./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 387879bf92b16ead997b40b3e249348f8a6b399496756f9bc3c41b6dc3c21353 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:32:42,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:32:42,196 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:32:42,202 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:32:42,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:32:42,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:32:42,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:32:42,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:32:42,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:32:42,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:32:42,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:32:42,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:32:42,233 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:32:42,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:32:42,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:32:42,233 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:32:42,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:32:42,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:32:42,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:32:42,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:32:42,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:32:42,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:32:42,234 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:32:42,234 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:32:42,234 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:32:42,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:32:42,234 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:32:42,234 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:32:42,234 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:32:42,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:32:42,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:32:42,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:32:42,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:32:42,235 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:32:42,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:32:42,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:32:42,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:32:42,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:32:42,236 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:32:42,236 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:32:42,236 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:32:42,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:32:42,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:32:42,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:32:42,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:32:42,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:32:42,236 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 387879bf92b16ead997b40b3e249348f8a6b399496756f9bc3c41b6dc3c21353 [2025-01-09 21:32:42,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:32:42,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:32:42,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:32:42,466 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:32:42,467 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:32:42,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2025-01-09 21:32:43,727 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f47014064/5926e03d2bdd4c5db014b979e92a9530/FLAG76f169843 [2025-01-09 21:32:43,993 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:32:43,996 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2025-01-09 21:32:44,001 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f47014064/5926e03d2bdd4c5db014b979e92a9530/FLAG76f169843 [2025-01-09 21:32:44,015 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f47014064/5926e03d2bdd4c5db014b979e92a9530 [2025-01-09 21:32:44,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:32:44,019 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:32:44,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:32:44,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:32:44,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:32:44,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da18833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44, skipping insertion in model container [2025-01-09 21:32:44,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:32:44,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:32:44,183 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:32:44,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:32:44,208 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:32:44,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44 WrapperNode [2025-01-09 21:32:44,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:32:44,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:32:44,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:32:44,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:32:44,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,243 INFO L138 Inliner]: procedures = 23, calls = 23, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 166 [2025-01-09 21:32:44,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:32:44,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:32:44,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:32:44,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:32:44,251 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,261 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,262 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:32:44,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:32:44,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:32:44,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:32:44,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (1/1) ... [2025-01-09 21:32:44,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:32:44,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:32:44,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:32:44,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:32:44,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:32:44,326 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-09 21:32:44,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-09 21:32:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-09 21:32:44,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-09 21:32:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:32:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:32:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 21:32:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:32:44,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:32:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:32:44,329 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:32:44,409 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:32:44,410 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:32:44,685 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:32:44,685 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:32:44,696 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:32:44,698 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 21:32:44,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:32:44 BoogieIcfgContainer [2025-01-09 21:32:44,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:32:44,700 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:32:44,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:32:44,703 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:32:44,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:32:44" (1/3) ... [2025-01-09 21:32:44,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585579c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:32:44, skipping insertion in model container [2025-01-09 21:32:44,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:44" (2/3) ... [2025-01-09 21:32:44,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585579c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:32:44, skipping insertion in model container [2025-01-09 21:32:44,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:32:44" (3/3) ... [2025-01-09 21:32:44,707 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue.wvr.c [2025-01-09 21:32:44,717 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:32:44,719 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-counter-queue.wvr.c that has 3 procedures, 209 locations, 1 initial locations, 3 loop locations, and 10 error locations. [2025-01-09 21:32:44,720 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:32:44,804 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-09 21:32:44,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 220 transitions, 454 flow [2025-01-09 21:32:44,961 INFO L124 PetriNetUnfolderBase]: 12/218 cut-off events. [2025-01-09 21:32:44,964 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-09 21:32:44,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 218 events. 12/218 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 324 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 144. Up to 2 conditions per place. [2025-01-09 21:32:44,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 220 transitions, 454 flow [2025-01-09 21:32:44,983 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 201 transitions, 411 flow [2025-01-09 21:32:44,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:32:45,012 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;@29f2eb7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:32:45,012 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-01-09 21:32:45,019 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:32:45,019 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2025-01-09 21:32:45,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:32:45,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:45,020 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:32:45,020 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-01-09 21:32:45,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:45,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1348695757, now seen corresponding path program 1 times [2025-01-09 21:32:45,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:45,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254939578] [2025-01-09 21:32:45,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:45,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:45,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 21:32:45,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 21:32:45,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:45,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:45,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:45,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:45,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254939578] [2025-01-09 21:32:45,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254939578] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:45,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:45,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:45,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068601666] [2025-01-09 21:32:45,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:45,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:45,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:45,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:45,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:45,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 220 [2025-01-09 21:32:45,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 201 transitions, 411 flow. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 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) [2025-01-09 21:32:45,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:45,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 220 [2025-01-09 21:32:45,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:45,271 INFO L124 PetriNetUnfolderBase]: 8/298 cut-off events. [2025-01-09 21:32:45,271 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-01-09 21:32:45,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 298 events. 8/298 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 770 event pairs, 3 based on Foata normal form. 10/277 useless extension candidates. Maximal degree in co-relation 229. Up to 18 conditions per place. [2025-01-09 21:32:45,274 INFO L140 encePairwiseOnDemand]: 209/220 looper letters, 9 selfloop transitions, 2 changer transitions 2/192 dead transitions. [2025-01-09 21:32:45,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 192 transitions, 415 flow [2025-01-09 21:32:45,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:45,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:45,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 608 transitions. [2025-01-09 21:32:45,294 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9212121212121213 [2025-01-09 21:32:45,296 INFO L175 Difference]: Start difference. First operand has 197 places, 201 transitions, 411 flow. Second operand 3 states and 608 transitions. [2025-01-09 21:32:45,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 192 transitions, 415 flow [2025-01-09 21:32:45,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 192 transitions, 410 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-09 21:32:45,310 INFO L231 Difference]: Finished difference. Result has 195 places, 190 transitions, 388 flow [2025-01-09 21:32:45,313 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=195, PETRI_TRANSITIONS=190} [2025-01-09 21:32:45,318 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -2 predicate places. [2025-01-09 21:32:45,318 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 190 transitions, 388 flow [2025-01-09 21:32:45,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 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) [2025-01-09 21:32:45,320 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:45,320 INFO L206 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] [2025-01-09 21:32:45,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:32:45,321 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-01-09 21:32:45,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:45,322 INFO L85 PathProgramCache]: Analyzing trace with hash 265192990, now seen corresponding path program 1 times [2025-01-09 21:32:45,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:45,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414679520] [2025-01-09 21:32:45,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:45,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:45,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 21:32:45,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 21:32:45,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:45,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:45,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:45,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:45,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414679520] [2025-01-09 21:32:45,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414679520] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:45,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:45,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:45,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320481806] [2025-01-09 21:32:45,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:45,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:45,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:45,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:45,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:45,421 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 220 [2025-01-09 21:32:45,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 190 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2025-01-09 21:32:45,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:45,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 220 [2025-01-09 21:32:45,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:45,493 INFO L124 PetriNetUnfolderBase]: 17/444 cut-off events. [2025-01-09 21:32:45,494 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-09 21:32:45,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 444 events. 17/444 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1726 event pairs, 8 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 461. Up to 31 conditions per place. [2025-01-09 21:32:45,503 INFO L140 encePairwiseOnDemand]: 216/220 looper letters, 9 selfloop transitions, 1 changer transitions 0/187 dead transitions. [2025-01-09 21:32:45,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 187 transitions, 402 flow [2025-01-09 21:32:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:45,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 601 transitions. [2025-01-09 21:32:45,505 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9106060606060606 [2025-01-09 21:32:45,505 INFO L175 Difference]: Start difference. First operand has 195 places, 190 transitions, 388 flow. Second operand 3 states and 601 transitions. [2025-01-09 21:32:45,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 187 transitions, 402 flow [2025-01-09 21:32:45,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 187 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:32:45,508 INFO L231 Difference]: Finished difference. Result has 190 places, 187 transitions, 380 flow [2025-01-09 21:32:45,509 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=380, PETRI_PLACES=190, PETRI_TRANSITIONS=187} [2025-01-09 21:32:45,510 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -7 predicate places. [2025-01-09 21:32:45,510 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 187 transitions, 380 flow [2025-01-09 21:32:45,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2025-01-09 21:32:45,510 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:45,510 INFO L206 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] [2025-01-09 21:32:45,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:32:45,511 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-01-09 21:32:45,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:45,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1759974588, now seen corresponding path program 1 times [2025-01-09 21:32:45,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:45,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298687424] [2025-01-09 21:32:45,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:45,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:45,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-01-09 21:32:45,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-09 21:32:45,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:45,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:45,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:45,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:45,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298687424] [2025-01-09 21:32:45,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298687424] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:45,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:45,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:45,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500847671] [2025-01-09 21:32:45,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:45,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:45,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:45,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:45,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:45,610 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 220 [2025-01-09 21:32:45,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 187 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:32:45,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:45,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 220 [2025-01-09 21:32:45,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:45,650 INFO L124 PetriNetUnfolderBase]: 7/244 cut-off events. [2025-01-09 21:32:45,650 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-09 21:32:45,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 244 events. 7/244 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 497 event pairs, 3 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 242. Up to 15 conditions per place. [2025-01-09 21:32:45,653 INFO L140 encePairwiseOnDemand]: 217/220 looper letters, 8 selfloop transitions, 2 changer transitions 0/186 dead transitions. [2025-01-09 21:32:45,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 186 transitions, 398 flow [2025-01-09 21:32:45,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:45,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2025-01-09 21:32:45,655 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9121212121212121 [2025-01-09 21:32:45,655 INFO L175 Difference]: Start difference. First operand has 190 places, 187 transitions, 380 flow. Second operand 3 states and 602 transitions. [2025-01-09 21:32:45,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 186 transitions, 398 flow [2025-01-09 21:32:45,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 186 transitions, 397 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:32:45,659 INFO L231 Difference]: Finished difference. Result has 190 places, 186 transitions, 381 flow [2025-01-09 21:32:45,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=381, PETRI_PLACES=190, PETRI_TRANSITIONS=186} [2025-01-09 21:32:45,661 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -7 predicate places. [2025-01-09 21:32:45,661 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 186 transitions, 381 flow [2025-01-09 21:32:45,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:32:45,662 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:45,662 INFO L206 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] [2025-01-09 21:32:45,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:32:45,662 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-01-09 21:32:45,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:45,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1509619152, now seen corresponding path program 1 times [2025-01-09 21:32:45,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:45,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367011223] [2025-01-09 21:32:45,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:45,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:45,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-01-09 21:32:45,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-09 21:32:45,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:45,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:46,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:46,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367011223] [2025-01-09 21:32:46,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367011223] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:46,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:46,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:32:46,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678563822] [2025-01-09 21:32:46,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:46,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:32:46,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:46,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:32:46,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:32:46,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 220 [2025-01-09 21:32:46,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 186 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 185.5) internal successors, (1113), 6 states have internal predecessors, (1113), 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) [2025-01-09 21:32:46,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:46,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 220 [2025-01-09 21:32:46,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:46,419 INFO L124 PetriNetUnfolderBase]: 42/566 cut-off events. [2025-01-09 21:32:46,419 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-01-09 21:32:46,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 566 events. 42/566 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2493 event pairs, 24 based on Foata normal form. 0/510 useless extension candidates. Maximal degree in co-relation 643. Up to 82 conditions per place. [2025-01-09 21:32:46,423 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 19 selfloop transitions, 5 changer transitions 0/185 dead transitions. [2025-01-09 21:32:46,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 185 transitions, 427 flow [2025-01-09 21:32:46,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:32:46,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:32:46,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1129 transitions. [2025-01-09 21:32:46,428 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8553030303030303 [2025-01-09 21:32:46,428 INFO L175 Difference]: Start difference. First operand has 190 places, 186 transitions, 381 flow. Second operand 6 states and 1129 transitions. [2025-01-09 21:32:46,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 185 transitions, 427 flow [2025-01-09 21:32:46,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 185 transitions, 423 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:32:46,431 INFO L231 Difference]: Finished difference. Result has 192 places, 185 transitions, 385 flow [2025-01-09 21:32:46,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=385, PETRI_PLACES=192, PETRI_TRANSITIONS=185} [2025-01-09 21:32:46,432 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -5 predicate places. [2025-01-09 21:32:46,432 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 185 transitions, 385 flow [2025-01-09 21:32:46,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.5) internal successors, (1113), 6 states have internal predecessors, (1113), 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) [2025-01-09 21:32:46,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:46,433 INFO L206 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] [2025-01-09 21:32:46,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:32:46,433 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-01-09 21:32:46,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:46,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1690577105, now seen corresponding path program 1 times [2025-01-09 21:32:46,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:46,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723945634] [2025-01-09 21:32:46,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:46,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:46,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-09 21:32:46,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-09 21:32:46,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:46,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:46,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:46,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723945634] [2025-01-09 21:32:46,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723945634] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:46,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:46,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:46,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737415825] [2025-01-09 21:32:46,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:46,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:46,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:46,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:46,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:46,487 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 220 [2025-01-09 21:32:46,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 185 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 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) [2025-01-09 21:32:46,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:46,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 220 [2025-01-09 21:32:46,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:46,529 INFO L124 PetriNetUnfolderBase]: 20/455 cut-off events. [2025-01-09 21:32:46,530 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-01-09 21:32:46,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 455 events. 20/455 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1729 event pairs, 2 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 489. Up to 32 conditions per place. [2025-01-09 21:32:46,532 INFO L140 encePairwiseOnDemand]: 216/220 looper letters, 10 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2025-01-09 21:32:46,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 187 transitions, 416 flow [2025-01-09 21:32:46,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:46,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:46,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 611 transitions. [2025-01-09 21:32:46,534 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9257575757575758 [2025-01-09 21:32:46,534 INFO L175 Difference]: Start difference. First operand has 192 places, 185 transitions, 385 flow. Second operand 3 states and 611 transitions. [2025-01-09 21:32:46,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 187 transitions, 416 flow [2025-01-09 21:32:46,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 187 transitions, 406 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-01-09 21:32:46,537 INFO L231 Difference]: Finished difference. Result has 188 places, 185 transitions, 385 flow [2025-01-09 21:32:46,537 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=188, PETRI_TRANSITIONS=185} [2025-01-09 21:32:46,538 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -9 predicate places. [2025-01-09 21:32:46,538 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 185 transitions, 385 flow [2025-01-09 21:32:46,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 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) [2025-01-09 21:32:46,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:46,539 INFO L206 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] [2025-01-09 21:32:46,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:32:46,539 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-01-09 21:32:46,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:46,539 INFO L85 PathProgramCache]: Analyzing trace with hash -969601805, now seen corresponding path program 1 times [2025-01-09 21:32:46,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:46,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585402084] [2025-01-09 21:32:46,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:46,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:46,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-09 21:32:46,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-09 21:32:46,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:46,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:46,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:46,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585402084] [2025-01-09 21:32:46,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585402084] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:46,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:46,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 21:32:46,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86371967] [2025-01-09 21:32:46,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:46,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 21:32:46,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:46,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 21:32:46,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 21:32:46,799 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 220 [2025-01-09 21:32:46,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 185 transitions, 385 flow. Second operand has 7 states, 7 states have (on average 192.85714285714286) internal successors, (1350), 7 states have internal predecessors, (1350), 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) [2025-01-09 21:32:46,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:46,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 220 [2025-01-09 21:32:46,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:46,910 INFO L124 PetriNetUnfolderBase]: 17/486 cut-off events. [2025-01-09 21:32:46,910 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-09 21:32:46,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 486 events. 17/486 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1752 event pairs, 6 based on Foata normal form. 2/461 useless extension candidates. Maximal degree in co-relation 554. Up to 29 conditions per place. [2025-01-09 21:32:46,912 INFO L140 encePairwiseOnDemand]: 207/220 looper letters, 15 selfloop transitions, 14 changer transitions 0/196 dead transitions. [2025-01-09 21:32:46,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 196 transitions, 471 flow [2025-01-09 21:32:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 21:32:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-09 21:32:46,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1940 transitions. [2025-01-09 21:32:46,916 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8818181818181818 [2025-01-09 21:32:46,916 INFO L175 Difference]: Start difference. First operand has 188 places, 185 transitions, 385 flow. Second operand 10 states and 1940 transitions. [2025-01-09 21:32:46,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 196 transitions, 471 flow [2025-01-09 21:32:46,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 196 transitions, 471 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:32:46,919 INFO L231 Difference]: Finished difference. Result has 201 places, 192 transitions, 451 flow [2025-01-09 21:32:46,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=451, PETRI_PLACES=201, PETRI_TRANSITIONS=192} [2025-01-09 21:32:46,921 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, 4 predicate places. [2025-01-09 21:32:46,921 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 192 transitions, 451 flow [2025-01-09 21:32:46,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 192.85714285714286) internal successors, (1350), 7 states have internal predecessors, (1350), 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) [2025-01-09 21:32:46,922 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:46,922 INFO L206 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] [2025-01-09 21:32:46,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:32:46,923 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-01-09 21:32:46,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:46,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1008879390, now seen corresponding path program 1 times [2025-01-09 21:32:46,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:46,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735615224] [2025-01-09 21:32:46,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:46,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:46,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-09 21:32:46,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-09 21:32:46,940 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:46,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:47,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:47,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:47,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735615224] [2025-01-09 21:32:47,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735615224] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:47,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:47,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 21:32:47,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892239535] [2025-01-09 21:32:47,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:47,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 21:32:47,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:47,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 21:32:47,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 21:32:47,196 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 220 [2025-01-09 21:32:47,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 192 transitions, 451 flow. Second operand has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:32:47,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:47,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 220 [2025-01-09 21:32:47,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:47,297 INFO L124 PetriNetUnfolderBase]: 22/385 cut-off events. [2025-01-09 21:32:47,297 INFO L125 PetriNetUnfolderBase]: For 32/33 co-relation queries the response was YES. [2025-01-09 21:32:47,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 385 events. 22/385 cut-off events. For 32/33 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1173 event pairs, 8 based on Foata normal form. 2/371 useless extension candidates. Maximal degree in co-relation 462. Up to 35 conditions per place. [2025-01-09 21:32:47,301 INFO L140 encePairwiseOnDemand]: 207/220 looper letters, 11 selfloop transitions, 8 changer transitions 12/198 dead transitions. [2025-01-09 21:32:47,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 198 transitions, 526 flow [2025-01-09 21:32:47,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 21:32:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-09 21:32:47,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1940 transitions. [2025-01-09 21:32:47,304 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8818181818181818 [2025-01-09 21:32:47,304 INFO L175 Difference]: Start difference. First operand has 201 places, 192 transitions, 451 flow. Second operand 10 states and 1940 transitions. [2025-01-09 21:32:47,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 198 transitions, 526 flow [2025-01-09 21:32:47,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 198 transitions, 522 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:32:47,308 INFO L231 Difference]: Finished difference. Result has 211 places, 186 transitions, 439 flow [2025-01-09 21:32:47,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=439, PETRI_PLACES=211, PETRI_TRANSITIONS=186} [2025-01-09 21:32:47,310 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, 14 predicate places. [2025-01-09 21:32:47,310 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 186 transitions, 439 flow [2025-01-09 21:32:47,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:32:47,311 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:47,312 INFO L206 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] [2025-01-09 21:32:47,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 21:32:47,312 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-01-09 21:32:47,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:47,312 INFO L85 PathProgramCache]: Analyzing trace with hash -453458992, now seen corresponding path program 1 times [2025-01-09 21:32:47,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:47,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105580275] [2025-01-09 21:32:47,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:47,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:47,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-09 21:32:47,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-09 21:32:47,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:47,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 21:32:47,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:47,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105580275] [2025-01-09 21:32:47,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105580275] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:47,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:47,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:32:47,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527072517] [2025-01-09 21:32:47,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:47,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:32:47,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:47,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:32:47,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:32:47,722 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 220 [2025-01-09 21:32:47,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 186 transitions, 439 flow. Second operand has 6 states, 6 states have (on average 193.16666666666666) internal successors, (1159), 6 states have internal predecessors, (1159), 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) [2025-01-09 21:32:47,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:47,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 220 [2025-01-09 21:32:47,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:47,795 INFO L124 PetriNetUnfolderBase]: 16/329 cut-off events. [2025-01-09 21:32:47,795 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-01-09 21:32:47,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 329 events. 16/329 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 846 event pairs, 4 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 413. Up to 27 conditions per place. [2025-01-09 21:32:47,796 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 16 selfloop transitions, 5 changer transitions 0/189 dead transitions. [2025-01-09 21:32:47,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 189 transitions, 495 flow [2025-01-09 21:32:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:32:47,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:32:47,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1168 transitions. [2025-01-09 21:32:47,799 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8848484848484849 [2025-01-09 21:32:47,799 INFO L175 Difference]: Start difference. First operand has 211 places, 186 transitions, 439 flow. Second operand 6 states and 1168 transitions. [2025-01-09 21:32:47,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 189 transitions, 495 flow [2025-01-09 21:32:47,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 189 transitions, 451 flow, removed 7 selfloop flow, removed 13 redundant places. [2025-01-09 21:32:47,802 INFO L231 Difference]: Finished difference. Result has 194 places, 185 transitions, 403 flow [2025-01-09 21:32:47,802 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=194, PETRI_TRANSITIONS=185} [2025-01-09 21:32:47,802 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2025-01-09 21:32:47,802 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 185 transitions, 403 flow [2025-01-09 21:32:47,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.16666666666666) internal successors, (1159), 6 states have internal predecessors, (1159), 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) [2025-01-09 21:32:47,803 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:47,803 INFO L206 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] [2025-01-09 21:32:47,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 21:32:47,803 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-01-09 21:32:47,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:47,804 INFO L85 PathProgramCache]: Analyzing trace with hash -582871553, now seen corresponding path program 1 times [2025-01-09 21:32:47,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:47,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681207516] [2025-01-09 21:32:47,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:47,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:47,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 21:32:47,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 21:32:47,818 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:47,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:48,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 21:32:48,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:48,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681207516] [2025-01-09 21:32:48,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681207516] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:48,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:48,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:32:48,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074651228] [2025-01-09 21:32:48,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:48,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:32:48,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:48,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:32:48,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:32:48,215 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 220 [2025-01-09 21:32:48,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 185 transitions, 403 flow. Second operand has 6 states, 6 states have (on average 193.33333333333334) internal successors, (1160), 6 states have internal predecessors, (1160), 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) [2025-01-09 21:32:48,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:48,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 220 [2025-01-09 21:32:48,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:48,270 INFO L124 PetriNetUnfolderBase]: 26/337 cut-off events. [2025-01-09 21:32:48,270 INFO L125 PetriNetUnfolderBase]: For 20/21 co-relation queries the response was YES. [2025-01-09 21:32:48,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 337 events. 26/337 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 915 event pairs, 5 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 397. Up to 34 conditions per place. [2025-01-09 21:32:48,271 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 0 selfloop transitions, 0 changer transitions 188/188 dead transitions. [2025-01-09 21:32:48,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 188 transitions, 455 flow [2025-01-09 21:32:48,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:32:48,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:32:48,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1168 transitions. [2025-01-09 21:32:48,273 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8848484848484849 [2025-01-09 21:32:48,274 INFO L175 Difference]: Start difference. First operand has 194 places, 185 transitions, 403 flow. Second operand 6 states and 1168 transitions. [2025-01-09 21:32:48,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 188 transitions, 455 flow [2025-01-09 21:32:48,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 188 transitions, 445 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-01-09 21:32:48,276 INFO L231 Difference]: Finished difference. Result has 193 places, 0 transitions, 0 flow [2025-01-09 21:32:48,276 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=193, PETRI_TRANSITIONS=0} [2025-01-09 21:32:48,278 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -4 predicate places. [2025-01-09 21:32:48,278 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 0 transitions, 0 flow [2025-01-09 21:32:48,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.33333333333334) internal successors, (1160), 6 states have internal predecessors, (1160), 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) [2025-01-09 21:32:48,283 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 18 remaining) [2025-01-09 21:32:48,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2025-01-09 21:32:48,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2025-01-09 21:32:48,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2025-01-09 21:32:48,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2025-01-09 21:32:48,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2025-01-09 21:32:48,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2025-01-09 21:32:48,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 21:32:48,287 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:32:48,291 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 21:32:48,291 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 21:32:48,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 09:32:48 BasicIcfg [2025-01-09 21:32:48,296 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 21:32:48,296 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 21:32:48,296 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 21:32:48,297 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 21:32:48,297 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:32:44" (3/4) ... [2025-01-09 21:32:48,298 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 21:32:48,301 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-01-09 21:32:48,301 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-01-09 21:32:48,303 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-01-09 21:32:48,304 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 21:32:48,304 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 21:32:48,304 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 21:32:48,365 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 21:32:48,365 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 21:32:48,365 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 21:32:48,366 INFO L158 Benchmark]: Toolchain (without parser) took 4346.71ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 134.8MB in the beginning and 99.0MB in the end (delta: 35.7MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2025-01-09 21:32:48,366 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:32:48,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.80ms. Allocated memory is still 167.8MB. Free memory was 134.5MB in the beginning and 122.4MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:32:48,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.97ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 120.5MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:32:48,367 INFO L158 Benchmark]: Boogie Preprocessor took 24.37ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 118.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:32:48,367 INFO L158 Benchmark]: RCFGBuilder took 429.89ms. Allocated memory is still 167.8MB. Free memory was 118.9MB in the beginning and 99.6MB in the end (delta: 19.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:32:48,368 INFO L158 Benchmark]: TraceAbstraction took 3595.34ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 98.9MB in the beginning and 105.3MB in the end (delta: -6.4MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2025-01-09 21:32:48,368 INFO L158 Benchmark]: Witness Printer took 69.06ms. Allocated memory is still 201.3MB. Free memory was 105.3MB in the beginning and 99.0MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:32:48,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.80ms. Allocated memory is still 167.8MB. Free memory was 134.5MB in the beginning and 122.4MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.97ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 120.5MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.37ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 118.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 429.89ms. Allocated memory is still 167.8MB. Free memory was 118.9MB in the beginning and 99.6MB in the end (delta: 19.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3595.34ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 98.9MB in the beginning and 105.3MB in the end (delta: -6.4MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Witness Printer took 69.06ms. Allocated memory is still 201.3MB. Free memory was 105.3MB in the beginning and 99.0MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 315 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 659 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 430 mSDsluCounter, 420 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 387 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1048 IncrementalHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 33 mSDtfsCounter, 1048 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=451occurred in iteration=6, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 544 NumberOfCodeBlocks, 544 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 535 ConstructedInterpolants, 0 QuantifiedInterpolants, 1092 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 21:32:48,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE