./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix055.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix055.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:23:45,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:23:45,391 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:23:45,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:23:45,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:23:45,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:23:45,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:23:45,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:23:45,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:23:45,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:23:45,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:23:45,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:23:45,427 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:23:45,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:23:45,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:23:45,431 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:23:45,432 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:23:45,432 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:23:45,432 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:23:45,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:23:45,433 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:23:45,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:23:45,433 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:23:45,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:23:45,434 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:23:45,434 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:23:45,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:23:45,435 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:23:45,435 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:23:45,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:23:45,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:23:45,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:23:45,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:23:45,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:23:45,437 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:23:45,437 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:23:45,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:23:45,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:23:45,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:23:45,438 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:23:45,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:23:45,439 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 [2024-11-16 23:23:45,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:23:45,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:23:45,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:23:45,728 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:23:45,729 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:23:45,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix055.opt.i [2024-11-16 23:23:47,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:23:47,424 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:23:47,425 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055.opt.i [2024-11-16 23:23:47,444 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ceaf26c5/e8ecb818311b4467b2e0a489017cf36d/FLAG59e96cc7a [2024-11-16 23:23:47,460 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ceaf26c5/e8ecb818311b4467b2e0a489017cf36d [2024-11-16 23:23:47,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:23:47,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:23:47,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:23:47,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:23:47,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:23:47,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:23:47" (1/1) ... [2024-11-16 23:23:47,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f420935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:47, skipping insertion in model container [2024-11-16 23:23:47,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:23:47" (1/1) ... [2024-11-16 23:23:47,521 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:23:48,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:23:48,038 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:23:48,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:23:48,173 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:23:48,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48 WrapperNode [2024-11-16 23:23:48,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:23:48,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:23:48,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:23:48,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:23:48,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (1/1) ... [2024-11-16 23:23:48,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (1/1) ... [2024-11-16 23:23:48,271 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 947 [2024-11-16 23:23:48,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:23:48,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:23:48,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:23:48,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:23:48,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (1/1) ... [2024-11-16 23:23:48,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (1/1) ... [2024-11-16 23:23:48,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (1/1) ... [2024-11-16 23:23:48,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (1/1) ... [2024-11-16 23:23:48,314 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (1/1) ... [2024-11-16 23:23:48,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (1/1) ... [2024-11-16 23:23:48,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (1/1) ... [2024-11-16 23:23:48,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (1/1) ... [2024-11-16 23:23:48,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:23:48,331 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:23:48,331 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:23:48,331 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:23:48,332 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (1/1) ... [2024-11-16 23:23:48,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:23:48,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:23:48,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:23:48,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:23:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 23:23:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:23:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-16 23:23:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-16 23:23:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-16 23:23:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-16 23:23:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-16 23:23:48,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-16 23:23:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-16 23:23:48,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-16 23:23:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:23:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 23:23:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:23:48,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:23:48,435 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:23:48,602 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:23:48,604 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:23:49,783 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:23:49,784 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:23:53,157 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2024-11-16 23:23:53,204 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2024-11-16 23:23:53,254 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2024-11-16 23:23:53,312 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:23:53,312 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:23:53,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:23:53 BoogieIcfgContainer [2024-11-16 23:23:53,313 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:23:53,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:23:53,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:23:53,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:23:53,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:23:47" (1/3) ... [2024-11-16 23:23:53,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513167bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:23:53, skipping insertion in model container [2024-11-16 23:23:53,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:48" (2/3) ... [2024-11-16 23:23:53,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513167bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:23:53, skipping insertion in model container [2024-11-16 23:23:53,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:23:53" (3/3) ... [2024-11-16 23:23:53,323 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055.opt.i [2024-11-16 23:23:53,341 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:23:53,341 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 223 error locations. [2024-11-16 23:23:53,342 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:23:53,691 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:23:53,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 362 places, 418 transitions, 852 flow [2024-11-16 23:23:54,032 INFO L124 PetriNetUnfolderBase]: 69/414 cut-off events. [2024-11-16 23:23:54,033 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:23:54,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 414 events. 69/414 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 1932 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 378. Up to 2 conditions per place. [2024-11-16 23:23:54,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 362 places, 418 transitions, 852 flow [2024-11-16 23:23:54,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 358 places, 414 transitions, 840 flow [2024-11-16 23:23:54,117 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:23:54,126 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5cbb3865, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:23:54,127 INFO L334 AbstractCegarLoop]: Starting to check reachability of 319 error locations. [2024-11-16 23:23:54,136 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:23:54,138 INFO L124 PetriNetUnfolderBase]: 0/45 cut-off events. [2024-11-16 23:23:54,138 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:23:54,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:23:54,139 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:23:54,140 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err3ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 315 more)] === [2024-11-16 23:23:54,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:23:54,145 INFO L85 PathProgramCache]: Analyzing trace with hash 353435274, now seen corresponding path program 1 times [2024-11-16 23:23:54,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:23:54,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903793506] [2024-11-16 23:23:54,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:23:54,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:23:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:23:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:23:54,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:23:54,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903793506] [2024-11-16 23:23:54,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903793506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:23:54,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:23:54,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:23:54,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067260208] [2024-11-16 23:23:54,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:23:54,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:23:54,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:23:54,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:23:54,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:23:54,492 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 418 [2024-11-16 23:23:54,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 414 transitions, 840 flow. Second operand has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:23:54,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:23:54,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 418 [2024-11-16 23:23:54,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:24:12,851 INFO L124 PetriNetUnfolderBase]: 9370/23188 cut-off events. [2024-11-16 23:24:12,851 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-16 23:24:12,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35531 conditions, 23188 events. 9370/23188 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 879. Compared 260485 event pairs, 7720 based on Foata normal form. 1819/21918 useless extension candidates. Maximal degree in co-relation 35480. Up to 12026 conditions per place. [2024-11-16 23:24:13,055 INFO L140 encePairwiseOnDemand]: 131/418 looper letters, 26 selfloop transitions, 0 changer transitions 0/125 dead transitions. [2024-11-16 23:24:13,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 125 transitions, 314 flow [2024-11-16 23:24:13,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:24:13,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:24:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 521 transitions. [2024-11-16 23:24:13,074 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6232057416267942 [2024-11-16 23:24:13,076 INFO L175 Difference]: Start difference. First operand has 358 places, 414 transitions, 840 flow. Second operand 2 states and 521 transitions. [2024-11-16 23:24:13,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 125 transitions, 314 flow [2024-11-16 23:24:13,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 125 transitions, 310 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-16 23:24:13,083 INFO L231 Difference]: Finished difference. Result has 132 places, 125 transitions, 258 flow [2024-11-16 23:24:13,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=258, PETRI_PLACES=132, PETRI_TRANSITIONS=125} [2024-11-16 23:24:13,090 INFO L277 CegarLoopForPetriNet]: 358 programPoint places, -226 predicate places. [2024-11-16 23:24:13,090 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 125 transitions, 258 flow [2024-11-16 23:24:13,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:24:13,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:24:13,091 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:24:13,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:24:13,091 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr128ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 315 more)] === [2024-11-16 23:24:13,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:24:13,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1991714511, now seen corresponding path program 1 times [2024-11-16 23:24:13,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:24:13,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386636190] [2024-11-16 23:24:13,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:24:13,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:24:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:24:13,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:24:13,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:24:13,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386636190] [2024-11-16 23:24:13,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386636190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:24:13,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:24:13,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:24:13,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192459958] [2024-11-16 23:24:13,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:24:13,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:24:13,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:24:13,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:24:13,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:24:13,265 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 418 [2024-11-16 23:24:13,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 125 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:24:13,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:24:13,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 418 [2024-11-16 23:24:13,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand