./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme --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 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:43:55,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:43:55,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:43:55,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:43:55,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:43:55,962 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:43:55,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:43:55,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:43:55,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:43:55,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:43:55,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:43:55,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:43:55,972 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:43:55,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:43:55,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:43:55,975 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:43:55,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:43:55,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:43:55,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:43:55,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:43:55,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:43:55,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:43:55,979 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:43:55,979 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:43:55,980 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:43:55,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:43:55,981 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:43:55,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:43:55,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:43:55,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:43:55,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:55,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:43:55,985 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:43:55,985 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:43:55,985 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:43:55,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:43:55,986 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:43:55,986 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:43:55,986 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:43:55,986 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:43:55,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:43:55,987 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_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc [2023-11-26 11:43:56,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:43:56,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:43:56,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:43:56,412 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:43:56,412 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:43:56,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2023-11-26 11:43:59,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:44:00,023 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:44:00,023 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2023-11-26 11:44:00,081 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/data/7085f481d/c5fe0c4c127e4b45a275190296f3c3df/FLAG5cd18c88d [2023-11-26 11:44:00,100 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/data/7085f481d/c5fe0c4c127e4b45a275190296f3c3df [2023-11-26 11:44:00,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:44:00,108 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:44:00,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:00,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:44:00,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:44:00,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:00" (1/1) ... [2023-11-26 11:44:00,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2086fd62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:00, skipping insertion in model container [2023-11-26 11:44:00,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:00" (1/1) ... [2023-11-26 11:44:00,242 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:44:00,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:00,975 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:44:01,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:01,186 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:44:01,187 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:44:01,195 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:44:01,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01 WrapperNode [2023-11-26 11:44:01,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:01,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:01,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:44:01,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:44:01,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (1/1) ... [2023-11-26 11:44:01,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (1/1) ... [2023-11-26 11:44:01,336 INFO L138 Inliner]: procedures = 248, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 244 [2023-11-26 11:44:01,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:01,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:44:01,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:44:01,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:44:01,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (1/1) ... [2023-11-26 11:44:01,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (1/1) ... [2023-11-26 11:44:01,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (1/1) ... [2023-11-26 11:44:01,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (1/1) ... [2023-11-26 11:44:01,402 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (1/1) ... [2023-11-26 11:44:01,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (1/1) ... [2023-11-26 11:44:01,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (1/1) ... [2023-11-26 11:44:01,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (1/1) ... [2023-11-26 11:44:01,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:44:01,424 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:44:01,424 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:44:01,424 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:44:01,425 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (1/1) ... [2023-11-26 11:44:01,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:01,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:01,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:44:01,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b83bde-9ad3-43fe-838c-b25779b19332/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:44:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-26 11:44:01,508 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-26 11:44:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:44:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:44:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:44:01,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:44:01,509 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:44:01,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:44:01,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:44:01,509 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:44:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:44:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 11:44:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:44:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:44:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:44:01,512 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:44:01,815 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:44:01,817 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:44:02,272 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:44:02,445 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:44:02,445 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:44:02,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:02 BoogieIcfgContainer [2023-11-26 11:44:02,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:44:02,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:44:02,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:44:02,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:44:02,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:44:00" (1/3) ... [2023-11-26 11:44:02,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4009d86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:02, skipping insertion in model container [2023-11-26 11:44:02,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:01" (2/3) ... [2023-11-26 11:44:02,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4009d86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:02, skipping insertion in model container [2023-11-26 11:44:02,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:02" (3/3) ... [2023-11-26 11:44:02,467 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-11-26 11:44:02,475 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:44:02,483 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:44:02,483 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-11-26 11:44:02,483 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:44:02,581 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 11:44:02,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 271 transitions, 556 flow [2023-11-26 11:44:02,745 INFO L124 PetriNetUnfolderBase]: 14/359 cut-off events. [2023-11-26 11:44:02,745 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:44:02,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 359 events. 14/359 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 744 event pairs, 0 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 176. Up to 4 conditions per place. [2023-11-26 11:44:02,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 271 transitions, 556 flow [2023-11-26 11:44:02,762 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 268 transitions, 548 flow [2023-11-26 11:44:02,771 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:44:02,778 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;@5bab1e7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:44:02,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-26 11:44:02,796 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:44:02,797 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2023-11-26 11:44:02,797 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:44:02,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:02,798 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] [2023-11-26 11:44:02,798 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 11:44:02,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:02,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1000694706, now seen corresponding path program 1 times [2023-11-26 11:44:02,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:02,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939663515] [2023-11-26 11:44:02,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:02,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:03,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:03,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939663515] [2023-11-26 11:44:03,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939663515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:03,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:03,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:03,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297934112] [2023-11-26 11:44:03,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:03,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:03,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:03,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:03,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:04,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 271 [2023-11-26 11:44:04,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 268 transitions, 548 flow. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:04,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:04,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 271 [2023-11-26 11:44:04,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:06,063 INFO L124 PetriNetUnfolderBase]: 1556/4822 cut-off events. [2023-11-26 11:44:06,063 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-11-26 11:44:06,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7413 conditions, 4822 events. 1556/4822 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 39590 event pairs, 1555 based on Foata normal form. 152/4628 useless extension candidates. Maximal degree in co-relation 7041. Up to 2562 conditions per place. [2023-11-26 11:44:06,120 INFO L140 encePairwiseOnDemand]: 247/271 looper letters, 55 selfloop transitions, 5 changer transitions 6/237 dead transitions. [2023-11-26 11:44:06,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 237 transitions, 606 flow [2023-11-26 11:44:06,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:06,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:06,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1207 transitions. [2023-11-26 11:44:06,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7423124231242313 [2023-11-26 11:44:06,147 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1207 transitions. [2023-11-26 11:44:06,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1207 transitions. [2023-11-26 11:44:06,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:06,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1207 transitions. [2023-11-26 11:44:06,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.16666666666666) internal successors, (1207), 6 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:06,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:06,180 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:06,182 INFO L175 Difference]: Start difference. First operand has 265 places, 268 transitions, 548 flow. Second operand 6 states and 1207 transitions. [2023-11-26 11:44:06,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 237 transitions, 606 flow [2023-11-26 11:44:06,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 237 transitions, 598 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:44:06,203 INFO L231 Difference]: Finished difference. Result has 243 places, 231 transitions, 476 flow [2023-11-26 11:44:06,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=476, PETRI_PLACES=243, PETRI_TRANSITIONS=231} [2023-11-26 11:44:06,211 INFO L281 CegarLoopForPetriNet]: 265 programPoint places, -22 predicate places. [2023-11-26 11:44:06,212 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 231 transitions, 476 flow [2023-11-26 11:44:06,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:06,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:06,214 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] [2023-11-26 11:44:06,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:44:06,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 11:44:06,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash -452712710, now seen corresponding path program 1 times [2023-11-26 11:44:06,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:06,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118072053] [2023-11-26 11:44:06,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:06,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:06,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:06,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:06,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118072053] [2023-11-26 11:44:06,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118072053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:06,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:06,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:06,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171362718] [2023-11-26 11:44:06,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:06,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:06,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:06,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:06,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:07,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 271 [2023-11-26 11:44:07,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 231 transitions, 476 flow. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:07,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:07,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 271 [2023-11-26 11:44:07,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:08,719 INFO L124 PetriNetUnfolderBase]: 1556/4815 cut-off events. [2023-11-26 11:44:08,719 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 11:44:08,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7396 conditions, 4815 events. 1556/4815 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 39495 event pairs, 1555 based on Foata normal form. 0/4472 useless extension candidates. Maximal degree in co-relation 7349. Up to 2562 conditions per place. [2023-11-26 11:44:08,758 INFO L140 encePairwiseOnDemand]: 265/271 looper letters, 55 selfloop transitions, 5 changer transitions 0/230 dead transitions. [2023-11-26 11:44:08,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 230 transitions, 594 flow [2023-11-26 11:44:08,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:08,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:08,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1189 transitions. [2023-11-26 11:44:08,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7312423124231242 [2023-11-26 11:44:08,764 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1189 transitions. [2023-11-26 11:44:08,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1189 transitions. [2023-11-26 11:44:08,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:08,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1189 transitions. [2023-11-26 11:44:08,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.16666666666666) internal successors, (1189), 6 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,777 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,777 INFO L175 Difference]: Start difference. First operand has 243 places, 231 transitions, 476 flow. Second operand 6 states and 1189 transitions. [2023-11-26 11:44:08,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 230 transitions, 594 flow [2023-11-26 11:44:08,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 230 transitions, 584 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:44:08,785 INFO L231 Difference]: Finished difference. Result has 236 places, 230 transitions, 474 flow [2023-11-26 11:44:08,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=474, PETRI_PLACES=236, PETRI_TRANSITIONS=230} [2023-11-26 11:44:08,787 INFO L281 CegarLoopForPetriNet]: 265 programPoint places, -29 predicate places. [2023-11-26 11:44:08,788 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 230 transitions, 474 flow [2023-11-26 11:44:08,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:08,790 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] [2023-11-26 11:44:08,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:44:08,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 11:44:08,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:08,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1767271726, now seen corresponding path program 1 times [2023-11-26 11:44:08,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:08,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803402892] [2023-11-26 11:44:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:08,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:09,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:09,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803402892] [2023-11-26 11:44:09,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803402892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:09,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:09,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:09,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159180059] [2023-11-26 11:44:09,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:09,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:09,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:09,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:09,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:09,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 271 [2023-11-26 11:44:09,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 230 transitions, 474 flow. Second operand has 6 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:09,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:09,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 271 [2023-11-26 11:44:09,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:11,783 INFO L124 PetriNetUnfolderBase]: 1748/5063 cut-off events. [2023-11-26 11:44:11,783 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-26 11:44:11,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7952 conditions, 5063 events. 1748/5063 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 41047 event pairs, 1287 based on Foata normal form. 0/4767 useless extension candidates. Maximal degree in co-relation 7889. Up to 2538 conditions per place. [2023-11-26 11:44:11,824 INFO L140 encePairwiseOnDemand]: 258/271 looper letters, 69 selfloop transitions, 30 changer transitions 6/275 dead transitions. [2023-11-26 11:44:11,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 275 transitions, 768 flow [2023-11-26 11:44:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:11,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:11,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2023-11-26 11:44:11,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7718327183271833 [2023-11-26 11:44:11,829 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2023-11-26 11:44:11,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2023-11-26 11:44:11,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:11,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2023-11-26 11:44:11,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:11,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:11,842 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:11,842 INFO L175 Difference]: Start difference. First operand has 236 places, 230 transitions, 474 flow. Second operand 6 states and 1255 transitions. [2023-11-26 11:44:11,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 275 transitions, 768 flow [2023-11-26 11:44:11,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 275 transitions, 758 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:44:11,851 INFO L231 Difference]: Finished difference. Result has 241 places, 253 transitions, 654 flow [2023-11-26 11:44:11,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=654, PETRI_PLACES=241, PETRI_TRANSITIONS=253} [2023-11-26 11:44:11,853 INFO L281 CegarLoopForPetriNet]: 265 programPoint places, -24 predicate places. [2023-11-26 11:44:11,853 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 253 transitions, 654 flow [2023-11-26 11:44:11,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:11,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:11,855 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] [2023-11-26 11:44:11,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:44:11,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 11:44:11,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash -503815121, now seen corresponding path program 1 times [2023-11-26 11:44:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:11,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521629418] [2023-11-26 11:44:11,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:11,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:12,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:12,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521629418] [2023-11-26 11:44:12,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521629418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:12,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:12,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:12,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056519311] [2023-11-26 11:44:12,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:12,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:44:12,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:12,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:44:12,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:12,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 271 [2023-11-26 11:44:12,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 253 transitions, 654 flow. Second operand has 5 states, 5 states have (on average 221.6) internal successors, (1108), 5 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:12,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:12,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 271 [2023-11-26 11:44:12,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:13,016 INFO L124 PetriNetUnfolderBase]: 1015/3998 cut-off events. [2023-11-26 11:44:13,016 INFO L125 PetriNetUnfolderBase]: For 791/794 co-relation queries the response was YES. [2023-11-26 11:44:13,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6895 conditions, 3998 events. 1015/3998 cut-off events. For 791/794 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 33112 event pairs, 735 based on Foata normal form. 1/3761 useless extension candidates. Maximal degree in co-relation 4566. Up to 1438 conditions per place. [2023-11-26 11:44:13,049 INFO L140 encePairwiseOnDemand]: 266/271 looper letters, 50 selfloop transitions, 4 changer transitions 0/256 dead transitions. [2023-11-26 11:44:13,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 256 transitions, 768 flow [2023-11-26 11:44:13,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:13,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:13,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1351 transitions. [2023-11-26 11:44:13,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8308733087330873 [2023-11-26 11:44:13,055 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1351 transitions. [2023-11-26 11:44:13,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1351 transitions. [2023-11-26 11:44:13,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:13,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1351 transitions. [2023-11-26 11:44:13,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 225.16666666666666) internal successors, (1351), 6 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,067 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,067 INFO L175 Difference]: Start difference. First operand has 241 places, 253 transitions, 654 flow. Second operand 6 states and 1351 transitions. [2023-11-26 11:44:13,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 256 transitions, 768 flow [2023-11-26 11:44:13,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 256 transitions, 768 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:44:13,081 INFO L231 Difference]: Finished difference. Result has 244 places, 256 transitions, 683 flow [2023-11-26 11:44:13,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=683, PETRI_PLACES=244, PETRI_TRANSITIONS=256} [2023-11-26 11:44:13,084 INFO L281 CegarLoopForPetriNet]: 265 programPoint places, -21 predicate places. [2023-11-26 11:44:13,084 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 256 transitions, 683 flow [2023-11-26 11:44:13,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 221.6) internal successors, (1108), 5 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:13,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:13,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:44:13,086 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 11:44:13,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:13,087 INFO L85 PathProgramCache]: Analyzing trace with hash -191524713, now seen corresponding path program 1 times [2023-11-26 11:44:13,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:13,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047093776] [2023-11-26 11:44:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:13,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:13,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047093776] [2023-11-26 11:44:13,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047093776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:13,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:13,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:13,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989843734] [2023-11-26 11:44:13,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:13,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:13,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:13,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:13,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:14,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 271 [2023-11-26 11:44:14,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 256 transitions, 683 flow. Second operand has 6 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:14,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:14,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 271 [2023-11-26 11:44:14,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:15,683 INFO L124 PetriNetUnfolderBase]: 1993/5196 cut-off events. [2023-11-26 11:44:15,684 INFO L125 PetriNetUnfolderBase]: For 1238/1240 co-relation queries the response was YES. [2023-11-26 11:44:15,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10339 conditions, 5196 events. 1993/5196 cut-off events. For 1238/1240 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 40274 event pairs, 1271 based on Foata normal form. 0/4928 useless extension candidates. Maximal degree in co-relation 10236. Up to 2743 conditions per place. [2023-11-26 11:44:15,736 INFO L140 encePairwiseOnDemand]: 258/271 looper letters, 92 selfloop transitions, 30 changer transitions 12/301 dead transitions. [2023-11-26 11:44:15,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 301 transitions, 1067 flow [2023-11-26 11:44:15,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:15,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:15,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1252 transitions. [2023-11-26 11:44:15,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7699876998769988 [2023-11-26 11:44:15,746 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1252 transitions. [2023-11-26 11:44:15,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1252 transitions. [2023-11-26 11:44:15,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:15,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1252 transitions. [2023-11-26 11:44:15,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.66666666666666) internal successors, (1252), 6 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:15,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:15,758 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:15,758 INFO L175 Difference]: Start difference. First operand has 244 places, 256 transitions, 683 flow. Second operand 6 states and 1252 transitions. [2023-11-26 11:44:15,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 301 transitions, 1067 flow [2023-11-26 11:44:15,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 301 transitions, 1066 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:44:15,773 INFO L231 Difference]: Finished difference. Result has 253 places, 273 transitions, 908 flow [2023-11-26 11:44:15,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=908, PETRI_PLACES=253, PETRI_TRANSITIONS=273} [2023-11-26 11:44:15,776 INFO L281 CegarLoopForPetriNet]: 265 programPoint places, -12 predicate places. [2023-11-26 11:44:15,777 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 273 transitions, 908 flow [2023-11-26 11:44:15,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:15,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:15,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:15,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:44:15,779 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 11:44:15,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:15,780 INFO L85 PathProgramCache]: Analyzing trace with hash -604008439, now seen corresponding path program 1 times [2023-11-26 11:44:15,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:15,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997633213] [2023-11-26 11:44:15,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:15,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:16,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:16,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:16,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997633213] [2023-11-26 11:44:16,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997633213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:16,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:16,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:16,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87969020] [2023-11-26 11:44:16,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:16,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:16,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:16,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:16,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:17,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 271 [2023-11-26 11:44:17,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 273 transitions, 908 flow. Second operand has 6 states, 6 states have (on average 204.33333333333334) internal successors, (1226), 6 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:17,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:17,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 271 [2023-11-26 11:44:17,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:18,801 INFO L124 PetriNetUnfolderBase]: 1873/5103 cut-off events. [2023-11-26 11:44:18,801 INFO L125 PetriNetUnfolderBase]: For 2834/2969 co-relation queries the response was YES. [2023-11-26 11:44:18,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11913 conditions, 5103 events. 1873/5103 cut-off events. For 2834/2969 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 41068 event pairs, 883 based on Foata normal form. 0/4920 useless extension candidates. Maximal degree in co-relation 11491. Up to 2463 conditions per place. [2023-11-26 11:44:18,870 INFO L140 encePairwiseOnDemand]: 255/271 looper letters, 115 selfloop transitions, 26 changer transitions 0/317 dead transitions. [2023-11-26 11:44:18,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 317 transitions, 1378 flow [2023-11-26 11:44:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:18,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:18,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1297 transitions. [2023-11-26 11:44:18,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7976629766297663 [2023-11-26 11:44:18,877 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1297 transitions. [2023-11-26 11:44:18,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1297 transitions. [2023-11-26 11:44:18,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:18,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1297 transitions. [2023-11-26 11:44:18,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 216.16666666666666) internal successors, (1297), 6 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:18,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:18,889 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:18,889 INFO L175 Difference]: Start difference. First operand has 253 places, 273 transitions, 908 flow. Second operand 6 states and 1297 transitions. [2023-11-26 11:44:18,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 317 transitions, 1378 flow [2023-11-26 11:44:18,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 317 transitions, 1330 flow, removed 24 selfloop flow, removed 0 redundant places. [2023-11-26 11:44:18,914 INFO L231 Difference]: Finished difference. Result has 250 places, 293 transitions, 1092 flow [2023-11-26 11:44:18,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1092, PETRI_PLACES=250, PETRI_TRANSITIONS=293} [2023-11-26 11:44:18,915 INFO L281 CegarLoopForPetriNet]: 265 programPoint places, -15 predicate places. [2023-11-26 11:44:18,916 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 293 transitions, 1092 flow [2023-11-26 11:44:18,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 204.33333333333334) internal successors, (1226), 6 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:18,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:18,917 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:18,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:44:18,918 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 11:44:18,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:18,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1830869973, now seen corresponding path program 1 times [2023-11-26 11:44:18,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:18,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955588690] [2023-11-26 11:44:18,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:18,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:19,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:19,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955588690] [2023-11-26 11:44:19,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955588690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:19,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:19,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:19,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262978000] [2023-11-26 11:44:19,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:19,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:19,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:19,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:19,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:20,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 271 [2023-11-26 11:44:20,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 293 transitions, 1092 flow. Second operand has 6 states, 6 states have (on average 211.33333333333334) internal successors, (1268), 6 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:20,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:20,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 271 [2023-11-26 11:44:20,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:21,469 INFO L124 PetriNetUnfolderBase]: 2257/5768 cut-off events. [2023-11-26 11:44:21,469 INFO L125 PetriNetUnfolderBase]: For 5000/5397 co-relation queries the response was YES. [2023-11-26 11:44:21,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14990 conditions, 5768 events. 2257/5768 cut-off events. For 5000/5397 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 47538 event pairs, 1074 based on Foata normal form. 1/5573 useless extension candidates. Maximal degree in co-relation 13116. Up to 3095 conditions per place. [2023-11-26 11:44:21,549 INFO L140 encePairwiseOnDemand]: 260/271 looper letters, 137 selfloop transitions, 22 changer transitions 0/340 dead transitions. [2023-11-26 11:44:21,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 340 transitions, 1642 flow [2023-11-26 11:44:21,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:21,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:21,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1337 transitions. [2023-11-26 11:44:21,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8222632226322263 [2023-11-26 11:44:21,554 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1337 transitions. [2023-11-26 11:44:21,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1337 transitions. [2023-11-26 11:44:21,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:21,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1337 transitions. [2023-11-26 11:44:21,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 222.83333333333334) internal successors, (1337), 6 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:21,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:21,565 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:21,565 INFO L175 Difference]: Start difference. First operand has 250 places, 293 transitions, 1092 flow. Second operand 6 states and 1337 transitions. [2023-11-26 11:44:21,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 340 transitions, 1642 flow [2023-11-26 11:44:21,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 340 transitions, 1642 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:44:21,590 INFO L231 Difference]: Finished difference. Result has 260 places, 314 transitions, 1346 flow [2023-11-26 11:44:21,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=1092, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1346, PETRI_PLACES=260, PETRI_TRANSITIONS=314} [2023-11-26 11:44:21,591 INFO L281 CegarLoopForPetriNet]: 265 programPoint places, -5 predicate places. [2023-11-26 11:44:21,591 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 314 transitions, 1346 flow [2023-11-26 11:44:21,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.33333333333334) internal successors, (1268), 6 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:21,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:21,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:21,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:44:21,595 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 11:44:21,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:21,595 INFO L85 PathProgramCache]: Analyzing trace with hash -929544753, now seen corresponding path program 1 times [2023-11-26 11:44:21,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:21,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859642828] [2023-11-26 11:44:21,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:21,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:21,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:21,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859642828] [2023-11-26 11:44:21,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859642828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:21,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:21,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:21,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972136824] [2023-11-26 11:44:21,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:21,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:44:21,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:21,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:44:21,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:21,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 271 [2023-11-26 11:44:21,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 314 transitions, 1346 flow. Second operand has 5 states, 5 states have (on average 222.2) internal successors, (1111), 5 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:21,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:21,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 271 [2023-11-26 11:44:21,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:22,646 INFO L124 PetriNetUnfolderBase]: 865/2552 cut-off events. [2023-11-26 11:44:22,646 INFO L125 PetriNetUnfolderBase]: For 4078/4082 co-relation queries the response was YES. [2023-11-26 11:44:22,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6944 conditions, 2552 events. 865/2552 cut-off events. For 4078/4082 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 18004 event pairs, 274 based on Foata normal form. 36/2541 useless extension candidates. Maximal degree in co-relation 6840. Up to 652 conditions per place. [2023-11-26 11:44:22,675 INFO L140 encePairwiseOnDemand]: 266/271 looper letters, 83 selfloop transitions, 4 changer transitions 3/273 dead transitions. [2023-11-26 11:44:22,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 273 transitions, 1238 flow [2023-11-26 11:44:22,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:22,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:22,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1386 transitions. [2023-11-26 11:44:22,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8523985239852399 [2023-11-26 11:44:22,681 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1386 transitions. [2023-11-26 11:44:22,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1386 transitions. [2023-11-26 11:44:22,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:22,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1386 transitions. [2023-11-26 11:44:22,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:22,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:22,694 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:22,695 INFO L175 Difference]: Start difference. First operand has 260 places, 314 transitions, 1346 flow. Second operand 6 states and 1386 transitions. [2023-11-26 11:44:22,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 273 transitions, 1238 flow [2023-11-26 11:44:22,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 273 transitions, 1142 flow, removed 15 selfloop flow, removed 24 redundant places. [2023-11-26 11:44:22,716 INFO L231 Difference]: Finished difference. Result has 239 places, 230 transitions, 733 flow [2023-11-26 11:44:22,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=733, PETRI_PLACES=239, PETRI_TRANSITIONS=230} [2023-11-26 11:44:22,720 INFO L281 CegarLoopForPetriNet]: 265 programPoint places, -26 predicate places. [2023-11-26 11:44:22,720 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 230 transitions, 733 flow [2023-11-26 11:44:22,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 222.2) internal successors, (1111), 5 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:22,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:22,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:22,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:44:22,722 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 11:44:22,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:22,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1163494748, now seen corresponding path program 1 times [2023-11-26 11:44:22,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:22,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045352191] [2023-11-26 11:44:22,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:22,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:23,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:23,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045352191] [2023-11-26 11:44:23,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045352191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:23,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:23,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:23,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970476092] [2023-11-26 11:44:23,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:23,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:23,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:23,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:23,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:23,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 271 [2023-11-26 11:44:23,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 230 transitions, 733 flow. Second operand has 6 states, 6 states have (on average 204.33333333333334) internal successors, (1226), 6 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:23,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:23,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 271 [2023-11-26 11:44:23,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:24,385 INFO L124 PetriNetUnfolderBase]: 558/1793 cut-off events. [2023-11-26 11:44:24,385 INFO L125 PetriNetUnfolderBase]: For 2597/2859 co-relation queries the response was YES. [2023-11-26 11:44:24,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4794 conditions, 1793 events. 558/1793 cut-off events. For 2597/2859 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 11199 event pairs, 398 based on Foata normal form. 2/1716 useless extension candidates. Maximal degree in co-relation 4614. Up to 881 conditions per place. [2023-11-26 11:44:24,404 INFO L140 encePairwiseOnDemand]: 260/271 looper letters, 43 selfloop transitions, 0 changer transitions 79/229 dead transitions. [2023-11-26 11:44:24,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 229 transitions, 850 flow [2023-11-26 11:44:24,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:24,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1251 transitions. [2023-11-26 11:44:24,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7693726937269373 [2023-11-26 11:44:24,410 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1251 transitions. [2023-11-26 11:44:24,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1251 transitions. [2023-11-26 11:44:24,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:24,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1251 transitions. [2023-11-26 11:44:24,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.5) internal successors, (1251), 6 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:24,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:24,421 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:24,421 INFO L175 Difference]: Start difference. First operand has 239 places, 230 transitions, 733 flow. Second operand 6 states and 1251 transitions. [2023-11-26 11:44:24,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 229 transitions, 850 flow [2023-11-26 11:44:24,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 229 transitions, 825 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-11-26 11:44:24,431 INFO L231 Difference]: Finished difference. Result has 232 places, 150 transitions, 515 flow [2023-11-26 11:44:24,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=515, PETRI_PLACES=232, PETRI_TRANSITIONS=150} [2023-11-26 11:44:24,433 INFO L281 CegarLoopForPetriNet]: 265 programPoint places, -33 predicate places. [2023-11-26 11:44:24,433 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 150 transitions, 515 flow [2023-11-26 11:44:24,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 204.33333333333334) internal successors, (1226), 6 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:24,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:24,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:24,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:44:24,445 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 11:44:24,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:24,445 INFO L85 PathProgramCache]: Analyzing trace with hash 672458402, now seen corresponding path program 1 times [2023-11-26 11:44:24,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:24,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274063695] [2023-11-26 11:44:24,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:24,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:25,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:25,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:25,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274063695] [2023-11-26 11:44:25,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274063695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:25,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:25,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-11-26 11:44:25,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077374772] [2023-11-26 11:44:25,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:25,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-26 11:44:25,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:25,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-26 11:44:25,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-26 11:44:31,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 271 [2023-11-26 11:44:31,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 150 transitions, 515 flow. Second operand has 19 states, 19 states have (on average 188.05263157894737) internal successors, (3573), 19 states have internal predecessors, (3573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:31,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:31,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 271 [2023-11-26 11:44:31,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:35,460 INFO L124 PetriNetUnfolderBase]: 2595/5717 cut-off events. [2023-11-26 11:44:35,460 INFO L125 PetriNetUnfolderBase]: For 6277/6277 co-relation queries the response was YES. [2023-11-26 11:44:35,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15539 conditions, 5717 events. 2595/5717 cut-off events. For 6277/6277 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 43228 event pairs, 143 based on Foata normal form. 24/5681 useless extension candidates. Maximal degree in co-relation 15525. Up to 1192 conditions per place. [2023-11-26 11:44:35,519 INFO L140 encePairwiseOnDemand]: 247/271 looper letters, 390 selfloop transitions, 117 changer transitions 0/588 dead transitions. [2023-11-26 11:44:35,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 588 transitions, 4095 flow [2023-11-26 11:44:35,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-26 11:44:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-11-26 11:44:35,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 8948 transitions. [2023-11-26 11:44:35,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7177923953152575 [2023-11-26 11:44:35,548 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 8948 transitions. [2023-11-26 11:44:35,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 8948 transitions. [2023-11-26 11:44:35,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:35,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 8948 transitions. [2023-11-26 11:44:35,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 194.52173913043478) internal successors, (8948), 46 states have internal predecessors, (8948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:35,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 271.0) internal successors, (12737), 47 states have internal predecessors, (12737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:35,612 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 271.0) internal successors, (12737), 47 states have internal predecessors, (12737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:35,612 INFO L175 Difference]: Start difference. First operand has 232 places, 150 transitions, 515 flow. Second operand 46 states and 8948 transitions. [2023-11-26 11:44:35,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 588 transitions, 4095 flow [2023-11-26 11:44:35,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 588 transitions, 3458 flow, removed 317 selfloop flow, removed 5 redundant places. [2023-11-26 11:44:35,659 INFO L231 Difference]: Finished difference. Result has 208 places, 252 transitions, 1405 flow [2023-11-26 11:44:35,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=1405, PETRI_PLACES=208, PETRI_TRANSITIONS=252} [2023-11-26 11:44:35,661 INFO L281 CegarLoopForPetriNet]: 265 programPoint places, -57 predicate places. [2023-11-26 11:44:35,661 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 252 transitions, 1405 flow [2023-11-26 11:44:35,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 188.05263157894737) internal successors, (3573), 19 states have internal predecessors, (3573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:35,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:35,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:35,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:44:35,663 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 11:44:35,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:35,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1262035916, now seen corresponding path program 2 times [2023-11-26 11:44:35,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:35,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835748557] [2023-11-26 11:44:35,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:35,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:37,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:37,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835748557] [2023-11-26 11:44:37,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835748557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:37,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:37,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-26 11:44:37,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138567383] [2023-11-26 11:44:37,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:37,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-26 11:44:37,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-26 11:44:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-11-26 11:44:42,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 271 [2023-11-26 11:44:42,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 252 transitions, 1405 flow. Second operand has 20 states, 20 states have (on average 188.0) internal successors, (3760), 20 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:42,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:42,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 271 [2023-11-26 11:44:42,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand