./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a60fcb98ac851c591a18dc1631d878e19b22590449601ba560425115015949af --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:08:31,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:08:31,214 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:08:31,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:08:31,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:08:31,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:08:31,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:08:31,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:08:31,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:08:31,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:08:31,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:08:31,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:08:31,243 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:08:31,243 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:08:31,244 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:08:31,244 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:08:31,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:08:31,244 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:08:31,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:08:31,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:08:31,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:08:31,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:08:31,244 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:08:31,244 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:08:31,245 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:08:31,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:08:31,245 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:08:31,245 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:08:31,245 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:08:31,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:31,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:31,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:31,246 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:08:31,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:31,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:31,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:31,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:08:31,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:08:31,246 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:08:31,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:08:31,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:08:31,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:08:31,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:08:31,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:08:31,247 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:08:31,247 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/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 -> a60fcb98ac851c591a18dc1631d878e19b22590449601ba560425115015949af [2025-04-29 11:08:31,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:08:31,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:08:31,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:08:31,480 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:08:31,480 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:08:31,482 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.c [2025-04-29 11:08:32,761 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0365f62b8/a6f41a8e3bc84cc2a8b20d51649e9074/FLAG7a6323140 [2025-04-29 11:08:32,966 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:08:32,967 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.c [2025-04-29 11:08:32,969 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:32,969 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:32,974 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0365f62b8/a6f41a8e3bc84cc2a8b20d51649e9074/FLAG7a6323140 [2025-04-29 11:08:33,962 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0365f62b8/a6f41a8e3bc84cc2a8b20d51649e9074 [2025-04-29 11:08:33,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:08:33,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:08:33,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:33,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:08:33,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:08:33,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:33" (1/1) ... [2025-04-29 11:08:33,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e80803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:33, skipping insertion in model container [2025-04-29 11:08:33,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:33" (1/1) ... [2025-04-29 11:08:33,983 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:08:34,140 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:34,151 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:08:34,177 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:34,195 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:08:34,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34 WrapperNode [2025-04-29 11:08:34,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:34,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:34,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:08:34,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:08:34,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,228 INFO L138 Inliner]: procedures = 12, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2025-04-29 11:08:34,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:34,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:08:34,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:08:34,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:08:34,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,249 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:08:34,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:08:34,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:08:34,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:08:34,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:34,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:34,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-29 11:08:34,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-29 11:08:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-29 11:08:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:08:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:08:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:08:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:08:34,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:08:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:08:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:08:34,312 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:08:34,313 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:08:34,372 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:08:34,373 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:08:34,497 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:08:34,497 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:08:34,510 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:08:34,511 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:08:34,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:34 BoogieIcfgContainer [2025-04-29 11:08:34,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:08:34,512 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:08:34,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:08:34,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:08:34,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:08:33" (1/3) ... [2025-04-29 11:08:34,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fab5f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:34, skipping insertion in model container [2025-04-29 11:08:34,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34" (2/3) ... [2025-04-29 11:08:34,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fab5f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:34, skipping insertion in model container [2025-04-29 11:08:34,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:34" (3/3) ... [2025-04-29 11:08:34,517 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_10-equ_rc.c [2025-04-29 11:08:34,526 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:08:34,528 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_10-equ_rc.c that has 2 procedures, 78 locations, 77 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-04-29 11:08:34,528 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:08:34,572 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:08:34,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 160 flow [2025-04-29 11:08:34,626 INFO L116 PetriNetUnfolderBase]: 1/77 cut-off events. [2025-04-29 11:08:34,627 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:34,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 1/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2025-04-29 11:08:34,629 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 78 transitions, 160 flow [2025-04-29 11:08:34,631 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 77 transitions, 157 flow [2025-04-29 11:08:34,636 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:08:34,644 INFO L340 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;@5691ba2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:08:34,644 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-29 11:08:34,657 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:08:34,658 INFO L116 PetriNetUnfolderBase]: 1/60 cut-off events. [2025-04-29 11:08:34,658 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:34,658 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:34,658 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] [2025-04-29 11:08:34,659 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:34,662 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:34,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1051707709, now seen corresponding path program 1 times [2025-04-29 11:08:34,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:34,668 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815219390] [2025-04-29 11:08:34,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:34,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:34,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-04-29 11:08:34,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-04-29 11:08:34,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:34,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:35,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:35,334 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815219390] [2025-04-29 11:08:35,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815219390] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:35,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:35,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:35,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171146930] [2025-04-29 11:08:35,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:35,342 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:35,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:35,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:35,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:35,482 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 78 [2025-04-29 11:08:35,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 77 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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) [2025-04-29 11:08:35,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:35,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 78 [2025-04-29 11:08:35,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:35,653 INFO L116 PetriNetUnfolderBase]: 79/324 cut-off events. [2025-04-29 11:08:35,654 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:35,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 324 events. 79/324 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1414 event pairs, 25 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 459. Up to 130 conditions per place. [2025-04-29 11:08:35,658 INFO L140 encePairwiseOnDemand]: 67/78 looper letters, 21 selfloop transitions, 22 changer transitions 4/106 dead transitions. [2025-04-29 11:08:35,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 106 transitions, 309 flow [2025-04-29 11:08:35,660 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:35,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:35,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 408 transitions. [2025-04-29 11:08:35,670 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8717948717948718 [2025-04-29 11:08:35,672 INFO L175 Difference]: Start difference. First operand has 80 places, 77 transitions, 157 flow. Second operand 6 states and 408 transitions. [2025-04-29 11:08:35,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 106 transitions, 309 flow [2025-04-29 11:08:35,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 106 transitions, 308 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:35,682 INFO L231 Difference]: Finished difference. Result has 89 places, 98 transitions, 306 flow [2025-04-29 11:08:35,684 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=89, PETRI_TRANSITIONS=98} [2025-04-29 11:08:35,687 INFO L279 CegarLoopForPetriNet]: 80 programPoint places, 9 predicate places. [2025-04-29 11:08:35,688 INFO L485 AbstractCegarLoop]: Abstraction has has 89 places, 98 transitions, 306 flow [2025-04-29 11:08:35,689 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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) [2025-04-29 11:08:35,689 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:35,689 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] [2025-04-29 11:08:35,690 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:08:35,690 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:35,690 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:35,691 INFO L85 PathProgramCache]: Analyzing trace with hash 63498938, now seen corresponding path program 1 times [2025-04-29 11:08:35,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:35,691 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092601236] [2025-04-29 11:08:35,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:35,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:35,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-04-29 11:08:35,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-04-29 11:08:35,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:35,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:35,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:35,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:35,973 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092601236] [2025-04-29 11:08:35,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092601236] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:35,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:35,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:35,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579426226] [2025-04-29 11:08:35,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:35,974 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:35,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:35,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:35,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:36,018 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 78 [2025-04-29 11:08:36,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 98 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 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) [2025-04-29 11:08:36,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:36,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 78 [2025-04-29 11:08:36,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:36,152 INFO L116 PetriNetUnfolderBase]: 132/457 cut-off events. [2025-04-29 11:08:36,152 INFO L117 PetriNetUnfolderBase]: For 136/144 co-relation queries the response was YES. [2025-04-29 11:08:36,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1050 conditions, 457 events. 132/457 cut-off events. For 136/144 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2211 event pairs, 31 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 995. Up to 218 conditions per place. [2025-04-29 11:08:36,155 INFO L140 encePairwiseOnDemand]: 67/78 looper letters, 39 selfloop transitions, 29 changer transitions 7/133 dead transitions. [2025-04-29 11:08:36,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 133 transitions, 596 flow [2025-04-29 11:08:36,155 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:36,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:36,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 393 transitions. [2025-04-29 11:08:36,157 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8397435897435898 [2025-04-29 11:08:36,157 INFO L175 Difference]: Start difference. First operand has 89 places, 98 transitions, 306 flow. Second operand 6 states and 393 transitions. [2025-04-29 11:08:36,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 133 transitions, 596 flow [2025-04-29 11:08:36,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 133 transitions, 596 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:36,162 INFO L231 Difference]: Finished difference. Result has 99 places, 122 transitions, 560 flow [2025-04-29 11:08:36,163 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=560, PETRI_PLACES=99, PETRI_TRANSITIONS=122} [2025-04-29 11:08:36,164 INFO L279 CegarLoopForPetriNet]: 80 programPoint places, 19 predicate places. [2025-04-29 11:08:36,164 INFO L485 AbstractCegarLoop]: Abstraction has has 99 places, 122 transitions, 560 flow [2025-04-29 11:08:36,164 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 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) [2025-04-29 11:08:36,165 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:36,165 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] [2025-04-29 11:08:36,165 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:08:36,165 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:36,166 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:36,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2026191133, now seen corresponding path program 1 times [2025-04-29 11:08:36,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:36,166 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121749055] [2025-04-29 11:08:36,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:36,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:36,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-04-29 11:08:36,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-04-29 11:08:36,191 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:36,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:36,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:36,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:36,502 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121749055] [2025-04-29 11:08:36,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121749055] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:36,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:36,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-29 11:08:36,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559024724] [2025-04-29 11:08:36,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:36,504 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-29 11:08:36,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:36,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-29 11:08:36,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-04-29 11:08:36,781 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 78 [2025-04-29 11:08:36,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 122 transitions, 560 flow. Second operand has 11 states, 11 states have (on average 53.54545454545455) internal successors, (589), 11 states have internal predecessors, (589), 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) [2025-04-29 11:08:36,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:36,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 78 [2025-04-29 11:08:36,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:37,161 INFO L116 PetriNetUnfolderBase]: 275/878 cut-off events. [2025-04-29 11:08:37,161 INFO L117 PetriNetUnfolderBase]: For 691/691 co-relation queries the response was YES. [2025-04-29 11:08:37,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2607 conditions, 878 events. 275/878 cut-off events. For 691/691 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5512 event pairs, 60 based on Foata normal form. 11/879 useless extension candidates. Maximal degree in co-relation 1528. Up to 285 conditions per place. [2025-04-29 11:08:37,168 INFO L140 encePairwiseOnDemand]: 62/78 looper letters, 118 selfloop transitions, 38 changer transitions 19/228 dead transitions. [2025-04-29 11:08:37,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 228 transitions, 1572 flow [2025-04-29 11:08:37,168 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-29 11:08:37,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-04-29 11:08:37,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 655 transitions. [2025-04-29 11:08:37,170 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7634032634032634 [2025-04-29 11:08:37,170 INFO L175 Difference]: Start difference. First operand has 99 places, 122 transitions, 560 flow. Second operand 11 states and 655 transitions. [2025-04-29 11:08:37,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 228 transitions, 1572 flow [2025-04-29 11:08:37,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 228 transitions, 1536 flow, removed 18 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:37,181 INFO L231 Difference]: Finished difference. Result has 117 places, 156 transitions, 987 flow [2025-04-29 11:08:37,181 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=987, PETRI_PLACES=117, PETRI_TRANSITIONS=156} [2025-04-29 11:08:37,181 INFO L279 CegarLoopForPetriNet]: 80 programPoint places, 37 predicate places. [2025-04-29 11:08:37,182 INFO L485 AbstractCegarLoop]: Abstraction has has 117 places, 156 transitions, 987 flow [2025-04-29 11:08:37,182 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.54545454545455) internal successors, (589), 11 states have internal predecessors, (589), 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) [2025-04-29 11:08:37,182 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:37,182 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] [2025-04-29 11:08:37,182 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:08:37,183 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:37,183 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:37,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1944086951, now seen corresponding path program 1 times [2025-04-29 11:08:37,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:37,183 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112695480] [2025-04-29 11:08:37,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:37,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:37,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-04-29 11:08:37,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-04-29 11:08:37,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:37,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:37,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:37,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:37,516 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112695480] [2025-04-29 11:08:37,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112695480] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:37,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:37,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-29 11:08:37,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878819352] [2025-04-29 11:08:37,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:37,517 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-29 11:08:37,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:37,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-29 11:08:37,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-04-29 11:08:37,824 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 78 [2025-04-29 11:08:37,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 156 transitions, 987 flow. Second operand has 11 states, 11 states have (on average 53.54545454545455) internal successors, (589), 11 states have internal predecessors, (589), 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) [2025-04-29 11:08:37,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:37,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 78 [2025-04-29 11:08:37,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:38,118 INFO L116 PetriNetUnfolderBase]: 243/826 cut-off events. [2025-04-29 11:08:38,118 INFO L117 PetriNetUnfolderBase]: For 1280/1312 co-relation queries the response was YES. [2025-04-29 11:08:38,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2869 conditions, 826 events. 243/826 cut-off events. For 1280/1312 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5122 event pairs, 55 based on Foata normal form. 16/836 useless extension candidates. Maximal degree in co-relation 2209. Up to 266 conditions per place. [2025-04-29 11:08:38,126 INFO L140 encePairwiseOnDemand]: 62/78 looper letters, 103 selfloop transitions, 38 changer transitions 32/226 dead transitions. [2025-04-29 11:08:38,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 226 transitions, 1851 flow [2025-04-29 11:08:38,126 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-29 11:08:38,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-04-29 11:08:38,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 648 transitions. [2025-04-29 11:08:38,129 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7552447552447552 [2025-04-29 11:08:38,129 INFO L175 Difference]: Start difference. First operand has 117 places, 156 transitions, 987 flow. Second operand 11 states and 648 transitions. [2025-04-29 11:08:38,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 226 transitions, 1851 flow [2025-04-29 11:08:38,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 226 transitions, 1844 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-04-29 11:08:38,141 INFO L231 Difference]: Finished difference. Result has 132 places, 172 transitions, 1275 flow [2025-04-29 11:08:38,142 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1275, PETRI_PLACES=132, PETRI_TRANSITIONS=172} [2025-04-29 11:08:38,142 INFO L279 CegarLoopForPetriNet]: 80 programPoint places, 52 predicate places. [2025-04-29 11:08:38,142 INFO L485 AbstractCegarLoop]: Abstraction has has 132 places, 172 transitions, 1275 flow [2025-04-29 11:08:38,143 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.54545454545455) internal successors, (589), 11 states have internal predecessors, (589), 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) [2025-04-29 11:08:38,143 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:38,143 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] [2025-04-29 11:08:38,143 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:08:38,143 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:38,144 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:38,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2036340864, now seen corresponding path program 1 times [2025-04-29 11:08:38,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:38,144 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925628052] [2025-04-29 11:08:38,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:38,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:38,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-04-29 11:08:38,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-04-29 11:08:38,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:38,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:08:38,167 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 11:08:38,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-04-29 11:08:38,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-04-29 11:08:38,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:38,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:08:38,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-29 11:08:38,191 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 11:08:38,191 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2025-04-29 11:08:38,192 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2025-04-29 11:08:38,193 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-29 11:08:38,193 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2025-04-29 11:08:38,193 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:08:38,193 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-04-29 11:08:38,236 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:08:38,236 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:08:38,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:08:38 BasicIcfg [2025-04-29 11:08:38,242 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:08:38,243 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:08:38,243 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:08:38,243 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:08:38,244 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:34" (3/4) ... [2025-04-29 11:08:38,244 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-29 11:08:38,285 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 2. [2025-04-29 11:08:38,321 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:08:38,322 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:08:38,322 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:08:38,323 INFO L158 Benchmark]: Toolchain (without parser) took 4357.47ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 110.6MB in the beginning and 150.1MB in the end (delta: -39.5MB). Peak memory consumption was 138.6MB. Max. memory is 16.1GB. [2025-04-29 11:08:38,323 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 130.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:38,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.81ms. Allocated memory is still 142.6MB. Free memory was 109.7MB in the beginning and 96.3MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:08:38,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.73ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 94.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:38,323 INFO L158 Benchmark]: Boogie Preprocessor took 32.28ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 93.5MB in the end (delta: 934.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:38,323 INFO L158 Benchmark]: RCFGBuilder took 249.57ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 78.6MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:08:38,324 INFO L158 Benchmark]: TraceAbstraction took 3730.11ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 78.6MB in the beginning and 158.5MB in the end (delta: -79.9MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. [2025-04-29 11:08:38,324 INFO L158 Benchmark]: Witness Printer took 79.29ms. Allocated memory is still 318.8MB. Free memory was 158.5MB in the beginning and 150.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:08:38,325 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 130.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.81ms. Allocated memory is still 142.6MB. Free memory was 109.7MB in the beginning and 96.3MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.73ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 94.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.28ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 93.5MB in the end (delta: 934.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.57ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 78.6MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3730.11ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 78.6MB in the beginning and 158.5MB in the end (delta: -79.9MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. * Witness Printer took 79.29ms. Allocated memory is still 318.8MB. Free memory was 158.5MB in the beginning and 150.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 22]: Data race detected Data race detected The following path leads to a data race: [L14-L18] 0 struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; VAL [A={1:0}, B={2:0}] [L31] 0 int x = __VERIFIER_nondet_int(); VAL [A={1:0}, B={2:0}, x=0] [L32] 0 pthread_t id; VAL [A={1:0}, B={2:0}, x=0] [L35] 0 struct s *s; VAL [A={1:0}, B={2:0}, x=0] [L37] 0 int *d; VAL [A={1:0}, B={2:0}, x=0] [L39] 0 pthread_mutex_t *m; VAL [A={1:0}, B={2:0}, x=0] [L41] COND FALSE 0 !(\read(x)) VAL [A={1:0}, B={2:0}, x=0] [L45] 0 s = &B VAL [A={1:0}, B={2:0}, s={2:0}, x=0] [L46] 0 x++ VAL [A={1:0}, B={2:0}, s={2:0}, x=1] [L50] 0 m = &s->mutex VAL [A={1:0}, B={2:0}, m={2:12}, s={2:0}, x=1] [L51] 0 d = &s->datum VAL [A={1:0}, B={2:0}, d={2:0}, m={2:12}, s={2:0}, x=1] [L53] FCALL, FORK 0 pthread_create(&id,NULL,t_fun,NULL) VAL [A={1:0}, B={2:0}, \at(arg, Pre)={0:0}, d={2:0}, id=-1, m={2:12}, s={2:0}, x=1] [L56] 0 *d = 8 VAL [A={1:0}, B={2:0}, \at(arg, Pre)={0:0}, d={2:0}, id=-1, m={2:12}, s={2:0}, x=1] [L22] 1 B.datum = 5 VAL [A={1:0}, B={2:0}, \at(arg, Pre)={0:0}, arg={0:0}] [L56] 0 *d = 8 VAL [A={1:0}, B={2:0}, \at(arg, Pre)={0:0}, arg={0:0}, d={2:0}, id=-1, m={2:12}, s={2:0}, x=1] [L22] 1 B.datum = 5 VAL [A={1:0}, B={2:0}, \at(arg, Pre)={0:0}, arg={0:0}] Now there is a data race (on the heap) between C: *d = 8 [56] and C: B.datum = 5 [22] - UnprovableResult [Line: 56]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 95 edges, 4 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: 3.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 702 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 593 mSDsluCounter, 376 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 355 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1862 IncrementalHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 21 mSDtfsCounter, 1862 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1275occurred in iteration=4, InterpolantAutomatonStates: 34, 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, 1.4s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 199 ConstructedInterpolants, 0 QuantifiedInterpolants, 923 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2025-04-29 11:08:38,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)