./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3b-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3b-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU --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 3b5ad22496d50c8537256f76c6605916315b4e46bfea0d123c3dfe0ede8ccd5c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:13:53,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:13:53,348 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:13:53,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:13:53,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:13:53,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:13:53,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:13:53,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:13:53,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:13:53,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:13:53,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:13:53,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:13:53,410 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:13:53,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:13:53,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:13:53,411 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:13:53,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:13:53,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:13:53,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:13:53,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:13:53,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:13:53,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:13:53,415 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:13:53,415 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:13:53,416 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:13:53,416 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:13:53,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:13:53,417 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:13:53,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:13:53,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:13:53,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:13:53,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:53,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:13:53,420 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:13:53,420 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:13:53,420 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:13:53,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:13:53,421 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:13:53,421 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:13:53,422 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:13:53,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:13:53,423 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_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b5ad22496d50c8537256f76c6605916315b4e46bfea0d123c3dfe0ede8ccd5c [2024-10-31 22:13:53,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:13:53,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:13:53,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:13:53,763 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:13:53,764 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:13:53,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-races/race-2_3b-container_of.i Unable to find full path for "g++" [2024-10-31 22:13:55,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:13:56,222 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:13:56,223 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/sv-benchmarks/c/ldv-races/race-2_3b-container_of.i [2024-10-31 22:13:56,254 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/data/90833bca3/f7b62cede4434ade8629f874c9430078/FLAGb95d1d96a [2024-10-31 22:13:56,269 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/data/90833bca3/f7b62cede4434ade8629f874c9430078 [2024-10-31 22:13:56,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:13:56,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:13:56,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:56,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:13:56,281 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:13:56,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:56" (1/1) ... [2024-10-31 22:13:56,283 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f55c0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:56, skipping insertion in model container [2024-10-31 22:13:56,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:56" (1/1) ... [2024-10-31 22:13:56,365 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:13:56,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:56,964 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:13:57,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:57,202 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:13:57,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57 WrapperNode [2024-10-31 22:13:57,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:57,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:57,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:13:57,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:13:57,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (1/1) ... [2024-10-31 22:13:57,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (1/1) ... [2024-10-31 22:13:57,338 INFO L138 Inliner]: procedures = 246, calls = 42, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 230 [2024-10-31 22:13:57,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:57,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:13:57,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:13:57,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:13:57,355 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (1/1) ... [2024-10-31 22:13:57,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (1/1) ... [2024-10-31 22:13:57,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (1/1) ... [2024-10-31 22:13:57,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (1/1) ... [2024-10-31 22:13:57,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (1/1) ... [2024-10-31 22:13:57,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (1/1) ... [2024-10-31 22:13:57,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (1/1) ... [2024-10-31 22:13:57,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (1/1) ... [2024-10-31 22:13:57,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:13:57,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:13:57,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:13:57,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:13:57,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (1/1) ... [2024-10-31 22:13:57,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:57,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:57,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:13:57,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e5b278-00e2-47f1-95b2-1020561ae1d5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:13:57,514 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-31 22:13:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-31 22:13:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:13:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:13:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:13:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:13:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:13:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:13:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:13:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-31 22:13:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:13:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:13:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:13:57,519 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:13:57,930 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:13:57,932 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:13:58,552 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:13:58,552 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:13:58,587 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:13:58,587 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:13:58,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:58 BoogieIcfgContainer [2024-10-31 22:13:58,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:13:58,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:13:58,590 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:13:58,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:13:58,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:13:56" (1/3) ... [2024-10-31 22:13:58,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0303fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:58, skipping insertion in model container [2024-10-31 22:13:58,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:57" (2/3) ... [2024-10-31 22:13:58,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0303fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:58, skipping insertion in model container [2024-10-31 22:13:58,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:58" (3/3) ... [2024-10-31 22:13:58,603 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3b-container_of.i [2024-10-31 22:13:58,634 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:13:58,635 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2024-10-31 22:13:58,635 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:13:58,752 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:13:58,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 353 places, 361 transitions, 736 flow [2024-10-31 22:13:59,189 INFO L124 PetriNetUnfolderBase]: 18/445 cut-off events. [2024-10-31 22:13:59,190 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:13:59,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 445 events. 18/445 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 896 event pairs, 0 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 245. Up to 4 conditions per place. [2024-10-31 22:13:59,205 INFO L82 GeneralOperation]: Start removeDead. Operand has 353 places, 361 transitions, 736 flow [2024-10-31 22:13:59,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 351 places, 358 transitions, 728 flow [2024-10-31 22:13:59,233 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:13:59,246 INFO L333 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, 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;@2d8cb1e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:13:59,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-10-31 22:13:59,259 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:13:59,260 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-10-31 22:13:59,260 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:59,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:59,261 INFO L204 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] [2024-10-31 22:13:59,268 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-31 22:13:59,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:59,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1976845522, now seen corresponding path program 1 times [2024-10-31 22:13:59,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:59,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864926252] [2024-10-31 22:13:59,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:59,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:00,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:00,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:00,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864926252] [2024-10-31 22:14:00,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864926252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:00,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:00,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:14:00,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684576919] [2024-10-31 22:14:00,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:00,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:14:00,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:00,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:14:00,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:14:01,420 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 361 [2024-10-31 22:14:01,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 358 transitions, 728 flow. Second operand has 6 states, 6 states have (on average 267.3333333333333) internal successors, (1604), 6 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:01,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:01,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 361 [2024-10-31 22:14:01,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:09,398 INFO L124 PetriNetUnfolderBase]: 11565/37144 cut-off events. [2024-10-31 22:14:09,399 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-10-31 22:14:09,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55125 conditions, 37144 events. 11565/37144 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 429052 event pairs, 11564 based on Foata normal form. 1418/35496 useless extension candidates. Maximal degree in co-relation 54792. Up to 17925 conditions per place. [2024-10-31 22:14:09,676 INFO L140 encePairwiseOnDemand]: 343/361 looper letters, 71 selfloop transitions, 5 changer transitions 6/327 dead transitions. [2024-10-31 22:14:09,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 327 transitions, 818 flow [2024-10-31 22:14:09,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:14:09,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:14:09,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1685 transitions. [2024-10-31 22:14:09,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7779316712834718 [2024-10-31 22:14:09,702 INFO L175 Difference]: Start difference. First operand has 351 places, 358 transitions, 728 flow. Second operand 6 states and 1685 transitions. [2024-10-31 22:14:09,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 327 transitions, 818 flow [2024-10-31 22:14:09,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 327 transitions, 810 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:14:09,725 INFO L231 Difference]: Finished difference. Result has 333 places, 321 transitions, 656 flow [2024-10-31 22:14:09,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=656, PETRI_PLACES=333, PETRI_TRANSITIONS=321} [2024-10-31 22:14:09,734 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, -18 predicate places. [2024-10-31 22:14:09,735 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 321 transitions, 656 flow [2024-10-31 22:14:09,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 267.3333333333333) internal successors, (1604), 6 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:09,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:09,737 INFO L204 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] [2024-10-31 22:14:09,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:14:09,739 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-31 22:14:09,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:09,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1592184591, now seen corresponding path program 1 times [2024-10-31 22:14:09,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:09,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765896428] [2024-10-31 22:14:09,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:09,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:10,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:10,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765896428] [2024-10-31 22:14:10,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765896428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:10,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:10,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:14:10,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69159662] [2024-10-31 22:14:10,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:10,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:14:10,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:10,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:14:10,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:14:11,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 361 [2024-10-31 22:14:11,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 321 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 267.3333333333333) internal successors, (1604), 6 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:11,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:11,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 361 [2024-10-31 22:14:11,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:17,651 INFO L124 PetriNetUnfolderBase]: 11565/37414 cut-off events. [2024-10-31 22:14:17,652 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-31 22:14:17,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55367 conditions, 37414 events. 