./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5adb63485f34d5cafa0d99a2c73701114544138d3e69ca15b00fc732949a8202 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:14,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:14,269 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:15:14,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:14,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:14,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:14,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:14,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:14,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:14,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:14,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:14,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:14,312 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:14,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:14,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:15:14,316 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:15:14,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:14,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:15:14,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:14,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:15:14,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:14,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:15:14,319 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:15:14,319 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:14,319 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:15:14,319 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:15:14,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:15:14,320 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:14,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:14,321 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:14,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:14,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:14,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:14,322 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:14,322 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:15:14,323 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:15:14,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:15:14,323 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:14,323 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:14,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:14,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:14,325 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_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5adb63485f34d5cafa0d99a2c73701114544138d3e69ca15b00fc732949a8202 [2024-10-31 22:15:14,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:14,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:14,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:14,707 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:14,708 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:14,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-3.i Unable to find full path for "g++" [2024-10-31 22:15:16,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:17,073 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:17,074 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-3.i [2024-10-31 22:15:17,088 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/data/217f6f9c7/755b4ba42ec8445da56c490e291abcf9/FLAG02093a0f2 [2024-10-31 22:15:17,112 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/data/217f6f9c7/755b4ba42ec8445da56c490e291abcf9 [2024-10-31 22:15:17,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:17,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:17,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:17,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:17,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:17,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:17,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44425c25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17, skipping insertion in model container [2024-10-31 22:15:17,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:17,191 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:17,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:17,711 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:17,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:17,890 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:17,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17 WrapperNode [2024-10-31 22:15:17,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:17,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:17,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:17,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:17,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:17,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:17,985 INFO L138 Inliner]: procedures = 159, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 218 [2024-10-31 22:15:17,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:17,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:17,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:17,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:18,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:18,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:18,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:18,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:18,028 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:18,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:18,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:18,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:18,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:18,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:18,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:18,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:18,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (1/1) ... [2024-10-31 22:15:18,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:18,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:18,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:18,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434e1ab5-7d94-4a1d-962f-cafddc423ce0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:15:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:15:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:15:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-31 22:15:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-31 22:15:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:15:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:18,122 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:15:18,304 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:18,307 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:18,866 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:15:18,866 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:18,929 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:18,929 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:15:18,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:18 BoogieIcfgContainer [2024-10-31 22:15:18,930 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:18,932 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:18,932 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:18,936 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:18,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:17" (1/3) ... [2024-10-31 22:15:18,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a148f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:18, skipping insertion in model container [2024-10-31 22:15:18,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:17" (2/3) ... [2024-10-31 22:15:18,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a148f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:18, skipping insertion in model container [2024-10-31 22:15:18,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:18" (3/3) ... [2024-10-31 22:15:18,940 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-race-3.i [2024-10-31 22:15:18,959 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:18,960 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-31 22:15:18,960 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:15:19,061 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:15:19,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 278 transitions, 560 flow [2024-10-31 22:15:19,372 INFO L124 PetriNetUnfolderBase]: 13/327 cut-off events. [2024-10-31 22:15:19,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:19,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 327 events. 13/327 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 471 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 208. Up to 4 conditions per place. [2024-10-31 22:15:19,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 273 places, 278 transitions, 560 flow [2024-10-31 22:15:19,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 273 places, 278 transitions, 560 flow [2024-10-31 22:15:19,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:19,422 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ad46e7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:19,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-10-31 22:15:19,482 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:15:19,482 INFO L124 PetriNetUnfolderBase]: 2/172 cut-off events. [2024-10-31 22:15:19,482 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:19,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:19,484 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:19,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-31 22:15:19,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:19,490 INFO L85 PathProgramCache]: Analyzing trace with hash 722793653, now seen corresponding path program 1 times [2024-10-31 22:15:19,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:19,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894222094] [2024-10-31 22:15:19,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:19,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:20,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:20,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894222094] [2024-10-31 22:15:20,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894222094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:20,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:20,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:20,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389894238] [2024-10-31 22:15:20,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:20,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:20,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:20,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:20,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:20,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 278 [2024-10-31 22:15:20,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 278 transitions, 560 flow. Second operand has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:20,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:20,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 278 [2024-10-31 22:15:20,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:20,911 INFO L124 PetriNetUnfolderBase]: 424/1926 cut-off events. [2024-10-31 22:15:20,912 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:15:20,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2764 conditions, 1926 events. 424/1926 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 13557 event pairs, 76 based on Foata normal form. 46/1783 useless extension candidates. Maximal degree in co-relation 2538. Up to 510 conditions per place. [2024-10-31 22:15:20,935 INFO L140 encePairwiseOnDemand]: 261/278 looper letters, 51 selfloop transitions, 8 changer transitions 1/297 dead transitions. [2024-10-31 22:15:20,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 297 transitions, 716 flow [2024-10-31 22:15:20,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:20,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2024-10-31 22:15:20,958 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9424460431654677 [2024-10-31 22:15:20,963 INFO L175 Difference]: Start difference. First operand has 273 places, 278 transitions, 560 flow. Second operand 3 states and 786 transitions. [2024-10-31 22:15:20,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 297 transitions, 716 flow [2024-10-31 22:15:20,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 297 transitions, 716 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:20,978 INFO L231 Difference]: Finished difference. Result has 275 places, 276 transitions, 604 flow [2024-10-31 22:15:20,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=275, PETRI_TRANSITIONS=276} [2024-10-31 22:15:20,986 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, 2 predicate places. [2024-10-31 22:15:20,987 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 276 transitions, 604 flow [2024-10-31 22:15:20,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:20,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:20,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:20,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:15:20,988 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-31 22:15:20,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:20,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1536541362, now seen corresponding path program 1 times [2024-10-31 22:15:20,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:20,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293005304] [2024-10-31 22:15:20,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:20,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:21,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:21,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293005304] [2024-10-31 22:15:21,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293005304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:21,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:21,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:21,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847513018] [2024-10-31 22:15:21,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:21,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:21,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:21,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:21,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:21,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 278 [2024-10-31 22:15:21,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 276 transitions, 604 flow. Second operand has 3 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:21,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:21,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 278 [2024-10-31 22:15:21,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:21,842 INFO L124 PetriNetUnfolderBase]: 480/2157 cut-off events. [2024-10-31 22:15:21,842 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-10-31 22:15:21,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3257 conditions, 2157 events. 480/2157 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 16071 event pairs, 280 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 3024. Up to 755 conditions per place. [2024-10-31 22:15:21,853 INFO L140 encePairwiseOnDemand]: 273/278 looper letters, 38 selfloop transitions, 4 changer transitions 0/289 dead transitions. [2024-10-31 22:15:21,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 289 transitions, 714 flow [2024-10-31 22:15:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:21,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:21,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 775 transitions. [2024-10-31 22:15:21,856 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9292565947242206 [2024-10-31 22:15:21,856 INFO L175 Difference]: Start difference. First operand has 275 places, 276 transitions, 604 flow. Second operand 3 states and 775 transitions. [2024-10-31 22:15:21,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 289 transitions, 714 flow [2024-10-31 22:15:21,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 289 transitions, 698 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:21,866 INFO L231 Difference]: Finished difference. Result has 276 places, 279 transitions, 618 flow [2024-10-31 22:15:21,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=276, PETRI_TRANSITIONS=279} [2024-10-31 22:15:21,867 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, 3 predicate places. [2024-10-31 22:15:21,868 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 279 transitions, 618 flow [2024-10-31 22:15:21,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:21,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:21,869 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:21,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:15:21,870 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-31 22:15:21,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:21,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1432187219, now seen corresponding path program 1 times [2024-10-31 22:15:21,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:21,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081821076] [2024-10-31 22:15:21,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:21,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:22,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:22,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081821076] [2024-10-31 22:15:22,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081821076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:22,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:22,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:22,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823056426] [2024-10-31 22:15:22,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:22,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:22,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:22,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:22,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:22,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 278 [2024-10-31 22:15:22,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 279 transitions, 618 flow. Second operand has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:22,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:22,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 278 [2024-10-31 22:15:22,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:22,773 INFO L124 PetriNetUnfolderBase]: 506/2237 cut-off events. [2024-10-31 22:15:22,773 INFO L125 PetriNetUnfolderBase]: For 156/159 co-relation queries the response was YES. [2024-10-31 22:15:22,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3508 conditions, 2237 events. 506/2237 cut-off events. For 156/159 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 16498 event pairs, 275 based on Foata normal form. 0/2015 useless extension candidates. Maximal degree in co-relation 3273. Up to 851 conditions per place. [2024-10-31 22:15:22,791 INFO L140 encePairwiseOnDemand]: 272/278 looper letters, 44 selfloop transitions, 7 changer transitions 0/295 dead transitions. [2024-10-31 22:15:22,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 295 transitions, 760 flow [2024-10-31 22:15:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:22,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:22,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 772 transitions. [2024-10-31 22:15:22,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9256594724220624 [2024-10-31 22:15:22,795 INFO L175 Difference]: Start difference. First operand has 276 places, 279 transitions, 618 flow. Second operand 3 states and 772 transitions. [2024-10-31 22:15:22,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 295 transitions, 760 flow [2024-10-31 22:15:22,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 295 transitions, 752 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:22,804 INFO L231 Difference]: Finished difference. Result has 278 places, 285 transitions, 672 flow [2024-10-31 22:15:22,804 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=672, PETRI_PLACES=278, PETRI_TRANSITIONS=285} [2024-10-31 22:15:22,805 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, 5 predicate places. [2024-10-31 22:15:22,806 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 285 transitions, 672 flow [2024-10-31 22:15:22,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:22,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:22,807 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:22,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:15:22,808 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-31 22:15:22,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:22,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1441620437, now seen corresponding path program 1 times [2024-10-31 22:15:22,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:22,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375623502] [2024-10-31 22:15:22,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:22,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:15:22,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:15:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:15:23,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:15:23,037 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:15:23,039 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-10-31 22:15:23,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-10-31 22:15:23,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-10-31 22:15:23,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-10-31 22:15:23,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-10-31 22:15:23,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-10-31 22:15:23,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2024-10-31 22:15:23,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-10-31 22:15:23,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-10-31 22:15:23,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-10-31 22:15:23,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-10-31 22:15:23,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-10-31 22:15:23,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-10-31 22:15:23,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-10-31 22:15:23,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-10-31 22:15:23,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-10-31 22:15:23,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-10-31 22:15:23,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:15:23,047 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:15:23,051 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:15:23,051 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:15:23,109 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:15:23,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 339 transitions, 688 flow [2024-10-31 22:15:23,205 INFO L124 PetriNetUnfolderBase]: 20/445 cut-off events. [2024-10-31 22:15:23,205 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:15:23,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 445 events. 20/445 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1041 event pairs, 0 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 328. Up to 6 conditions per place. [2024-10-31 22:15:23,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 339 transitions, 688 flow [2024-10-31 22:15:23,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 334 places, 339 transitions, 688 flow [2024-10-31 22:15:23,216 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:23,221 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ad46e7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:23,221 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-31 22:15:23,240 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:15:23,240 INFO L124 PetriNetUnfolderBase]: 2/172 cut-off events. [2024-10-31 22:15:23,240 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:23,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:23,240 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:23,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:15:23,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:23,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1812056, now seen corresponding path program 1 times [2024-10-31 22:15:23,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:23,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128518958] [2024-10-31 22:15:23,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:23,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:23,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:23,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128518958] [2024-10-31 22:15:23,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128518958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:23,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:23,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:23,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866327614] [2024-10-31 22:15:23,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:23,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:23,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:23,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:23,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:23,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 339 [2024-10-31 22:15:23,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 339 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:23,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:23,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 339 [2024-10-31 22:15:23,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:33,610 INFO L124 PetriNetUnfolderBase]: 18901/48786 cut-off events. [2024-10-31 22:15:33,611 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-10-31 22:15:33,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77588 conditions, 48786 events. 18901/48786 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 1229. Compared 588884 event pairs, 5784 based on Foata normal form. 1575/44959 useless extension candidates. Maximal degree in co-relation 74739. Up to 15941 conditions per place. [2024-10-31 22:15:34,076 INFO L140 encePairwiseOnDemand]: 311/339 looper letters, 85 selfloop transitions, 16 changer transitions 1/380 dead transitions. [2024-10-31 22:15:34,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 380 transitions, 977 flow [2024-10-31 22:15:34,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:34,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:34,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 955 transitions. [2024-10-31 22:15:34,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9390363815142576 [2024-10-31 22:15:34,081 INFO L175 Difference]: Start difference. First operand has 334 places, 339 transitions, 688 flow. Second operand 3 states and 955 transitions. [2024-10-31 22:15:34,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 380 transitions, 977 flow [2024-10-31 22:15:34,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 380 transitions, 977 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:34,091 INFO L231 Difference]: Finished difference. Result has 338 places, 348 transitions, 814 flow [2024-10-31 22:15:34,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=814, PETRI_PLACES=338, PETRI_TRANSITIONS=348} [2024-10-31 22:15:34,093 INFO L277 CegarLoopForPetriNet]: 334 programPoint places, 4 predicate places. [2024-10-31 22:15:34,093 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 348 transitions, 814 flow [2024-10-31 22:15:34,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:34,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:34,094 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:34,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:15:34,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:15:34,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:34,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1509840626, now seen corresponding path program 1 times [2024-10-31 22:15:34,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:34,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762429213] [2024-10-31 22:15:34,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:34,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:34,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:34,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762429213] [2024-10-31 22:15:34,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762429213] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:34,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:34,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:34,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335295526] [2024-10-31 22:15:34,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:34,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:34,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:34,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:34,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:34,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 339 [2024-10-31 22:15:34,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 348 transitions, 814 flow. Second operand has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:34,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:34,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 339 [2024-10-31 22:15:34,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:42,823 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([958] L722-6-->L721-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][184], [106#L707-6true, Black: 337#true, 335#true, 11#L707-1true, 339#(= |#race~threads_alive~0| 0), 226#L721-1true, 333#true, 342#true]) [2024-10-31 22:15:42,823 INFO L294 olderBase$Statistics]: this new event has 248 ancestors and is cut-off event [2024-10-31 22:15:42,823 INFO L297 olderBase$Statistics]: existing Event has 248 ancestors and is cut-off event [2024-10-31 22:15:42,823 INFO L297 olderBase$Statistics]: existing Event has 243 ancestors and is cut-off event [2024-10-31 22:15:42,823 INFO L297 olderBase$Statistics]: existing Event has 248 ancestors and is cut-off event [2024-10-31 22:15:42,866 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([774] L728-4-->L730-2: Formula: (and (= 0 |v_ULTIMATE.start_main_#t~ret31#1_7|) (= (store |v_#pthreadsMutex_62| |v_~#threads_alive_mutex~0.base_29| (store (select |v_#pthreadsMutex_62| |v_~#threads_alive_mutex~0.base_29|) |v_~#threads_alive_mutex~0.offset_29| 0)) |v_#pthreadsMutex_61|)) InVars {#pthreadsMutex=|v_#pthreadsMutex_62|, ~#threads_alive_mutex~0.offset=|v_~#threads_alive_mutex~0.offset_29|, ~#threads_alive_mutex~0.base=|v_~#threads_alive_mutex~0.base_29|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_61|, ~#threads_alive_mutex~0.offset=|v_~#threads_alive_mutex~0.offset_29|, ULTIMATE.start_main_#t~ret31#1=|v_ULTIMATE.start_main_#t~ret31#1_7|, ~#threads_alive_mutex~0.base=|v_~#threads_alive_mutex~0.base_29|} AuxVars[] AssignedVars[#pthreadsMutex, ULTIMATE.start_main_#t~ret31#1][225], [298#L709-3true, Black: 337#true, 190#L693-3true, 335#true, 339#(= |#race~threads_alive~0| 0), 222#L730-2true, 333#true, 342#true]) [2024-10-31 22:15:42,866 INFO L294 olderBase$Statistics]: this new event has 249 ancestors and is cut-off event [2024-10-31 22:15:42,866 INFO L297 olderBase$Statistics]: existing Event has 249 ancestors and is cut-off event [2024-10-31 22:15:42,867 INFO L297 olderBase$Statistics]: existing Event has 244 ancestors and is cut-off event [2024-10-31 22:15:42,867 INFO L297 olderBase$Statistics]: existing Event has 244 ancestors and is cut-off event [2024-10-31 22:15:42,867 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([913] L729-->L729-3: Formula: (and (= |v_#pthreadsMutex_45| (store |v_#pthreadsMutex_46| |v_~#threads_alive_mutex~0.base_21| (store (select |v_#pthreadsMutex_46| |v_~#threads_alive_mutex~0.base_21|) |v_~#threads_alive_mutex~0.offset_21| 0))) (= 0 |v_ULTIMATE.start_main_#t~ret29#1_6|)) InVars {#pthreadsMutex=|v_#pthreadsMutex_46|, ~#threads_alive_mutex~0.offset=|v_~#threads_alive_mutex~0.offset_21|, ~#threads_alive_mutex~0.base=|v_~#threads_alive_mutex~0.base_21|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_45|, ~#threads_alive_mutex~0.offset=|v_~#threads_alive_mutex~0.offset_21|, ULTIMATE.start_main_#t~ret29#1=|v_ULTIMATE.start_main_#t~ret29#1_6|, ~#threads_alive_mutex~0.base=|v_~#threads_alive_mutex~0.base_21|} AuxVars[] AssignedVars[#pthreadsMutex, ULTIMATE.start_main_#t~ret29#1][226], [298#L709-3true, Black: 337#true, 190#L693-3true, 335#true, 339#(= |#race~threads_alive~0| 0), 313#L729-3true, 333#true, 342#true]) [2024-10-31 22:15:42,867 INFO L294 olderBase$Statistics]: this new event has 249 ancestors and is cut-off event [2024-10-31 22:15:42,868 INFO L297 olderBase$Statistics]: existing Event has 249 ancestors and is cut-off event [2024-10-31 22:15:42,868 INFO L297 olderBase$Statistics]: existing Event has 244 ancestors and is cut-off event [2024-10-31 22:15:42,868 INFO L297 olderBase$Statistics]: existing Event has 244 ancestors and is cut-off event [2024-10-31 22:15:43,017 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([958] L722-6-->L721-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][184], [106#L707-6true, Black: 337#true, 335#true, 339#(= |#race~threads_alive~0| 0), 226#L721-1true, 333#true, 125#L707-2true, 342#true]) [2024-10-31 22:15:43,017 INFO L294 olderBase$Statistics]: this new event has 249 ancestors and is cut-off event [2024-10-31 22:15:43,017 INFO L297 olderBase$Statistics]: existing Event has 249 ancestors and is cut-off event [2024-10-31 22:15:43,017 INFO L297 olderBase$Statistics]: existing Event has 249 ancestors and is cut-off event [2024-10-31 22:15:43,017 INFO L297 olderBase$Statistics]: existing Event has 244 ancestors and is cut-off event [2024-10-31 22:15:44,018 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([958] L722-6-->L721-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][166], [106#L707-6true, Black: 337#true, 335#true, 339#(= |#race~threads_alive~0| 0), 226#L721-1true, 333#true, 342#true, 94#L707-6true]) [2024-10-31 22:15:44,019 INFO L294 olderBase$Statistics]: this new event has 253 ancestors and is cut-off event [2024-10-31 22:15:44,019 INFO L297 olderBase$Statistics]: existing Event has 253 ancestors and is cut-off event [2024-10-31 22:15:44,019 INFO L297 olderBase$Statistics]: existing Event has 253 ancestors and is cut-off event [2024-10-31 22:15:44,019 INFO L297 olderBase$Statistics]: existing Event has 248 ancestors and is cut-off event [2024-10-31 22:15:45,029 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][214], [324#L707-1true, Black: 337#true, 335#true, 11#L707-1true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 342#true]) [2024-10-31 22:15:45,029 INFO L294 olderBase$Statistics]: this new event has 259 ancestors and is cut-off event [2024-10-31 22:15:45,029 INFO L297 olderBase$Statistics]: existing Event has 254 ancestors and is cut-off event [2024-10-31 22:15:45,029 INFO L297 olderBase$Statistics]: existing Event has 259 ancestors and is cut-off event [2024-10-31 22:15:45,029 INFO L297 olderBase$Statistics]: existing Event has 254 ancestors and is cut-off event [2024-10-31 22:15:45,115 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][214], [324#L707-1true, Black: 337#true, 335#true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 125#L707-2true, 342#true]) [2024-10-31 22:15:45,115 INFO L294 olderBase$Statistics]: this new event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,116 INFO L297 olderBase$Statistics]: existing Event has 255 ancestors and is cut-off event [2024-10-31 22:15:45,116 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,116 INFO L297 olderBase$Statistics]: existing Event has 255 ancestors and is cut-off event [2024-10-31 22:15:45,116 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][214], [Black: 337#true, 335#true, 276#L707-2true, 11#L707-1true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 342#true]) [2024-10-31 22:15:45,116 INFO L294 olderBase$Statistics]: this new event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,116 INFO L297 olderBase$Statistics]: existing Event has 255 ancestors and is cut-off event [2024-10-31 22:15:45,116 INFO L297 olderBase$Statistics]: existing Event has 255 ancestors and is cut-off event [2024-10-31 22:15:45,116 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,233 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][214], [Black: 337#true, 335#true, 276#L707-2true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 125#L707-2true, 342#true]) [2024-10-31 22:15:45,234 INFO L294 olderBase$Statistics]: this new event has 261 ancestors and is cut-off event [2024-10-31 22:15:45,234 INFO L297 olderBase$Statistics]: existing Event has 256 ancestors and is cut-off event [2024-10-31 22:15:45,234 INFO L297 olderBase$Statistics]: existing Event has 256 ancestors and is cut-off event [2024-10-31 22:15:45,234 INFO L297 olderBase$Statistics]: existing Event has 261 ancestors and is cut-off event [2024-10-31 22:15:45,519 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][287], [324#L707-1true, Black: 337#true, 335#true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 94#L707-6true, 342#true]) [2024-10-31 22:15:45,519 INFO L294 olderBase$Statistics]: this new event has 264 ancestors and is cut-off event [2024-10-31 22:15:45,519 INFO L297 olderBase$Statistics]: existing Event has 259 ancestors and is cut-off event [2024-10-31 22:15:45,519 INFO L297 olderBase$Statistics]: existing Event has 259 ancestors and is cut-off event [2024-10-31 22:15:45,519 INFO L297 olderBase$Statistics]: existing Event has 264 ancestors and is cut-off event [2024-10-31 22:15:45,520 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][287], [106#L707-6true, Black: 337#true, 335#true, 11#L707-1true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 342#true]) [2024-10-31 22:15:45,520 INFO L294 olderBase$Statistics]: this new event has 264 ancestors and is cut-off event [2024-10-31 22:15:45,520 INFO L297 olderBase$Statistics]: existing Event has 259 ancestors and is cut-off event [2024-10-31 22:15:45,521 INFO L297 olderBase$Statistics]: existing Event has 264 ancestors and is cut-off event [2024-10-31 22:15:45,521 INFO L297 olderBase$Statistics]: existing Event has 259 ancestors and is cut-off event [2024-10-31 22:15:45,603 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][287], [Black: 337#true, 335#true, 276#L707-2true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 94#L707-6true, 342#true]) [2024-10-31 22:15:45,603 INFO L294 olderBase$Statistics]: this new event has 265 ancestors and is cut-off event [2024-10-31 22:15:45,603 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,603 INFO L297 olderBase$Statistics]: existing Event has 265 ancestors and is cut-off event [2024-10-31 22:15:45,603 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,604 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][214], [Black: 337#true, 335#true, 276#L707-2true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 94#L707-6true, 342#true]) [2024-10-31 22:15:45,604 INFO L294 olderBase$Statistics]: this new event has 265 ancestors and is cut-off event [2024-10-31 22:15:45,604 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,604 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,604 INFO L297 olderBase$Statistics]: existing Event has 265 ancestors and is cut-off event [2024-10-31 22:15:45,605 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][287], [Black: 337#true, 335#true, 191#threadErr4ASSERT_VIOLATIONDATA_RACEtrue, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 94#L707-6true, 342#true]) [2024-10-31 22:15:45,605 INFO L294 olderBase$Statistics]: this new event has 265 ancestors and is cut-off event [2024-10-31 22:15:45,605 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,605 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,605 INFO L297 olderBase$Statistics]: existing Event has 265 ancestors and is cut-off event [2024-10-31 22:15:45,606 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][287], [106#L707-6true, Black: 337#true, 335#true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 125#L707-2true, 342#true]) [2024-10-31 22:15:45,606 INFO L294 olderBase$Statistics]: this new event has 265 ancestors and is cut-off event [2024-10-31 22:15:45,606 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,606 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,606 INFO L297 olderBase$Statistics]: existing Event has 265 ancestors and is cut-off event [2024-10-31 22:15:45,607 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][214], [106#L707-6true, Black: 337#true, 335#true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 125#L707-2true, 342#true]) [2024-10-31 22:15:45,607 INFO L294 olderBase$Statistics]: this new event has 265 ancestors and is cut-off event [2024-10-31 22:15:45,607 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,607 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,607 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,608 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][287], [106#L707-6true, Black: 337#true, 335#true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 142#threadErr4ASSERT_VIOLATIONDATA_RACEtrue, 333#true, 342#true]) [2024-10-31 22:15:45,608 INFO L294 olderBase$Statistics]: this new event has 265 ancestors and is cut-off event [2024-10-31 22:15:45,608 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,608 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:15:45,608 INFO L297 olderBase$Statistics]: existing Event has 265 ancestors and is cut-off event [2024-10-31 22:15:46,033 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([978] L729-6-->L728-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][287], [106#L707-6true, Black: 337#true, 335#true, 339#(= |#race~threads_alive~0| 0), 223#L728-1true, 333#true, 94#L707-6true, 342#true]) [2024-10-31 22:15:46,033 INFO L294 olderBase$Statistics]: this new event has 269 ancestors and is cut-off event [2024-10-31 22:15:46,033 INFO L297 olderBase$Statistics]: existing Event has 264 ancestors and is cut-off event [2024-10-31 22:15:46,033 INFO L297 olderBase$Statistics]: existing Event has 264 ancestors and is cut-off event [2024-10-31 22:15:46,034 INFO L297 olderBase$Statistics]: existing Event has 264 ancestors and is cut-off event [2024-10-31 22:15:46,246 INFO L124 PetriNetUnfolderBase]: 19313/56801 cut-off events. [2024-10-31 22:15:46,246 INFO L125 PetriNetUnfolderBase]: For 2178/2359 co-relation queries the response was YES. [2024-10-31 22:15:46,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91811 conditions, 56801 events. 19313/56801 cut-off events. For 2178/2359 co-relation queries the response was YES. Maximal size of possible extension queue 1559. Compared 752561 event pairs, 12819 based on Foata normal form. 0/50577 useless extension candidates. Maximal degree in co-relation 88422. Up to 22876 conditions per place. [2024-10-31 22:15:46,768 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 60 selfloop transitions, 5 changer transitions 0/372 dead transitions. [2024-10-31 22:15:46,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 372 transitions, 992 flow [2024-10-31 22:15:46,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:46,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:46,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 942 transitions. [2024-10-31 22:15:46,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9262536873156342 [2024-10-31 22:15:46,773 INFO L175 Difference]: Start difference. First operand has 338 places, 348 transitions, 814 flow. Second operand 3 states and 942 transitions. [2024-10-31 22:15:46,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 372 transitions, 992 flow [2024-10-31 22:15:46,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 372 transitions, 960 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:46,828 INFO L231 Difference]: Finished difference. Result has 339 places, 352 transitions, 820 flow [2024-10-31 22:15:46,829 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=820, PETRI_PLACES=339, PETRI_TRANSITIONS=352} [2024-10-31 22:15:46,829 INFO L277 CegarLoopForPetriNet]: 334 programPoint places, 5 predicate places. [2024-10-31 22:15:46,830 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 352 transitions, 820 flow [2024-10-31 22:15:46,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:46,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:46,832 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:46,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:15:46,833 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:15:46,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:46,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1592158460, now seen corresponding path program 1 times [2024-10-31 22:15:46,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:46,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436996499] [2024-10-31 22:15:46,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:46,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:46,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:46,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:46,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436996499] [2024-10-31 22:15:46,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436996499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:46,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:46,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:46,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624179143] [2024-10-31 22:15:46,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:46,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:46,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:46,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:46,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:47,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 339 [2024-10-31 22:15:47,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 352 transitions, 820 flow. Second operand has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:47,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:47,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 339 [2024-10-31 22:15:47,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand