./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/scull.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/scull.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:09:00,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:09:00,289 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:09:00,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:09:00,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:09:00,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:09:00,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:09:00,343 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:09:00,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:09:00,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:09:00,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:09:00,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:09:00,353 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:09:00,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:09:00,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:09:00,356 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:09:00,356 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:09:00,357 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:09:00,357 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:09:00,358 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:09:00,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:09:00,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:09:00,360 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:09:00,360 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:09:00,361 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:09:00,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:09:00,362 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:09:00,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:09:00,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:09:00,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:09:00,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:09:00,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:09:00,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:09:00,366 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:09:00,366 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:09:00,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:09:00,367 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:09:00,367 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:09:00,368 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:09:00,368 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:09:00,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:09:00,369 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_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b [2023-11-21 22:09:00,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:09:00,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:09:00,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:09:00,721 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:09:00,722 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:09:00,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-atomic/scull.i [2023-11-21 22:09:03,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:09:04,129 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:09:04,130 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/sv-benchmarks/c/pthread-atomic/scull.i [2023-11-21 22:09:04,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/data/fbbbd241f/2b049108fb90449486f592e35be5b8ef/FLAGd9f1cb3c2 [2023-11-21 22:09:04,163 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/data/fbbbd241f/2b049108fb90449486f592e35be5b8ef [2023-11-21 22:09:04,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:09:04,167 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:09:04,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:04,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:09:04,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:09:04,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:04,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b072cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04, skipping insertion in model container [2023-11-21 22:09:04,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:04,231 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:09:04,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:04,828 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:09:04,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:04,985 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:09:04,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04 WrapperNode [2023-11-21 22:09:04,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:04,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:04,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:09:04,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:09:04,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:05,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:05,072 INFO L138 Inliner]: procedures = 186, calls = 70, calls flagged for inlining = 32, calls inlined = 29, statements flattened = 565 [2023-11-21 22:09:05,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:05,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:09:05,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:09:05,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:09:05,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:05,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:05,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:05,093 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:05,111 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:05,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:05,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:05,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:05,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:09:05,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:09:05,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:09:05,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:09:05,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (1/1) ... [2023-11-21 22:09:05,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:09:05,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:05,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:09:05,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60228db8-e30e-421a-bb9c-675b9dfd6ea3/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:09:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:09:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:09:05,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:09:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:09:05,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:09:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:09:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:09:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:09:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2023-11-21 22:09:05,258 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2023-11-21 22:09:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:09:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:09:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:09:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:09:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:09:05,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:09:05,263 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:09:05,486 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:09:05,488 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:09:05,610 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: havoc scull_trim_#t~nondet9#1, scull_trim_#t~nondet10#1, scull_trim_#t~nondet11#1, scull_trim_#t~nondet12#1, scull_trim_~dev#1, scull_trim_~qset~0#1; [2023-11-21 22:09:05,610 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-1: havoc scull_trim_#in~dev#1;assume { :end_inline_scull_trim } true; [2023-11-21 22:09:05,610 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-2: assume -2147483648 <= scull_cleanup_module_#t~ret43#1 && scull_cleanup_module_#t~ret43#1 <= 2147483647; [2023-11-21 22:09:05,610 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-3: havoc scull_cleanup_module_#t~ret43#1; [2023-11-21 22:09:05,610 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L887: havoc scull_cleanup_module_#t~nondet42#1, scull_cleanup_module_#t~ret43#1, scull_cleanup_module_~dev~4#1;assume { :end_inline_scull_cleanup_module } true; [2023-11-21 22:09:05,611 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret43#1 := scull_trim_#res#1; [2023-11-21 22:09:05,611 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L898: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2023-11-21 22:09:06,389 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:09:06,447 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:09:06,455 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:09:06,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:06 BoogieIcfgContainer [2023-11-21 22:09:06,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:09:06,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:09:06,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:09:06,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:09:06,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:09:04" (1/3) ... [2023-11-21 22:09:06,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7820dae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:09:06, skipping insertion in model container [2023-11-21 22:09:06,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:04" (2/3) ... [2023-11-21 22:09:06,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7820dae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:09:06, skipping insertion in model container [2023-11-21 22:09:06,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:06" (3/3) ... [2023-11-21 22:09:06,476 INFO L112 eAbstractionObserver]: Analyzing ICFG scull.i [2023-11-21 22:09:06,488 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:09:06,498 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:09:06,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2023-11-21 22:09:06,498 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:09:06,726 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 22:09:06,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 615 places, 625 transitions, 1271 flow [2023-11-21 22:09:07,239 INFO L124 PetriNetUnfolderBase]: 20/622 cut-off events. [2023-11-21 22:09:07,240 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:09:07,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 622 events. 20/622 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1934 event pairs, 0 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 561. Up to 4 conditions per place. [2023-11-21 22:09:07,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 615 places, 625 transitions, 1271 flow [2023-11-21 22:09:07,296 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 600 places, 610 transitions, 1235 flow [2023-11-21 22:09:07,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:09:07,332 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;@73a2a23f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:09:07,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2023-11-21 22:09:07,350 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:09:07,350 INFO L124 PetriNetUnfolderBase]: 0/94 cut-off events. [2023-11-21 22:09:07,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:09:07,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:09:07,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:07,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-21 22:09:07,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:07,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1480908291, now seen corresponding path program 1 times [2023-11-21 22:09:07,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:07,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165049014] [2023-11-21 22:09:07,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:07,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:09:07,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:07,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165049014] [2023-11-21 22:09:07,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165049014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:07,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:07,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:09:07,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409210034] [2023-11-21 22:09:07,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:07,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:09:07,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:07,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:09:07,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:09:07,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 593 out of 625 [2023-11-21 22:09:07,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 610 transitions, 1235 flow. Second operand has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:07,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:09:07,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 593 of 625 [2023-11-21 22:09:07,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:09:09,334 INFO L124 PetriNetUnfolderBase]: 246/4354 cut-off events. [2023-11-21 22:09:09,334 INFO L125 PetriNetUnfolderBase]: For 177/182 co-relation queries the response was YES. [2023-11-21 22:09:09,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4678 conditions, 4354 events. 246/4354 cut-off events. For 177/182 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 36331 event pairs, 112 based on Foata normal form. 94/3944 useless extension candidates. Maximal degree in co-relation 4374. Up to 241 conditions per place. [2023-11-21 22:09:09,479 INFO L140 encePairwiseOnDemand]: 613/625 looper letters, 19 selfloop transitions, 2 changer transitions 0/592 dead transitions. [2023-11-21 22:09:09,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 592 transitions, 1247 flow [2023-11-21 22:09:09,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:09:09,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:09:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1810 transitions. [2023-11-21 22:09:09,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9653333333333334 [2023-11-21 22:09:09,505 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1810 transitions. [2023-11-21 22:09:09,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1810 transitions. [2023-11-21 22:09:09,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:09:09,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1810 transitions. [2023-11-21 22:09:09,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 603.3333333333334) internal successors, (1810), 3 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:09,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:09,537 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:09,539 INFO L175 Difference]: Start difference. First operand has 600 places, 610 transitions, 1235 flow. Second operand 3 states and 1810 transitions. [2023-11-21 22:09:09,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 592 transitions, 1247 flow [2023-11-21 22:09:09,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 592 transitions, 1235 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:09:09,563 INFO L231 Difference]: Finished difference. Result has 584 places, 590 transitions, 1196 flow [2023-11-21 22:09:09,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=581, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1196, PETRI_PLACES=584, PETRI_TRANSITIONS=590} [2023-11-21 22:09:09,570 INFO L281 CegarLoopForPetriNet]: 600 programPoint places, -16 predicate places. [2023-11-21 22:09:09,571 INFO L495 AbstractCegarLoop]: Abstraction has has 584 places, 590 transitions, 1196 flow [2023-11-21 22:09:09,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:09,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:09:09,573 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:09,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:09:09,573 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-21 22:09:09,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:09,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1178216341, now seen corresponding path program 1 times [2023-11-21 22:09:09,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:09,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727673921] [2023-11-21 22:09:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:09,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:10,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:09:10,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:10,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727673921] [2023-11-21 22:09:10,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727673921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:10,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:10,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:09:10,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879495631] [2023-11-21 22:09:10,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:10,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:09:10,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:10,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:09:10,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:09:10,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 625 [2023-11-21 22:09:10,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 584 places, 590 transitions, 1196 flow. Second operand has 6 states, 6 states have (on average 590.6666666666666) internal successors, (3544), 6 states have internal predecessors, (3544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:10,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:09:10,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 625 [2023-11-21 22:09:10,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:09:11,736 INFO L124 PetriNetUnfolderBase]: 331/2429 cut-off events. [2023-11-21 22:09:11,737 INFO L125 PetriNetUnfolderBase]: For 8/77 co-relation queries the response was YES. [2023-11-21 22:09:11,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2958 conditions, 2429 events. 331/2429 cut-off events. For 8/77 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 18256 event pairs, 20 based on Foata normal form. 4/2178 useless extension candidates. Maximal degree in co-relation 2541. Up to 228 conditions per place. [2023-11-21 22:09:11,825 INFO L140 encePairwiseOnDemand]: 620/625 looper letters, 48 selfloop transitions, 4 changer transitions 0/621 dead transitions. [2023-11-21 22:09:11,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 621 transitions, 1362 flow [2023-11-21 22:09:11,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:09:11,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:09:11,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3587 transitions. [2023-11-21 22:09:11,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9565333333333333 [2023-11-21 22:09:11,839 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3587 transitions. [2023-11-21 22:09:11,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3587 transitions. [2023-11-21 22:09:11,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:09:11,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3587 transitions. [2023-11-21 22:09:11,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 597.8333333333334) internal successors, (3587), 6 states have internal predecessors, (3587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:11,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 625.0) internal successors, (4375), 7 states have internal predecessors, (4375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:11,871 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 625.0) internal successors, (4375), 7 states have internal predecessors, (4375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:11,872 INFO L175 Difference]: Start difference. First operand has 584 places, 590 transitions, 1196 flow. Second operand 6 states and 3587 transitions. [2023-11-21 22:09:11,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 621 transitions, 1362 flow [2023-11-21 22:09:11,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 621 transitions, 1362 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:09:11,889 INFO L231 Difference]: Finished difference. Result has 588 places, 589 transitions, 1202 flow [2023-11-21 22:09:11,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1194, PETRI_DIFFERENCE_MINUEND_PLACES=583, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1202, PETRI_PLACES=588, PETRI_TRANSITIONS=589} [2023-11-21 22:09:11,892 INFO L281 CegarLoopForPetriNet]: 600 programPoint places, -12 predicate places. [2023-11-21 22:09:11,892 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 589 transitions, 1202 flow [2023-11-21 22:09:11,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 590.6666666666666) internal successors, (3544), 6 states have internal predecessors, (3544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:11,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:09:11,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:11,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:09:11,903 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting loaderErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-21 22:09:11,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:11,904 INFO L85 PathProgramCache]: Analyzing trace with hash -811736548, now seen corresponding path program 1 times [2023-11-21 22:09:11,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:11,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845672963] [2023-11-21 22:09:11,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:11,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:09:11,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:11,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845672963] [2023-11-21 22:09:11,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845672963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:11,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:11,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:09:11,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445679550] [2023-11-21 22:09:11,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:11,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:09:11,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:11,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:09:11,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:09:11,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 581 out of 625 [2023-11-21 22:09:12,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 589 transitions, 1202 flow. Second operand has 3 states, 3 states have (on average 582.0) internal successors, (1746), 3 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:12,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:09:12,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 581 of 625 [2023-11-21 22:09:12,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:09:19,040 INFO L124 PetriNetUnfolderBase]: 2553/28111 cut-off events. [2023-11-21 22:09:19,040 INFO L125 PetriNetUnfolderBase]: For 293/302 co-relation queries the response was YES. [2023-11-21 22:09:19,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31460 conditions, 28111 events. 2553/28111 cut-off events. For 293/302 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 377371 event pairs, 583 based on Foata normal form. 0/24727 useless extension candidates. Maximal degree in co-relation 29679. Up to 2002 conditions per place. [2023-11-21 22:09:19,435 INFO L140 encePairwiseOnDemand]: 607/625 looper letters, 43 selfloop transitions, 13 changer transitions 0/614 dead transitions. [2023-11-21 22:09:19,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 614 transitions, 1369 flow [2023-11-21 22:09:19,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:09:19,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:09:19,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1804 transitions. [2023-11-21 22:09:19,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9621333333333333 [2023-11-21 22:09:19,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1804 transitions. [2023-11-21 22:09:19,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1804 transitions. [2023-11-21 22:09:19,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:09:19,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1804 transitions. [2023-11-21 22:09:19,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 601.3333333333334) internal successors, (1804), 3 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:19,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:19,459 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:19,460 INFO L175 Difference]: Start difference. First operand has 588 places, 589 transitions, 1202 flow. Second operand 3 states and 1804 transitions. [2023-11-21 22:09:19,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 590 places, 614 transitions, 1369 flow [2023-11-21 22:09:19,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 614 transitions, 1362 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:09:19,485 INFO L231 Difference]: Finished difference. Result has 588 places, 602 transitions, 1309 flow [2023-11-21 22:09:19,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1195, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1309, PETRI_PLACES=588, PETRI_TRANSITIONS=602} [2023-11-21 22:09:19,488 INFO L281 CegarLoopForPetriNet]: 600 programPoint places, -12 predicate places. [2023-11-21 22:09:19,488 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 602 transitions, 1309 flow [2023-11-21 22:09:19,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 582.0) internal successors, (1746), 3 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:19,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:09:19,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:19,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:09:19,491 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting loaderErr1ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-21 22:09:19,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:19,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1826137470, now seen corresponding path program 1 times [2023-11-21 22:09:19,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:19,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835528873] [2023-11-21 22:09:19,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:19,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:09:19,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:19,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835528873] [2023-11-21 22:09:19,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835528873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:19,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:19,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:09:19,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366083606] [2023-11-21 22:09:19,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:19,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:09:19,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:19,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:09:19,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:09:19,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 625 [2023-11-21 22:09:19,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 602 transitions, 1309 flow. Second operand has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 3 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:19,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:09:19,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 625 [2023-11-21 22:09:19,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:09:30,344 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1759] L781-3-->L781-4: Formula: (= |v_#race~dev_qset~0_22| 0) InVars {} OutVars{#race~dev_qset~0=|v_#race~dev_qset~0_22|} AuxVars[] AssignedVars[#race~dev_qset~0][385], [632#(= |#race~dev_qset~0| 0), 265#L748-4true, 620#(= |#race~i~0| 0), 334#L930-4true, thread2Thread1of1ForFork0InUse, 49#L781-4true, 544#L721-2true, Black: 630#true, 636#true, Black: 618#true]) [2023-11-21 22:09:30,345 INFO L294 olderBase$Statistics]: this new event has 276 ancestors and is cut-off event [2023-11-21 22:09:30,345 INFO L297 olderBase$Statistics]: existing Event has 178 ancestors and is cut-off event [2023-11-21 22:09:30,345 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2023-11-21 22:09:30,345 INFO L297 olderBase$Statistics]: existing Event has 178 ancestors and is cut-off event [2023-11-21 22:09:30,428 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1759] L781-3-->L781-4: Formula: (= |v_#race~dev_qset~0_22| 0) InVars {} OutVars{#race~dev_qset~0=|v_#race~dev_qset~0_22|} AuxVars[] AssignedVars[#race~dev_qset~0][385], [632#(= |#race~dev_qset~0| 0), 620#(= |#race~i~0| 0), 334#L930-4true, thread2Thread1of1ForFork0InUse, 49#L781-4true, 544#L721-2true, Black: 630#true, 36#L748-5true, 636#true, Black: 618#true]) [2023-11-21 22:09:30,428 INFO L294 olderBase$Statistics]: this new event has 277 ancestors and is cut-off event [2023-11-21 22:09:30,428 INFO L297 olderBase$Statistics]: existing Event has 179 ancestors and is cut-off event [2023-11-21 22:09:30,428 INFO L297 olderBase$Statistics]: existing Event has 179 ancestors and is cut-off event [2023-11-21 22:09:30,429 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2023-11-21 22:09:32,838 INFO L124 PetriNetUnfolderBase]: 5657/57067 cut-off events. [2023-11-21 22:09:32,838 INFO L125 PetriNetUnfolderBase]: For 1233/1254 co-relation queries the response was YES. [2023-11-21 22:09:33,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67118 conditions, 57067 events. 5657/57067 cut-off events. For 1233/1254 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 870172 event pairs, 2651 based on Foata normal form. 0/49857 useless extension candidates. Maximal degree in co-relation 36377. Up to 5376 conditions per place. [2023-11-21 22:09:33,836 INFO L140 encePairwiseOnDemand]: 614/625 looper letters, 36 selfloop transitions, 10 changer transitions 0/621 dead transitions. [2023-11-21 22:09:33,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 621 transitions, 1442 flow [2023-11-21 22:09:33,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:09:33,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:09:33,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1802 transitions. [2023-11-21 22:09:33,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9610666666666666 [2023-11-21 22:09:33,845 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1802 transitions. [2023-11-21 22:09:33,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1802 transitions. [2023-11-21 22:09:33,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:09:33,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1802 transitions. [2023-11-21 22:09:33,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 600.6666666666666) internal successors, (1802), 3 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:33,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:33,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:33,864 INFO L175 Difference]: Start difference. First operand has 588 places, 602 transitions, 1309 flow. Second operand 3 states and 1802 transitions. [2023-11-21 22:09:33,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 590 places, 621 transitions, 1442 flow [2023-11-21 22:09:33,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 621 transitions, 1416 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:09:33,911 INFO L231 Difference]: Finished difference. Result has 590 places, 611 transitions, 1361 flow [2023-11-21 22:09:33,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=592, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1361, PETRI_PLACES=590, PETRI_TRANSITIONS=611} [2023-11-21 22:09:33,914 INFO L281 CegarLoopForPetriNet]: 600 programPoint places, -10 predicate places. [2023-11-21 22:09:33,915 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 611 transitions, 1361 flow [2023-11-21 22:09:33,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 3 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:33,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:09:33,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:33,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:09:33,918 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting loaderErr2ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-21 22:09:33,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:33,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1890800609, now seen corresponding path program 1 times [2023-11-21 22:09:33,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:33,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18178728] [2023-11-21 22:09:33,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:33,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:09:34,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:34,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18178728] [2023-11-21 22:09:34,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18178728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:34,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:34,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:09:34,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806398717] [2023-11-21 22:09:34,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:34,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:09:34,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:34,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:09:34,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:09:34,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 590 out of 625 [2023-11-21 22:09:34,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 611 transitions, 1361 flow. Second operand has 3 states, 3 states have (on average 591.0) internal successors, (1773), 3 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:34,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:09:34,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 590 of 625 [2023-11-21 22:09:34,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:09:46,464 INFO L124 PetriNetUnfolderBase]: 4819/58685 cut-off events. [2023-11-21 22:09:46,464 INFO L125 PetriNetUnfolderBase]: For 726/810 co-relation queries the response was YES. [2023-11-21 22:09:47,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67504 conditions, 58685 events. 4819/58685 cut-off events. For 726/810 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 880512 event pairs, 1134 based on Foata normal form. 0/51534 useless extension candidates. Maximal degree in co-relation 64744. Up to 3179 conditions per place. [2023-11-21 22:09:47,595 INFO L140 encePairwiseOnDemand]: 619/625 looper letters, 27 selfloop transitions, 3 changer transitions 0/619 dead transitions. [2023-11-21 22:09:47,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 619 transitions, 1440 flow [2023-11-21 22:09:47,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:09:47,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:09:47,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1803 transitions. [2023-11-21 22:09:47,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9616 [2023-11-21 22:09:47,602 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1803 transitions. [2023-11-21 22:09:47,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1803 transitions. [2023-11-21 22:09:47,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:09:47,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1803 transitions. [2023-11-21 22:09:47,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 601.0) internal successors, (1803), 3 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:47,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:47,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:47,619 INFO L175 Difference]: Start difference. First operand has 590 places, 611 transitions, 1361 flow. Second operand 3 states and 1803 transitions. [2023-11-21 22:09:47,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 619 transitions, 1440 flow [2023-11-21 22:09:47,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 619 transitions, 1420 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:09:47,659 INFO L231 Difference]: Finished difference. Result has 588 places, 611 transitions, 1356 flow [2023-11-21 22:09:47,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1335, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=605, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1356, PETRI_PLACES=588, PETRI_TRANSITIONS=611} [2023-11-21 22:09:47,663 INFO L281 CegarLoopForPetriNet]: 600 programPoint places, -12 predicate places. [2023-11-21 22:09:47,664 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 611 transitions, 1356 flow [2023-11-21 22:09:47,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 591.0) internal successors, (1773), 3 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:47,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:09:47,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:47,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:09:47,668 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting loaderErr3ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-21 22:09:47,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:47,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2145075364, now seen corresponding path program 1 times [2023-11-21 22:09:47,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:47,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874898885] [2023-11-21 22:09:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:47,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:09:47,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:47,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874898885] [2023-11-21 22:09:47,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874898885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:47,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:47,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:09:47,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367257362] [2023-11-21 22:09:47,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:47,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:09:47,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:47,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:09:47,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:09:47,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 625 [2023-11-21 22:09:47,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 611 transitions, 1356 flow. Second operand has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:47,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:09:47,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 625 [2023-11-21 22:09:47,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand