./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-race-challenges/atomic-gcc.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/pthread-race-challenges/atomic-gcc.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 ac811cd758fcce6c1bde66c7a950a6c6edd23a32cc6b07ba2aa5a950b4bf2349 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:10:37,402 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:10:37,450 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:10:37,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:10:37,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:10:37,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:10:37,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:10:37,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:10:37,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:10:37,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:10:37,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:10:37,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:10:37,467 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:10:37,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:10:37,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:10:37,467 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:10:37,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:10:37,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:10:37,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:10:37,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:10:37,471 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:37,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:37,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:10:37,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:10:37,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:10:37,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:10:37,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:10:37,472 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 -> ac811cd758fcce6c1bde66c7a950a6c6edd23a32cc6b07ba2aa5a950b4bf2349 [2025-04-29 11:10:37,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:10:37,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:10:37,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:10:37,696 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:10:37,696 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:10:37,698 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-race-challenges/atomic-gcc.c [2025-04-29 11:10:38,968 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aacfee086/b35a759c0c224db5bff623bd3c951883/FLAG8aa3d223e [2025-04-29 11:10:39,175 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:10:39,175 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-race-challenges/atomic-gcc.c [2025-04-29 11:10:39,177 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:10:39,177 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:10:39,182 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aacfee086/b35a759c0c224db5bff623bd3c951883/FLAG8aa3d223e [2025-04-29 11:10:41,069 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aacfee086/b35a759c0c224db5bff623bd3c951883 [2025-04-29 11:10:41,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:10:41,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:10:41,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:10:41,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:10:41,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:10:41,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc97bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41, skipping insertion in model container [2025-04-29 11:10:41,076 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:10:41,208 WARN L638 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-04-29 11:10:41,231 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:10:41,240 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:10:41,255 WARN L638 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-04-29 11:10:41,262 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:10:41,274 WARN L1206 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-04-29 11:10:41,279 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:10:41,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41 WrapperNode [2025-04-29 11:10:41,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:10:41,280 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:10:41,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:10:41,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:10:41,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,309 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2025-04-29 11:10:41,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:10:41,310 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:10:41,310 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:10:41,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:10:41,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,321 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,321 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,326 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:10:41,332 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:10:41,332 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:10:41,332 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:10:41,333 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (1/1) ... [2025-04-29 11:10:41,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:41,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:10:41,356 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 11:10:41,358 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 11:10:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:10:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:10:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-04-29 11:10:41,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-04-29 11:10:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-29 11:10:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-29 11:10:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:10:41,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:10:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-29 11:10:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-29 11:10:41,374 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 11:10:41,424 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:10:41,425 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:10:41,585 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:10:41,585 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:10:41,591 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:10:41,592 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-29 11:10:41,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:41 BoogieIcfgContainer [2025-04-29 11:10:41,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:10:41,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:10:41,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:10:41,597 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:10:41,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:10:41" (1/3) ... [2025-04-29 11:10:41,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a644421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:10:41, skipping insertion in model container [2025-04-29 11:10:41,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:41" (2/3) ... [2025-04-29 11:10:41,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a644421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:10:41, skipping insertion in model container [2025-04-29 11:10:41,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:41" (3/3) ... [2025-04-29 11:10:41,598 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.c [2025-04-29 11:10:41,608 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:10:41,610 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.c that has 2 procedures, 74 locations, 76 edges, 1 initial locations, 3 loop locations, and 3 error locations. [2025-04-29 11:10:41,610 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:10:41,652 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-29 11:10:41,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 161 flow [2025-04-29 11:10:41,731 INFO L116 PetriNetUnfolderBase]: 3/106 cut-off events. [2025-04-29 11:10:41,732 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:10:41,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 106 events. 3/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 143 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2025-04-29 11:10:41,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 77 transitions, 161 flow [2025-04-29 11:10:41,738 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 161 flow [2025-04-29 11:10:41,744 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:10:41,750 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;@69c9839e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:10:41,751 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-29 11:10:41,766 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:10:41,767 INFO L116 PetriNetUnfolderBase]: 1/48 cut-off events. [2025-04-29 11:10:41,767 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:10:41,768 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:41,768 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] [2025-04-29 11:10:41,769 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-29 11:10:41,772 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:41,773 INFO L85 PathProgramCache]: Analyzing trace with hash -606883209, now seen corresponding path program 1 times [2025-04-29 11:10:41,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:41,778 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423547917] [2025-04-29 11:10:41,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:41,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:41,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-04-29 11:10:41,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-29 11:10:41,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:41,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:42,093 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 11:10:42,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:42,094 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423547917] [2025-04-29 11:10:42,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423547917] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:42,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:42,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:10:42,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120282935] [2025-04-29 11:10:42,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:42,102 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 11:10:42,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:42,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 11:10:42,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-29 11:10:42,237 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 77 [2025-04-29 11:10:42,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 161 flow. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 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 11:10:42,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:42,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 77 [2025-04-29 11:10:42,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:42,300 INFO L116 PetriNetUnfolderBase]: 0/84 cut-off events. [2025-04-29 11:10:42,300 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:10:42,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 84 events. 0/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 10/90 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2025-04-29 11:10:42,302 INFO L140 encePairwiseOnDemand]: 66/77 looper letters, 9 selfloop transitions, 2 changer transitions 6/68 dead transitions. [2025-04-29 11:10:42,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 172 flow [2025-04-29 11:10:42,304 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:10:42,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:10:42,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 388 transitions. [2025-04-29 11:10:42,313 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8398268398268398 [2025-04-29 11:10:42,315 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 161 flow. Second operand 6 states and 388 transitions. [2025-04-29 11:10:42,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 68 transitions, 172 flow [2025-04-29 11:10:42,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:10:42,323 INFO L231 Difference]: Finished difference. Result has 75 places, 62 transitions, 146 flow [2025-04-29 11:10:42,325 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=75, PETRI_TRANSITIONS=62} [2025-04-29 11:10:42,329 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -2 predicate places. [2025-04-29 11:10:42,329 INFO L485 AbstractCegarLoop]: Abstraction has has 75 places, 62 transitions, 146 flow [2025-04-29 11:10:42,330 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 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 11:10:42,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:42,330 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] [2025-04-29 11:10:42,330 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:10:42,330 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-29 11:10:42,330 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:42,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1022777230, now seen corresponding path program 1 times [2025-04-29 11:10:42,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:42,331 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377662525] [2025-04-29 11:10:42,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:42,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:42,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-04-29 11:10:42,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-29 11:10:42,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:42,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:42,687 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 11:10:42,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:42,687 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377662525] [2025-04-29 11:10:42,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377662525] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:42,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:42,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:10:42,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705268989] [2025-04-29 11:10:42,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:42,689 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:10:42,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:42,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:10:42,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:10:42,808 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 77 [2025-04-29 11:10:42,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 62 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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 11:10:42,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:42,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 77 [2025-04-29 11:10:42,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:42,837 INFO L116 PetriNetUnfolderBase]: 0/71 cut-off events. [2025-04-29 11:10:42,837 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-29 11:10:42,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 71 events. 0/71 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2025-04-29 11:10:42,838 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 13 selfloop transitions, 5 changer transitions 0/61 dead transitions. [2025-04-29 11:10:42,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 61 transitions, 180 flow [2025-04-29 11:10:42,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:10:42,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:10:42,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 343 transitions. [2025-04-29 11:10:42,841 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7424242424242424 [2025-04-29 11:10:42,842 INFO L175 Difference]: Start difference. First operand has 75 places, 62 transitions, 146 flow. Second operand 6 states and 343 transitions. [2025-04-29 11:10:42,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 61 transitions, 180 flow [2025-04-29 11:10:42,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 61 transitions, 166 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-04-29 11:10:42,844 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 140 flow [2025-04-29 11:10:42,844 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=140, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2025-04-29 11:10:42,845 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -7 predicate places. [2025-04-29 11:10:42,845 INFO L485 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 140 flow [2025-04-29 11:10:42,845 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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 11:10:42,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:42,845 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] [2025-04-29 11:10:42,845 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:10:42,845 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-29 11:10:42,847 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:42,848 INFO L85 PathProgramCache]: Analyzing trace with hash 929948392, now seen corresponding path program 1 times [2025-04-29 11:10:42,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:42,849 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749892083] [2025-04-29 11:10:42,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:42,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:42,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-29 11:10:42,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-29 11:10:42,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:42,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:10:42,870 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 11:10:42,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-29 11:10:42,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-29 11:10:42,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:42,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:10:42,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-29 11:10:42,894 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 11:10:42,894 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-04-29 11:10:42,896 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-04-29 11:10:42,896 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-04-29 11:10:42,896 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-04-29 11:10:42,896 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-04-29 11:10:42,897 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:10:42,897 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-29 11:10:42,925 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:10:42,925 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:10:42,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:10:42 BasicIcfg [2025-04-29 11:10:42,932 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:10:42,933 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:10:42,933 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:10:42,933 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:10:42,934 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:41" (3/4) ... [2025-04-29 11:10:42,935 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-29 11:10:42,936 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:10:42,936 INFO L158 Benchmark]: Toolchain (without parser) took 1865.17ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 90.9MB in the end (delta: 21.0MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2025-04-29 11:10:42,937 INFO L158 Benchmark]: CDTParser took 1.25ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:42,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.83ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 97.9MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:10:42,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.67ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:42,937 INFO L158 Benchmark]: Boogie Preprocessor took 21.12ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 95.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:42,938 INFO L158 Benchmark]: RCFGBuilder took 260.21ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 81.3MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:10:42,938 INFO L158 Benchmark]: TraceAbstraction took 1338.86ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 90.9MB in the end (delta: -10.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:42,939 INFO L158 Benchmark]: Witness Printer took 3.00ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 90.9MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:42,940 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.83ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 97.9MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.67ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.12ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 95.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 260.21ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 81.3MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1338.86ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 90.9MB in the end (delta: -10.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.00ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 90.9MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 21]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of undefined function __sync_fetch_and_add at line 21. Possible FailurePath: [L18] 0 int data; VAL [data={1:0}] [L26] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data={1:0}, threads_total=2] [L27] CALL 0 assume_abort_if_not(threads_total >= 0) [L14] COND FALSE 0 !(!cond) VAL [\at(cond, Pre)=1, cond=1, data={1:0}] [L27] RET 0 assume_abort_if_not(threads_total >= 0) [L29] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data={1:0}, threads_total=2, tids={-2:0}] [L32] 0 int i = 0; VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L32] COND TRUE 0 i < threads_total VAL [data={1:0}] [L33] 0 pthread_create(&tids[i], NULL, &thread, NULL) VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L33] FCALL, FORK 0 pthread_create(&tids[i], NULL, &thread, NULL) VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L21] CALL 1 __sync_fetch_and_add(&data, 1) - UnprovableResult [Line: 38]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 33]: 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, 87 locations, 91 edges, 5 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: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 199 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 2 mSDtfsCounter, 199 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0.5s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces [2025-04-29 11:10:42,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/pthread-race-challenges/atomic-gcc.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.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 ac811cd758fcce6c1bde66c7a950a6c6edd23a32cc6b07ba2aa5a950b4bf2349 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:10:44,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:10:44,839 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2025-04-29 11:10:44,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:10:44,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:10:44,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:10:44,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:10:44,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:10:44,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:10:44,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:10:44,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:10:44,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:10:44,874 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:10:44,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:10:44,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:10:44,874 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:10:44,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:10:44,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:10:44,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:10:44,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:10:44,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:10:44,875 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:10:44,875 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-29 11:10:44,875 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-29 11:10:44,875 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:10:44,875 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:10:44,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:10:44,875 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:10:44,875 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:10:44,875 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:10:44,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:10:44,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:10:44,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:44,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:10:44,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:10:44,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:10:44,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:44,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:10:44,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:10:44,876 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:10:44,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:10:44,877 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-29 11:10:44,877 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-29 11:10:44,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:10:44,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:10:44,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:10:44,877 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 -> ac811cd758fcce6c1bde66c7a950a6c6edd23a32cc6b07ba2aa5a950b4bf2349 [2025-04-29 11:10:45,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:10:45,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:10:45,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:10:45,144 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:10:45,145 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:10:45,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-race-challenges/atomic-gcc.c [2025-04-29 11:10:46,517 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ccbbf48/6703a12bc95544b0b9a1a49355ed96c4/FLAG4362dd6c8 [2025-04-29 11:10:46,676 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:10:46,677 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-race-challenges/atomic-gcc.c [2025-04-29 11:10:46,678 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:10:46,678 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:10:46,684 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ccbbf48/6703a12bc95544b0b9a1a49355ed96c4/FLAG4362dd6c8 [2025-04-29 11:10:47,519 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ccbbf48/6703a12bc95544b0b9a1a49355ed96c4 [2025-04-29 11:10:47,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:10:47,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:10:47,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:10:47,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:10:47,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:10:47,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44412213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47, skipping insertion in model container [2025-04-29 11:10:47,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:10:47,671 WARN L638 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-04-29 11:10:47,704 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:10:47,714 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:10:47,735 WARN L638 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-04-29 11:10:47,748 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:10:47,757 WARN L1206 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-04-29 11:10:47,763 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:10:47,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47 WrapperNode [2025-04-29 11:10:47,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:10:47,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:10:47,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:10:47,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:10:47,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,803 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2025-04-29 11:10:47,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:10:47,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:10:47,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:10:47,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:10:47,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,822 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:10:47,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:10:47,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:10:47,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:10:47,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (1/1) ... [2025-04-29 11:10:47,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:47,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:10:47,853 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 11:10:47,857 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 11:10:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:10:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-04-29 11:10:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-04-29 11:10:47,871 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-04-29 11:10:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-29 11:10:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-04-29 11:10:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:10:47,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:10:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-29 11:10:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-04-29 11:10:47,872 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 11:10:47,933 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:10:47,935 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:10:48,128 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:10:48,128 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:10:48,138 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:10:48,139 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-29 11:10:48,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:48 BoogieIcfgContainer [2025-04-29 11:10:48,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:10:48,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:10:48,142 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:10:48,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:10:48,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:10:47" (1/3) ... [2025-04-29 11:10:48,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb74c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:10:48, skipping insertion in model container [2025-04-29 11:10:48,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:47" (2/3) ... [2025-04-29 11:10:48,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb74c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:10:48, skipping insertion in model container [2025-04-29 11:10:48,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:48" (3/3) ... [2025-04-29 11:10:48,149 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.c [2025-04-29 11:10:48,160 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:10:48,163 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.c that has 2 procedures, 72 locations, 74 edges, 1 initial locations, 3 loop locations, and 3 error locations. [2025-04-29 11:10:48,164 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:10:48,223 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-29 11:10:48,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 75 transitions, 157 flow [2025-04-29 11:10:48,304 INFO L116 PetriNetUnfolderBase]: 3/104 cut-off events. [2025-04-29 11:10:48,306 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:10:48,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 104 events. 3/104 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 137 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 51. Up to 3 conditions per place. [2025-04-29 11:10:48,311 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 75 transitions, 157 flow [2025-04-29 11:10:48,313 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 75 transitions, 157 flow [2025-04-29 11:10:48,324 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:10:48,332 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;@6331ba2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:10:48,332 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-29 11:10:48,343 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:10:48,343 INFO L116 PetriNetUnfolderBase]: 1/47 cut-off events. [2025-04-29 11:10:48,343 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:10:48,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:48,344 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] [2025-04-29 11:10:48,344 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-29 11:10:48,350 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:48,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1378176814, now seen corresponding path program 1 times [2025-04-29 11:10:48,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 11:10:48,358 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11657311] [2025-04-29 11:10:48,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:48,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:10:48,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:10:48,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:10:48,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-29 11:10:48,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-29 11:10:48,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-29 11:10:48,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:48,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:48,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 11:10:48,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:10:48,520 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 11:10:48,521 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:10:48,522 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-29 11:10:48,522 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11657311] [2025-04-29 11:10:48,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11657311] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:48,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:48,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:10:48,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632134103] [2025-04-29 11:10:48,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:48,530 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 11:10:48,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-29 11:10:48,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 11:10:48,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-29 11:10:48,661 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 75 [2025-04-29 11:10:48,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 75 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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 11:10:48,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:48,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 75 [2025-04-29 11:10:48,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:48,712 INFO L116 PetriNetUnfolderBase]: 0/83 cut-off events. [2025-04-29 11:10:48,712 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:10:48,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 83 events. 0/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 10/89 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2025-04-29 11:10:48,713 INFO L140 encePairwiseOnDemand]: 64/75 looper letters, 9 selfloop transitions, 2 changer transitions 6/67 dead transitions. [2025-04-29 11:10:48,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 67 transitions, 170 flow [2025-04-29 11:10:48,715 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:10:48,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:10:48,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 376 transitions. [2025-04-29 11:10:48,727 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8355555555555556 [2025-04-29 11:10:48,729 INFO L175 Difference]: Start difference. First operand has 75 places, 75 transitions, 157 flow. Second operand 6 states and 376 transitions. [2025-04-29 11:10:48,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 67 transitions, 170 flow [2025-04-29 11:10:48,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 170 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:10:48,736 INFO L231 Difference]: Finished difference. Result has 74 places, 61 transitions, 144 flow [2025-04-29 11:10:48,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=144, PETRI_PLACES=74, PETRI_TRANSITIONS=61} [2025-04-29 11:10:48,742 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2025-04-29 11:10:48,743 INFO L485 AbstractCegarLoop]: Abstraction has has 74 places, 61 transitions, 144 flow [2025-04-29 11:10:48,743 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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 11:10:48,743 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:48,744 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] [2025-04-29 11:10:48,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-29 11:10:48,948 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:10:48,948 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-29 11:10:48,949 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:48,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1794041045, now seen corresponding path program 1 times [2025-04-29 11:10:48,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 11:10:48,949 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1901068813] [2025-04-29 11:10:48,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:48,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:10:48,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:10:48,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:10:48,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-29 11:10:49,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-29 11:10:49,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-29 11:10:49,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:49,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:49,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-04-29 11:10:49,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:10:49,162 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2025-04-29 11:10:49,211 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2025-04-29 11:10:49,266 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-29 11:10:49,266 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 38 [2025-04-29 11:10:49,341 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-29 11:10:49,342 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2025-04-29 11:10:49,378 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 11:10:49,379 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:10:49,379 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-29 11:10:49,379 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901068813] [2025-04-29 11:10:49,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901068813] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:49,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:49,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-29 11:10:49,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947045896] [2025-04-29 11:10:49,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:49,380 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-29 11:10:49,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-29 11:10:49,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-29 11:10:49,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-04-29 11:10:49,673 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 75 [2025-04-29 11:10:49,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 61 transitions, 144 flow. Second operand has 11 states, 11 states have (on average 45.54545454545455) internal successors, (501), 11 states have internal predecessors, (501), 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 11:10:49,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:49,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 75 [2025-04-29 11:10:49,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:49,745 INFO L116 PetriNetUnfolderBase]: 0/71 cut-off events. [2025-04-29 11:10:49,745 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-29 11:10:49,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 71 events. 0/71 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2025-04-29 11:10:49,746 INFO L140 encePairwiseOnDemand]: 59/75 looper letters, 17 selfloop transitions, 15 changer transitions 0/67 dead transitions. [2025-04-29 11:10:49,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 67 transitions, 220 flow [2025-04-29 11:10:49,746 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-29 11:10:49,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-04-29 11:10:49,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 561 transitions. [2025-04-29 11:10:49,749 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6233333333333333 [2025-04-29 11:10:49,749 INFO L175 Difference]: Start difference. First operand has 74 places, 61 transitions, 144 flow. Second operand 12 states and 561 transitions. [2025-04-29 11:10:49,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 67 transitions, 220 flow [2025-04-29 11:10:49,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 67 transitions, 206 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-04-29 11:10:49,751 INFO L231 Difference]: Finished difference. Result has 81 places, 65 transitions, 190 flow [2025-04-29 11:10:49,751 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=190, PETRI_PLACES=81, PETRI_TRANSITIONS=65} [2025-04-29 11:10:49,752 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 6 predicate places. [2025-04-29 11:10:49,752 INFO L485 AbstractCegarLoop]: Abstraction has has 81 places, 65 transitions, 190 flow [2025-04-29 11:10:49,752 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 45.54545454545455) internal successors, (501), 11 states have internal predecessors, (501), 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 11:10:49,752 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:49,752 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] [2025-04-29 11:10:49,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-29 11:10:49,953 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:10:49,953 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-29 11:10:49,954 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:49,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1436935498, now seen corresponding path program 1 times [2025-04-29 11:10:49,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 11:10:49,954 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1693821880] [2025-04-29 11:10:49,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:49,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:10:49,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:10:49,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:10:49,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-29 11:10:49,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-04-29 11:10:49,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-04-29 11:10:49,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:49,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:10:49,997 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 11:10:50,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-04-29 11:10:50,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-04-29 11:10:50,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:50,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:10:50,035 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-04-29 11:10:50,036 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 11:10:50,037 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-04-29 11:10:50,038 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-04-29 11:10:50,039 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-04-29 11:10:50,039 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-04-29 11:10:50,039 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-04-29 11:10:50,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-29 11:10:50,243 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:10:50,243 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-29 11:10:50,274 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:10:50,274 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:10:50,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:10:50 BasicIcfg [2025-04-29 11:10:50,277 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:10:50,278 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:10:50,278 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:10:50,278 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:10:50,279 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:48" (3/4) ... [2025-04-29 11:10:50,280 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-29 11:10:50,280 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:10:50,281 INFO L158 Benchmark]: Toolchain (without parser) took 2758.84ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 34.6MB in the end (delta: 25.0MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2025-04-29 11:10:50,281 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:50,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.58ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 44.9MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:10:50,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.02ms. Allocated memory is still 83.9MB. Free memory was 44.9MB in the beginning and 43.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:50,282 INFO L158 Benchmark]: Boogie Preprocessor took 26.14ms. Allocated memory is still 83.9MB. Free memory was 43.1MB in the beginning and 41.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:50,282 INFO L158 Benchmark]: RCFGBuilder took 310.23ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 28.1MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:10:50,282 INFO L158 Benchmark]: TraceAbstraction took 2135.33ms. Allocated memory is still 83.9MB. Free memory was 27.5MB in the beginning and 34.6MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:50,282 INFO L158 Benchmark]: Witness Printer took 2.49ms. Allocated memory is still 83.9MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 5.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:50,283 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.58ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 44.9MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.02ms. Allocated memory is still 83.9MB. Free memory was 44.9MB in the beginning and 43.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.14ms. Allocated memory is still 83.9MB. Free memory was 43.1MB in the beginning and 41.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 310.23ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 28.1MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2135.33ms. Allocated memory is still 83.9MB. Free memory was 27.5MB in the beginning and 34.6MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.49ms. Allocated memory is still 83.9MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 5.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 21]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of undefined function __sync_fetch_and_add at line 21. Possible FailurePath: [L18] 0 int data; VAL [data={1:0}] [L26] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data={1:0}, threads_total=1073741824] [L27] CALL 0 assume_abort_if_not(threads_total >= 0) [L14] COND FALSE 0 !(!cond) VAL [\at(cond, Pre)=1, cond=1, data={1:0}] [L27] RET 0 assume_abort_if_not(threads_total >= 0) [L29] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data={1:0}, threads_total=1073741824, tids={2:0}] [L32] 0 int i = 0; VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L32] COND TRUE 0 i < threads_total VAL [data={1:0}] [L33] 0 pthread_create(&tids[i], NULL, &thread, NULL) VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L33] FCALL, FORK 0 pthread_create(&tids[i], NULL, &thread, NULL) VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L21] CALL 1 __sync_fetch_and_add(&data, 1) - UnprovableResult [Line: 38]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 33]: 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, 84 locations, 88 edges, 5 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: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 290 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 219 mSDsluCounter, 282 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 260 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 469 IncrementalHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 22 mSDtfsCounter, 469 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 247 SizeOfPredicates, 5 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces [2025-04-29 11:10:50,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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: UNKNOWN: Overapproximated counterexample