./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix007.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f 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/mix007.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 98fb631b7747d0724c093b074b80cf02851c21b4b9e1af2c5f1e3d032d6b592f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:14:01,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:14:01,101 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:14:01,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:14:01,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:14:01,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:14:01,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:14:01,145 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:14:01,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:14:01,147 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:14:01,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:14:01,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:14:01,148 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:14:01,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:14:01,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:14:01,149 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:14:01,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:14:01,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:14:01,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:14:01,153 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:14:01,153 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:14:01,153 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:14:01,154 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:14:01,154 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:14:01,154 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:14:01,154 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:14:01,155 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:14:01,155 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:14:01,155 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:14:01,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:14:01,156 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:14:01,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:14:01,156 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:14:01,157 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:14:01,157 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:14:01,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:14:01,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:14:01,158 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:14:01,158 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:14:01,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:14:01,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:14:01,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98fb631b7747d0724c093b074b80cf02851c21b4b9e1af2c5f1e3d032d6b592f [2024-11-12 12:14:01,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:14:01,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:14:01,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:14:01,474 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:14:01,474 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:14:01,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix007.opt.i [2024-11-12 12:14:02,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:14:03,253 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:14:03,254 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix007.opt.i [2024-11-12 12:14:03,272 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99c6b897/30791aeea26d437faa46d353d3e4c29b/FLAG422ab9db6 [2024-11-12 12:14:03,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99c6b897/30791aeea26d437faa46d353d3e4c29b [2024-11-12 12:14:03,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:14:03,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:14:03,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:14:03,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:14:03,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:14:03,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:03,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1190decc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03, skipping insertion in model container [2024-11-12 12:14:03,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:03,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:14:03,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:14:03,824 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:14:03,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:14:03,961 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:14:03,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03 WrapperNode [2024-11-12 12:14:03,962 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:14:03,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:14:03,963 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:14:03,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:14:03,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:04,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:04,061 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 971 [2024-11-12 12:14:04,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:14:04,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:14:04,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:14:04,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:14:04,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:04,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:04,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:04,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:04,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:04,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:04,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:04,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:04,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:14:04,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:14:04,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:14:04,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:14:04,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (1/1) ... [2024-11-12 12:14:04,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:14:04,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:14:04,223 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) [2024-11-12 12:14:04,226 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 [2024-11-12 12:14:04,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 12:14:04,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:14:04,266 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 12:14:04,266 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 12:14:04,266 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 12:14:04,266 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 12:14:04,266 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-12 12:14:04,266 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-12 12:14:04,267 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-12 12:14:04,267 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-12 12:14:04,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:14:04,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 12:14:04,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:14:04,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:14:04,272 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:14:04,477 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:14:04,480 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:14:06,187 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:14:06,187 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:14:12,734 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:14:12,735 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 12:14:12,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:12 BoogieIcfgContainer [2024-11-12 12:14:12,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:14:12,738 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:14:12,738 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:14:12,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:14:12,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:14:03" (1/3) ... [2024-11-12 12:14:12,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c209cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:12, skipping insertion in model container [2024-11-12 12:14:12,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:03" (2/3) ... [2024-11-12 12:14:12,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c209cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:12, skipping insertion in model container [2024-11-12 12:14:12,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:12" (3/3) ... [2024-11-12 12:14:12,746 INFO L112 eAbstractionObserver]: Analyzing ICFG mix007.opt.i [2024-11-12 12:14:12,766 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:14:12,766 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 296 error locations. [2024-11-12 12:14:12,767 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:14:13,162 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:14:13,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 430 transitions, 876 flow [2024-11-12 12:14:13,619 INFO L124 PetriNetUnfolderBase]: 3/426 cut-off events. [2024-11-12 12:14:13,620 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:14:13,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 426 events. 3/426 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2570 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 387. Up to 2 conditions per place. [2024-11-12 12:14:13,640 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 430 transitions, 876 flow [2024-11-12 12:14:13,678 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 436 places, 426 transitions, 864 flow [2024-11-12 12:14:13,690 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:14:13,698 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;@1bc06d58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:14:13,699 INFO L334 AbstractCegarLoop]: Starting to check reachability of 557 error locations. [2024-11-12 12:14:13,708 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:14:13,708 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2024-11-12 12:14:13,708 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:14:13,709 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:14:13,710 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:14:13,710 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 553 more)] === [2024-11-12 12:14:13,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:14:13,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1015846372, now seen corresponding path program 1 times [2024-11-12 12:14:13,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:14:13,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238815779] [2024-11-12 12:14:13,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:14:13,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:14:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:14:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:14:13,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:14:13,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238815779] [2024-11-12 12:14:13,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238815779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:14:13,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:14:13,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 12:14:13,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849110028] [2024-11-12 12:14:13,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:14:14,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:14:14,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:14:14,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:14:14,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:14:14,045 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 430 [2024-11-12 12:14:14,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 426 transitions, 864 flow. Second operand has 2 states, 2 states have (on average 111.0) internal successors, (222), 2 states have internal predecessors, (222), 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) [2024-11-12 12:14:14,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:14:14,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 430 [2024-11-12 12:14:14,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:14:23,221 INFO L124 PetriNetUnfolderBase]: 5748/16357 cut-off events. [2024-11-12 12:14:23,222 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-12 12:14:23,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24333 conditions, 16357 events. 5748/16357 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 190810 event pairs, 5748 based on Foata normal form. 1391/16633 useless extension candidates. Maximal degree in co-relation 24279. Up to 7769 conditions per place. [2024-11-12 12:14:23,427 INFO L140 encePairwiseOnDemand]: 133/430 looper letters, 22 selfloop transitions, 0 changer transitions 0/127 dead transitions. [2024-11-12 12:14:23,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 127 transitions, 310 flow [2024-11-12 12:14:23,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:14:23,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 12:14:23,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 539 transitions. [2024-11-12 12:14:23,445 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6267441860465116 [2024-11-12 12:14:23,448 INFO L175 Difference]: Start difference. First operand has 436 places, 426 transitions, 864 flow. Second operand 2 states and 539 transitions. [2024-11-12 12:14:23,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 127 transitions, 310 flow [2024-11-12 12:14:23,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 127 transitions, 306 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 12:14:23,455 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 262 flow [2024-11-12 12:14:23,458 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=262, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2024-11-12 12:14:23,465 INFO L279 CegarLoopForPetriNet]: 436 programPoint places, -299 predicate places. [2024-11-12 12:14:23,466 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 262 flow [2024-11-12 12:14:23,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 111.0) internal successors, (222), 2 states have internal predecessors, (222), 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) [2024-11-12 12:14:23,467 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:14:23,467 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:14:23,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:14:23,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 553 more)] === [2024-11-12 12:14:23,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:14:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash -740402280, now seen corresponding path program 1 times [2024-11-12 12:14:23,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:14:23,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668154079] [2024-11-12 12:14:23,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:14:23,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:14:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:14:23,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:14:23,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:14:23,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668154079] [2024-11-12 12:14:23,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668154079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:14:23,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:14:23,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:14:23,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364900671] [2024-11-12 12:14:23,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:14:23,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:14:23,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:14:23,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:14:23,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:14:23,685 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 430 [2024-11-12 12:14:23,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-12 12:14:23,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:14:23,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 430 [2024-11-12 12:14:23,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:14:34,801 INFO L124 PetriNetUnfolderBase]: 8756/23452 cut-off events. [2024-11-12 12:14:34,802 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:14:34,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35393 conditions, 23452 events. 8756/23452 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 268096 event pairs, 2740 based on Foata normal form. 0/21970 useless extension candidates. Maximal degree in co-relation 35390. Up to 7936 conditions per place. [2024-11-12 12:14:34,962 INFO L140 encePairwiseOnDemand]: 428/430 looper letters, 38 selfloop transitions, 1 changer transitions 0/141 dead transitions. [2024-11-12 12:14:34,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 141 transitions, 368 flow [2024-11-12 12:14:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:14:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:14:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-11-12 12:14:34,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27984496124031005 [2024-11-12 12:14:34,968 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 262 flow. Second operand 3 states and 361 transitions. [2024-11-12 12:14:34,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 141 transitions, 368 flow [2024-11-12 12:14:34,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 141 transitions, 368 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:14:34,972 INFO L231 Difference]: Finished difference. Result has 138 places, 126 transitions, 262 flow [2024-11-12 12:14:34,973 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=138, PETRI_TRANSITIONS=126} [2024-11-12 12:14:34,974 INFO L279 CegarLoopForPetriNet]: 436 programPoint places, -298 predicate places. [2024-11-12 12:14:34,975 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 126 transitions, 262 flow [2024-11-12 12:14:34,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-12 12:14:34,976 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:14:34,976 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:14:34,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:14:34,976 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 553 more)] === [2024-11-12 12:14:34,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:14:34,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1553516993, now seen corresponding path program 1 times [2024-11-12 12:14:34,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:14:34,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530500447] [2024-11-12 12:14:34,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:14:34,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:14:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:14:35,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:14:35,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:14:35,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530500447] [2024-11-12 12:14:35,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530500447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:14:35,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:14:35,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:14:35,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170663343] [2024-11-12 12:14:35,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:14:35,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:14:35,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:14:35,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:14:35,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:14:35,197 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 430 [2024-11-12 12:14:35,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 126 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2024-11-12 12:14:35,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:14:35,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 430 [2024-11-12 12:14:35,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand