./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const.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 3fabc1cc94c3126ff26eb9b915167fe6a6af37b0806df7c41554f022c4d5bcac --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:43:46,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:43:46,355 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:43:46,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:43:46,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:43:46,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:43:46,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:43:46,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:43:46,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:43:46,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:43:46,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:43:46,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:43:46,376 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:43:46,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:43:46,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:43:46,377 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:43:46,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:43:46,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:43:46,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:43:46,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:43:46,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:43:46,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:43:46,382 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:43:46,382 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:43:46,382 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:43:46,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:43:46,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:43:46,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:43:46,384 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:43:46,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:43:46,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:43:46,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:43:46,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:43:46,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:43:46,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:43:46,385 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:43:46,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:43:46,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:43:46,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:43:46,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:43:46,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:43:46,389 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fabc1cc94c3126ff26eb9b915167fe6a6af37b0806df7c41554f022c4d5bcac [2024-11-10 14:43:46,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:43:46,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:43:46,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:43:46,662 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:43:46,662 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:43:46,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const.i [2024-11-10 14:43:48,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:43:48,183 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:43:48,184 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-const.i [2024-11-10 14:43:48,196 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/582c89781/41f0237e2bd84f5f825167eef3df6fcf/FLAG67c1ca953 [2024-11-10 14:43:48,569 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/582c89781/41f0237e2bd84f5f825167eef3df6fcf [2024-11-10 14:43:48,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:43:48,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:43:48,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:43:48,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:43:48,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:43:48,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:48,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb325f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48, skipping insertion in model container [2024-11-10 14:43:48,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:48,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:43:48,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:43:48,907 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:43:48,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:43:48,966 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:43:48,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48 WrapperNode [2024-11-10 14:43:48,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:43:48,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:43:48,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:43:48,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:43:48,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:48,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:48,998 INFO L138 Inliner]: procedures = 158, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2024-11-10 14:43:48,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:43:48,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:43:48,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:43:49,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:43:49,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:49,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:49,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:49,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:49,014 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:49,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:49,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:49,018 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:49,019 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:43:49,020 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:43:49,020 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:43:49,020 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:43:49,021 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (1/1) ... [2024-11-10 14:43:49,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:43:49,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:43:49,049 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) [2024-11-10 14:43:49,051 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 [2024-11-10 14:43:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:43:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:43:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:43:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:43:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:43:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:43:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:43:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-10 14:43:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-10 14:43:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:43:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:43:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:43:49,085 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:43:49,172 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:43:49,174 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:43:49,265 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L691: havoc main_~#tids~0#1.base, main_~#tids~0#1.offset; [2024-11-10 14:43:49,266 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L691-1: SUMMARY for call ULTIMATE.dealloc(main_~#tids~0#1.base, main_~#tids~0#1.offset); srcloc: null [2024-11-10 14:43:49,289 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:43:49,289 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:43:49,313 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:43:49,313 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:43:49,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:49 BoogieIcfgContainer [2024-11-10 14:43:49,314 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:43:49,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:43:49,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:43:49,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:43:49,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:43:48" (1/3) ... [2024-11-10 14:43:49,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fd8a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:49, skipping insertion in model container [2024-11-10 14:43:49,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:48" (2/3) ... [2024-11-10 14:43:49,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fd8a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:49, skipping insertion in model container [2024-11-10 14:43:49,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:49" (3/3) ... [2024-11-10 14:43:49,320 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-const.i [2024-11-10 14:43:49,333 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:43:49,333 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 14:43:49,333 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:43:49,368 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:43:49,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 81 transitions, 169 flow [2024-11-10 14:43:49,430 INFO L124 PetriNetUnfolderBase]: 5/118 cut-off events. [2024-11-10 14:43:49,430 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:43:49,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 118 events. 5/118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 226 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 59. Up to 4 conditions per place. [2024-11-10 14:43:49,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 81 transitions, 169 flow [2024-11-10 14:43:49,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 81 transitions, 169 flow [2024-11-10 14:43:49,446 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:43:49,451 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;@fc65ca0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:43:49,451 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-10 14:43:49,458 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:43:49,458 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-10 14:43:49,458 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:43:49,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:49,459 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] [2024-11-10 14:43:49,459 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:49,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:49,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1845696226, now seen corresponding path program 1 times [2024-11-10 14:43:49,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:49,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818481841] [2024-11-10 14:43:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:49,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:49,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:49,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:49,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818481841] [2024-11-10 14:43:49,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818481841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:49,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:49,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:49,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149864108] [2024-11-10 14:43:49,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:49,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:43:49,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:49,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:43:49,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:43:49,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 81 [2024-11-10 14:43:49,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 169 flow. Second operand has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 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) [2024-11-10 14:43:49,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:49,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 81 [2024-11-10 14:43:49,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:49,715 INFO L124 PetriNetUnfolderBase]: 1/114 cut-off events. [2024-11-10 14:43:49,715 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-10 14:43:49,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 1/114 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 212 event pairs, 0 based on Foata normal form. 6/109 useless extension candidates. Maximal degree in co-relation 4. Up to 5 conditions per place. [2024-11-10 14:43:49,719 INFO L140 encePairwiseOnDemand]: 79/81 looper letters, 4 selfloop transitions, 0 changer transitions 0/79 dead transitions. [2024-11-10 14:43:49,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 173 flow [2024-11-10 14:43:49,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:43:49,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:43:49,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 156 transitions. [2024-11-10 14:43:49,733 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9629629629629629 [2024-11-10 14:43:49,735 INFO L175 Difference]: Start difference. First operand has 81 places, 81 transitions, 169 flow. Second operand 2 states and 156 transitions. [2024-11-10 14:43:49,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 173 flow [2024-11-10 14:43:49,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 79 transitions, 173 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:49,759 INFO L231 Difference]: Finished difference. Result has 82 places, 79 transitions, 165 flow [2024-11-10 14:43:49,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=165, PETRI_PLACES=82, PETRI_TRANSITIONS=79} [2024-11-10 14:43:49,766 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 1 predicate places. [2024-11-10 14:43:49,766 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 79 transitions, 165 flow [2024-11-10 14:43:49,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 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) [2024-11-10 14:43:49,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:49,767 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] [2024-11-10 14:43:49,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:43:49,768 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:49,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash 61612866, now seen corresponding path program 1 times [2024-11-10 14:43:49,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:49,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876583004] [2024-11-10 14:43:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:49,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:49,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:49,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:49,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876583004] [2024-11-10 14:43:49,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876583004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:49,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:49,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:43:49,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707839415] [2024-11-10 14:43:49,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:49,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:43:49,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:49,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:43:49,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:43:49,923 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 81 [2024-11-10 14:43:49,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 79 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 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) [2024-11-10 14:43:49,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:49,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 81 [2024-11-10 14:43:49,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:49,963 INFO L124 PetriNetUnfolderBase]: 8/184 cut-off events. [2024-11-10 14:43:49,963 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:43:49,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 184 events. 8/184 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 548 event pairs, 2 based on Foata normal form. 1/166 useless extension candidates. Maximal degree in co-relation 215. Up to 17 conditions per place. [2024-11-10 14:43:49,965 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 10 selfloop transitions, 4 changer transitions 1/83 dead transitions. [2024-11-10 14:43:49,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 83 transitions, 203 flow [2024-11-10 14:43:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:43:49,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 14:43:49,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 288 transitions. [2024-11-10 14:43:49,967 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-10 14:43:49,967 INFO L175 Difference]: Start difference. First operand has 82 places, 79 transitions, 165 flow. Second operand 4 states and 288 transitions. [2024-11-10 14:43:49,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 83 transitions, 203 flow [2024-11-10 14:43:49,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 83 transitions, 203 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:49,972 INFO L231 Difference]: Finished difference. Result has 86 places, 79 transitions, 177 flow [2024-11-10 14:43:49,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=86, PETRI_TRANSITIONS=79} [2024-11-10 14:43:49,973 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 5 predicate places. [2024-11-10 14:43:49,974 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 79 transitions, 177 flow [2024-11-10 14:43:49,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 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) [2024-11-10 14:43:49,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:49,975 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] [2024-11-10 14:43:49,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:43:49,976 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:49,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:49,976 INFO L85 PathProgramCache]: Analyzing trace with hash 899739946, now seen corresponding path program 1 times [2024-11-10 14:43:49,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:49,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428387075] [2024-11-10 14:43:49,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:49,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:50,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:50,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:50,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428387075] [2024-11-10 14:43:50,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428387075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:50,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:50,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:50,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029138369] [2024-11-10 14:43:50,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:50,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:50,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:50,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:50,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:50,454 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 81 [2024-11-10 14:43:50,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 79 transitions, 177 flow. Second operand has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 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) [2024-11-10 14:43:50,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:50,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 81 [2024-11-10 14:43:50,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:50,579 INFO L124 PetriNetUnfolderBase]: 30/219 cut-off events. [2024-11-10 14:43:50,579 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-10 14:43:50,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 219 events. 30/219 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 872 event pairs, 4 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 331. Up to 62 conditions per place. [2024-11-10 14:43:50,584 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 25 selfloop transitions, 5 changer transitions 0/86 dead transitions. [2024-11-10 14:43:50,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 86 transitions, 251 flow [2024-11-10 14:43:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:50,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 367 transitions. [2024-11-10 14:43:50,587 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7551440329218106 [2024-11-10 14:43:50,587 INFO L175 Difference]: Start difference. First operand has 86 places, 79 transitions, 177 flow. Second operand 6 states and 367 transitions. [2024-11-10 14:43:50,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 86 transitions, 251 flow [2024-11-10 14:43:50,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 86 transitions, 243 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 14:43:50,592 INFO L231 Difference]: Finished difference. Result has 87 places, 78 transitions, 177 flow [2024-11-10 14:43:50,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=177, PETRI_PLACES=87, PETRI_TRANSITIONS=78} [2024-11-10 14:43:50,593 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 6 predicate places. [2024-11-10 14:43:50,593 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 78 transitions, 177 flow [2024-11-10 14:43:50,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 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) [2024-11-10 14:43:50,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:50,593 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] [2024-11-10 14:43:50,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:43:50,594 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:50,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:50,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1197987, now seen corresponding path program 1 times [2024-11-10 14:43:50,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:50,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642408517] [2024-11-10 14:43:50,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:50,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:50,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:50,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642408517] [2024-11-10 14:43:50,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642408517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:50,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:50,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:50,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948876253] [2024-11-10 14:43:50,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:50,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:50,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:50,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:50,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:50,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 81 [2024-11-10 14:43:50,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 78 transitions, 177 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2024-11-10 14:43:50,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:50,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 81 [2024-11-10 14:43:50,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:50,717 INFO L124 PetriNetUnfolderBase]: 6/147 cut-off events. [2024-11-10 14:43:50,718 INFO L125 PetriNetUnfolderBase]: For 4/10 co-relation queries the response was YES. [2024-11-10 14:43:50,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 147 events. 6/147 cut-off events. For 4/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 377 event pairs, 4 based on Foata normal form. 1/134 useless extension candidates. Maximal degree in co-relation 186. Up to 21 conditions per place. [2024-11-10 14:43:50,718 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 9 selfloop transitions, 4 changer transitions 0/81 dead transitions. [2024-11-10 14:43:50,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 81 transitions, 209 flow [2024-11-10 14:43:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:50,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:50,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2024-11-10 14:43:50,719 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094650205761317 [2024-11-10 14:43:50,719 INFO L175 Difference]: Start difference. First operand has 87 places, 78 transitions, 177 flow. Second operand 3 states and 221 transitions. [2024-11-10 14:43:50,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 81 transitions, 209 flow [2024-11-10 14:43:50,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 81 transitions, 199 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:43:50,721 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 197 flow [2024-11-10 14:43:50,721 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2024-11-10 14:43:50,722 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 5 predicate places. [2024-11-10 14:43:50,722 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 197 flow [2024-11-10 14:43:50,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2024-11-10 14:43:50,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:50,722 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] [2024-11-10 14:43:50,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:43:50,723 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:50,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:50,723 INFO L85 PathProgramCache]: Analyzing trace with hash -238874136, now seen corresponding path program 1 times [2024-11-10 14:43:50,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:50,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179122274] [2024-11-10 14:43:50,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:50,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:43:50,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:50,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179122274] [2024-11-10 14:43:50,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179122274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:50,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:50,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:43:50,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616703128] [2024-11-10 14:43:50,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:50,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:43:50,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:50,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:43:50,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:43:50,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 81 [2024-11-10 14:43:50,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 81 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 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) [2024-11-10 14:43:50,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:50,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 81 [2024-11-10 14:43:50,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:50,853 INFO L124 PetriNetUnfolderBase]: 2/119 cut-off events. [2024-11-10 14:43:50,853 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 14:43:50,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 119 events. 2/119 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 163 event pairs, 0 based on Foata normal form. 3/116 useless extension candidates. Maximal degree in co-relation 145. Up to 7 conditions per place. [2024-11-10 14:43:50,854 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 9 selfloop transitions, 3 changer transitions 7/79 dead transitions. [2024-11-10 14:43:50,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 79 transitions, 207 flow [2024-11-10 14:43:50,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:43:50,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 14:43:50,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 286 transitions. [2024-11-10 14:43:50,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8827160493827161 [2024-11-10 14:43:50,855 INFO L175 Difference]: Start difference. First operand has 86 places, 81 transitions, 197 flow. Second operand 4 states and 286 transitions. [2024-11-10 14:43:50,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 79 transitions, 207 flow [2024-11-10 14:43:50,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 79 transitions, 195 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-10 14:43:50,857 INFO L231 Difference]: Finished difference. Result has 85 places, 70 transitions, 161 flow [2024-11-10 14:43:50,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=161, PETRI_PLACES=85, PETRI_TRANSITIONS=70} [2024-11-10 14:43:50,858 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2024-11-10 14:43:50,858 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 70 transitions, 161 flow [2024-11-10 14:43:50,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 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) [2024-11-10 14:43:50,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:50,858 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] [2024-11-10 14:43:50,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:43:50,858 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:50,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:50,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1025702988, now seen corresponding path program 1 times [2024-11-10 14:43:50,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:50,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234319472] [2024-11-10 14:43:50,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:50,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:50,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:43:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:50,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:43:50,903 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:43:50,904 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-10 14:43:50,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-10 14:43:50,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-10 14:43:50,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-10 14:43:50,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-10 14:43:50,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-10 14:43:50,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:43:50,906 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-10 14:43:50,908 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:43:50,908 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 14:43:50,922 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 14:43:50,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 99 transitions, 214 flow [2024-11-10 14:43:50,938 INFO L124 PetriNetUnfolderBase]: 10/210 cut-off events. [2024-11-10 14:43:50,938 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 14:43:50,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 210 events. 10/210 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 481 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 120. Up to 8 conditions per place. [2024-11-10 14:43:50,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 99 transitions, 214 flow [2024-11-10 14:43:50,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 99 transitions, 214 flow [2024-11-10 14:43:50,940 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:43:50,941 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;@fc65ca0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:43:50,941 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-10 14:43:50,943 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:43:50,943 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-10 14:43:50,943 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:43:50,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:50,943 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] [2024-11-10 14:43:50,944 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:50,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:50,944 INFO L85 PathProgramCache]: Analyzing trace with hash 114542910, now seen corresponding path program 1 times [2024-11-10 14:43:50,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:50,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427055709] [2024-11-10 14:43:50,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:50,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:50,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:50,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427055709] [2024-11-10 14:43:50,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427055709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:50,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:50,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:50,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672531739] [2024-11-10 14:43:50,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:50,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:43:50,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:50,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:43:50,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:43:50,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 99 [2024-11-10 14:43:50,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 214 flow. Second operand has 2 states, 2 states have (on average 90.0) internal successors, (180), 2 states have internal predecessors, (180), 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) [2024-11-10 14:43:50,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:50,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 99 [2024-11-10 14:43:50,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:50,993 INFO L124 PetriNetUnfolderBase]: 13/323 cut-off events. [2024-11-10 14:43:50,994 INFO L125 PetriNetUnfolderBase]: For 43/65 co-relation queries the response was YES. [2024-11-10 14:43:50,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 323 events. 13/323 cut-off events. For 43/65 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1120 event pairs, 10 based on Foata normal form. 21/309 useless extension candidates. Maximal degree in co-relation 204. Up to 31 conditions per place. [2024-11-10 14:43:50,998 INFO L140 encePairwiseOnDemand]: 97/99 looper letters, 8 selfloop transitions, 0 changer transitions 0/97 dead transitions. [2024-11-10 14:43:50,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 97 transitions, 226 flow [2024-11-10 14:43:50,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:43:50,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:43:50,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 188 transitions. [2024-11-10 14:43:50,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9494949494949495 [2024-11-10 14:43:50,999 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 214 flow. Second operand 2 states and 188 transitions. [2024-11-10 14:43:50,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 97 transitions, 226 flow [2024-11-10 14:43:51,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:51,002 INFO L231 Difference]: Finished difference. Result has 101 places, 97 transitions, 210 flow [2024-11-10 14:43:51,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=210, PETRI_PLACES=101, PETRI_TRANSITIONS=97} [2024-11-10 14:43:51,003 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 1 predicate places. [2024-11-10 14:43:51,004 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 97 transitions, 210 flow [2024-11-10 14:43:51,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.0) internal successors, (180), 2 states have internal predecessors, (180), 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) [2024-11-10 14:43:51,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:51,004 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] [2024-11-10 14:43:51,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:43:51,005 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:51,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:51,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1639217214, now seen corresponding path program 1 times [2024-11-10 14:43:51,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:51,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223742936] [2024-11-10 14:43:51,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:51,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:51,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:51,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:51,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223742936] [2024-11-10 14:43:51,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223742936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:51,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:51,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:43:51,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441779861] [2024-11-10 14:43:51,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:51,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:43:51,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:51,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:43:51,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:43:51,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 99 [2024-11-10 14:43:51,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:51,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:51,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 99 [2024-11-10 14:43:51,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:51,150 INFO L124 PetriNetUnfolderBase]: 72/593 cut-off events. [2024-11-10 14:43:51,150 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-10 14:43:51,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 593 events. 72/593 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3430 event pairs, 35 based on Foata normal form. 1/543 useless extension candidates. Maximal degree in co-relation 755. Up to 106 conditions per place. [2024-11-10 14:43:51,154 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 18 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2024-11-10 14:43:51,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 104 transitions, 268 flow [2024-11-10 14:43:51,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:43:51,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 14:43:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 351 transitions. [2024-11-10 14:43:51,156 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8863636363636364 [2024-11-10 14:43:51,156 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 210 flow. Second operand 4 states and 351 transitions. [2024-11-10 14:43:51,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 104 transitions, 268 flow [2024-11-10 14:43:51,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 104 transitions, 268 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:51,157 INFO L231 Difference]: Finished difference. Result has 105 places, 98 transitions, 226 flow [2024-11-10 14:43:51,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=105, PETRI_TRANSITIONS=98} [2024-11-10 14:43:51,159 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2024-11-10 14:43:51,159 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 98 transitions, 226 flow [2024-11-10 14:43:51,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:51,160 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:51,160 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] [2024-11-10 14:43:51,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:43:51,160 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:51,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:51,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1510391286, now seen corresponding path program 1 times [2024-11-10 14:43:51,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:51,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410655380] [2024-11-10 14:43:51,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:51,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:51,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:51,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:51,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410655380] [2024-11-10 14:43:51,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410655380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:51,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:51,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:51,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325246830] [2024-11-10 14:43:51,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:51,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:51,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:51,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:51,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:51,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2024-11-10 14:43:51,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 98 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-11-10 14:43:51,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:51,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2024-11-10 14:43:51,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:51,569 INFO L124 PetriNetUnfolderBase]: 236/1021 cut-off events. [2024-11-10 14:43:51,569 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-11-10 14:43:51,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1557 conditions, 1021 events. 236/1021 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7165 event pairs, 34 based on Foata normal form. 0/948 useless extension candidates. Maximal degree in co-relation 1550. Up to 313 conditions per place. [2024-11-10 14:43:51,574 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 38 selfloop transitions, 5 changer transitions 0/113 dead transitions. [2024-11-10 14:43:51,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 113 transitions, 342 flow [2024-11-10 14:43:51,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:51,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:51,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 463 transitions. [2024-11-10 14:43:51,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794612794612794 [2024-11-10 14:43:51,575 INFO L175 Difference]: Start difference. First operand has 105 places, 98 transitions, 226 flow. Second operand 6 states and 463 transitions. [2024-11-10 14:43:51,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 113 transitions, 342 flow [2024-11-10 14:43:51,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 113 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:51,577 INFO L231 Difference]: Finished difference. Result has 107 places, 97 transitions, 228 flow [2024-11-10 14:43:51,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=107, PETRI_TRANSITIONS=97} [2024-11-10 14:43:51,578 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 7 predicate places. [2024-11-10 14:43:51,578 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 97 transitions, 228 flow [2024-11-10 14:43:51,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-11-10 14:43:51,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:51,579 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] [2024-11-10 14:43:51,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:43:51,579 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:51,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:51,579 INFO L85 PathProgramCache]: Analyzing trace with hash 90296589, now seen corresponding path program 1 times [2024-11-10 14:43:51,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:51,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249617927] [2024-11-10 14:43:51,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:51,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:51,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:51,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249617927] [2024-11-10 14:43:51,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249617927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:51,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:51,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:51,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891057134] [2024-11-10 14:43:51,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:51,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:51,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:51,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:51,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:51,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 99 [2024-11-10 14:43:51,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 97 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2024-11-10 14:43:51,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:51,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 99 [2024-11-10 14:43:51,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:51,669 INFO L124 PetriNetUnfolderBase]: 113/694 cut-off events. [2024-11-10 14:43:51,669 INFO L125 PetriNetUnfolderBase]: For 99/173 co-relation queries the response was YES. [2024-11-10 14:43:51,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 694 events. 113/694 cut-off events. For 99/173 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4418 event pairs, 73 based on Foata normal form. 3/614 useless extension candidates. Maximal degree in co-relation 975. Up to 182 conditions per place. [2024-11-10 14:43:51,672 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 18 selfloop transitions, 5 changer transitions 0/105 dead transitions. [2024-11-10 14:43:51,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 105 transitions, 298 flow [2024-11-10 14:43:51,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:51,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:51,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2024-11-10 14:43:51,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2024-11-10 14:43:51,673 INFO L175 Difference]: Start difference. First operand has 107 places, 97 transitions, 228 flow. Second operand 3 states and 270 transitions. [2024-11-10 14:43:51,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 105 transitions, 298 flow [2024-11-10 14:43:51,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 105 transitions, 288 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:43:51,675 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 256 flow [2024-11-10 14:43:51,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2024-11-10 14:43:51,676 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 6 predicate places. [2024-11-10 14:43:51,676 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 256 flow [2024-11-10 14:43:51,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2024-11-10 14:43:51,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:51,676 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] [2024-11-10 14:43:51,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:43:51,676 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:51,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:51,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1298185288, now seen corresponding path program 1 times [2024-11-10 14:43:51,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:51,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631482976] [2024-11-10 14:43:51,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:51,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:43:51,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:51,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631482976] [2024-11-10 14:43:51,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631482976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:51,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:51,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:43:51,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470921317] [2024-11-10 14:43:51,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:51,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:43:51,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:51,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:43:51,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:43:51,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 99 [2024-11-10 14:43:51,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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) [2024-11-10 14:43:51,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:51,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 99 [2024-11-10 14:43:51,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:51,825 INFO L124 PetriNetUnfolderBase]: 63/628 cut-off events. [2024-11-10 14:43:51,825 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-10 14:43:51,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 628 events. 63/628 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3501 event pairs, 24 based on Foata normal form. 15/592 useless extension candidates. Maximal degree in co-relation 851. Up to 72 conditions per place. [2024-11-10 14:43:51,828 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 19 selfloop transitions, 4 changer transitions 3/112 dead transitions. [2024-11-10 14:43:51,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 112 transitions, 336 flow [2024-11-10 14:43:51,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:43:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 14:43:51,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 355 transitions. [2024-11-10 14:43:51,829 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8964646464646465 [2024-11-10 14:43:51,829 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 256 flow. Second operand 4 states and 355 transitions. [2024-11-10 14:43:51,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 112 transitions, 336 flow [2024-11-10 14:43:51,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 112 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:51,831 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 262 flow [2024-11-10 14:43:51,832 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2024-11-10 14:43:51,832 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2024-11-10 14:43:51,832 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 262 flow [2024-11-10 14:43:51,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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) [2024-11-10 14:43:51,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:51,833 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] [2024-11-10 14:43:51,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 14:43:51,833 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:51,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:51,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1616007851, now seen corresponding path program 1 times [2024-11-10 14:43:51,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:51,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178480922] [2024-11-10 14:43:51,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:51,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:51,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:51,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:51,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178480922] [2024-11-10 14:43:51,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178480922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:43:51,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883471410] [2024-11-10 14:43:51,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:51,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:43:51,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:43:51,903 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) [2024-11-10 14:43:51,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:43:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:51,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 14:43:51,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:43:52,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:52,140 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:43:52,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:52,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883471410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:43:52,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:43:52,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-10 14:43:52,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808364185] [2024-11-10 14:43:52,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:43:52,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:43:52,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:52,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:43:52,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:43:52,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 99 [2024-11-10 14:43:52,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 262 flow. Second operand has 13 states, 13 states have (on average 80.92307692307692) internal successors, (1052), 13 states have internal predecessors, (1052), 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) [2024-11-10 14:43:52,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:52,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 99 [2024-11-10 14:43:52,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:52,410 INFO L124 PetriNetUnfolderBase]: 81/455 cut-off events. [2024-11-10 14:43:52,410 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-10 14:43:52,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 455 events. 81/455 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2356 event pairs, 1 based on Foata normal form. 15/448 useless extension candidates. Maximal degree in co-relation 654. Up to 56 conditions per place. [2024-11-10 14:43:52,413 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 28 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2024-11-10 14:43:52,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 93 transitions, 292 flow [2024-11-10 14:43:52,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 14:43:52,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 14:43:52,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-10 14:43:52,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8363636363636363 [2024-11-10 14:43:52,415 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 262 flow. Second operand 10 states and 828 transitions. [2024-11-10 14:43:52,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 93 transitions, 292 flow [2024-11-10 14:43:52,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 93 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:43:52,417 INFO L231 Difference]: Finished difference. Result has 88 places, 73 transitions, 195 flow [2024-11-10 14:43:52,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=195, PETRI_PLACES=88, PETRI_TRANSITIONS=73} [2024-11-10 14:43:52,417 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -12 predicate places. [2024-11-10 14:43:52,417 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 73 transitions, 195 flow [2024-11-10 14:43:52,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 80.92307692307692) internal successors, (1052), 13 states have internal predecessors, (1052), 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) [2024-11-10 14:43:52,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:52,418 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] [2024-11-10 14:43:52,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 14:43:52,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-10 14:43:52,620 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:52,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:52,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1041937714, now seen corresponding path program 1 times [2024-11-10 14:43:52,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:52,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050927890] [2024-11-10 14:43:52,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:52,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:52,647 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:43:52,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:52,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050927890] [2024-11-10 14:43:52,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050927890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:52,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:52,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:52,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117497019] [2024-11-10 14:43:52,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:52,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:52,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:52,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:52,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:52,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 99 [2024-11-10 14:43:52,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 73 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2024-11-10 14:43:52,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:52,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 99 [2024-11-10 14:43:52,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:52,709 INFO L124 PetriNetUnfolderBase]: 27/232 cut-off events. [2024-11-10 14:43:52,709 INFO L125 PetriNetUnfolderBase]: For 27/31 co-relation queries the response was YES. [2024-11-10 14:43:52,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 232 events. 27/232 cut-off events. For 27/31 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 826 event pairs, 16 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 363. Up to 55 conditions per place. [2024-11-10 14:43:52,711 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 13 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-11-10 14:43:52,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 78 transitions, 243 flow [2024-11-10 14:43:52,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:52,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:52,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-11-10 14:43:52,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-10 14:43:52,712 INFO L175 Difference]: Start difference. First operand has 88 places, 73 transitions, 195 flow. Second operand 3 states and 264 transitions. [2024-11-10 14:43:52,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 78 transitions, 243 flow [2024-11-10 14:43:52,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 78 transitions, 226 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-10 14:43:52,713 INFO L231 Difference]: Finished difference. Result has 86 places, 76 transitions, 214 flow [2024-11-10 14:43:52,713 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=86, PETRI_TRANSITIONS=76} [2024-11-10 14:43:52,713 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -14 predicate places. [2024-11-10 14:43:52,714 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 76 transitions, 214 flow [2024-11-10 14:43:52,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2024-11-10 14:43:52,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:52,714 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, 1, 1] [2024-11-10 14:43:52,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 14:43:52,714 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:52,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:52,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1360432346, now seen corresponding path program 1 times [2024-11-10 14:43:52,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:52,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290311599] [2024-11-10 14:43:52,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:52,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:43:52,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:52,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290311599] [2024-11-10 14:43:52,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290311599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:52,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:52,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:43:52,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028054357] [2024-11-10 14:43:52,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:52,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:52,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:52,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:52,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:52,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 99 [2024-11-10 14:43:52,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 76 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2024-11-10 14:43:52,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:52,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 99 [2024-11-10 14:43:52,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:52,811 INFO L124 PetriNetUnfolderBase]: 3/134 cut-off events. [2024-11-10 14:43:52,811 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-10 14:43:52,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 134 events. 3/134 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 215 event pairs, 2 based on Foata normal form. 2/135 useless extension candidates. Maximal degree in co-relation 188. Up to 10 conditions per place. [2024-11-10 14:43:52,812 INFO L140 encePairwiseOnDemand]: 95/99 looper letters, 4 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2024-11-10 14:43:52,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 69 transitions, 195 flow [2024-11-10 14:43:52,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:52,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:52,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2024-11-10 14:43:52,813 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9225589225589226 [2024-11-10 14:43:52,814 INFO L175 Difference]: Start difference. First operand has 86 places, 76 transitions, 214 flow. Second operand 3 states and 274 transitions. [2024-11-10 14:43:52,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 69 transitions, 195 flow [2024-11-10 14:43:52,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 69 transitions, 175 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-10 14:43:52,815 INFO L231 Difference]: Finished difference. Result has 80 places, 68 transitions, 160 flow [2024-11-10 14:43:52,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=80, PETRI_TRANSITIONS=68} [2024-11-10 14:43:52,816 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -20 predicate places. [2024-11-10 14:43:52,816 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 68 transitions, 160 flow [2024-11-10 14:43:52,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2024-11-10 14:43:52,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:52,817 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:52,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 14:43:52,817 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:52,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:52,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1148720154, now seen corresponding path program 1 times [2024-11-10 14:43:52,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:52,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57613019] [2024-11-10 14:43:52,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:52,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:52,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:43:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:52,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:43:52,859 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:43:52,859 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-10 14:43:52,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-10 14:43:52,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-10 14:43:52,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-10 14:43:52,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-10 14:43:52,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-10 14:43:52,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-10 14:43:52,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 14:43:52,862 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:52,862 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:43:52,862 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 14:43:52,879 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 14:43:52,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 117 transitions, 261 flow [2024-11-10 14:43:52,904 INFO L124 PetriNetUnfolderBase]: 20/357 cut-off events. [2024-11-10 14:43:52,905 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-10 14:43:52,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 357 events. 20/357 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1018 event pairs, 1 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 218. Up to 16 conditions per place. [2024-11-10 14:43:52,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 117 transitions, 261 flow [2024-11-10 14:43:52,908 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 117 transitions, 261 flow [2024-11-10 14:43:52,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:43:52,910 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;@fc65ca0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:43:52,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 14:43:52,912 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:43:52,912 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-10 14:43:52,912 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:43:52,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:52,912 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] [2024-11-10 14:43:52,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:52,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:52,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1473326562, now seen corresponding path program 1 times [2024-11-10 14:43:52,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:52,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764610202] [2024-11-10 14:43:52,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:52,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:52,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:52,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764610202] [2024-11-10 14:43:52,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764610202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:52,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:52,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:52,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104445744] [2024-11-10 14:43:52,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:52,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:43:52,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:52,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:43:52,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:43:52,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 117 [2024-11-10 14:43:52,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 117 transitions, 261 flow. Second operand has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 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) [2024-11-10 14:43:52,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:52,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 117 [2024-11-10 14:43:52,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:53,062 INFO L124 PetriNetUnfolderBase]: 98/1130 cut-off events. [2024-11-10 14:43:53,062 INFO L125 PetriNetUnfolderBase]: For 258/389 co-relation queries the response was YES. [2024-11-10 14:43:53,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 1130 events. 98/1130 cut-off events. For 258/389 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 7347 event pairs, 87 based on Foata normal form. 80/1081 useless extension candidates. Maximal degree in co-relation 844. Up to 172 conditions per place. [2024-11-10 14:43:53,067 INFO L140 encePairwiseOnDemand]: 115/117 looper letters, 12 selfloop transitions, 0 changer transitions 0/115 dead transitions. [2024-11-10 14:43:53,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 115 transitions, 281 flow [2024-11-10 14:43:53,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:43:53,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:43:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 220 transitions. [2024-11-10 14:43:53,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9401709401709402 [2024-11-10 14:43:53,071 INFO L175 Difference]: Start difference. First operand has 119 places, 117 transitions, 261 flow. Second operand 2 states and 220 transitions. [2024-11-10 14:43:53,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 115 transitions, 281 flow [2024-11-10 14:43:53,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 115 transitions, 281 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:53,073 INFO L231 Difference]: Finished difference. Result has 120 places, 115 transitions, 257 flow [2024-11-10 14:43:53,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=257, PETRI_PLACES=120, PETRI_TRANSITIONS=115} [2024-11-10 14:43:53,075 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 1 predicate places. [2024-11-10 14:43:53,075 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 115 transitions, 257 flow [2024-11-10 14:43:53,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 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) [2024-11-10 14:43:53,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:53,075 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] [2024-11-10 14:43:53,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 14:43:53,076 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:53,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:53,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1426581314, now seen corresponding path program 1 times [2024-11-10 14:43:53,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:53,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257402700] [2024-11-10 14:43:53,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:53,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:53,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:53,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:53,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257402700] [2024-11-10 14:43:53,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257402700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:53,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:53,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:43:53,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316524576] [2024-11-10 14:43:53,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:53,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:43:53,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:53,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:43:53,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:43:53,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 117 [2024-11-10 14:43:53,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 115 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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) [2024-11-10 14:43:53,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:53,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 117 [2024-11-10 14:43:53,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:53,393 INFO L124 PetriNetUnfolderBase]: 412/2300 cut-off events. [2024-11-10 14:43:53,393 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-10 14:43:53,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3072 conditions, 2300 events. 412/2300 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 18551 event pairs, 175 based on Foata normal form. 1/2091 useless extension candidates. Maximal degree in co-relation 3066. Up to 495 conditions per place. [2024-11-10 14:43:53,404 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 24 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2024-11-10 14:43:53,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 124 transitions, 331 flow [2024-11-10 14:43:53,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:43:53,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 14:43:53,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 413 transitions. [2024-11-10 14:43:53,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8824786324786325 [2024-11-10 14:43:53,406 INFO L175 Difference]: Start difference. First operand has 120 places, 115 transitions, 257 flow. Second operand 4 states and 413 transitions. [2024-11-10 14:43:53,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 124 transitions, 331 flow [2024-11-10 14:43:53,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 124 transitions, 331 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:53,408 INFO L231 Difference]: Finished difference. Result has 124 places, 116 transitions, 273 flow [2024-11-10 14:43:53,409 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=273, PETRI_PLACES=124, PETRI_TRANSITIONS=116} [2024-11-10 14:43:53,409 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 5 predicate places. [2024-11-10 14:43:53,409 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 116 transitions, 273 flow [2024-11-10 14:43:53,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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) [2024-11-10 14:43:53,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:53,410 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] [2024-11-10 14:43:53,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 14:43:53,410 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:53,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:53,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1625567190, now seen corresponding path program 1 times [2024-11-10 14:43:53,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:53,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003727599] [2024-11-10 14:43:53,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:53,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:53,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:53,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:53,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003727599] [2024-11-10 14:43:53,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003727599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:53,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:53,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:53,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435863839] [2024-11-10 14:43:53,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:53,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:53,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:53,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:53,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:53,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 117 [2024-11-10 14:43:53,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 116 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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) [2024-11-10 14:43:53,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:53,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 117 [2024-11-10 14:43:53,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:54,073 INFO L124 PetriNetUnfolderBase]: 1295/4096 cut-off events. [2024-11-10 14:43:54,074 INFO L125 PetriNetUnfolderBase]: For 327/327 co-relation queries the response was YES. [2024-11-10 14:43:54,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6449 conditions, 4096 events. 1295/4096 cut-off events. For 327/327 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 36272 event pairs, 181 based on Foata normal form. 0/3819 useless extension candidates. Maximal degree in co-relation 6441. Up to 1483 conditions per place. [2024-11-10 14:43:54,096 INFO L140 encePairwiseOnDemand]: 111/117 looper letters, 50 selfloop transitions, 5 changer transitions 0/139 dead transitions. [2024-11-10 14:43:54,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 139 transitions, 429 flow [2024-11-10 14:43:54,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:54,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:54,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2024-11-10 14:43:54,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7962962962962963 [2024-11-10 14:43:54,098 INFO L175 Difference]: Start difference. First operand has 124 places, 116 transitions, 273 flow. Second operand 6 states and 559 transitions. [2024-11-10 14:43:54,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 139 transitions, 429 flow [2024-11-10 14:43:54,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 139 transitions, 423 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:54,101 INFO L231 Difference]: Finished difference. Result has 126 places, 115 transitions, 275 flow [2024-11-10 14:43:54,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=126, PETRI_TRANSITIONS=115} [2024-11-10 14:43:54,101 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 7 predicate places. [2024-11-10 14:43:54,102 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 115 transitions, 275 flow [2024-11-10 14:43:54,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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) [2024-11-10 14:43:54,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:54,102 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] [2024-11-10 14:43:54,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 14:43:54,102 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:54,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:54,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1888023133, now seen corresponding path program 1 times [2024-11-10 14:43:54,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:54,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64769604] [2024-11-10 14:43:54,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:54,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:54,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:54,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:54,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64769604] [2024-11-10 14:43:54,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64769604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:54,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:54,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:54,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501925228] [2024-11-10 14:43:54,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:54,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:54,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:54,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:54,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:54,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2024-11-10 14:43:54,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 115 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2024-11-10 14:43:54,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:54,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2024-11-10 14:43:54,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:54,483 INFO L124 PetriNetUnfolderBase]: 1023/4232 cut-off events. [2024-11-10 14:43:54,484 INFO L125 PetriNetUnfolderBase]: For 785/1245 co-relation queries the response was YES. [2024-11-10 14:43:54,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6205 conditions, 4232 events. 1023/4232 cut-off events. For 785/1245 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 40788 event pairs, 572 based on Foata normal form. 9/3691 useless extension candidates. Maximal degree in co-relation 6197. Up to 1329 conditions per place. [2024-11-10 14:43:54,503 INFO L140 encePairwiseOnDemand]: 110/117 looper letters, 27 selfloop transitions, 6 changer transitions 0/128 dead transitions. [2024-11-10 14:43:54,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 128 transitions, 385 flow [2024-11-10 14:43:54,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:54,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:54,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 319 transitions. [2024-11-10 14:43:54,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9088319088319088 [2024-11-10 14:43:54,505 INFO L175 Difference]: Start difference. First operand has 126 places, 115 transitions, 275 flow. Second operand 3 states and 319 transitions. [2024-11-10 14:43:54,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 128 transitions, 385 flow [2024-11-10 14:43:54,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 128 transitions, 375 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:43:54,507 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 311 flow [2024-11-10 14:43:54,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2024-11-10 14:43:54,508 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 6 predicate places. [2024-11-10 14:43:54,508 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 311 flow [2024-11-10 14:43:54,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2024-11-10 14:43:54,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:54,508 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] [2024-11-10 14:43:54,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 14:43:54,508 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:54,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:54,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1668252872, now seen corresponding path program 1 times [2024-11-10 14:43:54,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:54,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707227232] [2024-11-10 14:43:54,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:54,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:54,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:43:54,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:54,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707227232] [2024-11-10 14:43:54,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707227232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:54,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:54,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:43:54,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231857651] [2024-11-10 14:43:54,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:54,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:43:54,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:54,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:43:54,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:43:54,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 117 [2024-11-10 14:43:54,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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) [2024-11-10 14:43:54,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:54,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 117 [2024-11-10 14:43:54,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:54,978 INFO L124 PetriNetUnfolderBase]: 666/3467 cut-off events. [2024-11-10 14:43:54,978 INFO L125 PetriNetUnfolderBase]: For 434/438 co-relation queries the response was YES. [2024-11-10 14:43:54,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5029 conditions, 3467 events. 666/3467 cut-off events. For 434/438 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 32136 event pairs, 320 based on Foata normal form. 63/3172 useless extension candidates. Maximal degree in co-relation 5020. Up to 536 conditions per place. [2024-11-10 14:43:54,999 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 31 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2024-11-10 14:43:55,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 136 transitions, 422 flow [2024-11-10 14:43:55,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:43:55,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 14:43:55,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 420 transitions. [2024-11-10 14:43:55,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2024-11-10 14:43:55,001 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 311 flow. Second operand 4 states and 420 transitions. [2024-11-10 14:43:55,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 136 transitions, 422 flow [2024-11-10 14:43:55,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 136 transitions, 410 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:55,005 INFO L231 Difference]: Finished difference. Result has 127 places, 121 transitions, 315 flow [2024-11-10 14:43:55,006 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=315, PETRI_PLACES=127, PETRI_TRANSITIONS=121} [2024-11-10 14:43:55,006 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 8 predicate places. [2024-11-10 14:43:55,006 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 121 transitions, 315 flow [2024-11-10 14:43:55,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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) [2024-11-10 14:43:55,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:55,007 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] [2024-11-10 14:43:55,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 14:43:55,007 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:55,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:55,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1703749606, now seen corresponding path program 1 times [2024-11-10 14:43:55,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:55,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224865707] [2024-11-10 14:43:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:55,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:55,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:55,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224865707] [2024-11-10 14:43:55,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224865707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:43:55,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592944751] [2024-11-10 14:43:55,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:55,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:43:55,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:43:55,078 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) [2024-11-10 14:43:55,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:43:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:55,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 14:43:55,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:43:55,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:55,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:43:55,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:55,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592944751] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:43:55,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:43:55,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-10 14:43:55,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790110990] [2024-11-10 14:43:55,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:43:55,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:43:55,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:55,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:43:55,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:43:55,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 117 [2024-11-10 14:43:55,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 121 transitions, 315 flow. Second operand has 13 states, 13 states have (on average 94.92307692307692) internal successors, (1234), 13 states have internal predecessors, (1234), 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) [2024-11-10 14:43:55,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:55,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 117 [2024-11-10 14:43:55,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:55,949 INFO L124 PetriNetUnfolderBase]: 1016/4890 cut-off events. [2024-11-10 14:43:55,950 INFO L125 PetriNetUnfolderBase]: For 652/652 co-relation queries the response was YES. [2024-11-10 14:43:55,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7162 conditions, 4890 events. 1016/4890 cut-off events. For 652/652 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 47221 event pairs, 151 based on Foata normal form. 15/4349 useless extension candidates. Maximal degree in co-relation 7152. Up to 749 conditions per place. [2024-11-10 14:43:55,968 INFO L140 encePairwiseOnDemand]: 109/117 looper letters, 50 selfloop transitions, 11 changer transitions 0/159 dead transitions. [2024-11-10 14:43:55,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 159 transitions, 515 flow [2024-11-10 14:43:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 14:43:55,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 14:43:55,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 993 transitions. [2024-11-10 14:43:55,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8487179487179487 [2024-11-10 14:43:55,970 INFO L175 Difference]: Start difference. First operand has 127 places, 121 transitions, 315 flow. Second operand 10 states and 993 transitions. [2024-11-10 14:43:55,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 159 transitions, 515 flow [2024-11-10 14:43:55,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 159 transitions, 509 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:55,975 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 365 flow [2024-11-10 14:43:55,975 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=365, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2024-11-10 14:43:55,975 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 18 predicate places. [2024-11-10 14:43:55,976 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 365 flow [2024-11-10 14:43:55,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 94.92307692307692) internal successors, (1234), 13 states have internal predecessors, (1234), 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) [2024-11-10 14:43:55,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:55,976 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] [2024-11-10 14:43:55,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 14:43:56,180 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,SelfDestructingSolverStorable20 [2024-11-10 14:43:56,181 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:56,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:56,182 INFO L85 PathProgramCache]: Analyzing trace with hash 391639026, now seen corresponding path program 1 times [2024-11-10 14:43:56,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:56,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176740680] [2024-11-10 14:43:56,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:56,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:56,204 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:43:56,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:56,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176740680] [2024-11-10 14:43:56,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176740680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:56,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:56,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:56,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378660010] [2024-11-10 14:43:56,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:56,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:56,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:56,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:56,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:56,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2024-11-10 14:43:56,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2024-11-10 14:43:56,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:56,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2024-11-10 14:43:56,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:56,631 INFO L124 PetriNetUnfolderBase]: 902/4410 cut-off events. [2024-11-10 14:43:56,632 INFO L125 PetriNetUnfolderBase]: For 1349/1921 co-relation queries the response was YES. [2024-11-10 14:43:56,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7193 conditions, 4410 events. 902/4410 cut-off events. For 1349/1921 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 42888 event pairs, 487 based on Foata normal form. 18/3946 useless extension candidates. Maximal degree in co-relation 7180. Up to 1159 conditions per place. [2024-11-10 14:43:56,653 INFO L140 encePairwiseOnDemand]: 110/117 looper letters, 28 selfloop transitions, 9 changer transitions 0/141 dead transitions. [2024-11-10 14:43:56,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 141 transitions, 490 flow [2024-11-10 14:43:56,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:56,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:56,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2024-11-10 14:43:56,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.905982905982906 [2024-11-10 14:43:56,654 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 365 flow. Second operand 3 states and 318 transitions. [2024-11-10 14:43:56,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 141 transitions, 490 flow [2024-11-10 14:43:56,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 141 transitions, 482 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:56,657 INFO L231 Difference]: Finished difference. Result has 139 places, 134 transitions, 433 flow [2024-11-10 14:43:56,657 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=433, PETRI_PLACES=139, PETRI_TRANSITIONS=134} [2024-11-10 14:43:56,658 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 20 predicate places. [2024-11-10 14:43:56,658 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 134 transitions, 433 flow [2024-11-10 14:43:56,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2024-11-10 14:43:56,658 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:56,658 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, 1, 1] [2024-11-10 14:43:56,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 14:43:56,659 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:56,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:56,659 INFO L85 PathProgramCache]: Analyzing trace with hash 136792198, now seen corresponding path program 1 times [2024-11-10 14:43:56,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:56,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680627371] [2024-11-10 14:43:56,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:56,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:56,701 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:43:56,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:56,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680627371] [2024-11-10 14:43:56,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680627371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:56,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:56,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:43:56,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60491515] [2024-11-10 14:43:56,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:56,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:56,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:56,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:56,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:56,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 117 [2024-11-10 14:43:56,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 134 transitions, 433 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2024-11-10 14:43:56,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:56,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 117 [2024-11-10 14:43:56,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:56,813 INFO L124 PetriNetUnfolderBase]: 100/1215 cut-off events. [2024-11-10 14:43:56,814 INFO L125 PetriNetUnfolderBase]: For 333/363 co-relation queries the response was YES. [2024-11-10 14:43:56,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1873 conditions, 1215 events. 100/1215 cut-off events. For 333/363 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8574 event pairs, 57 based on Foata normal form. 20/1159 useless extension candidates. Maximal degree in co-relation 1859. Up to 106 conditions per place. [2024-11-10 14:43:56,819 INFO L140 encePairwiseOnDemand]: 111/117 looper letters, 12 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2024-11-10 14:43:56,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 133 transitions, 454 flow [2024-11-10 14:43:56,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:56,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:56,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2024-11-10 14:43:56,820 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9316239316239316 [2024-11-10 14:43:56,820 INFO L175 Difference]: Start difference. First operand has 139 places, 134 transitions, 433 flow. Second operand 3 states and 327 transitions. [2024-11-10 14:43:56,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 133 transitions, 454 flow [2024-11-10 14:43:56,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 133 transitions, 442 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:56,823 INFO L231 Difference]: Finished difference. Result has 139 places, 128 transitions, 387 flow [2024-11-10 14:43:56,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=387, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2024-11-10 14:43:56,824 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 20 predicate places. [2024-11-10 14:43:56,824 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 387 flow [2024-11-10 14:43:56,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2024-11-10 14:43:56,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:56,824 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-10 14:43:56,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 14:43:56,825 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:56,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:56,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1538384026, now seen corresponding path program 1 times [2024-11-10 14:43:56,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:56,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879267782] [2024-11-10 14:43:56,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:56,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:56,851 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 14:43:56,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:56,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879267782] [2024-11-10 14:43:56,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879267782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:56,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:56,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:56,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330054431] [2024-11-10 14:43:56,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:56,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:56,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:56,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:56,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:56,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2024-11-10 14:43:56,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2024-11-10 14:43:56,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:56,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2024-11-10 14:43:56,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:57,011 INFO L124 PetriNetUnfolderBase]: 177/1445 cut-off events. [2024-11-10 14:43:57,012 INFO L125 PetriNetUnfolderBase]: For 715/763 co-relation queries the response was YES. [2024-11-10 14:43:57,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2507 conditions, 1445 events. 177/1445 cut-off events. For 715/763 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11170 event pairs, 135 based on Foata normal form. 3/1328 useless extension candidates. Maximal degree in co-relation 2493. Up to 336 conditions per place. [2024-11-10 14:43:57,017 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 23 selfloop transitions, 4 changer transitions 0/133 dead transitions. [2024-11-10 14:43:57,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 133 transitions, 461 flow [2024-11-10 14:43:57,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:57,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:57,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2024-11-10 14:43:57,018 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.886039886039886 [2024-11-10 14:43:57,018 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 387 flow. Second operand 3 states and 311 transitions. [2024-11-10 14:43:57,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 133 transitions, 461 flow [2024-11-10 14:43:57,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 133 transitions, 455 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:43:57,021 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 415 flow [2024-11-10 14:43:57,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2024-11-10 14:43:57,022 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 23 predicate places. [2024-11-10 14:43:57,022 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 415 flow [2024-11-10 14:43:57,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2024-11-10 14:43:57,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:57,022 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:57,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 14:43:57,023 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:57,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:57,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2034695077, now seen corresponding path program 1 times [2024-11-10 14:43:57,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:57,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140694924] [2024-11-10 14:43:57,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:57,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:57,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:43:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:57,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:43:57,059 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:43:57,059 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-10 14:43:57,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-10 14:43:57,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-10 14:43:57,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-10 14:43:57,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-10 14:43:57,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-10 14:43:57,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-10 14:43:57,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-10 14:43:57,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 14:43:57,060 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:57,061 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:43:57,061 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-10 14:43:57,076 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-10 14:43:57,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 135 transitions, 310 flow [2024-11-10 14:43:57,136 INFO L124 PetriNetUnfolderBase]: 42/616 cut-off events. [2024-11-10 14:43:57,136 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-10 14:43:57,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 616 events. 42/616 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2272 event pairs, 6 based on Foata normal form. 0/533 useless extension candidates. Maximal degree in co-relation 377. Up to 32 conditions per place. [2024-11-10 14:43:57,138 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 135 transitions, 310 flow [2024-11-10 14:43:57,140 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 135 transitions, 310 flow [2024-11-10 14:43:57,141 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:43:57,141 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;@fc65ca0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:43:57,141 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-10 14:43:57,143 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:43:57,144 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-10 14:43:57,144 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:43:57,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:57,144 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] [2024-11-10 14:43:57,144 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:43:57,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:57,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1980629950, now seen corresponding path program 1 times [2024-11-10 14:43:57,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:57,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298191905] [2024-11-10 14:43:57,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:57,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:57,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:57,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298191905] [2024-11-10 14:43:57,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298191905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:57,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:57,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:57,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047876117] [2024-11-10 14:43:57,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:57,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:43:57,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:57,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:43:57,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:43:57,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 135 [2024-11-10 14:43:57,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 135 transitions, 310 flow. Second operand has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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) [2024-11-10 14:43:57,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:57,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 135 [2024-11-10 14:43:57,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:57,675 INFO L124 PetriNetUnfolderBase]: 585/4394 cut-off events. [2024-11-10 14:43:57,676 INFO L125 PetriNetUnfolderBase]: For 1225/1772 co-relation queries the response was YES. [2024-11-10 14:43:57,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5714 conditions, 4394 events. 585/4394 cut-off events. For 1225/1772 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 42122 event pairs, 536 based on Foata normal form. 307/4207 useless extension candidates. Maximal degree in co-relation 3653. Up to 877 conditions per place. [2024-11-10 14:43:57,713 INFO L140 encePairwiseOnDemand]: 133/135 looper letters, 16 selfloop transitions, 0 changer transitions 0/133 dead transitions. [2024-11-10 14:43:57,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 133 transitions, 338 flow [2024-11-10 14:43:57,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:43:57,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:43:57,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 252 transitions. [2024-11-10 14:43:57,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2024-11-10 14:43:57,715 INFO L175 Difference]: Start difference. First operand has 138 places, 135 transitions, 310 flow. Second operand 2 states and 252 transitions. [2024-11-10 14:43:57,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 133 transitions, 338 flow [2024-11-10 14:43:57,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 133 transitions, 338 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:57,718 INFO L231 Difference]: Finished difference. Result has 139 places, 133 transitions, 306 flow [2024-11-10 14:43:57,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=306, PETRI_PLACES=139, PETRI_TRANSITIONS=133} [2024-11-10 14:43:57,718 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 1 predicate places. [2024-11-10 14:43:57,718 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 133 transitions, 306 flow [2024-11-10 14:43:57,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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) [2024-11-10 14:43:57,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:57,719 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] [2024-11-10 14:43:57,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-10 14:43:57,719 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:43:57,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:57,719 INFO L85 PathProgramCache]: Analyzing trace with hash 669073858, now seen corresponding path program 1 times [2024-11-10 14:43:57,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:57,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769823875] [2024-11-10 14:43:57,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:57,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:57,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:57,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:57,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769823875] [2024-11-10 14:43:57,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769823875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:57,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:57,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:43:57,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728085520] [2024-11-10 14:43:57,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:57,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:43:57,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:57,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:43:57,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:43:57,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 135 [2024-11-10 14:43:57,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 133 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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) [2024-11-10 14:43:57,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:57,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 135 [2024-11-10 14:43:57,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:58,486 INFO L124 PetriNetUnfolderBase]: 2015/8472 cut-off events. [2024-11-10 14:43:58,486 INFO L125 PetriNetUnfolderBase]: For 1213/1213 co-relation queries the response was YES. [2024-11-10 14:43:58,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11868 conditions, 8472 events. 2015/8472 cut-off events. For 1213/1213 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 86824 event pairs, 996 based on Foata normal form. 1/7690 useless extension candidates. Maximal degree in co-relation 11861. Up to 2117 conditions per place. [2024-11-10 14:43:58,548 INFO L140 encePairwiseOnDemand]: 130/135 looper letters, 30 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2024-11-10 14:43:58,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 144 transitions, 396 flow [2024-11-10 14:43:58,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:43:58,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 14:43:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 475 transitions. [2024-11-10 14:43:58,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2024-11-10 14:43:58,550 INFO L175 Difference]: Start difference. First operand has 139 places, 133 transitions, 306 flow. Second operand 4 states and 475 transitions. [2024-11-10 14:43:58,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 144 transitions, 396 flow [2024-11-10 14:43:58,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 144 transitions, 396 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:58,552 INFO L231 Difference]: Finished difference. Result has 143 places, 134 transitions, 322 flow [2024-11-10 14:43:58,552 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=143, PETRI_TRANSITIONS=134} [2024-11-10 14:43:58,553 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 5 predicate places. [2024-11-10 14:43:58,553 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 134 transitions, 322 flow [2024-11-10 14:43:58,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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) [2024-11-10 14:43:58,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:58,553 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] [2024-11-10 14:43:58,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-10 14:43:58,553 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:43:58,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:58,554 INFO L85 PathProgramCache]: Analyzing trace with hash 554212234, now seen corresponding path program 1 times [2024-11-10 14:43:58,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:58,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364174668] [2024-11-10 14:43:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:58,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:58,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:58,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364174668] [2024-11-10 14:43:58,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364174668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:58,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:58,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:58,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035093049] [2024-11-10 14:43:58,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:58,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:58,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:58,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:58,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:58,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 135 [2024-11-10 14:43:58,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 134 transitions, 322 flow. Second operand has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 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) [2024-11-10 14:43:58,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:58,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 135 [2024-11-10 14:43:58,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:00,443 INFO L124 PetriNetUnfolderBase]: 6236/16222 cut-off events. [2024-11-10 14:44:00,443 INFO L125 PetriNetUnfolderBase]: For 1708/1708 co-relation queries the response was YES. [2024-11-10 14:44:00,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26287 conditions, 16222 events. 6236/16222 cut-off events. For 1708/1708 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 164337 event pairs, 2634 based on Foata normal form. 0/15267 useless extension candidates. Maximal degree in co-relation 26278. Up to 6781 conditions per place. [2024-11-10 14:44:00,528 INFO L140 encePairwiseOnDemand]: 129/135 looper letters, 62 selfloop transitions, 5 changer transitions 0/165 dead transitions. [2024-11-10 14:44:00,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 165 transitions, 518 flow [2024-11-10 14:44:00,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:44:00,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:44:00,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 655 transitions. [2024-11-10 14:44:00,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.808641975308642 [2024-11-10 14:44:00,530 INFO L175 Difference]: Start difference. First operand has 143 places, 134 transitions, 322 flow. Second operand 6 states and 655 transitions. [2024-11-10 14:44:00,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 165 transitions, 518 flow [2024-11-10 14:44:00,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 165 transitions, 512 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:00,541 INFO L231 Difference]: Finished difference. Result has 145 places, 133 transitions, 324 flow [2024-11-10 14:44:00,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=145, PETRI_TRANSITIONS=133} [2024-11-10 14:44:00,541 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 7 predicate places. [2024-11-10 14:44:00,541 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 133 transitions, 324 flow [2024-11-10 14:44:00,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 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) [2024-11-10 14:44:00,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:00,542 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] [2024-11-10 14:44:00,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-10 14:44:00,542 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:00,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:00,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1621050365, now seen corresponding path program 1 times [2024-11-10 14:44:00,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:00,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753802298] [2024-11-10 14:44:00,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:00,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:00,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:00,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:00,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753802298] [2024-11-10 14:44:00,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753802298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:00,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:00,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:00,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911475114] [2024-11-10 14:44:00,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:00,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:00,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:00,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:00,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:00,574 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 135 [2024-11-10 14:44:00,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 133 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-10 14:44:00,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:00,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 135 [2024-11-10 14:44:00,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:03,154 INFO L124 PetriNetUnfolderBase]: 7160/22997 cut-off events. [2024-11-10 14:44:03,154 INFO L125 PetriNetUnfolderBase]: For 5024/6687 co-relation queries the response was YES. [2024-11-10 14:44:03,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34987 conditions, 22997 events. 7160/22997 cut-off events. For 5024/6687 co-relation queries the response was YES. Maximal size of possible extension queue 910. Compared 277517 event pairs, 5035 based on Foata normal form. 10/20474 useless extension candidates. Maximal degree in co-relation 34978. Up to 8447 conditions per place. [2024-11-10 14:44:03,293 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 36 selfloop transitions, 7 changer transitions 0/151 dead transitions. [2024-11-10 14:44:03,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 151 transitions, 476 flow [2024-11-10 14:44:03,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:03,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:03,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2024-11-10 14:44:03,294 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908641975308642 [2024-11-10 14:44:03,294 INFO L175 Difference]: Start difference. First operand has 145 places, 133 transitions, 324 flow. Second operand 3 states and 368 transitions. [2024-11-10 14:44:03,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 151 transitions, 476 flow [2024-11-10 14:44:03,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 151 transitions, 466 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:44:03,299 INFO L231 Difference]: Finished difference. Result has 144 places, 139 transitions, 368 flow [2024-11-10 14:44:03,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=144, PETRI_TRANSITIONS=139} [2024-11-10 14:44:03,299 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 6 predicate places. [2024-11-10 14:44:03,299 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 139 transitions, 368 flow [2024-11-10 14:44:03,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-10 14:44:03,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:03,299 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] [2024-11-10 14:44:03,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-10 14:44:03,300 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:03,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:03,300 INFO L85 PathProgramCache]: Analyzing trace with hash 70505752, now seen corresponding path program 1 times [2024-11-10 14:44:03,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:03,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55464765] [2024-11-10 14:44:03,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:03,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:03,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:44:03,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:03,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55464765] [2024-11-10 14:44:03,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55464765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:03,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:03,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:44:03,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528226214] [2024-11-10 14:44:03,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:03,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:44:03,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:03,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:44:03,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:44:03,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 135 [2024-11-10 14:44:03,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 368 flow. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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) [2024-11-10 14:44:03,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:03,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 135 [2024-11-10 14:44:03,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:05,621 INFO L124 PetriNetUnfolderBase]: 5437/20211 cut-off events. [2024-11-10 14:44:05,621 INFO L125 PetriNetUnfolderBase]: For 2734/2800 co-relation queries the response was YES. [2024-11-10 14:44:05,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30634 conditions, 20211 events. 5437/20211 cut-off events. For 2734/2800 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 246210 event pairs, 2945 based on Foata normal form. 259/18070 useless extension candidates. Maximal degree in co-relation 30624. Up to 3835 conditions per place. [2024-11-10 14:44:05,737 INFO L140 encePairwiseOnDemand]: 130/135 looper letters, 40 selfloop transitions, 4 changer transitions 0/160 dead transitions. [2024-11-10 14:44:05,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 160 transitions, 510 flow [2024-11-10 14:44:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:44:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 14:44:05,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 485 transitions. [2024-11-10 14:44:05,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8981481481481481 [2024-11-10 14:44:05,738 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 368 flow. Second operand 4 states and 485 transitions. [2024-11-10 14:44:05,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 160 transitions, 510 flow [2024-11-10 14:44:05,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 160 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:05,748 INFO L231 Difference]: Finished difference. Result has 146 places, 140 transitions, 370 flow [2024-11-10 14:44:05,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=370, PETRI_PLACES=146, PETRI_TRANSITIONS=140} [2024-11-10 14:44:05,749 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 8 predicate places. [2024-11-10 14:44:05,749 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 140 transitions, 370 flow [2024-11-10 14:44:05,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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) [2024-11-10 14:44:05,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:05,749 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] [2024-11-10 14:44:05,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-10 14:44:05,749 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:05,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash 934474097, now seen corresponding path program 1 times [2024-11-10 14:44:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:05,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255508717] [2024-11-10 14:44:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:05,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:05,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:05,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:05,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255508717] [2024-11-10 14:44:05,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255508717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:44:05,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461606413] [2024-11-10 14:44:05,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:05,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:44:05,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:44:05,801 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) [2024-11-10 14:44:05,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:44:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:05,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 14:44:05,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:44:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:05,943 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:44:05,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:05,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461606413] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:44:05,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:44:05,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-10 14:44:05,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7605760] [2024-11-10 14:44:05,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:44:05,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:44:05,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:05,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:44:05,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:44:06,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 135 [2024-11-10 14:44:06,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 140 transitions, 370 flow. Second operand has 13 states, 13 states have (on average 108.92307692307692) internal successors, (1416), 13 states have internal predecessors, (1416), 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) [2024-11-10 14:44:06,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:06,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 135 [2024-11-10 14:44:06,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:08,926 INFO L124 PetriNetUnfolderBase]: 6741/26788 cut-off events. [2024-11-10 14:44:08,926 INFO L125 PetriNetUnfolderBase]: For 3698/3698 co-relation queries the response was YES. [2024-11-10 14:44:09,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40390 conditions, 26788 events. 6741/26788 cut-off events. For 3698/3698 co-relation queries the response was YES. Maximal size of possible extension queue 793. Compared 343735 event pairs, 1781 based on Foata normal form. 15/23558 useless extension candidates. Maximal degree in co-relation 40379. Up to 4720 conditions per place. [2024-11-10 14:44:09,144 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 58 selfloop transitions, 11 changer transitions 0/182 dead transitions. [2024-11-10 14:44:09,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 182 transitions, 594 flow [2024-11-10 14:44:09,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 14:44:09,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 14:44:09,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1141 transitions. [2024-11-10 14:44:09,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8451851851851852 [2024-11-10 14:44:09,146 INFO L175 Difference]: Start difference. First operand has 146 places, 140 transitions, 370 flow. Second operand 10 states and 1141 transitions. [2024-11-10 14:44:09,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 182 transitions, 594 flow [2024-11-10 14:44:09,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 182 transitions, 588 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:09,170 INFO L231 Difference]: Finished difference. Result has 156 places, 146 transitions, 420 flow [2024-11-10 14:44:09,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=420, PETRI_PLACES=156, PETRI_TRANSITIONS=146} [2024-11-10 14:44:09,171 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 18 predicate places. [2024-11-10 14:44:09,171 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 146 transitions, 420 flow [2024-11-10 14:44:09,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.92307692307692) internal successors, (1416), 13 states have internal predecessors, (1416), 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) [2024-11-10 14:44:09,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:09,171 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] [2024-11-10 14:44:09,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 14:44:09,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:44:09,372 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:09,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:09,372 INFO L85 PathProgramCache]: Analyzing trace with hash -806424702, now seen corresponding path program 1 times [2024-11-10 14:44:09,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:09,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975281077] [2024-11-10 14:44:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:09,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:09,399 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:44:09,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:09,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975281077] [2024-11-10 14:44:09,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975281077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:09,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:09,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:09,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520391808] [2024-11-10 14:44:09,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:09,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:09,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:09,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:09,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:09,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 135 [2024-11-10 14:44:09,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 146 transitions, 420 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:09,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:09,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 135 [2024-11-10 14:44:09,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:12,857 INFO L124 PetriNetUnfolderBase]: 8605/31434 cut-off events. [2024-11-10 14:44:12,857 INFO L125 PetriNetUnfolderBase]: For 11743/15435 co-relation queries the response was YES. [2024-11-10 14:44:12,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52999 conditions, 31434 events. 8605/31434 cut-off events. For 11743/15435 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 415085 event pairs, 4908 based on Foata normal form. 61/28021 useless extension candidates. Maximal degree in co-relation 52985. Up to 9826 conditions per place. [2024-11-10 14:44:13,120 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 38 selfloop transitions, 11 changer transitions 0/166 dead transitions. [2024-11-10 14:44:13,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 166 transitions, 597 flow [2024-11-10 14:44:13,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:13,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2024-11-10 14:44:13,121 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9061728395061729 [2024-11-10 14:44:13,121 INFO L175 Difference]: Start difference. First operand has 156 places, 146 transitions, 420 flow. Second operand 3 states and 367 transitions. [2024-11-10 14:44:13,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 166 transitions, 597 flow [2024-11-10 14:44:13,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 166 transitions, 589 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:13,132 INFO L231 Difference]: Finished difference. Result has 158 places, 155 transitions, 508 flow [2024-11-10 14:44:13,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=158, PETRI_TRANSITIONS=155} [2024-11-10 14:44:13,133 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 20 predicate places. [2024-11-10 14:44:13,133 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 155 transitions, 508 flow [2024-11-10 14:44:13,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:13,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:13,133 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, 1, 1] [2024-11-10 14:44:13,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-10 14:44:13,133 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:13,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:13,134 INFO L85 PathProgramCache]: Analyzing trace with hash -57105546, now seen corresponding path program 1 times [2024-11-10 14:44:13,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:13,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054015631] [2024-11-10 14:44:13,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:13,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:13,201 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:44:13,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:13,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054015631] [2024-11-10 14:44:13,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054015631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:13,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:13,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:44:13,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688045837] [2024-11-10 14:44:13,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:13,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:13,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:13,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:13,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:13,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 135 [2024-11-10 14:44:13,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 155 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:13,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:13,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 135 [2024-11-10 14:44:13,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:13,817 INFO L124 PetriNetUnfolderBase]: 530/5225 cut-off events. [2024-11-10 14:44:13,817 INFO L125 PetriNetUnfolderBase]: For 1528/1705 co-relation queries the response was YES. [2024-11-10 14:44:13,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7869 conditions, 5225 events. 530/5225 cut-off events. For 1528/1705 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 56547 event pairs, 192 based on Foata normal form. 140/4919 useless extension candidates. Maximal degree in co-relation 7854. Up to 422 conditions per place. [2024-11-10 14:44:13,844 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 16 selfloop transitions, 8 changer transitions 0/153 dead transitions. [2024-11-10 14:44:13,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 153 transitions, 535 flow [2024-11-10 14:44:13,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:13,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:13,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2024-11-10 14:44:13,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.928395061728395 [2024-11-10 14:44:13,845 INFO L175 Difference]: Start difference. First operand has 158 places, 155 transitions, 508 flow. Second operand 3 states and 376 transitions. [2024-11-10 14:44:13,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 153 transitions, 535 flow [2024-11-10 14:44:13,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 153 transitions, 523 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:13,851 INFO L231 Difference]: Finished difference. Result has 158 places, 146 transitions, 444 flow [2024-11-10 14:44:13,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=158, PETRI_TRANSITIONS=146} [2024-11-10 14:44:13,852 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 20 predicate places. [2024-11-10 14:44:13,852 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 146 transitions, 444 flow [2024-11-10 14:44:13,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:13,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:13,852 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-10 14:44:13,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-10 14:44:13,852 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:13,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:13,853 INFO L85 PathProgramCache]: Analyzing trace with hash 220467382, now seen corresponding path program 1 times [2024-11-10 14:44:13,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:13,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377757837] [2024-11-10 14:44:13,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:13,875 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 14:44:13,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:13,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377757837] [2024-11-10 14:44:13,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377757837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:13,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:13,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:13,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156562163] [2024-11-10 14:44:13,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:13,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:13,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:13,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:13,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:13,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 135 [2024-11-10 14:44:13,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 146 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2024-11-10 14:44:13,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:13,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 135 [2024-11-10 14:44:13,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:14,595 INFO L124 PetriNetUnfolderBase]: 928/5698 cut-off events. [2024-11-10 14:44:14,595 INFO L125 PetriNetUnfolderBase]: For 3585/3729 co-relation queries the response was YES. [2024-11-10 14:44:14,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10309 conditions, 5698 events. 928/5698 cut-off events. For 3585/3729 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 63491 event pairs, 707 based on Foata normal form. 7/5165 useless extension candidates. Maximal degree in co-relation 10294. Up to 1545 conditions per place. [2024-11-10 14:44:14,630 INFO L140 encePairwiseOnDemand]: 130/135 looper letters, 30 selfloop transitions, 4 changer transitions 0/153 dead transitions. [2024-11-10 14:44:14,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 153 transitions, 548 flow [2024-11-10 14:44:14,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:14,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:14,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2024-11-10 14:44:14,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8814814814814815 [2024-11-10 14:44:14,631 INFO L175 Difference]: Start difference. First operand has 158 places, 146 transitions, 444 flow. Second operand 3 states and 357 transitions. [2024-11-10 14:44:14,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 153 transitions, 548 flow [2024-11-10 14:44:14,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 153 transitions, 540 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:44:14,637 INFO L231 Difference]: Finished difference. Result has 161 places, 149 transitions, 470 flow [2024-11-10 14:44:14,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=161, PETRI_TRANSITIONS=149} [2024-11-10 14:44:14,638 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 23 predicate places. [2024-11-10 14:44:14,638 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 149 transitions, 470 flow [2024-11-10 14:44:14,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2024-11-10 14:44:14,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:14,638 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:14,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-10 14:44:14,639 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:14,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:14,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1920958776, now seen corresponding path program 1 times [2024-11-10 14:44:14,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:14,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900311712] [2024-11-10 14:44:14,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:14,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:14,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:14,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900311712] [2024-11-10 14:44:14,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900311712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:44:14,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664017288] [2024-11-10 14:44:14,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:14,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:44:14,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:44:14,754 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:44:14,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 14:44:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:14,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 14:44:14,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:44:15,015 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:15,015 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:44:15,111 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:15,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664017288] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:44:15,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:44:15,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-10 14:44:15,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123516574] [2024-11-10 14:44:15,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:44:15,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 14:44:15,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:15,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 14:44:15,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-10 14:44:15,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 135 [2024-11-10 14:44:15,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 149 transitions, 470 flow. Second operand has 19 states, 19 states have (on average 109.21052631578948) internal successors, (2075), 19 states have internal predecessors, (2075), 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) [2024-11-10 14:44:15,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:15,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 135 [2024-11-10 14:44:15,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:16,280 INFO L124 PetriNetUnfolderBase]: 1216/8697 cut-off events. [2024-11-10 14:44:16,280 INFO L125 PetriNetUnfolderBase]: For 3659/3887 co-relation queries the response was YES. [2024-11-10 14:44:16,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14327 conditions, 8697 events. 1216/8697 cut-off events. For 3659/3887 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 94164 event pairs, 193 based on Foata normal form. 20/7980 useless extension candidates. Maximal degree in co-relation 14310. Up to 893 conditions per place. [2024-11-10 14:44:16,313 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 84 selfloop transitions, 14 changer transitions 1/215 dead transitions. [2024-11-10 14:44:16,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 215 transitions, 876 flow [2024-11-10 14:44:16,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 14:44:16,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 14:44:16,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1598 transitions. [2024-11-10 14:44:16,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8455026455026455 [2024-11-10 14:44:16,315 INFO L175 Difference]: Start difference. First operand has 161 places, 149 transitions, 470 flow. Second operand 14 states and 1598 transitions. [2024-11-10 14:44:16,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 215 transitions, 876 flow [2024-11-10 14:44:16,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 215 transitions, 864 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:16,322 INFO L231 Difference]: Finished difference. Result has 176 places, 153 transitions, 525 flow [2024-11-10 14:44:16,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=525, PETRI_PLACES=176, PETRI_TRANSITIONS=153} [2024-11-10 14:44:16,322 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 38 predicate places. [2024-11-10 14:44:16,323 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 153 transitions, 525 flow [2024-11-10 14:44:16,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 109.21052631578948) internal successors, (2075), 19 states have internal predecessors, (2075), 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) [2024-11-10 14:44:16,323 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:16,323 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:16,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 14:44:16,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:44:16,528 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:16,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:16,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1049382489, now seen corresponding path program 1 times [2024-11-10 14:44:16,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:16,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981736478] [2024-11-10 14:44:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:16,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-10 14:44:16,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:16,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981736478] [2024-11-10 14:44:16,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981736478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:16,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:16,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:16,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108938690] [2024-11-10 14:44:16,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:16,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:16,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:16,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:16,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:16,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 135 [2024-11-10 14:44:16,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 153 transitions, 525 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2024-11-10 14:44:16,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:16,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 135 [2024-11-10 14:44:16,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:17,109 INFO L124 PetriNetUnfolderBase]: 883/5756 cut-off events. [2024-11-10 14:44:17,110 INFO L125 PetriNetUnfolderBase]: For 4274/4370 co-relation queries the response was YES. [2024-11-10 14:44:17,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10822 conditions, 5756 events. 883/5756 cut-off events. For 4274/4370 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 63218 event pairs, 677 based on Foata normal form. 4/5230 useless extension candidates. Maximal degree in co-relation 10801. Up to 1476 conditions per place. [2024-11-10 14:44:17,147 INFO L140 encePairwiseOnDemand]: 130/135 looper letters, 30 selfloop transitions, 4 changer transitions 0/159 dead transitions. [2024-11-10 14:44:17,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 159 transitions, 620 flow [2024-11-10 14:44:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:17,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:17,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-11-10 14:44:17,149 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8790123456790123 [2024-11-10 14:44:17,149 INFO L175 Difference]: Start difference. First operand has 176 places, 153 transitions, 525 flow. Second operand 3 states and 356 transitions. [2024-11-10 14:44:17,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 159 transitions, 620 flow [2024-11-10 14:44:17,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 159 transitions, 602 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-10 14:44:17,167 INFO L231 Difference]: Finished difference. Result has 173 places, 156 transitions, 543 flow [2024-11-10 14:44:17,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=543, PETRI_PLACES=173, PETRI_TRANSITIONS=156} [2024-11-10 14:44:17,167 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 35 predicate places. [2024-11-10 14:44:17,167 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 156 transitions, 543 flow [2024-11-10 14:44:17,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2024-11-10 14:44:17,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:17,168 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:17,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-10 14:44:17,168 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:17,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:17,168 INFO L85 PathProgramCache]: Analyzing trace with hash 364979727, now seen corresponding path program 1 times [2024-11-10 14:44:17,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:17,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822685731] [2024-11-10 14:44:17,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:17,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 103 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:17,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:17,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822685731] [2024-11-10 14:44:17,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822685731] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:44:17,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772301827] [2024-11-10 14:44:17,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:17,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:44:17,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:44:17,410 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:44:17,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 14:44:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:17,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 14:44:17,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:44:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:17,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:44:17,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772301827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:17,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:44:17,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 21 [2024-11-10 14:44:17,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465928420] [2024-11-10 14:44:17,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:17,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 14:44:17,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:17,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 14:44:17,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:44:18,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 135 [2024-11-10 14:44:18,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 156 transitions, 543 flow. Second operand has 12 states, 12 states have (on average 110.0) internal successors, (1320), 12 states have internal predecessors, (1320), 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) [2024-11-10 14:44:18,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:18,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 135 [2024-11-10 14:44:18,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:19,232 INFO L124 PetriNetUnfolderBase]: 1126/8198 cut-off events. [2024-11-10 14:44:19,232 INFO L125 PetriNetUnfolderBase]: For 5089/5393 co-relation queries the response was YES. [2024-11-10 14:44:19,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14503 conditions, 8198 events. 1126/8198 cut-off events. For 5089/5393 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 88868 event pairs, 161 based on Foata normal form. 48/7528 useless extension candidates. Maximal degree in co-relation 14481. Up to 557 conditions per place. [2024-11-10 14:44:19,303 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 89 selfloop transitions, 16 changer transitions 8/232 dead transitions. [2024-11-10 14:44:19,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 232 transitions, 990 flow [2024-11-10 14:44:19,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 14:44:19,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-10 14:44:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1842 transitions. [2024-11-10 14:44:19,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8527777777777777 [2024-11-10 14:44:19,306 INFO L175 Difference]: Start difference. First operand has 173 places, 156 transitions, 543 flow. Second operand 16 states and 1842 transitions. [2024-11-10 14:44:19,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 232 transitions, 990 flow [2024-11-10 14:44:19,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 232 transitions, 968 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-10 14:44:19,319 INFO L231 Difference]: Finished difference. Result has 181 places, 154 transitions, 538 flow [2024-11-10 14:44:19,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=538, PETRI_PLACES=181, PETRI_TRANSITIONS=154} [2024-11-10 14:44:19,319 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 43 predicate places. [2024-11-10 14:44:19,320 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 154 transitions, 538 flow [2024-11-10 14:44:19,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 110.0) internal successors, (1320), 12 states have internal predecessors, (1320), 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) [2024-11-10 14:44:19,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:19,320 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:19,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 14:44:19,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-10 14:44:19,524 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:19,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:19,525 INFO L85 PathProgramCache]: Analyzing trace with hash 536976053, now seen corresponding path program 1 times [2024-11-10 14:44:19,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:19,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535220181] [2024-11-10 14:44:19,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:19,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:19,852 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-10 14:44:19,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:19,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535220181] [2024-11-10 14:44:19,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535220181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:19,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:19,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:44:19,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651782411] [2024-11-10 14:44:19,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:19,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:44:19,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:19,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:44:19,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:44:19,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 135 [2024-11-10 14:44:19,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 154 transitions, 538 flow. Second operand has 6 states, 6 states have (on average 102.66666666666667) internal successors, (616), 6 states have internal predecessors, (616), 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) [2024-11-10 14:44:19,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:19,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 135 [2024-11-10 14:44:19,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:20,863 INFO L124 PetriNetUnfolderBase]: 2470/9770 cut-off events. [2024-11-10 14:44:20,863 INFO L125 PetriNetUnfolderBase]: For 3949/4177 co-relation queries the response was YES. [2024-11-10 14:44:20,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19173 conditions, 9770 events. 2470/9770 cut-off events. For 3949/4177 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 102124 event pairs, 1086 based on Foata normal form. 0/9051 useless extension candidates. Maximal degree in co-relation 19152. Up to 2061 conditions per place. [2024-11-10 14:44:20,920 INFO L140 encePairwiseOnDemand]: 129/135 looper letters, 59 selfloop transitions, 6 changer transitions 0/185 dead transitions. [2024-11-10 14:44:20,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 185 transitions, 762 flow [2024-11-10 14:44:20,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:44:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:44:20,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 665 transitions. [2024-11-10 14:44:20,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8209876543209876 [2024-11-10 14:44:20,921 INFO L175 Difference]: Start difference. First operand has 181 places, 154 transitions, 538 flow. Second operand 6 states and 665 transitions. [2024-11-10 14:44:20,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 185 transitions, 762 flow [2024-11-10 14:44:20,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 185 transitions, 708 flow, removed 3 selfloop flow, removed 17 redundant places. [2024-11-10 14:44:20,951 INFO L231 Difference]: Finished difference. Result has 168 places, 153 transitions, 494 flow [2024-11-10 14:44:20,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=168, PETRI_TRANSITIONS=153} [2024-11-10 14:44:20,952 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 30 predicate places. [2024-11-10 14:44:20,952 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 153 transitions, 494 flow [2024-11-10 14:44:20,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.66666666666667) internal successors, (616), 6 states have internal predecessors, (616), 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) [2024-11-10 14:44:20,952 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:20,953 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-10 14:44:20,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-10 14:44:20,953 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:20,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:20,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1890980185, now seen corresponding path program 1 times [2024-11-10 14:44:20,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:20,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058325984] [2024-11-10 14:44:20,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:20,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:20,994 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-10 14:44:20,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:20,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058325984] [2024-11-10 14:44:20,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058325984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:20,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:20,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:20,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425823370] [2024-11-10 14:44:20,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:20,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:20,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:20,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:20,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:21,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 135 [2024-11-10 14:44:21,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 153 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2024-11-10 14:44:21,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:21,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 135 [2024-11-10 14:44:21,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:22,032 INFO L124 PetriNetUnfolderBase]: 1353/8980 cut-off events. [2024-11-10 14:44:22,032 INFO L125 PetriNetUnfolderBase]: For 5230/5314 co-relation queries the response was YES. [2024-11-10 14:44:22,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17022 conditions, 8980 events. 1353/8980 cut-off events. For 5230/5314 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 106916 event pairs, 605 based on Foata normal form. 0/8412 useless extension candidates. Maximal degree in co-relation 17003. Up to 1591 conditions per place. [2024-11-10 14:44:22,080 INFO L140 encePairwiseOnDemand]: 128/135 looper letters, 30 selfloop transitions, 9 changer transitions 1/166 dead transitions. [2024-11-10 14:44:22,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 166 transitions, 628 flow [2024-11-10 14:44:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:22,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2024-11-10 14:44:22,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9061728395061729 [2024-11-10 14:44:22,081 INFO L175 Difference]: Start difference. First operand has 168 places, 153 transitions, 494 flow. Second operand 3 states and 367 transitions. [2024-11-10 14:44:22,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 166 transitions, 628 flow [2024-11-10 14:44:22,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 166 transitions, 616 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:44:22,124 INFO L231 Difference]: Finished difference. Result has 167 places, 157 transitions, 558 flow [2024-11-10 14:44:22,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=167, PETRI_TRANSITIONS=157} [2024-11-10 14:44:22,125 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 29 predicate places. [2024-11-10 14:44:22,125 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 157 transitions, 558 flow [2024-11-10 14:44:22,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2024-11-10 14:44:22,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:22,126 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1] [2024-11-10 14:44:22,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-10 14:44:22,126 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:22,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:22,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1931179762, now seen corresponding path program 1 times [2024-11-10 14:44:22,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:22,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069857444] [2024-11-10 14:44:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:22,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:22,248 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-10 14:44:22,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:22,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069857444] [2024-11-10 14:44:22,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069857444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:44:22,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211263650] [2024-11-10 14:44:22,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:22,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:44:22,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:44:22,250 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:44:22,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 14:44:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:22,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 14:44:22,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:44:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-10 14:44:22,542 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:44:22,661 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-10 14:44:22,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211263650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:44:22,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:44:22,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-10 14:44:22,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742440973] [2024-11-10 14:44:22,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:44:22,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:44:22,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:22,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:44:22,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:44:22,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 135 [2024-11-10 14:44:22,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 157 transitions, 558 flow. Second operand has 13 states, 13 states have (on average 110.07692307692308) internal successors, (1431), 13 states have internal predecessors, (1431), 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) [2024-11-10 14:44:22,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:22,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 135 [2024-11-10 14:44:22,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:23,314 INFO L124 PetriNetUnfolderBase]: 1050/4317 cut-off events. [2024-11-10 14:44:23,314 INFO L125 PetriNetUnfolderBase]: For 1942/1970 co-relation queries the response was YES. [2024-11-10 14:44:23,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7900 conditions, 4317 events. 1050/4317 cut-off events. For 1942/1970 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 37048 event pairs, 84 based on Foata normal form. 128/4409 useless extension candidates. Maximal degree in co-relation 7880. Up to 518 conditions per place. [2024-11-10 14:44:23,335 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 88 selfloop transitions, 10 changer transitions 17/237 dead transitions. [2024-11-10 14:44:23,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 237 transitions, 1018 flow [2024-11-10 14:44:23,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 14:44:23,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 14:44:23,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1179 transitions. [2024-11-10 14:44:23,337 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8733333333333333 [2024-11-10 14:44:23,337 INFO L175 Difference]: Start difference. First operand has 167 places, 157 transitions, 558 flow. Second operand 10 states and 1179 transitions. [2024-11-10 14:44:23,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 237 transitions, 1018 flow [2024-11-10 14:44:23,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 237 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:23,344 INFO L231 Difference]: Finished difference. Result has 177 places, 154 transitions, 558 flow [2024-11-10 14:44:23,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=558, PETRI_PLACES=177, PETRI_TRANSITIONS=154} [2024-11-10 14:44:23,345 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 39 predicate places. [2024-11-10 14:44:23,345 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 154 transitions, 558 flow [2024-11-10 14:44:23,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.07692307692308) internal successors, (1431), 13 states have internal predecessors, (1431), 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) [2024-11-10 14:44:23,346 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:23,346 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:23,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 14:44:23,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-10 14:44:23,546 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:23,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:23,547 INFO L85 PathProgramCache]: Analyzing trace with hash 2001414021, now seen corresponding path program 1 times [2024-11-10 14:44:23,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:23,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391121358] [2024-11-10 14:44:23,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:23,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:23,747 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-10 14:44:23,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391121358] [2024-11-10 14:44:23,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391121358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:44:23,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831765785] [2024-11-10 14:44:23,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:23,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:44:23,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:44:23,751 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:44:23,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 14:44:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:23,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 14:44:23,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:44:24,162 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-10 14:44:24,162 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:44:24,360 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-10 14:44:24,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831765785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:44:24,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:44:24,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-10 14:44:24,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903158821] [2024-11-10 14:44:24,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:44:24,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 14:44:24,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:24,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 14:44:24,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-10 14:44:24,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 135 [2024-11-10 14:44:24,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 154 transitions, 558 flow. Second operand has 19 states, 19 states have (on average 109.78947368421052) internal successors, (2086), 19 states have internal predecessors, (2086), 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) [2024-11-10 14:44:24,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:24,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 135 [2024-11-10 14:44:24,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:25,147 INFO L124 PetriNetUnfolderBase]: 1003/3859 cut-off events. [2024-11-10 14:44:25,147 INFO L125 PetriNetUnfolderBase]: For 1928/1928 co-relation queries the response was YES. [2024-11-10 14:44:25,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7753 conditions, 3859 events. 1003/3859 cut-off events. For 1928/1928 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 33201 event pairs, 51 based on Foata normal form. 12/3847 useless extension candidates. Maximal degree in co-relation 7730. Up to 496 conditions per place. [2024-11-10 14:44:25,165 INFO L140 encePairwiseOnDemand]: 129/135 looper letters, 0 selfloop transitions, 0 changer transitions 221/221 dead transitions. [2024-11-10 14:44:25,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 221 transitions, 956 flow [2024-11-10 14:44:25,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 14:44:25,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 14:44:25,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1511 transitions. [2024-11-10 14:44:25,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.860968660968661 [2024-11-10 14:44:25,167 INFO L175 Difference]: Start difference. First operand has 177 places, 154 transitions, 558 flow. Second operand 13 states and 1511 transitions. [2024-11-10 14:44:25,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 221 transitions, 956 flow [2024-11-10 14:44:25,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 221 transitions, 899 flow, removed 16 selfloop flow, removed 14 redundant places. [2024-11-10 14:44:25,174 INFO L231 Difference]: Finished difference. Result has 159 places, 0 transitions, 0 flow [2024-11-10 14:44:25,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=159, PETRI_TRANSITIONS=0} [2024-11-10 14:44:25,174 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 21 predicate places. [2024-11-10 14:44:25,174 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 0 transitions, 0 flow [2024-11-10 14:44:25,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 109.78947368421052) internal successors, (2086), 19 states have internal predecessors, (2086), 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) [2024-11-10 14:44:25,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-11-10 14:44:25,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-10 14:44:25,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-10 14:44:25,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2024-11-10 14:44:25,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-10 14:44:25,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-10 14:44:25,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-10 14:44:25,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-10 14:44:25,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-10 14:44:25,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 14:44:25,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:44:25,376 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:25,380 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2024-11-10 14:44:25,380 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 14:44:25,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:44:25 BasicIcfg [2024-11-10 14:44:25,385 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 14:44:25,386 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 14:44:25,386 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 14:44:25,386 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 14:44:25,386 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:49" (3/4) ... [2024-11-10 14:44:25,388 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 14:44:25,390 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread [2024-11-10 14:44:25,394 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-10 14:44:25,394 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 14:44:25,394 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 14:44:25,463 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 14:44:25,464 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 14:44:25,464 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 14:44:25,464 INFO L158 Benchmark]: Toolchain (without parser) took 36892.74ms. Allocated memory was 138.4MB in the beginning and 12.4GB in the end (delta: 12.2GB). Free memory was 64.9MB in the beginning and 8.5GB in the end (delta: -8.4GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. [2024-11-10 14:44:25,464 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 14:44:25,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.44ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 64.8MB in the beginning and 144.1MB in the end (delta: -79.4MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2024-11-10 14:44:25,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.35ms. Allocated memory is still 186.6MB. Free memory was 144.1MB in the beginning and 141.8MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 14:44:25,465 INFO L158 Benchmark]: Boogie Preprocessor took 20.05ms. Allocated memory is still 186.6MB. Free memory was 141.8MB in the beginning and 139.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 14:44:25,465 INFO L158 Benchmark]: IcfgBuilder took 293.75ms. Allocated memory is still 186.6MB. Free memory was 139.9MB in the beginning and 124.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-10 14:44:25,465 INFO L158 Benchmark]: TraceAbstraction took 36070.16ms. Allocated memory was 186.6MB in the beginning and 12.4GB in the end (delta: 12.2GB). Free memory was 123.2MB in the beginning and 8.5GB in the end (delta: -8.4GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. [2024-11-10 14:44:25,466 INFO L158 Benchmark]: Witness Printer took 78.01ms. Allocated memory is still 12.4GB. Free memory was 8.5GB in the beginning and 8.5GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 14:44:25,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.44ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 64.8MB in the beginning and 144.1MB in the end (delta: -79.4MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.35ms. Allocated memory is still 186.6MB. Free memory was 144.1MB in the beginning and 141.8MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.05ms. Allocated memory is still 186.6MB. Free memory was 141.8MB in the beginning and 139.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 293.75ms. Allocated memory is still 186.6MB. Free memory was 139.9MB in the beginning and 124.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 36070.16ms. Allocated memory was 186.6MB in the beginning and 12.4GB in the end (delta: 12.2GB). Free memory was 123.2MB in the beginning and 8.5GB in the end (delta: -8.4GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. * Witness Printer took 78.01ms. Allocated memory is still 12.4GB. Free memory was 8.5GB in the beginning and 8.5GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 685]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 252 IncrementalHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 25 mSDtfsCounter, 252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 113 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 437 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 312 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 582 IncrementalHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 40 mSDtfsCounter, 582 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=262occurred in iteration=5, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 419 NumberOfCodeBlocks, 419 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 391 ConstructedInterpolants, 0 QuantifiedInterpolants, 948 SizeOfPredicates, 4 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 26/32 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 130 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.2s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 549 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 385 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 854 IncrementalHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 10 mSDtfsCounter, 854 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=433occurred in iteration=7, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 509 NumberOfCodeBlocks, 509 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 1021 SizeOfPredicates, 4 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 68/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 147 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 28.3s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1975 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1662 mSDsluCounter, 419 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 343 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3506 IncrementalHoareTripleChecker+Invalid, 3545 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 76 mSDtfsCounter, 3506 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1092 GetRequests, 956 SyntacticMatches, 12 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=558occurred in iteration=14, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1741 NumberOfCodeBlocks, 1741 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6788 SizeOfPredicates, 34 NumberOfNonLiveVariables, 1443 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 25 InterpolantComputations, 12 PerfectInterpolantSequences, 1347/1718 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 14:44:25,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE