./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl --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 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:24:59,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:24:59,437 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:24:59,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:24:59,449 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:24:59,498 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:24:59,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:24:59,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:24:59,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:24:59,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:24:59,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:24:59,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:24:59,511 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:24:59,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:24:59,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:24:59,514 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:24:59,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:24:59,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:24:59,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:24:59,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:24:59,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:24:59,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:24:59,517 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:24:59,518 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:24:59,518 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:24:59,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:24:59,519 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:24:59,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:24:59,521 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:24:59,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:24:59,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:24:59,523 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:24:59,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:24:59,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:24:59,524 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:24:59,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:24:59,525 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:24:59,525 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:24:59,525 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:24:59,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:24:59,526 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:24:59,526 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_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2023-11-12 02:24:59,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:24:59,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:24:59,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:24:59,834 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:24:59,835 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:24:59,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-11-12 02:25:03,097 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:25:03,396 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:25:03,396 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-11-12 02:25:03,425 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/data/74afba479/828ced959b6444a9a62e64dfa8e97827/FLAG4429f0b78 [2023-11-12 02:25:03,439 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/data/74afba479/828ced959b6444a9a62e64dfa8e97827 [2023-11-12 02:25:03,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:25:03,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:25:03,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:03,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:25:03,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:25:03,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5f6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03, skipping insertion in model container [2023-11-12 02:25:03,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,502 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:25:04,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:04,112 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:25:04,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:04,263 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:25:04,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04 WrapperNode [2023-11-12 02:25:04,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:04,266 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:04,266 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:25:04,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:25:04,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (1/1) ... [2023-11-12 02:25:04,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (1/1) ... [2023-11-12 02:25:04,336 INFO L138 Inliner]: procedures = 266, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-11-12 02:25:04,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:04,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:25:04,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:25:04,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:25:04,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (1/1) ... [2023-11-12 02:25:04,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (1/1) ... [2023-11-12 02:25:04,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (1/1) ... [2023-11-12 02:25:04,359 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (1/1) ... [2023-11-12 02:25:04,370 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (1/1) ... [2023-11-12 02:25:04,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (1/1) ... [2023-11-12 02:25:04,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (1/1) ... [2023-11-12 02:25:04,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (1/1) ... [2023-11-12 02:25:04,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:25:04,381 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:25:04,381 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:25:04,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:25:04,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (1/1) ... [2023-11-12 02:25:04,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:04,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:04,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:25:04,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed8bd4-d4ec-4aaa-a63b-437b4f750f25/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:25:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:25:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:25:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:25:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:25:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:25:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:25:04,488 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:25:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:25:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:25:04,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:25:04,493 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:25:04,716 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:25:04,719 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:25:04,948 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:25:04,956 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:25:04,956 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:25:04,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:04 BoogieIcfgContainer [2023-11-12 02:25:04,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:25:04,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:25:04,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:25:04,967 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:25:04,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:25:03" (1/3) ... [2023-11-12 02:25:04,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4601affa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:04, skipping insertion in model container [2023-11-12 02:25:04,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:04" (2/3) ... [2023-11-12 02:25:04,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4601affa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:04, skipping insertion in model container [2023-11-12 02:25:04,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:04" (3/3) ... [2023-11-12 02:25:04,972 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2023-11-12 02:25:04,982 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:25:04,991 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:25:04,991 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 02:25:04,992 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:25:05,069 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:25:05,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 166 flow [2023-11-12 02:25:05,163 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2023-11-12 02:25:05,165 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:05,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-11-12 02:25:05,169 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 166 flow [2023-11-12 02:25:05,174 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2023-11-12 02:25:05,178 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:25:05,190 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 80 transitions, 163 flow [2023-11-12 02:25:05,193 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 80 transitions, 163 flow [2023-11-12 02:25:05,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 163 flow [2023-11-12 02:25:05,220 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2023-11-12 02:25:05,220 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:05,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-11-12 02:25:05,222 INFO L119 LiptonReduction]: Number of co-enabled transitions 750 [2023-11-12 02:25:09,895 INFO L134 LiptonReduction]: Checked pairs total: 2878 [2023-11-12 02:25:09,895 INFO L136 LiptonReduction]: Total number of compositions: 60 [2023-11-12 02:25:09,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:25:09,918 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;@3b7b890a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:25:09,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 02:25:09,925 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:25:09,926 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-11-12 02:25:09,926 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:09,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:09,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:09,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:09,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:09,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1585115475, now seen corresponding path program 1 times [2023-11-12 02:25:09,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:09,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106179989] [2023-11-12 02:25:09,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:09,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:10,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:10,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106179989] [2023-11-12 02:25:10,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106179989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:10,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:10,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:25:10,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595812512] [2023-11-12 02:25:10,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:10,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:25:10,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:10,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:25:10,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:25:11,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 141 [2023-11-12 02:25:11,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:11,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:11,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 141 [2023-11-12 02:25:11,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:11,291 INFO L124 PetriNetUnfolderBase]: 89/209 cut-off events. [2023-11-12 02:25:11,291 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:11,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 209 events. 89/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 780 event pairs, 34 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 406. Up to 150 conditions per place. [2023-11-12 02:25:11,296 INFO L140 encePairwiseOnDemand]: 131/141 looper letters, 26 selfloop transitions, 21 changer transitions 8/56 dead transitions. [2023-11-12 02:25:11,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 56 transitions, 225 flow [2023-11-12 02:25:11,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:25:11,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:25:11,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2023-11-12 02:25:11,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.541371158392435 [2023-11-12 02:25:11,315 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 458 transitions. [2023-11-12 02:25:11,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 458 transitions. [2023-11-12 02:25:11,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:11,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 458 transitions. [2023-11-12 02:25:11,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:11,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:11,333 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:11,335 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 458 transitions. [2023-11-12 02:25:11,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 56 transitions, 225 flow [2023-11-12 02:25:11,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 56 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:25:11,340 INFO L231 Difference]: Finished difference. Result has 32 places, 40 transitions, 166 flow [2023-11-12 02:25:11,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=32, PETRI_TRANSITIONS=40} [2023-11-12 02:25:11,346 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2023-11-12 02:25:11,346 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 40 transitions, 166 flow [2023-11-12 02:25:11,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:11,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:11,347 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:11,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:25:11,348 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:11,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:11,349 INFO L85 PathProgramCache]: Analyzing trace with hash 676363950, now seen corresponding path program 1 times [2023-11-12 02:25:11,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:11,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902273526] [2023-11-12 02:25:11,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:11,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:11,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:11,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902273526] [2023-11-12 02:25:11,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902273526] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:11,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:11,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:25:11,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090612671] [2023-11-12 02:25:11,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:11,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:25:11,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:11,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:25:11,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:25:11,735 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 141 [2023-11-12 02:25:11,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 40 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:11,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:11,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 141 [2023-11-12 02:25:11,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:11,961 INFO L124 PetriNetUnfolderBase]: 112/256 cut-off events. [2023-11-12 02:25:11,961 INFO L125 PetriNetUnfolderBase]: For 75/80 co-relation queries the response was YES. [2023-11-12 02:25:11,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 256 events. 112/256 cut-off events. For 75/80 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1011 event pairs, 33 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 721. Up to 200 conditions per place. [2023-11-12 02:25:11,966 INFO L140 encePairwiseOnDemand]: 131/141 looper letters, 42 selfloop transitions, 25 changer transitions 8/76 dead transitions. [2023-11-12 02:25:11,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 76 transitions, 438 flow [2023-11-12 02:25:11,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:25:11,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:25:11,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2023-11-12 02:25:11,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5271867612293144 [2023-11-12 02:25:11,971 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 446 transitions. [2023-11-12 02:25:11,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 446 transitions. [2023-11-12 02:25:11,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:11,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 446 transitions. [2023-11-12 02:25:11,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:11,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:11,978 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:11,978 INFO L175 Difference]: Start difference. First operand has 32 places, 40 transitions, 166 flow. Second operand 6 states and 446 transitions. [2023-11-12 02:25:11,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 76 transitions, 438 flow [2023-11-12 02:25:11,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 76 transitions, 438 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:25:11,985 INFO L231 Difference]: Finished difference. Result has 41 places, 60 transitions, 344 flow [2023-11-12 02:25:11,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=41, PETRI_TRANSITIONS=60} [2023-11-12 02:25:11,986 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 17 predicate places. [2023-11-12 02:25:11,987 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 60 transitions, 344 flow [2023-11-12 02:25:11,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:11,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:11,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:11,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:25:11,988 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:11,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:11,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1959211706, now seen corresponding path program 1 times [2023-11-12 02:25:11,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:11,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48897045] [2023-11-12 02:25:11,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:11,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:12,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:12,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48897045] [2023-11-12 02:25:12,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48897045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:12,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:12,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:12,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609094414] [2023-11-12 02:25:12,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:12,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:12,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:12,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:12,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:13,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:13,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 60 transitions, 344 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:13,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:13,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:13,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:13,844 INFO L124 PetriNetUnfolderBase]: 231/521 cut-off events. [2023-11-12 02:25:13,844 INFO L125 PetriNetUnfolderBase]: For 373/381 co-relation queries the response was YES. [2023-11-12 02:25:13,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1943 conditions, 521 events. 231/521 cut-off events. For 373/381 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2698 event pairs, 23 based on Foata normal form. 0/503 useless extension candidates. Maximal degree in co-relation 1925. Up to 223 conditions per place. [2023-11-12 02:25:13,853 INFO L140 encePairwiseOnDemand]: 128/141 looper letters, 136 selfloop transitions, 41 changer transitions 38/216 dead transitions. [2023-11-12 02:25:13,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 216 transitions, 1697 flow [2023-11-12 02:25:13,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:25:13,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-12 02:25:13,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 794 transitions. [2023-11-12 02:25:13,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4022289766970618 [2023-11-12 02:25:13,859 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 794 transitions. [2023-11-12 02:25:13,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 794 transitions. [2023-11-12 02:25:13,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:13,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 794 transitions. [2023-11-12 02:25:13,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 56.714285714285715) internal successors, (794), 14 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:13,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:13,870 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:13,870 INFO L175 Difference]: Start difference. First operand has 41 places, 60 transitions, 344 flow. Second operand 14 states and 794 transitions. [2023-11-12 02:25:13,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 216 transitions, 1697 flow [2023-11-12 02:25:13,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 216 transitions, 1577 flow, removed 60 selfloop flow, removed 0 redundant places. [2023-11-12 02:25:13,887 INFO L231 Difference]: Finished difference. Result has 64 places, 97 transitions, 724 flow [2023-11-12 02:25:13,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=724, PETRI_PLACES=64, PETRI_TRANSITIONS=97} [2023-11-12 02:25:13,888 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 40 predicate places. [2023-11-12 02:25:13,889 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 97 transitions, 724 flow [2023-11-12 02:25:13,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:13,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:13,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:13,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:25:13,890 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:13,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:13,891 INFO L85 PathProgramCache]: Analyzing trace with hash -988452702, now seen corresponding path program 2 times [2023-11-12 02:25:13,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:13,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044648190] [2023-11-12 02:25:13,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:13,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:15,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:15,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044648190] [2023-11-12 02:25:15,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044648190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:15,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:15,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:15,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571973153] [2023-11-12 02:25:15,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:15,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:15,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:15,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:15,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:15,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:15,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 97 transitions, 724 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:15,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:15,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:15,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:16,095 INFO L124 PetriNetUnfolderBase]: 222/511 cut-off events. [2023-11-12 02:25:16,096 INFO L125 PetriNetUnfolderBase]: For 914/921 co-relation queries the response was YES. [2023-11-12 02:25:16,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2345 conditions, 511 events. 222/511 cut-off events. For 914/921 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2649 event pairs, 28 based on Foata normal form. 0/493 useless extension candidates. Maximal degree in co-relation 2315. Up to 353 conditions per place. [2023-11-12 02:25:16,103 INFO L140 encePairwiseOnDemand]: 125/141 looper letters, 75 selfloop transitions, 43 changer transitions 28/147 dead transitions. [2023-11-12 02:25:16,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 147 transitions, 1351 flow [2023-11-12 02:25:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:25:16,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-12 02:25:16,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 627 transitions. [2023-11-12 02:25:16,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40425531914893614 [2023-11-12 02:25:16,107 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 627 transitions. [2023-11-12 02:25:16,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 627 transitions. [2023-11-12 02:25:16,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:16,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 627 transitions. [2023-11-12 02:25:16,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.0) internal successors, (627), 11 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:16,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:16,114 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:16,115 INFO L175 Difference]: Start difference. First operand has 64 places, 97 transitions, 724 flow. Second operand 11 states and 627 transitions. [2023-11-12 02:25:16,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 147 transitions, 1351 flow [2023-11-12 02:25:16,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 147 transitions, 1293 flow, removed 26 selfloop flow, removed 4 redundant places. [2023-11-12 02:25:16,139 INFO L231 Difference]: Finished difference. Result has 70 places, 101 transitions, 844 flow [2023-11-12 02:25:16,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=844, PETRI_PLACES=70, PETRI_TRANSITIONS=101} [2023-11-12 02:25:16,141 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 46 predicate places. [2023-11-12 02:25:16,141 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 101 transitions, 844 flow [2023-11-12 02:25:16,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:16,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:16,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:16,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:25:16,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:16,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:16,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1307679868, now seen corresponding path program 1 times [2023-11-12 02:25:16,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:16,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764425990] [2023-11-12 02:25:16,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:16,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:16,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:16,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764425990] [2023-11-12 02:25:16,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764425990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:16,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:16,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:16,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769753617] [2023-11-12 02:25:16,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:16,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:16,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:16,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:16,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:17,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-12 02:25:17,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 101 transitions, 844 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:17,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:17,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-12 02:25:17,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:17,884 INFO L124 PetriNetUnfolderBase]: 339/778 cut-off events. [2023-11-12 02:25:17,884 INFO L125 PetriNetUnfolderBase]: For 1717/1741 co-relation queries the response was YES. [2023-11-12 02:25:17,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3753 conditions, 778 events. 339/778 cut-off events. For 1717/1741 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4591 event pairs, 33 based on Foata normal form. 10/788 useless extension candidates. Maximal degree in co-relation 3722. Up to 377 conditions per place. [2023-11-12 02:25:17,896 INFO L140 encePairwiseOnDemand]: 129/141 looper letters, 169 selfloop transitions, 50 changer transitions 45/265 dead transitions. [2023-11-12 02:25:17,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 265 transitions, 2617 flow [2023-11-12 02:25:17,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-12 02:25:17,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-12 02:25:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 921 transitions. [2023-11-12 02:25:17,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40824468085106386 [2023-11-12 02:25:17,902 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 921 transitions. [2023-11-12 02:25:17,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 921 transitions. [2023-11-12 02:25:17,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:17,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 921 transitions. [2023-11-12 02:25:17,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 57.5625) internal successors, (921), 16 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:17,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 141.0) internal successors, (2397), 17 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:17,912 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 141.0) internal successors, (2397), 17 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:17,912 INFO L175 Difference]: Start difference. First operand has 70 places, 101 transitions, 844 flow. Second operand 16 states and 921 transitions. [2023-11-12 02:25:17,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 265 transitions, 2617 flow [2023-11-12 02:25:17,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 265 transitions, 2504 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-12 02:25:17,939 INFO L231 Difference]: Finished difference. Result has 90 places, 130 transitions, 1224 flow [2023-11-12 02:25:17,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1224, PETRI_PLACES=90, PETRI_TRANSITIONS=130} [2023-11-12 02:25:17,940 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 66 predicate places. [2023-11-12 02:25:17,941 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 130 transitions, 1224 flow [2023-11-12 02:25:17,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:17,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:17,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:17,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:25:17,942 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:17,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash 117364866, now seen corresponding path program 3 times [2023-11-12 02:25:17,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:17,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797375932] [2023-11-12 02:25:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:17,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:18,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:18,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:18,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797375932] [2023-11-12 02:25:18,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797375932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:18,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:18,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:18,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57163755] [2023-11-12 02:25:18,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:18,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:18,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:18,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:18,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:19,042 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:19,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 130 transitions, 1224 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:19,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:19,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:19,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:19,751 INFO L124 PetriNetUnfolderBase]: 394/886 cut-off events. [2023-11-12 02:25:19,751 INFO L125 PetriNetUnfolderBase]: For 3222/3234 co-relation queries the response was YES. [2023-11-12 02:25:19,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4998 conditions, 886 events. 394/886 cut-off events. For 3222/3234 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5368 event pairs, 40 based on Foata normal form. 0/848 useless extension candidates. Maximal degree in co-relation 4956. Up to 552 conditions per place. [2023-11-12 02:25:19,763 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 131 selfloop transitions, 80 changer transitions 27/239 dead transitions. [2023-11-12 02:25:19,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 239 transitions, 2673 flow [2023-11-12 02:25:19,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:25:19,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:25:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 684 transitions. [2023-11-12 02:25:19,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40425531914893614 [2023-11-12 02:25:19,768 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 684 transitions. [2023-11-12 02:25:19,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 684 transitions. [2023-11-12 02:25:19,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:19,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 684 transitions. [2023-11-12 02:25:19,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 57.0) internal successors, (684), 12 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:19,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:19,776 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:19,776 INFO L175 Difference]: Start difference. First operand has 90 places, 130 transitions, 1224 flow. Second operand 12 states and 684 transitions. [2023-11-12 02:25:19,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 239 transitions, 2673 flow [2023-11-12 02:25:19,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 239 transitions, 2570 flow, removed 47 selfloop flow, removed 6 redundant places. [2023-11-12 02:25:19,820 INFO L231 Difference]: Finished difference. Result has 98 places, 161 transitions, 1769 flow [2023-11-12 02:25:19,821 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=1191, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1769, PETRI_PLACES=98, PETRI_TRANSITIONS=161} [2023-11-12 02:25:19,824 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 74 predicate places. [2023-11-12 02:25:19,824 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 161 transitions, 1769 flow [2023-11-12 02:25:19,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:19,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:19,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:19,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:25:19,826 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:19,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:19,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1977896036, now seen corresponding path program 2 times [2023-11-12 02:25:19,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:19,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700741023] [2023-11-12 02:25:19,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:19,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:20,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:20,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:20,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700741023] [2023-11-12 02:25:20,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700741023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:20,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:20,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:20,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364027475] [2023-11-12 02:25:20,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:20,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:20,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:20,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:20,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:20,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:20,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 161 transitions, 1769 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:20,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:20,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:20,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:21,472 INFO L124 PetriNetUnfolderBase]: 367/839 cut-off events. [2023-11-12 02:25:21,472 INFO L125 PetriNetUnfolderBase]: For 4115/4136 co-relation queries the response was YES. [2023-11-12 02:25:21,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5133 conditions, 839 events. 367/839 cut-off events. For 4115/4136 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5079 event pairs, 34 based on Foata normal form. 18/857 useless extension candidates. Maximal degree in co-relation 5087. Up to 455 conditions per place. [2023-11-12 02:25:21,537 INFO L140 encePairwiseOnDemand]: 129/141 looper letters, 163 selfloop transitions, 53 changer transitions 69/286 dead transitions. [2023-11-12 02:25:21,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 286 transitions, 3571 flow [2023-11-12 02:25:21,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 02:25:21,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-12 02:25:21,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 834 transitions. [2023-11-12 02:25:21,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3943262411347518 [2023-11-12 02:25:21,543 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 834 transitions. [2023-11-12 02:25:21,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 834 transitions. [2023-11-12 02:25:21,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:21,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 834 transitions. [2023-11-12 02:25:21,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 55.6) internal successors, (834), 15 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:21,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 141.0) internal successors, (2256), 16 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:21,552 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 141.0) internal successors, (2256), 16 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:21,552 INFO L175 Difference]: Start difference. First operand has 98 places, 161 transitions, 1769 flow. Second operand 15 states and 834 transitions. [2023-11-12 02:25:21,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 286 transitions, 3571 flow [2023-11-12 02:25:21,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 286 transitions, 3484 flow, removed 37 selfloop flow, removed 4 redundant places. [2023-11-12 02:25:21,600 INFO L231 Difference]: Finished difference. Result has 116 places, 164 transitions, 2005 flow [2023-11-12 02:25:21,601 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=1716, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2005, PETRI_PLACES=116, PETRI_TRANSITIONS=164} [2023-11-12 02:25:21,602 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 92 predicate places. [2023-11-12 02:25:21,602 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 164 transitions, 2005 flow [2023-11-12 02:25:21,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:21,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:21,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:21,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:25:21,603 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:21,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:21,604 INFO L85 PathProgramCache]: Analyzing trace with hash -417802146, now seen corresponding path program 4 times [2023-11-12 02:25:21,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:21,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392702125] [2023-11-12 02:25:21,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:21,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:22,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:22,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:22,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392702125] [2023-11-12 02:25:22,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392702125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:22,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:22,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:22,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416878606] [2023-11-12 02:25:22,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:22,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:22,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:22,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:22,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:22,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:22,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 164 transitions, 2005 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:22,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:22,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:22,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:23,172 INFO L124 PetriNetUnfolderBase]: 335/786 cut-off events. [2023-11-12 02:25:23,172 INFO L125 PetriNetUnfolderBase]: For 5211/5216 co-relation queries the response was YES. [2023-11-12 02:25:23,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5270 conditions, 786 events. 335/786 cut-off events. For 5211/5216 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4773 event pairs, 35 based on Foata normal form. 6/792 useless extension candidates. Maximal degree in co-relation 5216. Up to 461 conditions per place. [2023-11-12 02:25:23,184 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 149 selfloop transitions, 47 changer transitions 18/215 dead transitions. [2023-11-12 02:25:23,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 215 transitions, 2976 flow [2023-11-12 02:25:23,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:25:23,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:25:23,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 676 transitions. [2023-11-12 02:25:23,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39952718676122934 [2023-11-12 02:25:23,189 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 676 transitions. [2023-11-12 02:25:23,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 676 transitions. [2023-11-12 02:25:23,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:23,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 676 transitions. [2023-11-12 02:25:23,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.333333333333336) internal successors, (676), 12 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:23,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:23,196 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:23,196 INFO L175 Difference]: Start difference. First operand has 116 places, 164 transitions, 2005 flow. Second operand 12 states and 676 transitions. [2023-11-12 02:25:23,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 215 transitions, 2976 flow [2023-11-12 02:25:23,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 215 transitions, 2812 flow, removed 60 selfloop flow, removed 11 redundant places. [2023-11-12 02:25:23,255 INFO L231 Difference]: Finished difference. Result has 116 places, 168 transitions, 2114 flow [2023-11-12 02:25:23,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=1888, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2114, PETRI_PLACES=116, PETRI_TRANSITIONS=168} [2023-11-12 02:25:23,256 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 92 predicate places. [2023-11-12 02:25:23,257 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 168 transitions, 2114 flow [2023-11-12 02:25:23,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:23,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:23,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:23,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:25:23,258 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:23,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:23,259 INFO L85 PathProgramCache]: Analyzing trace with hash -103843446, now seen corresponding path program 5 times [2023-11-12 02:25:23,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:23,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353910233] [2023-11-12 02:25:23,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:23,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:23,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:23,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:23,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353910233] [2023-11-12 02:25:23,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353910233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:23,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:23,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:23,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677713401] [2023-11-12 02:25:23,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:23,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:23,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:23,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:23,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:24,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:24,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 168 transitions, 2114 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:24,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:24,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:24,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:24,916 INFO L124 PetriNetUnfolderBase]: 349/818 cut-off events. [2023-11-12 02:25:24,916 INFO L125 PetriNetUnfolderBase]: For 5565/5573 co-relation queries the response was YES. [2023-11-12 02:25:24,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5531 conditions, 818 events. 349/818 cut-off events. For 5565/5573 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5049 event pairs, 36 based on Foata normal form. 10/828 useless extension candidates. Maximal degree in co-relation 5476. Up to 464 conditions per place. [2023-11-12 02:25:24,929 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 181 selfloop transitions, 57 changer transitions 28/267 dead transitions. [2023-11-12 02:25:24,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 267 transitions, 3758 flow [2023-11-12 02:25:24,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:25:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:25:24,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 684 transitions. [2023-11-12 02:25:24,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40425531914893614 [2023-11-12 02:25:24,935 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 684 transitions. [2023-11-12 02:25:24,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 684 transitions. [2023-11-12 02:25:24,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:24,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 684 transitions. [2023-11-12 02:25:24,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 57.0) internal successors, (684), 12 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:24,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:24,943 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:24,943 INFO L175 Difference]: Start difference. First operand has 116 places, 168 transitions, 2114 flow. Second operand 12 states and 684 transitions. [2023-11-12 02:25:24,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 267 transitions, 3758 flow [2023-11-12 02:25:25,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 267 transitions, 3659 flow, removed 29 selfloop flow, removed 6 redundant places. [2023-11-12 02:25:25,010 INFO L231 Difference]: Finished difference. Result has 125 places, 187 transitions, 2523 flow [2023-11-12 02:25:25,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=2065, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2523, PETRI_PLACES=125, PETRI_TRANSITIONS=187} [2023-11-12 02:25:25,011 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 101 predicate places. [2023-11-12 02:25:25,012 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 187 transitions, 2523 flow [2023-11-12 02:25:25,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:25,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:25,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:25,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:25:25,013 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:25,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:25,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1254488984, now seen corresponding path program 3 times [2023-11-12 02:25:25,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:25,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143007179] [2023-11-12 02:25:25,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:25,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:25,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:25,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:25,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143007179] [2023-11-12 02:25:25,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143007179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:25,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:25,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:25,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279553679] [2023-11-12 02:25:25,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:25,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:25,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:25,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:25,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:25,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-12 02:25:25,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 187 transitions, 2523 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:25,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:25,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-12 02:25:25,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:26,584 INFO L124 PetriNetUnfolderBase]: 297/740 cut-off events. [2023-11-12 02:25:26,585 INFO L125 PetriNetUnfolderBase]: For 5603/5615 co-relation queries the response was YES. [2023-11-12 02:25:26,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5149 conditions, 740 events. 297/740 cut-off events. For 5603/5615 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4698 event pairs, 24 based on Foata normal form. 10/750 useless extension candidates. Maximal degree in co-relation 5090. Up to 250 conditions per place. [2023-11-12 02:25:26,646 INFO L140 encePairwiseOnDemand]: 129/141 looper letters, 216 selfloop transitions, 54 changer transitions 31/302 dead transitions. [2023-11-12 02:25:26,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 302 transitions, 4417 flow [2023-11-12 02:25:26,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:25:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-12 02:25:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 595 transitions. [2023-11-12 02:25:26,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4219858156028369 [2023-11-12 02:25:26,650 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 595 transitions. [2023-11-12 02:25:26,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 595 transitions. [2023-11-12 02:25:26,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:26,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 595 transitions. [2023-11-12 02:25:26,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.5) internal successors, (595), 10 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:26,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:26,658 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:26,658 INFO L175 Difference]: Start difference. First operand has 125 places, 187 transitions, 2523 flow. Second operand 10 states and 595 transitions. [2023-11-12 02:25:26,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 302 transitions, 4417 flow [2023-11-12 02:25:26,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 302 transitions, 4256 flow, removed 36 selfloop flow, removed 7 redundant places. [2023-11-12 02:25:26,728 INFO L231 Difference]: Finished difference. Result has 129 places, 205 transitions, 2814 flow [2023-11-12 02:25:26,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=2394, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2814, PETRI_PLACES=129, PETRI_TRANSITIONS=205} [2023-11-12 02:25:26,730 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 105 predicate places. [2023-11-12 02:25:26,730 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 205 transitions, 2814 flow [2023-11-12 02:25:26,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:26,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:26,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:26,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:25:26,731 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:26,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:26,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1133889038, now seen corresponding path program 6 times [2023-11-12 02:25:26,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:26,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511975867] [2023-11-12 02:25:26,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:26,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:27,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:27,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:27,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511975867] [2023-11-12 02:25:27,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511975867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:27,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:27,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:27,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576937857] [2023-11-12 02:25:27,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:27,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:27,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:27,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:27,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:27,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-12 02:25:27,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 205 transitions, 2814 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:27,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:27,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-12 02:25:27,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:28,348 INFO L124 PetriNetUnfolderBase]: 318/754 cut-off events. [2023-11-12 02:25:28,348 INFO L125 PetriNetUnfolderBase]: For 5599/5603 co-relation queries the response was YES. [2023-11-12 02:25:28,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5339 conditions, 754 events. 318/754 cut-off events. For 5599/5603 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4577 event pairs, 24 based on Foata normal form. 6/760 useless extension candidates. Maximal degree in co-relation 5278. Up to 296 conditions per place. [2023-11-12 02:25:28,360 INFO L140 encePairwiseOnDemand]: 125/141 looper letters, 152 selfloop transitions, 85 changer transitions 26/264 dead transitions. [2023-11-12 02:25:28,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 264 transitions, 3956 flow [2023-11-12 02:25:28,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:25:28,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:25:28,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 695 transitions. [2023-11-12 02:25:28,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4107565011820331 [2023-11-12 02:25:28,366 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 695 transitions. [2023-11-12 02:25:28,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 695 transitions. [2023-11-12 02:25:28,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:28,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 695 transitions. [2023-11-12 02:25:28,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 57.916666666666664) internal successors, (695), 12 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:28,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:28,372 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:28,372 INFO L175 Difference]: Start difference. First operand has 129 places, 205 transitions, 2814 flow. Second operand 12 states and 695 transitions. [2023-11-12 02:25:28,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 264 transitions, 3956 flow [2023-11-12 02:25:28,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 264 transitions, 3772 flow, removed 64 selfloop flow, removed 3 redundant places. [2023-11-12 02:25:28,450 INFO L231 Difference]: Finished difference. Result has 145 places, 209 transitions, 3035 flow [2023-11-12 02:25:28,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=2679, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3035, PETRI_PLACES=145, PETRI_TRANSITIONS=209} [2023-11-12 02:25:28,451 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 121 predicate places. [2023-11-12 02:25:28,451 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 209 transitions, 3035 flow [2023-11-12 02:25:28,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:28,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:28,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:28,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:25:28,452 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:28,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:28,453 INFO L85 PathProgramCache]: Analyzing trace with hash -408605376, now seen corresponding path program 7 times [2023-11-12 02:25:28,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:28,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757099305] [2023-11-12 02:25:28,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:28,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:28,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:28,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:28,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757099305] [2023-11-12 02:25:28,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757099305] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:28,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:28,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:28,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122996993] [2023-11-12 02:25:28,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:28,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:28,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:28,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:28,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:29,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:29,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 209 transitions, 3035 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:29,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:29,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:29,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:30,023 INFO L124 PetriNetUnfolderBase]: 304/741 cut-off events. [2023-11-12 02:25:30,023 INFO L125 PetriNetUnfolderBase]: For 6662/6664 co-relation queries the response was YES. [2023-11-12 02:25:30,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5578 conditions, 741 events. 304/741 cut-off events. For 6662/6664 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4596 event pairs, 33 based on Foata normal form. 10/751 useless extension candidates. Maximal degree in co-relation 5510. Up to 438 conditions per place. [2023-11-12 02:25:30,036 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 199 selfloop transitions, 59 changer transitions 19/278 dead transitions. [2023-11-12 02:25:30,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 278 transitions, 4437 flow [2023-11-12 02:25:30,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:25:30,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:25:30,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 678 transitions. [2023-11-12 02:25:30,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40070921985815605 [2023-11-12 02:25:30,040 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 678 transitions. [2023-11-12 02:25:30,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 678 transitions. [2023-11-12 02:25:30,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:30,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 678 transitions. [2023-11-12 02:25:30,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.5) internal successors, (678), 12 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:30,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:30,049 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:30,049 INFO L175 Difference]: Start difference. First operand has 145 places, 209 transitions, 3035 flow. Second operand 12 states and 678 transitions. [2023-11-12 02:25:30,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 278 transitions, 4437 flow [2023-11-12 02:25:30,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 278 transitions, 4288 flow, removed 41 selfloop flow, removed 6 redundant places. [2023-11-12 02:25:30,130 INFO L231 Difference]: Finished difference. Result has 153 places, 220 transitions, 3272 flow [2023-11-12 02:25:30,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=2920, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3272, PETRI_PLACES=153, PETRI_TRANSITIONS=220} [2023-11-12 02:25:30,131 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 129 predicate places. [2023-11-12 02:25:30,131 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 220 transitions, 3272 flow [2023-11-12 02:25:30,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:30,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:30,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:30,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:25:30,132 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:30,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:30,133 INFO L85 PathProgramCache]: Analyzing trace with hash -417531516, now seen corresponding path program 8 times [2023-11-12 02:25:30,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:30,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635803941] [2023-11-12 02:25:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:30,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:30,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:30,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:30,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635803941] [2023-11-12 02:25:30,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635803941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:30,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:30,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:30,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231393078] [2023-11-12 02:25:30,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:30,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:30,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:30,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:30,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:31,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:31,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 220 transitions, 3272 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:31,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:31,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:31,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:31,781 INFO L124 PetriNetUnfolderBase]: 288/710 cut-off events. [2023-11-12 02:25:31,781 INFO L125 PetriNetUnfolderBase]: For 5958/5959 co-relation queries the response was YES. [2023-11-12 02:25:31,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5235 conditions, 710 events. 288/710 cut-off events. For 5958/5959 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4382 event pairs, 31 based on Foata normal form. 10/720 useless extension candidates. Maximal degree in co-relation 5164. Up to 433 conditions per place. [2023-11-12 02:25:31,793 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 179 selfloop transitions, 57 changer transitions 28/265 dead transitions. [2023-11-12 02:25:31,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 265 transitions, 4365 flow [2023-11-12 02:25:31,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 02:25:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-12 02:25:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 828 transitions. [2023-11-12 02:25:31,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39148936170212767 [2023-11-12 02:25:31,796 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 828 transitions. [2023-11-12 02:25:31,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 828 transitions. [2023-11-12 02:25:31,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:31,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 828 transitions. [2023-11-12 02:25:31,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 55.2) internal successors, (828), 15 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:31,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 141.0) internal successors, (2256), 16 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:31,804 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 141.0) internal successors, (2256), 16 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:31,804 INFO L175 Difference]: Start difference. First operand has 153 places, 220 transitions, 3272 flow. Second operand 15 states and 828 transitions. [2023-11-12 02:25:31,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 265 transitions, 4365 flow [2023-11-12 02:25:31,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 265 transitions, 4260 flow, removed 25 selfloop flow, removed 7 redundant places. [2023-11-12 02:25:31,887 INFO L231 Difference]: Finished difference. Result has 164 places, 216 transitions, 3258 flow [2023-11-12 02:25:31,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=3187, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3258, PETRI_PLACES=164, PETRI_TRANSITIONS=216} [2023-11-12 02:25:31,888 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 140 predicate places. [2023-11-12 02:25:31,889 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 216 transitions, 3258 flow [2023-11-12 02:25:31,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:31,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:31,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:31,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:25:31,890 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:31,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:31,890 INFO L85 PathProgramCache]: Analyzing trace with hash 896629430, now seen corresponding path program 9 times [2023-11-12 02:25:31,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:31,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742949675] [2023-11-12 02:25:31,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:31,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:32,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:32,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:32,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742949675] [2023-11-12 02:25:32,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742949675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:32,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:32,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:32,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700949890] [2023-11-12 02:25:32,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:32,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:32,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:32,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:32,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:32,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-12 02:25:32,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 216 transitions, 3258 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:32,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:32,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-12 02:25:32,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:33,436 INFO L124 PetriNetUnfolderBase]: 313/749 cut-off events. [2023-11-12 02:25:33,436 INFO L125 PetriNetUnfolderBase]: For 6728/6730 co-relation queries the response was YES. [2023-11-12 02:25:33,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5579 conditions, 749 events. 313/749 cut-off events. For 6728/6730 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4579 event pairs, 23 based on Foata normal form. 10/759 useless extension candidates. Maximal degree in co-relation 5504. Up to 230 conditions per place. [2023-11-12 02:25:33,448 INFO L140 encePairwiseOnDemand]: 129/141 looper letters, 240 selfloop transitions, 55 changer transitions 32/328 dead transitions. [2023-11-12 02:25:33,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 328 transitions, 5286 flow [2023-11-12 02:25:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:25:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:25:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 698 transitions. [2023-11-12 02:25:33,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41252955082742315 [2023-11-12 02:25:33,451 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 698 transitions. [2023-11-12 02:25:33,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 698 transitions. [2023-11-12 02:25:33,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:33,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 698 transitions. [2023-11-12 02:25:33,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 58.166666666666664) internal successors, (698), 12 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:33,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:33,457 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:33,458 INFO L175 Difference]: Start difference. First operand has 164 places, 216 transitions, 3258 flow. Second operand 12 states and 698 transitions. [2023-11-12 02:25:33,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 328 transitions, 5286 flow [2023-11-12 02:25:33,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 328 transitions, 5047 flow, removed 57 selfloop flow, removed 15 redundant places. [2023-11-12 02:25:33,578 INFO L231 Difference]: Finished difference. Result has 159 places, 235 transitions, 3519 flow [2023-11-12 02:25:33,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=3105, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3519, PETRI_PLACES=159, PETRI_TRANSITIONS=235} [2023-11-12 02:25:33,579 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 135 predicate places. [2023-11-12 02:25:33,579 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 235 transitions, 3519 flow [2023-11-12 02:25:33,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:33,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:33,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:33,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:25:33,580 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:33,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:33,580 INFO L85 PathProgramCache]: Analyzing trace with hash 669675918, now seen corresponding path program 10 times [2023-11-12 02:25:33,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:33,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532359209] [2023-11-12 02:25:33,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:33,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:34,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:34,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532359209] [2023-11-12 02:25:34,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532359209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:34,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:34,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:34,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060153986] [2023-11-12 02:25:34,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:34,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:34,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:34,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:34,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:34,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:34,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 235 transitions, 3519 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:34,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:34,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:34,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:35,315 INFO L124 PetriNetUnfolderBase]: 300/747 cut-off events. [2023-11-12 02:25:35,315 INFO L125 PetriNetUnfolderBase]: For 7330/7332 co-relation queries the response was YES. [2023-11-12 02:25:35,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5710 conditions, 747 events. 300/747 cut-off events. For 7330/7332 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4701 event pairs, 36 based on Foata normal form. 10/757 useless extension candidates. Maximal degree in co-relation 5636. Up to 577 conditions per place. [2023-11-12 02:25:35,324 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 159 selfloop transitions, 104 changer transitions 17/281 dead transitions. [2023-11-12 02:25:35,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 281 transitions, 4708 flow [2023-11-12 02:25:35,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:25:35,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-12 02:25:35,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 721 transitions. [2023-11-12 02:25:35,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3933442444080742 [2023-11-12 02:25:35,329 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 721 transitions. [2023-11-12 02:25:35,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 721 transitions. [2023-11-12 02:25:35,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:35,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 721 transitions. [2023-11-12 02:25:35,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.46153846153846) internal successors, (721), 13 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:35,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:35,336 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:35,336 INFO L175 Difference]: Start difference. First operand has 159 places, 235 transitions, 3519 flow. Second operand 13 states and 721 transitions. [2023-11-12 02:25:35,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 281 transitions, 4708 flow [2023-11-12 02:25:35,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 281 transitions, 4533 flow, removed 47 selfloop flow, removed 7 redundant places. [2023-11-12 02:25:35,424 INFO L231 Difference]: Finished difference. Result has 169 places, 247 transitions, 3866 flow [2023-11-12 02:25:35,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=3368, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3866, PETRI_PLACES=169, PETRI_TRANSITIONS=247} [2023-11-12 02:25:35,425 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 145 predicate places. [2023-11-12 02:25:35,426 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 247 transitions, 3866 flow [2023-11-12 02:25:35,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:35,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:35,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:35,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-12 02:25:35,427 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:35,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:35,427 INFO L85 PathProgramCache]: Analyzing trace with hash -404206888, now seen corresponding path program 4 times [2023-11-12 02:25:35,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:35,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65306393] [2023-11-12 02:25:35,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:35,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:35,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:35,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:35,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65306393] [2023-11-12 02:25:35,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65306393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:35,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:35,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:35,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237596065] [2023-11-12 02:25:35,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:35,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:35,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:35,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:35,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:36,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-12 02:25:36,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 247 transitions, 3866 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:36,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:36,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-12 02:25:36,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:37,028 INFO L124 PetriNetUnfolderBase]: 301/769 cut-off events. [2023-11-12 02:25:37,028 INFO L125 PetriNetUnfolderBase]: For 7829/7835 co-relation queries the response was YES. [2023-11-12 02:25:37,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6021 conditions, 769 events. 301/769 cut-off events. For 7829/7835 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4960 event pairs, 13 based on Foata normal form. 10/778 useless extension candidates. Maximal degree in co-relation 5942. Up to 314 conditions per place. [2023-11-12 02:25:37,037 INFO L140 encePairwiseOnDemand]: 125/141 looper letters, 148 selfloop transitions, 157 changer transitions 32/338 dead transitions. [2023-11-12 02:25:37,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 338 transitions, 5764 flow [2023-11-12 02:25:37,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:25:37,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-12 02:25:37,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 806 transitions. [2023-11-12 02:25:37,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4083080040526849 [2023-11-12 02:25:37,040 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 806 transitions. [2023-11-12 02:25:37,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 806 transitions. [2023-11-12 02:25:37,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:37,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 806 transitions. [2023-11-12 02:25:37,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 57.57142857142857) internal successors, (806), 14 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:37,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:37,047 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:37,048 INFO L175 Difference]: Start difference. First operand has 169 places, 247 transitions, 3866 flow. Second operand 14 states and 806 transitions. [2023-11-12 02:25:37,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 338 transitions, 5764 flow [2023-11-12 02:25:37,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 338 transitions, 5647 flow, removed 25 selfloop flow, removed 5 redundant places. [2023-11-12 02:25:37,139 INFO L231 Difference]: Finished difference. Result has 182 places, 263 transitions, 4555 flow [2023-11-12 02:25:37,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=3785, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4555, PETRI_PLACES=182, PETRI_TRANSITIONS=263} [2023-11-12 02:25:37,139 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 158 predicate places. [2023-11-12 02:25:37,139 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 263 transitions, 4555 flow [2023-11-12 02:25:37,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:37,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:37,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:37,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-12 02:25:37,140 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:37,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:37,141 INFO L85 PathProgramCache]: Analyzing trace with hash -937250622, now seen corresponding path program 11 times [2023-11-12 02:25:37,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:37,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773030485] [2023-11-12 02:25:37,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:37,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:37,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:37,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:37,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773030485] [2023-11-12 02:25:37,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773030485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:37,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:37,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:37,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622126846] [2023-11-12 02:25:37,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:37,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:37,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:37,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:37,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:38,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:38,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 263 transitions, 4555 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:38,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:38,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:38,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:38,978 INFO L124 PetriNetUnfolderBase]: 316/787 cut-off events. [2023-11-12 02:25:38,978 INFO L125 PetriNetUnfolderBase]: For 9332/9333 co-relation queries the response was YES. [2023-11-12 02:25:38,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6510 conditions, 787 events. 316/787 cut-off events. For 9332/9333 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5008 event pairs, 32 based on Foata normal form. 10/797 useless extension candidates. Maximal degree in co-relation 6425. Up to 615 conditions per place. [2023-11-12 02:25:38,989 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 154 selfloop transitions, 122 changer transitions 23/300 dead transitions. [2023-11-12 02:25:38,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 300 transitions, 5722 flow [2023-11-12 02:25:38,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:25:38,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-12 02:25:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 725 transitions. [2023-11-12 02:25:38,992 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3955264593562466 [2023-11-12 02:25:38,992 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 725 transitions. [2023-11-12 02:25:38,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 725 transitions. [2023-11-12 02:25:38,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:38,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 725 transitions. [2023-11-12 02:25:38,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.76923076923077) internal successors, (725), 13 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:38,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:38,998 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:38,999 INFO L175 Difference]: Start difference. First operand has 182 places, 263 transitions, 4555 flow. Second operand 13 states and 725 transitions. [2023-11-12 02:25:38,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 300 transitions, 5722 flow [2023-11-12 02:25:39,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 300 transitions, 5542 flow, removed 55 selfloop flow, removed 7 redundant places. [2023-11-12 02:25:39,105 INFO L231 Difference]: Finished difference. Result has 191 places, 262 transitions, 4702 flow [2023-11-12 02:25:39,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=4394, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4702, PETRI_PLACES=191, PETRI_TRANSITIONS=262} [2023-11-12 02:25:39,106 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 167 predicate places. [2023-11-12 02:25:39,106 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 262 transitions, 4702 flow [2023-11-12 02:25:39,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:39,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:39,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:39,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-12 02:25:39,107 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:39,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:39,108 INFO L85 PathProgramCache]: Analyzing trace with hash -187397064, now seen corresponding path program 12 times [2023-11-12 02:25:39,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:39,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030998899] [2023-11-12 02:25:39,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:39,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:39,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:39,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030998899] [2023-11-12 02:25:39,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030998899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:39,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:39,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:39,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219630704] [2023-11-12 02:25:39,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:39,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:39,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:39,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:39,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:40,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:40,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 262 transitions, 4702 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:40,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:40,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:40,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:40,755 INFO L124 PetriNetUnfolderBase]: 336/840 cut-off events. [2023-11-12 02:25:40,755 INFO L125 PetriNetUnfolderBase]: For 11438/11439 co-relation queries the response was YES. [2023-11-12 02:25:40,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7191 conditions, 840 events. 336/840 cut-off events. For 11438/11439 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5489 event pairs, 36 based on Foata normal form. 10/850 useless extension candidates. Maximal degree in co-relation 7103. Up to 617 conditions per place. [2023-11-12 02:25:40,763 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 188 selfloop transitions, 117 changer transitions 18/324 dead transitions. [2023-11-12 02:25:40,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 324 transitions, 6381 flow [2023-11-12 02:25:40,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:25:40,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:25:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 672 transitions. [2023-11-12 02:25:40,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3971631205673759 [2023-11-12 02:25:40,770 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 672 transitions. [2023-11-12 02:25:40,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 672 transitions. [2023-11-12 02:25:40,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:40,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 672 transitions. [2023-11-12 02:25:40,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.0) internal successors, (672), 12 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:40,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:40,786 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:40,786 INFO L175 Difference]: Start difference. First operand has 191 places, 262 transitions, 4702 flow. Second operand 12 states and 672 transitions. [2023-11-12 02:25:40,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 324 transitions, 6381 flow [2023-11-12 02:25:40,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 324 transitions, 6058 flow, removed 30 selfloop flow, removed 12 redundant places. [2023-11-12 02:25:40,900 INFO L231 Difference]: Finished difference. Result has 192 places, 276 transitions, 5018 flow [2023-11-12 02:25:40,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=4438, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5018, PETRI_PLACES=192, PETRI_TRANSITIONS=276} [2023-11-12 02:25:40,901 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 168 predicate places. [2023-11-12 02:25:40,901 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 276 transitions, 5018 flow [2023-11-12 02:25:40,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:40,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:40,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:40,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-12 02:25:40,902 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:40,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:40,902 INFO L85 PathProgramCache]: Analyzing trace with hash -196593834, now seen corresponding path program 13 times [2023-11-12 02:25:40,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:40,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370053171] [2023-11-12 02:25:40,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:40,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:41,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:41,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370053171] [2023-11-12 02:25:41,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370053171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:41,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:41,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:41,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890901428] [2023-11-12 02:25:41,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:41,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:41,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:41,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:41,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:41,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-12 02:25:41,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 276 transitions, 5018 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:41,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:41,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-12 02:25:41,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:42,353 INFO L124 PetriNetUnfolderBase]: 327/827 cut-off events. [2023-11-12 02:25:42,353 INFO L125 PetriNetUnfolderBase]: For 11870/11871 co-relation queries the response was YES. [2023-11-12 02:25:42,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7055 conditions, 827 events. 327/827 cut-off events. For 11870/11871 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5425 event pairs, 37 based on Foata normal form. 6/833 useless extension candidates. Maximal degree in co-relation 6965. Up to 672 conditions per place. [2023-11-12 02:25:42,362 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 170 selfloop transitions, 114 changer transitions 9/294 dead transitions. [2023-11-12 02:25:42,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 294 transitions, 5889 flow [2023-11-12 02:25:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:25:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:25:42,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 660 transitions. [2023-11-12 02:25:42,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3900709219858156 [2023-11-12 02:25:42,371 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 660 transitions. [2023-11-12 02:25:42,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 660 transitions. [2023-11-12 02:25:42,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:42,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 660 transitions. [2023-11-12 02:25:42,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.0) internal successors, (660), 12 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:42,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:42,387 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:42,387 INFO L175 Difference]: Start difference. First operand has 192 places, 276 transitions, 5018 flow. Second operand 12 states and 660 transitions. [2023-11-12 02:25:42,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 294 transitions, 5889 flow [2023-11-12 02:25:42,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 294 transitions, 5784 flow, removed 47 selfloop flow, removed 5 redundant places. [2023-11-12 02:25:42,535 INFO L231 Difference]: Finished difference. Result has 200 places, 277 transitions, 5197 flow [2023-11-12 02:25:42,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=4928, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5197, PETRI_PLACES=200, PETRI_TRANSITIONS=277} [2023-11-12 02:25:42,537 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 176 predicate places. [2023-11-12 02:25:42,537 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 277 transitions, 5197 flow [2023-11-12 02:25:42,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:42,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:42,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:42,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-12 02:25:42,538 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:42,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:42,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1124692268, now seen corresponding path program 14 times [2023-11-12 02:25:42,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:42,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736416651] [2023-11-12 02:25:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:42,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:42,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:42,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:42,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736416651] [2023-11-12 02:25:42,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736416651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:42,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:42,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:42,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065103244] [2023-11-12 02:25:42,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:42,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:42,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:42,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:42,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:43,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-12 02:25:43,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 277 transitions, 5197 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:43,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:43,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-12 02:25:43,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:44,071 INFO L124 PetriNetUnfolderBase]: 372/910 cut-off events. [2023-11-12 02:25:44,071 INFO L125 PetriNetUnfolderBase]: For 13817/13818 co-relation queries the response was YES. [2023-11-12 02:25:44,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7829 conditions, 910 events. 372/910 cut-off events. For 13817/13818 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6031 event pairs, 32 based on Foata normal form. 10/920 useless extension candidates. Maximal degree in co-relation 7737. Up to 359 conditions per place. [2023-11-12 02:25:44,082 INFO L140 encePairwiseOnDemand]: 125/141 looper letters, 207 selfloop transitions, 123 changer transitions 27/358 dead transitions. [2023-11-12 02:25:44,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 358 transitions, 7205 flow [2023-11-12 02:25:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:25:44,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:25:44,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 697 transitions. [2023-11-12 02:25:44,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4119385342789598 [2023-11-12 02:25:44,092 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 697 transitions. [2023-11-12 02:25:44,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 697 transitions. [2023-11-12 02:25:44,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:44,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 697 transitions. [2023-11-12 02:25:44,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 58.083333333333336) internal successors, (697), 12 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:44,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:44,100 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:44,101 INFO L175 Difference]: Start difference. First operand has 200 places, 277 transitions, 5197 flow. Second operand 12 states and 697 transitions. [2023-11-12 02:25:44,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 358 transitions, 7205 flow [2023-11-12 02:25:44,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 358 transitions, 6936 flow, removed 30 selfloop flow, removed 11 redundant places. [2023-11-12 02:25:44,300 INFO L231 Difference]: Finished difference. Result has 203 places, 290 transitions, 5563 flow [2023-11-12 02:25:44,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=4979, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5563, PETRI_PLACES=203, PETRI_TRANSITIONS=290} [2023-11-12 02:25:44,301 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 179 predicate places. [2023-11-12 02:25:44,301 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 290 transitions, 5563 flow [2023-11-12 02:25:44,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:44,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:44,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:44,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-12 02:25:44,302 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:44,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:44,303 INFO L85 PathProgramCache]: Analyzing trace with hash -819930338, now seen corresponding path program 15 times [2023-11-12 02:25:44,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:44,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786748419] [2023-11-12 02:25:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:44,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:44,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:44,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786748419] [2023-11-12 02:25:44,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786748419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:44,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:44,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:44,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584515165] [2023-11-12 02:25:44,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:44,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:25:44,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:44,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:25:44,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:25:45,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-12 02:25:45,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 290 transitions, 5563 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:45,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:45,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-12 02:25:45,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:45,772 INFO L124 PetriNetUnfolderBase]: 337/858 cut-off events. [2023-11-12 02:25:45,772 INFO L125 PetriNetUnfolderBase]: For 14360/14362 co-relation queries the response was YES. [2023-11-12 02:25:45,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7638 conditions, 858 events. 337/858 cut-off events. For 14360/14362 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 5751 event pairs, 29 based on Foata normal form. 10/868 useless extension candidates. Maximal degree in co-relation 7546. Up to 283 conditions per place. [2023-11-12 02:25:45,785 INFO L140 encePairwiseOnDemand]: 125/141 looper letters, 221 selfloop transitions, 130 changer transitions 27/379 dead transitions. [2023-11-12 02:25:45,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 379 transitions, 7765 flow [2023-11-12 02:25:45,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:25:45,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:25:45,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 698 transitions. [2023-11-12 02:25:45,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41252955082742315 [2023-11-12 02:25:45,795 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 698 transitions. [2023-11-12 02:25:45,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 698 transitions. [2023-11-12 02:25:45,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:45,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 698 transitions. [2023-11-12 02:25:45,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 58.166666666666664) internal successors, (698), 12 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:45,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:45,802 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:45,802 INFO L175 Difference]: Start difference. First operand has 203 places, 290 transitions, 5563 flow. Second operand 12 states and 698 transitions. [2023-11-12 02:25:45,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 379 transitions, 7765 flow [2023-11-12 02:25:45,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 379 transitions, 7449 flow, removed 48 selfloop flow, removed 8 redundant places. [2023-11-12 02:25:45,985 INFO L231 Difference]: Finished difference. Result has 210 places, 307 transitions, 6022 flow [2023-11-12 02:25:45,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=5305, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6022, PETRI_PLACES=210, PETRI_TRANSITIONS=307} [2023-11-12 02:25:45,987 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 186 predicate places. [2023-11-12 02:25:45,987 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 307 transitions, 6022 flow [2023-11-12 02:25:45,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:45,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:45,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:45,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-12 02:25:45,988 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-12 02:25:45,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:45,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1133618408, now seen corresponding path program 16 times [2023-11-12 02:25:45,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:45,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52513986] [2023-11-12 02:25:45,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:45,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat