./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.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/goblint-regression/28-race_reach_28-funptr_racefree.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 3e2d1ca14c91be6e836759580a015ed2d4b9eb8ea9888f9f925ea579405b630f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:40:11,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:40:11,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:40:11,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:40:11,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:40:11,363 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:40:11,364 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:40:11,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:40:11,365 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:40:11,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:40:11,366 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:40:11,366 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:40:11,367 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:40:11,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:40:11,368 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:40:11,368 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:40:11,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:40:11,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:40:11,369 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:40:11,369 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:40:11,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:40:11,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:40:11,373 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:40:11,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:40:11,373 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:40:11,374 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:40:11,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:40:11,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:40:11,374 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:40:11,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:40:11,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:40:11,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:40:11,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:40:11,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:40:11,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:40:11,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:40:11,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:40:11,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:40:11,381 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:40:11,382 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:40:11,382 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:40:11,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e2d1ca14c91be6e836759580a015ed2d4b9eb8ea9888f9f925ea579405b630f [2024-11-16 23:40:11,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:40:11,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:40:11,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:40:11,649 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:40:11,649 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:40:11,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i [2024-11-16 23:40:13,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:40:13,446 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:40:13,447 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i [2024-11-16 23:40:13,470 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed63f628/c447745565064e2087066cdc9bded9fd/FLAG6b88ce39d [2024-11-16 23:40:13,731 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed63f628/c447745565064e2087066cdc9bded9fd [2024-11-16 23:40:13,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:40:13,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:40:13,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:40:13,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:40:13,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:40:13,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:13" (1/1) ... [2024-11-16 23:40:13,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f371b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:13, skipping insertion in model container [2024-11-16 23:40:13,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:13" (1/1) ... [2024-11-16 23:40:13,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:40:14,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:40:14,304 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:40:14,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:40:14,423 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:40:14,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14 WrapperNode [2024-11-16 23:40:14,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:40:14,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:40:14,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:40:14,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:40:14,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (1/1) ... [2024-11-16 23:40:14,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (1/1) ... [2024-11-16 23:40:14,496 INFO L138 Inliner]: procedures = 252, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-11-16 23:40:14,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:40:14,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:40:14,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:40:14,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:40:14,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (1/1) ... [2024-11-16 23:40:14,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (1/1) ... [2024-11-16 23:40:14,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (1/1) ... [2024-11-16 23:40:14,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (1/1) ... [2024-11-16 23:40:14,527 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (1/1) ... [2024-11-16 23:40:14,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (1/1) ... [2024-11-16 23:40:14,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (1/1) ... [2024-11-16 23:40:14,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (1/1) ... [2024-11-16 23:40:14,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:40:14,541 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:40:14,545 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:40:14,545 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:40:14,546 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (1/1) ... [2024-11-16 23:40:14,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:40:14,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:40:14,588 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 23:40:14,591 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 23:40:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:40:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:40:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:40:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:40:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:40:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:40:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:40:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-16 23:40:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-16 23:40:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:40:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:40:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:40:14,644 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 23:40:14,783 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:40:14,785 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:40:15,020 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L911: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-16 23:40:15,020 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L911-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-16 23:40:15,098 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:40:15,099 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:40:15,153 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:40:15,155 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:40:15,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:40:15 BoogieIcfgContainer [2024-11-16 23:40:15,155 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:40:15,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:40:15,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:40:15,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:40:15,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:40:13" (1/3) ... [2024-11-16 23:40:15,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21345323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:40:15, skipping insertion in model container [2024-11-16 23:40:15,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:14" (2/3) ... [2024-11-16 23:40:15,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21345323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:40:15, skipping insertion in model container [2024-11-16 23:40:15,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:40:15" (3/3) ... [2024-11-16 23:40:15,165 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_28-funptr_racefree.i [2024-11-16 23:40:15,182 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:40:15,183 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-16 23:40:15,184 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:40:15,263 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 23:40:15,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 176 transitions, 359 flow [2024-11-16 23:40:15,391 INFO L124 PetriNetUnfolderBase]: 19/248 cut-off events. [2024-11-16 23:40:15,392 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:40:15,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 248 events. 19/248 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 754 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 137. Up to 4 conditions per place. [2024-11-16 23:40:15,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 166 places, 176 transitions, 359 flow [2024-11-16 23:40:15,414 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 176 transitions, 359 flow [2024-11-16 23:40:15,427 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:40:15,435 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;@385d4d03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:40:15,436 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-16 23:40:15,451 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:40:15,452 INFO L124 PetriNetUnfolderBase]: 1/50 cut-off events. [2024-11-16 23:40:15,452 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:40:15,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:15,453 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] [2024-11-16 23:40:15,453 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:40:15,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:15,460 INFO L85 PathProgramCache]: Analyzing trace with hash -819426513, now seen corresponding path program 1 times [2024-11-16 23:40:15,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:15,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129979276] [2024-11-16 23:40:15,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:15,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:15,756 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 23:40:15,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:15,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129979276] [2024-11-16 23:40:15,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129979276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:15,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:15,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:15,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684923339] [2024-11-16 23:40:15,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:15,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:40:15,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:15,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:40:15,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:40:15,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 176 [2024-11-16 23:40:15,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 176 transitions, 359 flow. Second operand has 2 states, 2 states have (on average 148.0) internal successors, (296), 2 states have internal predecessors, (296), 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 23:40:15,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:15,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 176 [2024-11-16 23:40:15,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:15,966 INFO L124 PetriNetUnfolderBase]: 49/598 cut-off events. [2024-11-16 23:40:15,966 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:40:15,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 598 events. 49/598 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2851 event pairs, 48 based on Foata normal form. 97/642 useless extension candidates. Maximal degree in co-relation 605. Up to 119 conditions per place. [2024-11-16 23:40:15,974 INFO L140 encePairwiseOnDemand]: 164/176 looper letters, 16 selfloop transitions, 0 changer transitions 0/162 dead transitions. [2024-11-16 23:40:15,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 162 transitions, 363 flow [2024-11-16 23:40:15,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:40:15,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:40:15,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 322 transitions. [2024-11-16 23:40:15,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9147727272727273 [2024-11-16 23:40:15,994 INFO L175 Difference]: Start difference. First operand has 166 places, 176 transitions, 359 flow. Second operand 2 states and 322 transitions. [2024-11-16 23:40:15,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 162 transitions, 363 flow [2024-11-16 23:40:16,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 162 transitions, 363 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:16,004 INFO L231 Difference]: Finished difference. Result has 165 places, 162 transitions, 331 flow [2024-11-16 23:40:16,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=331, PETRI_PLACES=165, PETRI_TRANSITIONS=162} [2024-11-16 23:40:16,013 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, -1 predicate places. [2024-11-16 23:40:16,013 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 162 transitions, 331 flow [2024-11-16 23:40:16,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 148.0) internal successors, (296), 2 states have internal predecessors, (296), 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 23:40:16,014 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:16,014 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] [2024-11-16 23:40:16,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:40:16,016 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:40:16,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:16,016 INFO L85 PathProgramCache]: Analyzing trace with hash 39671614, now seen corresponding path program 1 times [2024-11-16 23:40:16,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:16,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4649973] [2024-11-16 23:40:16,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:16,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:16,183 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 23:40:16,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:16,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4649973] [2024-11-16 23:40:16,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4649973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:16,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:16,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:40:16,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069489457] [2024-11-16 23:40:16,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:16,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:16,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:16,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:16,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:16,232 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 176 [2024-11-16 23:40:16,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 162 transitions, 331 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 23:40:16,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:16,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 176 [2024-11-16 23:40:16,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:16,421 INFO L124 PetriNetUnfolderBase]: 80/750 cut-off events. [2024-11-16 23:40:16,421 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:40:16,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 940 conditions, 750 events. 80/750 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4045 event pairs, 63 based on Foata normal form. 1/682 useless extension candidates. Maximal degree in co-relation 936. Up to 174 conditions per place. [2024-11-16 23:40:16,430 INFO L140 encePairwiseOnDemand]: 173/176 looper letters, 28 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2024-11-16 23:40:16,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 170 transitions, 407 flow [2024-11-16 23:40:16,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:16,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:16,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2024-11-16 23:40:16,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8598484848484849 [2024-11-16 23:40:16,437 INFO L175 Difference]: Start difference. First operand has 165 places, 162 transitions, 331 flow. Second operand 3 states and 454 transitions. [2024-11-16 23:40:16,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 170 transitions, 407 flow [2024-11-16 23:40:16,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 170 transitions, 407 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:16,445 INFO L231 Difference]: Finished difference. Result has 168 places, 162 transitions, 339 flow [2024-11-16 23:40:16,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=168, PETRI_TRANSITIONS=162} [2024-11-16 23:40:16,448 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 2 predicate places. [2024-11-16 23:40:16,449 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 162 transitions, 339 flow [2024-11-16 23:40:16,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 23:40:16,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:16,450 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 23:40:16,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:40:16,450 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:40:16,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:16,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1457814848, now seen corresponding path program 1 times [2024-11-16 23:40:16,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:16,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953627743] [2024-11-16 23:40:16,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:16,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:17,015 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 23:40:17,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:17,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953627743] [2024-11-16 23:40:17,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953627743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:17,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:17,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:40:17,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250004767] [2024-11-16 23:40:17,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:17,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:40:17,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:17,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:40:17,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:17,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 176 [2024-11-16 23:40:17,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 162 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 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 23:40:17,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:17,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 176 [2024-11-16 23:40:17,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:17,410 INFO L124 PetriNetUnfolderBase]: 160/1140 cut-off events. [2024-11-16 23:40:17,411 INFO L125 PetriNetUnfolderBase]: For 16/19 co-relation queries the response was YES. [2024-11-16 23:40:17,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1536 conditions, 1140 events. 160/1140 cut-off events. For 16/19 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7211 event pairs, 93 based on Foata normal form. 0/1037 useless extension candidates. Maximal degree in co-relation 1530. Up to 267 conditions per place. [2024-11-16 23:40:17,418 INFO L140 encePairwiseOnDemand]: 170/176 looper letters, 60 selfloop transitions, 5 changer transitions 0/193 dead transitions. [2024-11-16 23:40:17,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 193 transitions, 531 flow [2024-11-16 23:40:17,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:40:17,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:40:17,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 840 transitions. [2024-11-16 23:40:17,424 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7954545454545454 [2024-11-16 23:40:17,424 INFO L175 Difference]: Start difference. First operand has 168 places, 162 transitions, 339 flow. Second operand 6 states and 840 transitions. [2024-11-16 23:40:17,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 193 transitions, 531 flow [2024-11-16 23:40:17,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 193 transitions, 527 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:17,430 INFO L231 Difference]: Finished difference. Result has 170 places, 161 transitions, 343 flow [2024-11-16 23:40:17,431 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=343, PETRI_PLACES=170, PETRI_TRANSITIONS=161} [2024-11-16 23:40:17,432 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 4 predicate places. [2024-11-16 23:40:17,432 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 161 transitions, 343 flow [2024-11-16 23:40:17,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 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 23:40:17,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:17,433 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] [2024-11-16 23:40:17,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:40:17,434 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:40:17,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:17,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1555458366, now seen corresponding path program 1 times [2024-11-16 23:40:17,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:17,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148143548] [2024-11-16 23:40:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:17,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:17,487 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 23:40:17,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:17,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148143548] [2024-11-16 23:40:17,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148143548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:17,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:17,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:17,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971637839] [2024-11-16 23:40:17,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:17,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:17,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:17,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:17,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:17,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 176 [2024-11-16 23:40:17,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 161 transitions, 343 flow. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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 23:40:17,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:17,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 176 [2024-11-16 23:40:17,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:17,681 INFO L124 PetriNetUnfolderBase]: 114/1138 cut-off events. [2024-11-16 23:40:17,681 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:40:17,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1423 conditions, 1138 events. 114/1138 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7406 event pairs, 36 based on Foata normal form. 0/1028 useless extension candidates. Maximal degree in co-relation 1417. Up to 133 conditions per place. [2024-11-16 23:40:17,687 INFO L140 encePairwiseOnDemand]: 172/176 looper letters, 33 selfloop transitions, 3 changer transitions 0/177 dead transitions. [2024-11-16 23:40:17,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 177 transitions, 450 flow [2024-11-16 23:40:17,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:17,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2024-11-16 23:40:17,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8825757575757576 [2024-11-16 23:40:17,689 INFO L175 Difference]: Start difference. First operand has 170 places, 161 transitions, 343 flow. Second operand 3 states and 466 transitions. [2024-11-16 23:40:17,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 177 transitions, 450 flow [2024-11-16 23:40:17,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 177 transitions, 440 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:40:17,693 INFO L231 Difference]: Finished difference. Result has 169 places, 163 transitions, 355 flow [2024-11-16 23:40:17,694 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=169, PETRI_TRANSITIONS=163} [2024-11-16 23:40:17,694 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 3 predicate places. [2024-11-16 23:40:17,695 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 163 transitions, 355 flow [2024-11-16 23:40:17,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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 23:40:17,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:17,695 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:17,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:40:17,696 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:40:17,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:17,697 INFO L85 PathProgramCache]: Analyzing trace with hash 82452200, now seen corresponding path program 1 times [2024-11-16 23:40:17,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:17,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413069003] [2024-11-16 23:40:17,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:17,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:17,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:17,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:17,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413069003] [2024-11-16 23:40:17,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413069003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:40:17,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200884127] [2024-11-16 23:40:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:17,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:40:17,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:40:17,812 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) [2024-11-16 23:40:17,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:40:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:17,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 23:40:17,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:40:17,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:40:17,946 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:40:17,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200884127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:17,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:40:17,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-16 23:40:17,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225291977] [2024-11-16 23:40:17,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:17,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:17,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:17,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:17,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:17,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 176 [2024-11-16 23:40:17,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 163 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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 23:40:17,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:17,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 176 [2024-11-16 23:40:17,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:18,228 INFO L124 PetriNetUnfolderBase]: 183/1503 cut-off events. [2024-11-16 23:40:18,229 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-11-16 23:40:18,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1981 conditions, 1503 events. 183/1503 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 10834 event pairs, 136 based on Foata normal form. 0/1341 useless extension candidates. Maximal degree in co-relation 1974. Up to 345 conditions per place. [2024-11-16 23:40:18,238 INFO L140 encePairwiseOnDemand]: 171/176 looper letters, 31 selfloop transitions, 5 changer transitions 0/174 dead transitions. [2024-11-16 23:40:18,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 174 transitions, 453 flow [2024-11-16 23:40:18,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:18,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:18,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2024-11-16 23:40:18,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8579545454545454 [2024-11-16 23:40:18,241 INFO L175 Difference]: Start difference. First operand has 169 places, 163 transitions, 355 flow. Second operand 3 states and 453 transitions. [2024-11-16 23:40:18,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 174 transitions, 453 flow [2024-11-16 23:40:18,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 174 transitions, 445 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:18,247 INFO L231 Difference]: Finished difference. Result has 171 places, 166 transitions, 385 flow [2024-11-16 23:40:18,247 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=171, PETRI_TRANSITIONS=166} [2024-11-16 23:40:18,250 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 5 predicate places. [2024-11-16 23:40:18,252 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 166 transitions, 385 flow [2024-11-16 23:40:18,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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 23:40:18,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:18,253 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:18,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 23:40:18,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:40:18,454 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:40:18,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:18,457 INFO L85 PathProgramCache]: Analyzing trace with hash 923531023, now seen corresponding path program 1 times [2024-11-16 23:40:18,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:18,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797972013] [2024-11-16 23:40:18,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:18,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:40:18,488 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:40:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:40:18,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:40:18,538 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:40:18,539 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-16 23:40:18,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-16 23:40:18,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-16 23:40:18,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-16 23:40:18,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-16 23:40:18,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-16 23:40:18,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-16 23:40:18,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-16 23:40:18,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-16 23:40:18,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-16 23:40:18,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-16 23:40:18,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-16 23:40:18,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-16 23:40:18,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-16 23:40:18,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-16 23:40:18,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:40:18,548 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-16 23:40:18,551 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:40:18,551 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:40:18,593 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 23:40:18,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 240 transitions, 496 flow [2024-11-16 23:40:18,650 INFO L124 PetriNetUnfolderBase]: 34/413 cut-off events. [2024-11-16 23:40:18,651 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:40:18,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 413 events. 34/413 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1510 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 250. Up to 8 conditions per place. [2024-11-16 23:40:18,655 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 240 transitions, 496 flow [2024-11-16 23:40:18,660 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 240 transitions, 496 flow [2024-11-16 23:40:18,662 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:40:18,663 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;@385d4d03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:40:18,664 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-16 23:40:18,667 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:40:18,669 INFO L124 PetriNetUnfolderBase]: 1/50 cut-off events. [2024-11-16 23:40:18,669 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:40:18,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:18,670 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] [2024-11-16 23:40:18,670 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:40:18,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:18,671 INFO L85 PathProgramCache]: Analyzing trace with hash 173159455, now seen corresponding path program 1 times [2024-11-16 23:40:18,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:18,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627311195] [2024-11-16 23:40:18,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:18,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:18,693 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 23:40:18,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:18,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627311195] [2024-11-16 23:40:18,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627311195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:18,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:18,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:18,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052269718] [2024-11-16 23:40:18,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:18,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:40:18,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:18,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:40:18,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:40:18,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 240 [2024-11-16 23:40:18,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 240 transitions, 496 flow. Second operand has 2 states, 2 states have (on average 196.0) internal successors, (392), 2 states have internal predecessors, (392), 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 23:40:18,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:18,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 240 [2024-11-16 23:40:18,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:19,563 INFO L124 PetriNetUnfolderBase]: 1004/5649 cut-off events. [2024-11-16 23:40:19,564 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-16 23:40:19,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7360 conditions, 5649 events. 1004/5649 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 54204 event pairs, 1000 based on Foata normal form. 1359/6511 useless extension candidates. Maximal degree in co-relation 6479. Up to 1658 conditions per place. [2024-11-16 23:40:19,602 INFO L140 encePairwiseOnDemand]: 222/240 looper letters, 26 selfloop transitions, 0 changer transitions 0/220 dead transitions. [2024-11-16 23:40:19,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 220 transitions, 508 flow [2024-11-16 23:40:19,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:40:19,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:40:19,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 434 transitions. [2024-11-16 23:40:19,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9041666666666667 [2024-11-16 23:40:19,604 INFO L175 Difference]: Start difference. First operand has 225 places, 240 transitions, 496 flow. Second operand 2 states and 434 transitions. [2024-11-16 23:40:19,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 220 transitions, 508 flow [2024-11-16 23:40:19,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 220 transitions, 508 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:19,609 INFO L231 Difference]: Finished difference. Result has 224 places, 220 transitions, 456 flow [2024-11-16 23:40:19,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=456, PETRI_PLACES=224, PETRI_TRANSITIONS=220} [2024-11-16 23:40:19,611 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, -1 predicate places. [2024-11-16 23:40:19,612 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 220 transitions, 456 flow [2024-11-16 23:40:19,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 196.0) internal successors, (392), 2 states have internal predecessors, (392), 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 23:40:19,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:19,613 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] [2024-11-16 23:40:19,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:40:19,613 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:40:19,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:19,614 INFO L85 PathProgramCache]: Analyzing trace with hash 745065790, now seen corresponding path program 1 times [2024-11-16 23:40:19,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:19,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901327254] [2024-11-16 23:40:19,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:19,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:19,651 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 23:40:19,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:19,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901327254] [2024-11-16 23:40:19,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901327254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:19,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:19,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:40:19,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024547351] [2024-11-16 23:40:19,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:19,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:19,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:19,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:19,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:19,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 240 [2024-11-16 23:40:19,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 220 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 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 23:40:19,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:19,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 240 [2024-11-16 23:40:19,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:20,910 INFO L124 PetriNetUnfolderBase]: 1626/8499 cut-off events. [2024-11-16 23:40:20,910 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2024-11-16 23:40:20,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11191 conditions, 8499 events. 1626/8499 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 90093 event pairs, 1608 based on Foata normal form. 1/7709 useless extension candidates. Maximal degree in co-relation 11186. Up to 2629 conditions per place. [2024-11-16 23:40:20,971 INFO L140 encePairwiseOnDemand]: 237/240 looper letters, 39 selfloop transitions, 2 changer transitions 0/229 dead transitions. [2024-11-16 23:40:20,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 229 transitions, 556 flow [2024-11-16 23:40:20,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:20,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:20,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 609 transitions. [2024-11-16 23:40:20,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8458333333333333 [2024-11-16 23:40:20,974 INFO L175 Difference]: Start difference. First operand has 224 places, 220 transitions, 456 flow. Second operand 3 states and 609 transitions. [2024-11-16 23:40:20,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 229 transitions, 556 flow [2024-11-16 23:40:20,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 229 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:20,981 INFO L231 Difference]: Finished difference. Result has 227 places, 221 transitions, 468 flow [2024-11-16 23:40:20,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=227, PETRI_TRANSITIONS=221} [2024-11-16 23:40:20,983 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 2 predicate places. [2024-11-16 23:40:20,983 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 221 transitions, 468 flow [2024-11-16 23:40:20,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 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 23:40:20,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:20,984 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 23:40:20,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:40:20,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:40:20,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:20,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2116130496, now seen corresponding path program 1 times [2024-11-16 23:40:20,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:20,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841382952] [2024-11-16 23:40:20,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:20,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:21,261 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 23:40:21,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:21,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841382952] [2024-11-16 23:40:21,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841382952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:21,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:21,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:40:21,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360043758] [2024-11-16 23:40:21,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:21,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:40:21,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:21,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:40:21,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:21,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 240 [2024-11-16 23:40:21,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 221 transitions, 468 flow. Second operand has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 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 23:40:21,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:21,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 240 [2024-11-16 23:40:21,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:23,169 INFO L124 PetriNetUnfolderBase]: 3186/12847 cut-off events. [2024-11-16 23:40:23,169 INFO L125 PetriNetUnfolderBase]: For 205/232 co-relation queries the response was YES. [2024-11-16 23:40:23,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18167 conditions, 12847 events. 3186/12847 cut-off events. For 205/232 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 141510 event pairs, 1571 based on Foata normal form. 0/11690 useless extension candidates. Maximal degree in co-relation 18160. Up to 3779 conditions per place. [2024-11-16 23:40:23,264 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 102 selfloop transitions, 6 changer transitions 0/284 dead transitions. [2024-11-16 23:40:23,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 284 transitions, 810 flow [2024-11-16 23:40:23,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:40:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:40:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1170 transitions. [2024-11-16 23:40:23,354 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8125 [2024-11-16 23:40:23,354 INFO L175 Difference]: Start difference. First operand has 227 places, 221 transitions, 468 flow. Second operand 6 states and 1170 transitions. [2024-11-16 23:40:23,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 284 transitions, 810 flow [2024-11-16 23:40:23,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 284 transitions, 808 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:40:23,359 INFO L231 Difference]: Finished difference. Result has 230 places, 220 transitions, 476 flow [2024-11-16 23:40:23,364 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=476, PETRI_PLACES=230, PETRI_TRANSITIONS=220} [2024-11-16 23:40:23,365 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 5 predicate places. [2024-11-16 23:40:23,365 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 220 transitions, 476 flow [2024-11-16 23:40:23,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 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 23:40:23,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:23,366 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] [2024-11-16 23:40:23,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:40:23,366 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:40:23,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:23,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1690462740, now seen corresponding path program 1 times [2024-11-16 23:40:23,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:23,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108887773] [2024-11-16 23:40:23,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:23,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:23,411 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 23:40:23,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:23,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108887773] [2024-11-16 23:40:23,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108887773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:23,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:23,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:23,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313796581] [2024-11-16 23:40:23,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:23,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:23,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:23,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:23,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:23,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 240 [2024-11-16 23:40:23,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 220 transitions, 476 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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 23:40:23,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:23,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 240 [2024-11-16 23:40:23,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:25,128 INFO L124 PetriNetUnfolderBase]: 3293/16177 cut-off events. [2024-11-16 23:40:25,129 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-11-16 23:40:25,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21688 conditions, 16177 events. 3293/16177 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 193285 event pairs, 880 based on Foata normal form. 0/14552 useless extension candidates. Maximal degree in co-relation 21681. Up to 3072 conditions per place. [2024-11-16 23:40:25,231 INFO L140 encePairwiseOnDemand]: 233/240 looper letters, 58 selfloop transitions, 5 changer transitions 0/250 dead transitions. [2024-11-16 23:40:25,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 250 transitions, 673 flow [2024-11-16 23:40:25,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:25,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:25,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 629 transitions. [2024-11-16 23:40:25,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8736111111111111 [2024-11-16 23:40:25,234 INFO L175 Difference]: Start difference. First operand has 230 places, 220 transitions, 476 flow. Second operand 3 states and 629 transitions. [2024-11-16 23:40:25,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 250 transitions, 673 flow [2024-11-16 23:40:25,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 250 transitions, 661 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:40:25,239 INFO L231 Difference]: Finished difference. Result has 229 places, 225 transitions, 508 flow [2024-11-16 23:40:25,240 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=229, PETRI_TRANSITIONS=225} [2024-11-16 23:40:25,241 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 4 predicate places. [2024-11-16 23:40:25,241 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 225 transitions, 508 flow [2024-11-16 23:40:25,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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 23:40:25,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:25,242 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:25,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:40:25,242 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:40:25,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:25,243 INFO L85 PathProgramCache]: Analyzing trace with hash 806251286, now seen corresponding path program 1 times [2024-11-16 23:40:25,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:25,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547580767] [2024-11-16 23:40:25,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:25,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:25,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:25,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:25,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547580767] [2024-11-16 23:40:25,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547580767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:40:25,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355154215] [2024-11-16 23:40:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:25,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:40:25,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:40:25,335 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) [2024-11-16 23:40:25,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 23:40:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:25,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 23:40:25,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:40:25,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:40:25,445 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:40:25,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355154215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:25,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:40:25,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-16 23:40:25,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248654418] [2024-11-16 23:40:25,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:25,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:25,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:25,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:25,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:25,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 240 [2024-11-16 23:40:25,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 225 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 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 23:40:25,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:25,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 240 [2024-11-16 23:40:25,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:27,787 INFO L124 PetriNetUnfolderBase]: 4920/21508 cut-off events. [2024-11-16 23:40:27,787 INFO L125 PetriNetUnfolderBase]: For 1503/1524 co-relation queries the response was YES. [2024-11-16 23:40:27,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30905 conditions, 21508 events. 4920/21508 cut-off events. For 1503/1524 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 265520 event pairs, 3516 based on Foata normal form. 16/19345 useless extension candidates. Maximal degree in co-relation 30897. Up to 6750 conditions per place. [2024-11-16 23:40:27,964 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 52 selfloop transitions, 8 changer transitions 0/247 dead transitions. [2024-11-16 23:40:27,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 247 transitions, 684 flow [2024-11-16 23:40:27,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:27,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:27,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 614 transitions. [2024-11-16 23:40:27,967 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8527777777777777 [2024-11-16 23:40:27,967 INFO L175 Difference]: Start difference. First operand has 229 places, 225 transitions, 508 flow. Second operand 3 states and 614 transitions. [2024-11-16 23:40:27,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 247 transitions, 684 flow [2024-11-16 23:40:27,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 247 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:27,977 INFO L231 Difference]: Finished difference. Result has 231 places, 231 transitions, 564 flow [2024-11-16 23:40:27,978 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=231, PETRI_TRANSITIONS=231} [2024-11-16 23:40:27,979 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 6 predicate places. [2024-11-16 23:40:27,979 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 231 transitions, 564 flow [2024-11-16 23:40:27,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 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 23:40:27,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:27,980 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:27,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 23:40:28,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-16 23:40:28,180 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:40:28,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:28,181 INFO L85 PathProgramCache]: Analyzing trace with hash -936957190, now seen corresponding path program 1 times [2024-11-16 23:40:28,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:28,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406347597] [2024-11-16 23:40:28,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:28,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:28,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:28,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406347597] [2024-11-16 23:40:28,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406347597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:40:28,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654203166] [2024-11-16 23:40:28,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:28,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:40:28,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:40:28,269 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) [2024-11-16 23:40:28,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 23:40:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:28,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 23:40:28,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:40:28,425 INFO L378 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 7 [2024-11-16 23:40:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:40:28,445 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:40:28,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654203166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:28,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:40:28,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-16 23:40:28,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61906990] [2024-11-16 23:40:28,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:28,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:28,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:28,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:28,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:28,457 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 240 [2024-11-16 23:40:28,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 231 transitions, 564 flow. Second operand has 3 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 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 23:40:28,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:28,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 240 [2024-11-16 23:40:28,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:29,880 INFO L124 PetriNetUnfolderBase]: 2240/13877 cut-off events. [2024-11-16 23:40:29,880 INFO L125 PetriNetUnfolderBase]: For 579/610 co-relation queries the response was YES. [2024-11-16 23:40:29,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18614 conditions, 13877 events. 2240/13877 cut-off events. For 579/610 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 169990 event pairs, 1273 based on Foata normal form. 50/12868 useless extension candidates. Maximal degree in co-relation 18605. Up to 3243 conditions per place. [2024-11-16 23:40:29,953 INFO L140 encePairwiseOnDemand]: 226/240 looper letters, 35 selfloop transitions, 14 changer transitions 0/251 dead transitions. [2024-11-16 23:40:29,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 251 transitions, 701 flow [2024-11-16 23:40:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 634 transitions. [2024-11-16 23:40:29,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8805555555555555 [2024-11-16 23:40:29,955 INFO L175 Difference]: Start difference. First operand has 231 places, 231 transitions, 564 flow. Second operand 3 states and 634 transitions. [2024-11-16 23:40:29,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 251 transitions, 701 flow [2024-11-16 23:40:29,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 251 transitions, 689 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:29,963 INFO L231 Difference]: Finished difference. Result has 232 places, 240 transitions, 622 flow [2024-11-16 23:40:29,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=232, PETRI_TRANSITIONS=240} [2024-11-16 23:40:29,964 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 7 predicate places. [2024-11-16 23:40:29,964 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 240 transitions, 622 flow [2024-11-16 23:40:29,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 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 23:40:29,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:29,965 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] [2024-11-16 23:40:29,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 23:40:30,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:40:30,169 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:40:30,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:30,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1074227469, now seen corresponding path program 1 times [2024-11-16 23:40:30,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:30,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625080599] [2024-11-16 23:40:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:30,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:30,212 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 23:40:30,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:30,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625080599] [2024-11-16 23:40:30,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625080599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:30,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:30,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:30,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713650738] [2024-11-16 23:40:30,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:30,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:30,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:30,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:30,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:30,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 240 [2024-11-16 23:40:30,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 240 transitions, 622 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 23:40:30,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:30,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 240 [2024-11-16 23:40:30,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:35,380 INFO L124 PetriNetUnfolderBase]: 12979/49989 cut-off events. [2024-11-16 23:40:35,381 INFO L125 PetriNetUnfolderBase]: For 9194/9580 co-relation queries the response was YES. [2024-11-16 23:40:35,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82809 conditions, 49989 events. 12979/49989 cut-off events. For 9194/9580 co-relation queries the response was YES. Maximal size of possible extension queue 1147. Compared 680716 event pairs, 4416 based on Foata normal form. 11/45622 useless extension candidates. Maximal degree in co-relation 82799. Up to 11072 conditions per place. [2024-11-16 23:40:35,687 INFO L140 encePairwiseOnDemand]: 221/240 looper letters, 92 selfloop transitions, 14 changer transitions 0/290 dead transitions. [2024-11-16 23:40:35,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 290 transitions, 1009 flow [2024-11-16 23:40:35,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:35,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 617 transitions. [2024-11-16 23:40:35,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8569444444444444 [2024-11-16 23:40:35,690 INFO L175 Difference]: Start difference. First operand has 232 places, 240 transitions, 622 flow. Second operand 3 states and 617 transitions. [2024-11-16 23:40:35,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 290 transitions, 1009 flow [2024-11-16 23:40:35,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 290 transitions, 981 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:40:35,713 INFO L231 Difference]: Finished difference. Result has 235 places, 254 transitions, 730 flow [2024-11-16 23:40:35,713 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=730, PETRI_PLACES=235, PETRI_TRANSITIONS=254} [2024-11-16 23:40:35,714 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 10 predicate places. [2024-11-16 23:40:35,714 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 254 transitions, 730 flow [2024-11-16 23:40:35,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 23:40:35,715 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:35,715 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, 1] [2024-11-16 23:40:35,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:40:35,715 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:40:35,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:35,715 INFO L85 PathProgramCache]: Analyzing trace with hash 904036544, now seen corresponding path program 1 times [2024-11-16 23:40:35,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:35,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478314119] [2024-11-16 23:40:35,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:35,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:35,758 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 23:40:35,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:35,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478314119] [2024-11-16 23:40:35,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478314119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:35,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:35,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:35,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71472677] [2024-11-16 23:40:35,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:35,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:35,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:35,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:35,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:35,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 240 [2024-11-16 23:40:35,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 254 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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 23:40:35,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:35,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 240 [2024-11-16 23:40:35,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:42,513 INFO L124 PetriNetUnfolderBase]: 14186/60177 cut-off events. [2024-11-16 23:40:42,513 INFO L125 PetriNetUnfolderBase]: For 21024/22277 co-relation queries the response was YES. [2024-11-16 23:40:42,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106953 conditions, 60177 events. 14186/60177 cut-off events. For 21024/22277 co-relation queries the response was YES. Maximal size of possible extension queue 1364. Compared 865838 event pairs, 8139 based on Foata normal form. 98/55692 useless extension candidates. Maximal degree in co-relation 106942. Up to 20101 conditions per place. [2024-11-16 23:40:42,840 INFO L140 encePairwiseOnDemand]: 231/240 looper letters, 82 selfloop transitions, 14 changer transitions 0/289 dead transitions. [2024-11-16 23:40:42,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 289 transitions, 1062 flow [2024-11-16 23:40:42,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:42,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:42,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 605 transitions. [2024-11-16 23:40:42,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8402777777777778 [2024-11-16 23:40:42,843 INFO L175 Difference]: Start difference. First operand has 235 places, 254 transitions, 730 flow. Second operand 3 states and 605 transitions. [2024-11-16 23:40:42,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 289 transitions, 1062 flow [2024-11-16 23:40:42,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 289 transitions, 1024 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:42,875 INFO L231 Difference]: Finished difference. Result has 237 places, 266 transitions, 828 flow [2024-11-16 23:40:42,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=828, PETRI_PLACES=237, PETRI_TRANSITIONS=266} [2024-11-16 23:40:42,876 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 12 predicate places. [2024-11-16 23:40:42,876 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 266 transitions, 828 flow [2024-11-16 23:40:42,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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 23:40:42,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:42,876 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:42,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:40:42,877 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:40:42,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:42,877 INFO L85 PathProgramCache]: Analyzing trace with hash -675713786, now seen corresponding path program 1 times [2024-11-16 23:40:42,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:42,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364875839] [2024-11-16 23:40:42,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:42,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:40:42,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:40:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:40:42,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:40:42,920 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:40:42,920 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-16 23:40:42,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-16 23:40:42,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-16 23:40:42,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-16 23:40:42,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-16 23:40:42,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-16 23:40:42,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-16 23:40:42,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-16 23:40:42,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-16 23:40:42,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-16 23:40:42,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-16 23:40:42,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-16 23:40:42,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-16 23:40:42,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-16 23:40:42,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-16 23:40:42,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-16 23:40:42,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-16 23:40:42,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-16 23:40:42,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-16 23:40:42,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-16 23:40:42,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:40:42,923 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:42,924 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:40:42,924 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:40:42,965 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-16 23:40:42,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 284 places, 304 transitions, 635 flow [2024-11-16 23:40:43,039 INFO L124 PetriNetUnfolderBase]: 54/625 cut-off events. [2024-11-16 23:40:43,040 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-16 23:40:43,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 625 events. 54/625 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2556 event pairs, 1 based on Foata normal form. 0/532 useless extension candidates. Maximal degree in co-relation 421. Up to 16 conditions per place. [2024-11-16 23:40:43,047 INFO L82 GeneralOperation]: Start removeDead. Operand has 284 places, 304 transitions, 635 flow [2024-11-16 23:40:43,052 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 284 places, 304 transitions, 635 flow [2024-11-16 23:40:43,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:40:43,053 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;@385d4d03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:40:43,053 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-16 23:40:43,056 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:40:43,056 INFO L124 PetriNetUnfolderBase]: 1/50 cut-off events. [2024-11-16 23:40:43,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:40:43,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:43,056 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] [2024-11-16 23:40:43,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:40:43,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash -573883057, now seen corresponding path program 1 times [2024-11-16 23:40:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:43,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838034367] [2024-11-16 23:40:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:43,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:43,076 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 23:40:43,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:43,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838034367] [2024-11-16 23:40:43,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838034367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:43,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:43,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:43,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103655304] [2024-11-16 23:40:43,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:43,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:40:43,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:43,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:40:43,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:40:43,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 304 [2024-11-16 23:40:43,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 304 transitions, 635 flow. Second operand has 2 states, 2 states have (on average 244.0) internal successors, (488), 2 states have internal predecessors, (488), 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 23:40:43,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:43,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 304 [2024-11-16 23:40:43,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:49,951 INFO L124 PetriNetUnfolderBase]: 14451/56558 cut-off events. [2024-11-16 23:40:49,951 INFO L125 PetriNetUnfolderBase]: For 1474/1474 co-relation queries the response was YES. [2024-11-16 23:40:50,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77693 conditions, 56558 events. 14451/56558 cut-off events. For 1474/1474 co-relation queries the response was YES. Maximal size of possible extension queue 1021. Compared 769461 event pairs, 14409 based on Foata normal form. 16491/68481 useless extension candidates. Maximal degree in co-relation 68646. Up to 20459 conditions per place. [2024-11-16 23:40:50,310 INFO L140 encePairwiseOnDemand]: 280/304 looper letters, 36 selfloop transitions, 0 changer transitions 0/278 dead transitions. [2024-11-16 23:40:50,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 278 transitions, 655 flow [2024-11-16 23:40:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:40:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:40:50,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 546 transitions. [2024-11-16 23:40:50,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8980263157894737 [2024-11-16 23:40:50,312 INFO L175 Difference]: Start difference. First operand has 284 places, 304 transitions, 635 flow. Second operand 2 states and 546 transitions. [2024-11-16 23:40:50,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 278 transitions, 655 flow [2024-11-16 23:40:50,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 278 transitions, 655 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:50,326 INFO L231 Difference]: Finished difference. Result has 283 places, 278 transitions, 583 flow [2024-11-16 23:40:50,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=583, PETRI_PLACES=283, PETRI_TRANSITIONS=278} [2024-11-16 23:40:50,326 INFO L277 CegarLoopForPetriNet]: 284 programPoint places, -1 predicate places. [2024-11-16 23:40:50,327 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 278 transitions, 583 flow [2024-11-16 23:40:50,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 244.0) internal successors, (488), 2 states have internal predecessors, (488), 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 23:40:50,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:50,327 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] [2024-11-16 23:40:50,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:40:50,327 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:40:50,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:50,328 INFO L85 PathProgramCache]: Analyzing trace with hash -938415298, now seen corresponding path program 1 times [2024-11-16 23:40:50,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:50,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500407816] [2024-11-16 23:40:50,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:50,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:50,355 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 23:40:50,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:50,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500407816] [2024-11-16 23:40:50,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500407816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:50,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:50,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:40:50,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790411674] [2024-11-16 23:40:50,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:50,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:50,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:50,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:50,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:50,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 304 [2024-11-16 23:40:50,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 278 transitions, 583 flow. Second operand has 3 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 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 23:40:50,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:50,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 304 [2024-11-16 23:40:50,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand