./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:10:29,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:10:29,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:10:29,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:10:29,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:10:29,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:10:29,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:10:29,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:10:29,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:10:29,789 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:10:29,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:10:29,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:10:29,792 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:10:29,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:10:29,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:10:29,792 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:10:29,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:10:29,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:10:29,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:10:29,793 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:10:29,793 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:10:29,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:10:29,797 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:10:29,797 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:10:29,798 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:10:29,798 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:10:29,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:10:29,798 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:10:29,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:10:29,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:10:29,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:10:29,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:10:29,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:10:29,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:10:29,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:10:29,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:10:29,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:10:29,799 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:10:29,799 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:10:29,800 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:10:29,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:10:29,801 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-10-14 17:10:29,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:10:30,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:10:30,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:10:30,028 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:10:30,029 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:10:30,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-10-14 17:10:31,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:10:31,532 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:10:31,532 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-10-14 17:10:31,556 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2825f599b/f9da6fdbe8aa468e9267ea8ed2357a0a/FLAGa94e9b6f8 [2024-10-14 17:10:31,573 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2825f599b/f9da6fdbe8aa468e9267ea8ed2357a0a [2024-10-14 17:10:31,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:10:31,577 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:10:31,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:10:31,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:10:31,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:10:31,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:10:31" (1/1) ... [2024-10-14 17:10:31,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380d64bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:31, skipping insertion in model container [2024-10-14 17:10:31,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:10:31" (1/1) ... [2024-10-14 17:10:31,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:10:31,993 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:31,994 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:31,994 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:31,995 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:32,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:10:32,040 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:10:32,125 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:32,126 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:32,126 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:32,128 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:32,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:10:32,198 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:10:32,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32 WrapperNode [2024-10-14 17:10:32,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:10:32,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:10:32,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:10:32,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:10:32,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (1/1) ... [2024-10-14 17:10:32,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (1/1) ... [2024-10-14 17:10:32,276 INFO L138 Inliner]: procedures = 279, calls = 73, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 498 [2024-10-14 17:10:32,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:10:32,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:10:32,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:10:32,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:10:32,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (1/1) ... [2024-10-14 17:10:32,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (1/1) ... [2024-10-14 17:10:32,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (1/1) ... [2024-10-14 17:10:32,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (1/1) ... [2024-10-14 17:10:32,315 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (1/1) ... [2024-10-14 17:10:32,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (1/1) ... [2024-10-14 17:10:32,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (1/1) ... [2024-10-14 17:10:32,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (1/1) ... [2024-10-14 17:10:32,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:10:32,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:10:32,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:10:32,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:10:32,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (1/1) ... [2024-10-14 17:10:32,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:10:32,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:10:32,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:10:32,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:10:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 17:10:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-14 17:10:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-14 17:10:32,414 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-14 17:10:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 17:10:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:10:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:10:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-14 17:10:32,415 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-14 17:10:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:10:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:10:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 17:10:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:10:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-14 17:10:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:10:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:10:32,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:10:32,418 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:10:32,569 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:10:32,570 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:10:33,099 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:10:33,099 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:10:33,134 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:10:33,134 INFO L314 CfgBuilder]: Removed 30 assume(true) statements. [2024-10-14 17:10:33,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:10:33 BoogieIcfgContainer [2024-10-14 17:10:33,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:10:33,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:10:33,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:10:33,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:10:33,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:10:31" (1/3) ... [2024-10-14 17:10:33,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54678117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:10:33, skipping insertion in model container [2024-10-14 17:10:33,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:32" (2/3) ... [2024-10-14 17:10:33,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54678117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:10:33, skipping insertion in model container [2024-10-14 17:10:33,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:10:33" (3/3) ... [2024-10-14 17:10:33,186 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-10-14 17:10:33,229 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:10:33,232 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-10-14 17:10:33,232 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:10:33,371 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-14 17:10:33,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 484 places, 527 transitions, 1074 flow [2024-10-14 17:10:33,592 INFO L124 PetriNetUnfolderBase]: 80/846 cut-off events. [2024-10-14 17:10:33,592 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-14 17:10:33,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 846 events. 80/846 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4221 event pairs, 0 based on Foata normal form. 0/715 useless extension candidates. Maximal degree in co-relation 442. Up to 8 conditions per place. [2024-10-14 17:10:33,605 INFO L82 GeneralOperation]: Start removeDead. Operand has 484 places, 527 transitions, 1074 flow [2024-10-14 17:10:33,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 484 places, 527 transitions, 1074 flow [2024-10-14 17:10:33,619 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:10:33,624 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;@6580647f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:10:33,624 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-10-14 17:10:33,629 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:10:33,629 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-10-14 17:10:33,629 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:10:33,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:33,630 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] [2024-10-14 17:10:33,630 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-10-14 17:10:33,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:33,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1762918973, now seen corresponding path program 1 times [2024-10-14 17:10:33,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:33,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572037913] [2024-10-14 17:10:33,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:33,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:34,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:34,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:34,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572037913] [2024-10-14 17:10:34,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572037913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:34,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:34,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:10:34,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059714496] [2024-10-14 17:10:34,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:34,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:34,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:34,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:34,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:10:34,828 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 527 [2024-10-14 17:10:34,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 527 transitions, 1074 flow. Second operand has 6 states, 6 states have (on average 350.3333333333333) internal successors, (2102), 6 states have internal predecessors, (2102), 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) [2024-10-14 17:10:34,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:34,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 527 [2024-10-14 17:10:34,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:45,609 INFO L124 PetriNetUnfolderBase]: 39310/100338 cut-off events. [2024-10-14 17:10:45,610 INFO L125 PetriNetUnfolderBase]: For 951/1140 co-relation queries the response was YES. [2024-10-14 17:10:45,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158481 conditions, 100338 events. 39310/100338 cut-off events. For 951/1140 co-relation queries the response was YES. Maximal size of possible extension queue 2045. Compared 1254121 event pairs, 34452 based on Foata normal form. 18854/110472 useless extension candidates. Maximal degree in co-relation 154353. Up to 57748 conditions per place. [2024-10-14 17:10:46,262 INFO L140 encePairwiseOnDemand]: 479/527 looper letters, 128 selfloop transitions, 10 changer transitions 0/485 dead transitions. [2024-10-14 17:10:46,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 485 transitions, 1266 flow [2024-10-14 17:10:46,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:10:46,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:10:46,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2270 transitions. [2024-10-14 17:10:46,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7179000632511069 [2024-10-14 17:10:46,284 INFO L175 Difference]: Start difference. First operand has 484 places, 527 transitions, 1074 flow. Second operand 6 states and 2270 transitions. [2024-10-14 17:10:46,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 485 transitions, 1266 flow [2024-10-14 17:10:46,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 485 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:10:46,302 INFO L231 Difference]: Finished difference. Result has 483 places, 485 transitions, 1010 flow [2024-10-14 17:10:46,304 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=527, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1010, PETRI_PLACES=483, PETRI_TRANSITIONS=485} [2024-10-14 17:10:46,306 INFO L277 CegarLoopForPetriNet]: 484 programPoint places, -1 predicate places. [2024-10-14 17:10:46,308 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 485 transitions, 1010 flow [2024-10-14 17:10:46,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 350.3333333333333) internal successors, (2102), 6 states have internal predecessors, (2102), 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) [2024-10-14 17:10:46,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:46,310 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] [2024-10-14 17:10:46,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:10:46,311 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-10-14 17:10:46,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:46,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1696365998, now seen corresponding path program 1 times [2024-10-14 17:10:46,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:46,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131234863] [2024-10-14 17:10:46,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:46,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:46,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:46,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:46,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131234863] [2024-10-14 17:10:46,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131234863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:46,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:46,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:10:46,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005377771] [2024-10-14 17:10:46,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:46,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:10:46,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:46,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:10:46,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:10:46,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 527 [2024-10-14 17:10:46,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 485 transitions, 1010 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 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) [2024-10-14 17:10:46,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:46,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 527 [2024-10-14 17:10:46,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:47,116 INFO L124 PetriNetUnfolderBase]: 390/4161 cut-off events. [2024-10-14 17:10:47,117 INFO L125 PetriNetUnfolderBase]: For 186/187 co-relation queries the response was YES. [2024-10-14 17:10:47,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4833 conditions, 4161 events. 390/4161 cut-off events. For 186/187 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 38448 event pairs, 264 based on Foata normal form. 1/3771 useless extension candidates. Maximal degree in co-relation 4576. Up to 567 conditions per place. [2024-10-14 17:10:47,153 INFO L140 encePairwiseOnDemand]: 524/527 looper letters, 27 selfloop transitions, 2 changer transitions 0/486 dead transitions. [2024-10-14 17:10:47,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 486 transitions, 1070 flow [2024-10-14 17:10:47,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:10:47,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:10:47,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1413 transitions. [2024-10-14 17:10:47,156 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8937381404174574 [2024-10-14 17:10:47,156 INFO L175 Difference]: Start difference. First operand has 483 places, 485 transitions, 1010 flow. Second operand 3 states and 1413 transitions. [2024-10-14 17:10:47,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 486 transitions, 1070 flow [2024-10-14 17:10:47,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 486 transitions, 1050 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:10:47,166 INFO L231 Difference]: Finished difference. Result has 481 places, 486 transitions, 1002 flow [2024-10-14 17:10:47,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=527, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1002, PETRI_PLACES=481, PETRI_TRANSITIONS=486} [2024-10-14 17:10:47,167 INFO L277 CegarLoopForPetriNet]: 484 programPoint places, -3 predicate places. [2024-10-14 17:10:47,168 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 486 transitions, 1002 flow [2024-10-14 17:10:47,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 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) [2024-10-14 17:10:47,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:47,169 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] [2024-10-14 17:10:47,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:10:47,169 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-10-14 17:10:47,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:47,170 INFO L85 PathProgramCache]: Analyzing trace with hash 50588930, now seen corresponding path program 1 times [2024-10-14 17:10:47,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:47,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340760720] [2024-10-14 17:10:47,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:47,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:47,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:47,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:47,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340760720] [2024-10-14 17:10:47,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340760720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:47,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:47,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:10:47,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54778687] [2024-10-14 17:10:47,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:47,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:47,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:47,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:47,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:10:48,106 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 527 [2024-10-14 17:10:48,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 486 transitions, 1002 flow. Second operand has 6 states, 6 states have (on average 350.3333333333333) internal successors, (2102), 6 states have internal predecessors, (2102), 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) [2024-10-14 17:10:48,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:48,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 527 [2024-10-14 17:10:48,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:00,583 INFO L124 PetriNetUnfolderBase]: 39311/100278 cut-off events. [2024-10-14 17:11:00,583 INFO L125 PetriNetUnfolderBase]: For 966/1155 co-relation queries the response was YES. [2024-10-14 17:11:00,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158472 conditions, 100278 events. 39311/100278 cut-off events. For 966/1155 co-relation queries the response was YES. Maximal size of possible extension queue 2044. Compared 1251307 event pairs, 34452 based on Foata normal form. 0/91593 useless extension candidates. Maximal degree in co-relation 158273. Up to 57782 conditions per place. [2024-10-14 17:11:01,314 INFO L140 encePairwiseOnDemand]: 515/527 looper letters, 128 selfloop transitions, 10 changer transitions 0/484 dead transitions. [2024-10-14 17:11:01,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 484 transitions, 1274 flow [2024-10-14 17:11:01,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:11:01,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:11:01,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2234 transitions. [2024-10-14 17:11:01,329 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7065148640101202 [2024-10-14 17:11:01,330 INFO L175 Difference]: Start difference. First operand has 481 places, 486 transitions, 1002 flow. Second operand 6 states and 2234 transitions. [2024-10-14 17:11:01,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 484 transitions, 1274 flow [2024-10-14 17:11:01,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 484 transitions, 1272 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:11:01,345 INFO L231 Difference]: Finished difference. Result has 483 places, 484 transitions, 1016 flow [2024-10-14 17:11:01,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=527, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1016, PETRI_PLACES=483, PETRI_TRANSITIONS=484} [2024-10-14 17:11:01,351 INFO L277 CegarLoopForPetriNet]: 484 programPoint places, -1 predicate places. [2024-10-14 17:11:01,351 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 484 transitions, 1016 flow [2024-10-14 17:11:01,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 350.3333333333333) internal successors, (2102), 6 states have internal predecessors, (2102), 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) [2024-10-14 17:11:01,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:01,353 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] [2024-10-14 17:11:01,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:11:01,354 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-10-14 17:11:01,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:01,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1965110496, now seen corresponding path program 1 times [2024-10-14 17:11:01,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:01,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561369070] [2024-10-14 17:11:01,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:01,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:01,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:01,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:01,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561369070] [2024-10-14 17:11:01,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561369070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:01,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:01,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:11:01,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411894606] [2024-10-14 17:11:01,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:01,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:11:01,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:01,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:11:01,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:11:02,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 527 [2024-10-14 17:11:02,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 484 transitions, 1016 flow. Second operand has 6 states, 6 states have (on average 350.6666666666667) internal successors, (2104), 6 states have internal predecessors, (2104), 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) [2024-10-14 17:11:02,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:02,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 527 [2024-10-14 17:11:02,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand