predecessors, (2866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:55,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:55,844 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 907.0) internal successors, (6349), 7 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:55,845 INFO L175 Difference]: Start difference. First operand has 144 places, 118 transitions, 323 flow. Second operand 6 states and 2866 transitions. [2023-11-19 07:41:55,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 212 transitions, 889 flow [2023-11-19 07:41:55,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 212 transitions, 853 flow, removed 0 selfloop flow, removed 5 redundant places.