11565/37414 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 553. Compared 437745 event pairs, 11564 based on Foata normal form. 0/34574 useless extension candidates. Maximal degree in co-relation 55324. Up to 17925 conditions per place. [2024-10-31 22:14:17,889 INFO L140 encePairwiseOnDemand]: 355/361 looper letters, 71 selfloop transitions, 5 changer transitions 0/320 dead transitions. [2024-10-31 22:14:17,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 320 transitions, 806 flow [2024-10-31 22:14:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:14:17,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:14:17,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1673 transitions. [2024-10-31 22:14:17,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7723915050784856 [2024-10-31 22:14:17,895 INFO L175 Difference]: Start difference. First operand has 333 places, 321 transitions, 656 flow. Second operand 6 states and 1673 transitions. [2024-10-31 22:14:17,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 320 transitions, 806 flow [2024-10-31 22:14:17,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 320 transitions, 796 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:14:17,907 INFO L231 Difference]: Finished difference. Result has 326 places, 320 transitions, 654 flow [2024-10-31 22:14:17,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=654, PETRI_PLACES=326, PETRI_TRANSITIONS=320} [2024-10-31 22:14:17,908 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, -25 predicate places. [2024-10-31 22:14:17,908 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 320 transitions, 654 flow [2024-10-31 22:14:17,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 267.3333333333333) internal successors, (1604), 6 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:17,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:17,910 INFO L204 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] [2024-10-31 22:14:17,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:14:17,910 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-31 22:14:17,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:17,911 INFO L85 PathProgramCache]: Analyzing trace with hash 872895120, now seen corresponding path program 1 times [2024-10-31 22:14:17,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:17,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985605268] [2024-10-31 22:14:17,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:17,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:18,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:18,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:18,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985605268] [2024-10-31 22:14:18,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985605268] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:18,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:18,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:18,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786036242] [2024-10-31 22:14:18,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:18,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:18,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:18,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:18,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:18,047 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 361 [2024-10-31 22:14:18,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 320 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:18,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:18,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 361 [2024-10-31 22:14:18,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:18,239 INFO L124 PetriNetUnfolderBase]: 35/845 cut-off events. [2024-10-31 22:14:18,239 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:14:18,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 934 conditions, 845 events. 35/845 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3696 event pairs, 32 based on Foata normal form. 0/763 useless extension candidates. Maximal degree in co-relation 884. Up to 73 conditions per place. [2024-10-31 22:14:18,245 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 15 selfloop transitions, 2 changer transitions 0/321 dead transitions. [2024-10-31 22:14:18,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 321 transitions, 690 flow [2024-10-31 22:14:18,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:14:18,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 999 transitions. [2024-10-31 22:14:18,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9224376731301939 [2024-10-31 22:14:18,249 INFO L175 Difference]: Start difference. First operand has 326 places, 320 transitions, 654 flow. Second operand 3 states and 999 transitions. [2024-10-31 22:14:18,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 321 transitions, 690 flow [2024-10-31 22:14:18,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 321 transitions, 680 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:14:18,257 INFO L231 Difference]: Finished difference. Result has 322 places, 319 transitions, 646 flow [2024-10-31 22:14:18,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=322, PETRI_TRANSITIONS=319} [2024-10-31 22:14:18,259 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, -29 predicate places. [2024-10-31 22:14:18,259 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 319 transitions, 646 flow [2024-10-31 22:14:18,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:18,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:18,260 INFO L204 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] [2024-10-31 22:14:18,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:14:18,261 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-31 22:14:18,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:18,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1210658904, now seen corresponding path program 1 times [2024-10-31 22:14:18,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:18,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829254466] [2024-10-31 22:14:18,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:18,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:18,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:18,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:18,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829254466] [2024-10-31 22:14:18,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829254466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:18,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:18,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:18,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32640375] [2024-10-31 22:14:18,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:18,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:18,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:18,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:18,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:18,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 361 [2024-10-31 22:14:18,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 319 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:18,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:18,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 361 [2024-10-31 22:14:18,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:18,551 INFO L124 PetriNetUnfolderBase]: 32/610 cut-off events. [2024-10-31 22:14:18,551 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:14:18,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 610 events. 32/610 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2060 event pairs, 6 based on Foata normal form. 0/554 useless extension candidates. Maximal degree in co-relation 546. Up to 50 conditions per place. [2024-10-31 22:14:18,668 INFO L140 encePairwiseOnDemand]: 359/361 looper letters, 14 selfloop transitions, 1 changer transitions 0/322 dead transitions. [2024-10-31 22:14:18,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 322 transitions, 682 flow [2024-10-31 22:14:18,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:18,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:14:18,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1009 transitions. [2024-10-31 22:14:18,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9316712834718375 [2024-10-31 22:14:18,672 INFO L175 Difference]: Start difference. First operand has 322 places, 319 transitions, 646 flow. Second operand 3 states and 1009 transitions. [2024-10-31 22:14:18,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 322 transitions, 682 flow [2024-10-31 22:14:18,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 322 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:14:18,677 INFO L231 Difference]: Finished difference. Result has 321 places, 318 transitions, 642 flow [2024-10-31 22:14:18,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=321, PETRI_TRANSITIONS=318} [2024-10-31 22:14:18,679 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, -30 predicate places. [2024-10-31 22:14:18,679 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 318 transitions, 642 flow [2024-10-31 22:14:18,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:18,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:18,680 INFO L204 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] [2024-10-31 22:14:18,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:14:18,681 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-31 22:14:18,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:18,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1386033533, now seen corresponding path program 1 times [2024-10-31 22:14:18,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:18,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957767421] [2024-10-31 22:14:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:18,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:18,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:18,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957767421] [2024-10-31 22:14:18,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957767421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:18,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:18,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:18,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708123833] [2024-10-31 22:14:18,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:18,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:18,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:18,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:18,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:18,779 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 361 [2024-10-31 22:14:18,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 318 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:18,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:18,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 361 [2024-10-31 22:14:18,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:19,069 INFO L124 PetriNetUnfolderBase]: 40/1329 cut-off events. [2024-10-31 22:14:19,073 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:14:19,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1431 conditions, 1329 events. 40/1329 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 6860 event pairs, 13 based on Foata normal form. 0/1206 useless extension candidates. Maximal degree in co-relation 1278. Up to 64 conditions per place. [2024-10-31 22:14:19,094 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 17 selfloop transitions, 2 changer transitions 0/321 dead transitions. [2024-10-31 22:14:19,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 321 transitions, 686 flow [2024-10-31 22:14:19,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:19,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:14:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1001 transitions. [2024-10-31 22:14:19,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9242843951985226 [2024-10-31 22:14:19,101 INFO L175 Difference]: Start difference. First operand has 321 places, 318 transitions, 642 flow. Second operand 3 states and 1001 transitions. [2024-10-31 22:14:19,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 321 transitions, 686 flow [2024-10-31 22:14:19,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 321 transitions, 685 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:14:19,116 INFO L231 Difference]: Finished difference. Result has 321 places, 317 transitions, 643 flow [2024-10-31 22:14:19,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=643, PETRI_PLACES=321, PETRI_TRANSITIONS=317} [2024-10-31 22:14:19,117 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, -30 predicate places. [2024-10-31 22:14:19,118 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 317 transitions, 643 flow [2024-10-31 22:14:19,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:19,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:19,123 INFO L204 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] [2024-10-31 22:14:19,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:14:19,123 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-31 22:14:19,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:19,124 INFO L85 PathProgramCache]: Analyzing trace with hash 263064093, now seen corresponding path program 1 times [2024-10-31 22:14:19,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:19,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541921726] [2024-10-31 22:14:19,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:19,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:19,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:19,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:19,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541921726] [2024-10-31 22:14:19,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541921726] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:19,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:19,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:14:19,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128951455] [2024-10-31 22:14:19,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:19,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:14:19,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:19,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:14:19,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:14:20,361 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 361 [2024-10-31 22:14:20,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 317 transitions, 643 flow. Second operand has 6 states, 6 states have (on average 266.6666666666667) internal successors, (1600), 6 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:20,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:20,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 361 [2024-10-31 22:14:20,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand