./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/02_inc_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/02_inc_cas.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 ede09850ec25b369afc0cd16258beff942f9fc7c5304532be31fd5925a934e14 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:12:40,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:12:40,409 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:12:40,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:12:40,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:12:40,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:12:40,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:12:40,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:12:40,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:12:40,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:12:40,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:12:40,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:12:40,457 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:12:40,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:12:40,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:12:40,459 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:12:40,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:12:40,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:12:40,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:12:40,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:12:40,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:12:40,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:12:40,463 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:12:40,463 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:12:40,463 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:12:40,464 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:12:40,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:12:40,464 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:12:40,464 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:12:40,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:12:40,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:12:40,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:12:40,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:12:40,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:12:40,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:12:40,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:12:40,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:12:40,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:12:40,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:12:40,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:12:40,466 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:12:40,468 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ede09850ec25b369afc0cd16258beff942f9fc7c5304532be31fd5925a934e14 [2024-11-16 23:12:40,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:12:40,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:12:40,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:12:40,763 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:12:40,764 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:12:40,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/02_inc_cas.i [2024-11-16 23:12:42,124 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:12:42,324 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:12:42,324 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/02_inc_cas.i [2024-11-16 23:12:42,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4f6c9526/49787c3d791646feb926e94636714e62/FLAGdb04ef863 [2024-11-16 23:12:42,682 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4f6c9526/49787c3d791646feb926e94636714e62 [2024-11-16 23:12:42,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:12:42,685 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:12:42,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:12:42,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:12:42,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:12:42,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:42" (1/1) ... [2024-11-16 23:12:42,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22df4600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:42, skipping insertion in model container [2024-11-16 23:12:42,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:42" (1/1) ... [2024-11-16 23:12:42,728 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:12:43,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:12:43,061 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:12:43,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:12:43,144 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:12:43,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43 WrapperNode [2024-11-16 23:12:43,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:12:43,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:12:43,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:12:43,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:12:43,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (1/1) ... [2024-11-16 23:12:43,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (1/1) ... [2024-11-16 23:12:43,199 INFO L138 Inliner]: procedures = 170, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 113 [2024-11-16 23:12:43,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:12:43,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:12:43,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:12:43,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:12:43,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (1/1) ... [2024-11-16 23:12:43,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (1/1) ... [2024-11-16 23:12:43,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (1/1) ... [2024-11-16 23:12:43,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (1/1) ... [2024-11-16 23:12:43,227 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (1/1) ... [2024-11-16 23:12:43,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (1/1) ... [2024-11-16 23:12:43,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (1/1) ... [2024-11-16 23:12:43,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (1/1) ... [2024-11-16 23:12:43,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:12:43,240 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:12:43,240 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:12:43,241 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:12:43,241 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (1/1) ... [2024-11-16 23:12:43,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:12:43,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:12:43,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:12:43,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:12:43,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:12:43,323 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-16 23:12:43,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-16 23:12:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:12:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 23:12:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:12:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:12:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:12:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:12:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 23:12:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:12:43,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:12:43,326 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:12:43,506 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:12:43,509 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:12:43,746 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: havoc ~#casret~0#1.base, ~#casret~0#1.offset; [2024-11-16 23:12:43,746 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-1: SUMMARY for call ULTIMATE.dealloc(~#casret~0#1.base, ~#casret~0#1.offset); srcloc: null [2024-11-16 23:12:43,772 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:12:43,773 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:12:43,922 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:12:43,923 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:12:43,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:12:43 BoogieIcfgContainer [2024-11-16 23:12:43,923 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:12:43,925 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:12:43,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:12:43,929 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:12:43,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:12:42" (1/3) ... [2024-11-16 23:12:43,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bab8fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:12:43, skipping insertion in model container [2024-11-16 23:12:43,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:43" (2/3) ... [2024-11-16 23:12:43,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bab8fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:12:43, skipping insertion in model container [2024-11-16 23:12:43,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:12:43" (3/3) ... [2024-11-16 23:12:43,933 INFO L112 eAbstractionObserver]: Analyzing ICFG 02_inc_cas.i [2024-11-16 23:12:43,949 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:12:43,950 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-16 23:12:43,950 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:12:44,024 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:12:44,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 62 transitions, 128 flow [2024-11-16 23:12:44,111 INFO L124 PetriNetUnfolderBase]: 5/72 cut-off events. [2024-11-16 23:12:44,111 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:44,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 5/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 123 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 48. Up to 4 conditions per place. [2024-11-16 23:12:44,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 62 transitions, 128 flow [2024-11-16 23:12:44,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 62 transitions, 128 flow [2024-11-16 23:12:44,130 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:12:44,137 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;@ccd95e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:12:44,138 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-16 23:12:44,147 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:12:44,148 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-11-16 23:12:44,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:44,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:44,149 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] [2024-11-16 23:12:44,149 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-16 23:12:44,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:44,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1596104356, now seen corresponding path program 1 times [2024-11-16 23:12:44,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:44,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191603139] [2024-11-16 23:12:44,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:44,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:44,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:12:44,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:44,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191603139] [2024-11-16 23:12:44,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191603139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:44,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:44,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:12:44,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330256489] [2024-11-16 23:12:44,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:44,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:12:44,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:44,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:12:44,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:12:44,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 62 [2024-11-16 23:12:44,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 62 transitions, 128 flow. Second operand has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:44,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:44,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 62 [2024-11-16 23:12:44,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:44,657 INFO L124 PetriNetUnfolderBase]: 2/55 cut-off events. [2024-11-16 23:12:44,657 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:12:44,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 55 events. 2/55 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 11/63 useless extension candidates. Maximal degree in co-relation 39. Up to 5 conditions per place. [2024-11-16 23:12:44,659 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 4 selfloop transitions, 0 changer transitions 0/50 dead transitions. [2024-11-16 23:12:44,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 50 transitions, 112 flow [2024-11-16 23:12:44,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:12:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:12:44,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 111 transitions. [2024-11-16 23:12:44,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8951612903225806 [2024-11-16 23:12:44,672 INFO L175 Difference]: Start difference. First operand has 61 places, 62 transitions, 128 flow. Second operand 2 states and 111 transitions. [2024-11-16 23:12:44,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 50 transitions, 112 flow [2024-11-16 23:12:44,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 50 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:44,676 INFO L231 Difference]: Finished difference. Result has 52 places, 50 transitions, 104 flow [2024-11-16 23:12:44,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=104, PETRI_PLACES=52, PETRI_TRANSITIONS=50} [2024-11-16 23:12:44,681 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -9 predicate places. [2024-11-16 23:12:44,682 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 50 transitions, 104 flow [2024-11-16 23:12:44,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:44,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:44,683 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:44,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:12:44,683 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-16 23:12:44,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:44,684 INFO L85 PathProgramCache]: Analyzing trace with hash -753541457, now seen corresponding path program 1 times [2024-11-16 23:12:44,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:44,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721990643] [2024-11-16 23:12:44,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:44,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:44,695 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:12:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:44,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:12:44,731 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:12:44,733 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-16 23:12:44,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-16 23:12:44,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-16 23:12:44,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-16 23:12:44,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-16 23:12:44,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-16 23:12:44,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-16 23:12:44,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-16 23:12:44,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-16 23:12:44,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-16 23:12:44,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-16 23:12:44,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-16 23:12:44,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-16 23:12:44,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-16 23:12:44,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-16 23:12:44,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:12:44,740 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-16 23:12:44,742 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:12:44,743 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:12:44,801 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:12:44,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 99 transitions, 208 flow [2024-11-16 23:12:44,831 INFO L124 PetriNetUnfolderBase]: 9/121 cut-off events. [2024-11-16 23:12:44,832 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:12:44,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 121 events. 9/121 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 318 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 84. Up to 6 conditions per place. [2024-11-16 23:12:44,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 99 transitions, 208 flow [2024-11-16 23:12:44,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 99 transitions, 208 flow [2024-11-16 23:12:44,836 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:12:44,836 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;@ccd95e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:12:44,837 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-16 23:12:44,840 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:12:44,840 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-11-16 23:12:44,840 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:44,841 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:44,841 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] [2024-11-16 23:12:44,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:12:44,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:44,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1449327160, now seen corresponding path program 1 times [2024-11-16 23:12:44,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:44,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769044283] [2024-11-16 23:12:44,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:44,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:44,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:12:44,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:44,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769044283] [2024-11-16 23:12:44,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769044283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:44,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:44,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:12:44,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595378414] [2024-11-16 23:12:44,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:44,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:12:44,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:44,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:12:44,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:12:44,979 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 99 [2024-11-16 23:12:44,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 99 transitions, 208 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) [2024-11-16 23:12:44,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:44,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 99 [2024-11-16 23:12:44,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:45,150 INFO L124 PetriNetUnfolderBase]: 24/208 cut-off events. [2024-11-16 23:12:45,150 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-16 23:12:45,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 208 events. 24/208 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 716 event pairs, 12 based on Foata normal form. 55/243 useless extension candidates. Maximal degree in co-relation 182. Up to 37 conditions per place. [2024-11-16 23:12:45,152 INFO L140 encePairwiseOnDemand]: 83/99 looper letters, 8 selfloop transitions, 0 changer transitions 0/80 dead transitions. [2024-11-16 23:12:45,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 80 transitions, 186 flow [2024-11-16 23:12:45,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:12:45,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:12:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 174 transitions. [2024-11-16 23:12:45,157 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2024-11-16 23:12:45,157 INFO L175 Difference]: Start difference. First operand has 97 places, 99 transitions, 208 flow. Second operand 2 states and 174 transitions. [2024-11-16 23:12:45,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 80 transitions, 186 flow [2024-11-16 23:12:45,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 80 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:45,160 INFO L231 Difference]: Finished difference. Result has 82 places, 80 transitions, 170 flow [2024-11-16 23:12:45,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=170, PETRI_PLACES=82, PETRI_TRANSITIONS=80} [2024-11-16 23:12:45,161 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -15 predicate places. [2024-11-16 23:12:45,161 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 80 transitions, 170 flow [2024-11-16 23:12:45,161 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) [2024-11-16 23:12:45,161 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:45,161 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] [2024-11-16 23:12:45,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:12:45,162 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:12:45,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:45,162 INFO L85 PathProgramCache]: Analyzing trace with hash -779739582, now seen corresponding path program 1 times [2024-11-16 23:12:45,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:45,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961026279] [2024-11-16 23:12:45,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:45,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:45,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:12:45,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:45,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961026279] [2024-11-16 23:12:45,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961026279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:45,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:45,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:12:45,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113376791] [2024-11-16 23:12:45,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:45,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:12:45,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:45,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:12:45,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:12:45,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 99 [2024-11-16 23:12:45,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 80 transitions, 170 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:45,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:45,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 99 [2024-11-16 23:12:45,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:46,091 INFO L124 PetriNetUnfolderBase]: 91/457 cut-off events. [2024-11-16 23:12:46,091 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-11-16 23:12:46,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 457 events. 91/457 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2529 event pairs, 18 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 659. Up to 106 conditions per place. [2024-11-16 23:12:46,100 INFO L140 encePairwiseOnDemand]: 89/99 looper letters, 30 selfloop transitions, 12 changer transitions 0/105 dead transitions. [2024-11-16 23:12:46,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 105 transitions, 324 flow [2024-11-16 23:12:46,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:12:46,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:12:46,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2024-11-16 23:12:46,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7390572390572391 [2024-11-16 23:12:46,105 INFO L175 Difference]: Start difference. First operand has 82 places, 80 transitions, 170 flow. Second operand 6 states and 439 transitions. [2024-11-16 23:12:46,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 105 transitions, 324 flow [2024-11-16 23:12:46,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 105 transitions, 324 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:46,109 INFO L231 Difference]: Finished difference. Result has 92 places, 91 transitions, 258 flow [2024-11-16 23:12:46,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=258, PETRI_PLACES=92, PETRI_TRANSITIONS=91} [2024-11-16 23:12:46,110 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -5 predicate places. [2024-11-16 23:12:46,110 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 91 transitions, 258 flow [2024-11-16 23:12:46,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:46,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:46,112 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:46,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:12:46,113 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:12:46,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:46,114 INFO L85 PathProgramCache]: Analyzing trace with hash -2076381844, now seen corresponding path program 1 times [2024-11-16 23:12:46,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:46,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535428707] [2024-11-16 23:12:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:46,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:46,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:12:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:46,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:12:46,139 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:12:46,140 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-16 23:12:46,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-16 23:12:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-16 23:12:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-16 23:12:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-16 23:12:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-16 23:12:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2024-11-16 23:12:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-16 23:12:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-16 23:12:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-16 23:12:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-16 23:12:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-16 23:12:46,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-16 23:12:46,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-16 23:12:46,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-16 23:12:46,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-16 23:12:46,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-16 23:12:46,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-16 23:12:46,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-16 23:12:46,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-16 23:12:46,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-16 23:12:46,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-16 23:12:46,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:12:46,145 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-16 23:12:46,146 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:12:46,147 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:12:46,217 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:12:46,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 136 transitions, 290 flow [2024-11-16 23:12:46,247 INFO L124 PetriNetUnfolderBase]: 13/170 cut-off events. [2024-11-16 23:12:46,247 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:12:46,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 170 events. 13/170 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 508 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2024-11-16 23:12:46,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 136 transitions, 290 flow [2024-11-16 23:12:46,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 136 transitions, 290 flow [2024-11-16 23:12:46,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:12:46,257 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;@ccd95e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:12:46,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-16 23:12:46,259 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:12:46,263 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-16 23:12:46,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:46,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:46,263 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] [2024-11-16 23:12:46,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:12:46,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:46,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1613604588, now seen corresponding path program 1 times [2024-11-16 23:12:46,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:46,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231485601] [2024-11-16 23:12:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:46,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:12:46,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:46,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231485601] [2024-11-16 23:12:46,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231485601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:46,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:46,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:12:46,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723327093] [2024-11-16 23:12:46,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:46,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:12:46,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:46,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:12:46,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:12:46,343 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 136 [2024-11-16 23:12:46,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 136 transitions, 290 flow. Second operand has 2 states, 2 states have (on average 102.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:46,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:46,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 136 [2024-11-16 23:12:46,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:46,547 INFO L124 PetriNetUnfolderBase]: 174/873 cut-off events. [2024-11-16 23:12:46,547 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-16 23:12:46,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1184 conditions, 873 events. 174/873 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5631 event pairs, 108 based on Foata normal form. 259/1037 useless extension candidates. Maximal degree in co-relation 835. Up to 229 conditions per place. [2024-11-16 23:12:46,556 INFO L140 encePairwiseOnDemand]: 113/136 looper letters, 12 selfloop transitions, 0 changer transitions 0/110 dead transitions. [2024-11-16 23:12:46,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 110 transitions, 262 flow [2024-11-16 23:12:46,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:12:46,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:12:46,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 237 transitions. [2024-11-16 23:12:46,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8713235294117647 [2024-11-16 23:12:46,559 INFO L175 Difference]: Start difference. First operand has 133 places, 136 transitions, 290 flow. Second operand 2 states and 237 transitions. [2024-11-16 23:12:46,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 110 transitions, 262 flow [2024-11-16 23:12:46,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 110 transitions, 260 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:46,561 INFO L231 Difference]: Finished difference. Result has 112 places, 110 transitions, 236 flow [2024-11-16 23:12:46,561 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=236, PETRI_PLACES=112, PETRI_TRANSITIONS=110} [2024-11-16 23:12:46,562 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, -21 predicate places. [2024-11-16 23:12:46,562 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 110 transitions, 236 flow [2024-11-16 23:12:46,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 102.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:46,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:46,562 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] [2024-11-16 23:12:46,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:12:46,563 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:12:46,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:46,563 INFO L85 PathProgramCache]: Analyzing trace with hash 92815910, now seen corresponding path program 1 times [2024-11-16 23:12:46,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:46,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104055919] [2024-11-16 23:12:46,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:46,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:46,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:12:46,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:46,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104055919] [2024-11-16 23:12:46,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104055919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:46,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:46,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:12:46,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106317841] [2024-11-16 23:12:46,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:46,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:12:46,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:46,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:12:46,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:12:46,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 136 [2024-11-16 23:12:46,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 110 transitions, 236 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:46,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:46,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 136 [2024-11-16 23:12:46,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:47,966 INFO L124 PetriNetUnfolderBase]: 805/2773 cut-off events. [2024-11-16 23:12:47,967 INFO L125 PetriNetUnfolderBase]: For 247/247 co-relation queries the response was YES. [2024-11-16 23:12:47,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4147 conditions, 2773 events. 805/2773 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 24407 event pairs, 235 based on Foata normal form. 0/2468 useless extension candidates. Maximal degree in co-relation 4141. Up to 770 conditions per place. [2024-11-16 23:12:47,985 INFO L140 encePairwiseOnDemand]: 125/136 looper letters, 46 selfloop transitions, 16 changer transitions 0/151 dead transitions. [2024-11-16 23:12:47,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 151 transitions, 482 flow [2024-11-16 23:12:47,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:12:47,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:12:47,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 615 transitions. [2024-11-16 23:12:47,987 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7536764705882353 [2024-11-16 23:12:47,987 INFO L175 Difference]: Start difference. First operand has 112 places, 110 transitions, 236 flow. Second operand 6 states and 615 transitions. [2024-11-16 23:12:47,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 151 transitions, 482 flow [2024-11-16 23:12:47,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 151 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:47,990 INFO L231 Difference]: Finished difference. Result has 122 places, 125 transitions, 350 flow [2024-11-16 23:12:47,990 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=122, PETRI_TRANSITIONS=125} [2024-11-16 23:12:47,991 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, -11 predicate places. [2024-11-16 23:12:47,991 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 125 transitions, 350 flow [2024-11-16 23:12:47,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:47,992 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:47,992 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-16 23:12:47,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:12:47,992 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:12:47,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:47,992 INFO L85 PathProgramCache]: Analyzing trace with hash 633889521, now seen corresponding path program 1 times [2024-11-16 23:12:47,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:47,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101343946] [2024-11-16 23:12:47,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:47,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:12:48,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:48,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101343946] [2024-11-16 23:12:48,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101343946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:48,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:48,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:12:48,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424490917] [2024-11-16 23:12:48,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:48,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:12:48,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:48,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:12:48,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:12:48,386 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 136 [2024-11-16 23:12:48,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 125 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:48,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:48,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 136 [2024-11-16 23:12:48,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:49,943 INFO L124 PetriNetUnfolderBase]: 1900/6021 cut-off events. [2024-11-16 23:12:49,944 INFO L125 PetriNetUnfolderBase]: For 1799/1910 co-relation queries the response was YES. [2024-11-16 23:12:49,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10642 conditions, 6021 events. 1900/6021 cut-off events. For 1799/1910 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 60667 event pairs, 409 based on Foata normal form. 0/5433 useless extension candidates. Maximal degree in co-relation 10631. Up to 1775 conditions per place. [2024-11-16 23:12:49,993 INFO L140 encePairwiseOnDemand]: 125/136 looper letters, 51 selfloop transitions, 40 changer transitions 0/186 dead transitions. [2024-11-16 23:12:49,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 186 transitions, 788 flow [2024-11-16 23:12:49,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:12:49,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:12:49,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 611 transitions. [2024-11-16 23:12:49,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7487745098039216 [2024-11-16 23:12:49,995 INFO L175 Difference]: Start difference. First operand has 122 places, 125 transitions, 350 flow. Second operand 6 states and 611 transitions. [2024-11-16 23:12:49,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 186 transitions, 788 flow [2024-11-16 23:12:50,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 186 transitions, 788 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:50,007 INFO L231 Difference]: Finished difference. Result has 132 places, 164 transitions, 740 flow [2024-11-16 23:12:50,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=740, PETRI_PLACES=132, PETRI_TRANSITIONS=164} [2024-11-16 23:12:50,008 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, -1 predicate places. [2024-11-16 23:12:50,008 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 164 transitions, 740 flow [2024-11-16 23:12:50,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:50,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:50,009 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:50,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:12:50,009 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:12:50,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:50,009 INFO L85 PathProgramCache]: Analyzing trace with hash -124868974, now seen corresponding path program 1 times [2024-11-16 23:12:50,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:50,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625200026] [2024-11-16 23:12:50,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:50,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:50,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:12:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:50,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:12:50,024 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:12:50,024 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-16 23:12:50,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-16 23:12:50,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-16 23:12:50,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-16 23:12:50,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-16 23:12:50,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-16 23:12:50,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2024-11-16 23:12:50,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-16 23:12:50,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-11-16 23:12:50,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-16 23:12:50,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-16 23:12:50,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-16 23:12:50,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-16 23:12:50,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-16 23:12:50,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-16 23:12:50,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-16 23:12:50,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-16 23:12:50,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2024-11-16 23:12:50,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2024-11-16 23:12:50,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-16 23:12:50,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-16 23:12:50,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-16 23:12:50,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-16 23:12:50,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-16 23:12:50,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-16 23:12:50,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-16 23:12:50,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-16 23:12:50,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-16 23:12:50,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-16 23:12:50,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:12:50,027 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-16 23:12:50,028 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:12:50,028 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-16 23:12:50,077 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:12:50,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 173 transitions, 374 flow [2024-11-16 23:12:50,096 INFO L124 PetriNetUnfolderBase]: 17/219 cut-off events. [2024-11-16 23:12:50,096 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-16 23:12:50,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 219 events. 17/219 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 691 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 178. Up to 10 conditions per place. [2024-11-16 23:12:50,098 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 173 transitions, 374 flow [2024-11-16 23:12:50,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 173 transitions, 374 flow [2024-11-16 23:12:50,100 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:12:50,101 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;@ccd95e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:12:50,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-16 23:12:50,102 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:12:50,102 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-11-16 23:12:50,102 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:50,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:50,103 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] [2024-11-16 23:12:50,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:12:50,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:50,103 INFO L85 PathProgramCache]: Analyzing trace with hash 30006544, now seen corresponding path program 1 times [2024-11-16 23:12:50,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:50,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197274131] [2024-11-16 23:12:50,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:50,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:50,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:12:50,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:50,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197274131] [2024-11-16 23:12:50,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197274131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:50,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:50,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:12:50,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656504672] [2024-11-16 23:12:50,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:50,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:12:50,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:50,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:12:50,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:12:50,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 173 [2024-11-16 23:12:50,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 173 transitions, 374 flow. Second operand has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:50,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:50,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 173 [2024-11-16 23:12:50,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:50,762 INFO L124 PetriNetUnfolderBase]: 1028/3778 cut-off events. [2024-11-16 23:12:50,762 INFO L125 PetriNetUnfolderBase]: For 755/755 co-relation queries the response was YES. [2024-11-16 23:12:50,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5434 conditions, 3778 events. 1028/3778 cut-off events. For 755/755 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 33471 event pairs, 684 based on Foata normal form. 1195/4569 useless extension candidates. Maximal degree in co-relation 3816. Up to 1253 conditions per place. [2024-11-16 23:12:50,808 INFO L140 encePairwiseOnDemand]: 143/173 looper letters, 16 selfloop transitions, 0 changer transitions 0/140 dead transitions. [2024-11-16 23:12:50,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 140 transitions, 340 flow [2024-11-16 23:12:50,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:12:50,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:12:50,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 300 transitions. [2024-11-16 23:12:50,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8670520231213873 [2024-11-16 23:12:50,810 INFO L175 Difference]: Start difference. First operand has 169 places, 173 transitions, 374 flow. Second operand 2 states and 300 transitions. [2024-11-16 23:12:50,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 140 transitions, 340 flow [2024-11-16 23:12:50,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 140 transitions, 334 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:50,814 INFO L231 Difference]: Finished difference. Result has 142 places, 140 transitions, 302 flow [2024-11-16 23:12:50,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=302, PETRI_PLACES=142, PETRI_TRANSITIONS=140} [2024-11-16 23:12:50,815 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, -27 predicate places. [2024-11-16 23:12:50,815 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 140 transitions, 302 flow [2024-11-16 23:12:50,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:50,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:50,816 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] [2024-11-16 23:12:50,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:12:50,816 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:12:50,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:50,817 INFO L85 PathProgramCache]: Analyzing trace with hash -959476525, now seen corresponding path program 1 times [2024-11-16 23:12:50,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:50,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404268551] [2024-11-16 23:12:50,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:50,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:12:51,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:51,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404268551] [2024-11-16 23:12:51,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404268551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:51,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:51,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:12:51,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813746679] [2024-11-16 23:12:51,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:51,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:12:51,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:51,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:12:51,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:12:51,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 173 [2024-11-16 23:12:51,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 140 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:51,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:51,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 173 [2024-11-16 23:12:51,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:54,187 INFO L124 PetriNetUnfolderBase]: 4956/13710 cut-off events. [2024-11-16 23:12:54,187 INFO L125 PetriNetUnfolderBase]: For 1141/1141 co-relation queries the response was YES. [2024-11-16 23:12:54,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21108 conditions, 13710 events. 4956/13710 cut-off events. For 1141/1141 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 146831 event pairs, 1678 based on Foata normal form. 0/12249 useless extension candidates. Maximal degree in co-relation 21101. Up to 4383 conditions per place. [2024-11-16 23:12:54,300 INFO L140 encePairwiseOnDemand]: 161/173 looper letters, 62 selfloop transitions, 20 changer transitions 0/197 dead transitions. [2024-11-16 23:12:54,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 197 transitions, 640 flow [2024-11-16 23:12:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:12:54,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:12:54,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 791 transitions. [2024-11-16 23:12:54,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7620423892100193 [2024-11-16 23:12:54,303 INFO L175 Difference]: Start difference. First operand has 142 places, 140 transitions, 302 flow. Second operand 6 states and 791 transitions. [2024-11-16 23:12:54,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 197 transitions, 640 flow [2024-11-16 23:12:54,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 197 transitions, 640 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:54,306 INFO L231 Difference]: Finished difference. Result has 152 places, 159 transitions, 442 flow [2024-11-16 23:12:54,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=442, PETRI_PLACES=152, PETRI_TRANSITIONS=159} [2024-11-16 23:12:54,306 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, -17 predicate places. [2024-11-16 23:12:54,306 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 159 transitions, 442 flow [2024-11-16 23:12:54,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:54,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:54,307 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-16 23:12:54,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:12:54,307 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:12:54,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:54,308 INFO L85 PathProgramCache]: Analyzing trace with hash 2135928442, now seen corresponding path program 1 times [2024-11-16 23:12:54,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:54,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233560823] [2024-11-16 23:12:54,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:54,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:12:54,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:54,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233560823] [2024-11-16 23:12:54,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233560823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:54,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:54,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:12:54,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522366732] [2024-11-16 23:12:54,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:54,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:12:54,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:54,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:12:54,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:12:54,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 173 [2024-11-16 23:12:54,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 159 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 119.66666666666667) internal successors, (718), 6 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:12:54,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:54,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 173 [2024-11-16 23:12:54,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:00,782 INFO L124 PetriNetUnfolderBase]: 13772/36347 cut-off events. [2024-11-16 23:13:00,782 INFO L125 PetriNetUnfolderBase]: For 11606/12481 co-relation queries the response was YES. [2024-11-16 23:13:01,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64453 conditions, 36347 events. 13772/36347 cut-off events. For 11606/12481 co-relation queries the response was YES. Maximal size of possible extension queue 1497. Compared 447634 event pairs, 3668 based on Foata normal form. 0/32630 useless extension candidates. Maximal degree in co-relation 64441. Up to 12131 conditions per place. [2024-11-16 23:13:01,388 INFO L140 encePairwiseOnDemand]: 161/173 looper letters, 71 selfloop transitions, 60 changer transitions 0/252 dead transitions. [2024-11-16 23:13:01,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 252 transitions, 1116 flow [2024-11-16 23:13:01,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:13:01,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:13:01,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 787 transitions. [2024-11-16 23:13:01,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7581888246628131 [2024-11-16 23:13:01,392 INFO L175 Difference]: Start difference. First operand has 152 places, 159 transitions, 442 flow. Second operand 6 states and 787 transitions. [2024-11-16 23:13:01,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 252 transitions, 1116 flow [2024-11-16 23:13:01,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 252 transitions, 1116 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:01,409 INFO L231 Difference]: Finished difference. Result has 162 places, 218 transitions, 1034 flow [2024-11-16 23:13:01,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1034, PETRI_PLACES=162, PETRI_TRANSITIONS=218} [2024-11-16 23:13:01,410 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, -7 predicate places. [2024-11-16 23:13:01,410 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 218 transitions, 1034 flow [2024-11-16 23:13:01,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.66666666666667) internal successors, (718), 6 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:01,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:01,412 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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] [2024-11-16 23:13:01,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 23:13:01,413 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:13:01,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:01,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1217935472, now seen corresponding path program 1 times [2024-11-16 23:13:01,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:01,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593077912] [2024-11-16 23:13:01,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:01,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 23:13:01,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:01,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593077912] [2024-11-16 23:13:01,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593077912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:01,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:01,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:13:01,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991019334] [2024-11-16 23:13:01,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:01,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:13:01,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:01,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:13:01,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:13:01,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 173 [2024-11-16 23:13:01,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 218 transitions, 1034 flow. Second operand has 6 states, 6 states have (on average 119.83333333333333) internal successors, (719), 6 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:01,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:01,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 173 [2024-11-16 23:13:01,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:17,914 INFO L124 PetriNetUnfolderBase]: 35550/86918 cut-off events. [2024-11-16 23:13:17,914 INFO L125 PetriNetUnfolderBase]: For 93716/98901 co-relation queries the response was YES. [2024-11-16 23:13:18,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189521 conditions, 86918 events. 35550/86918 cut-off events. For 93716/98901 co-relation queries the response was YES. Maximal size of possible extension queue 3376. Compared 1144647 event pairs, 7335 based on Foata normal form. 0/78852 useless extension candidates. Maximal degree in co-relation 189504. Up to 31405 conditions per place. [2024-11-16 23:13:19,678 INFO L140 encePairwiseOnDemand]: 161/173 looper letters, 120 selfloop transitions, 212 changer transitions 0/459 dead transitions. [2024-11-16 23:13:19,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 459 transitions, 3628 flow [2024-11-16 23:13:19,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:13:19,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:13:19,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 783 transitions. [2024-11-16 23:13:19,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7543352601156069 [2024-11-16 23:13:19,681 INFO L175 Difference]: Start difference. First operand has 162 places, 218 transitions, 1034 flow. Second operand 6 states and 783 transitions. [2024-11-16 23:13:19,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 459 transitions, 3628 flow [2024-11-16 23:13:19,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 459 transitions, 3628 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:19,809 INFO L231 Difference]: Finished difference. Result has 172 places, 429 transitions, 3886 flow [2024-11-16 23:13:19,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3886, PETRI_PLACES=172, PETRI_TRANSITIONS=429} [2024-11-16 23:13:19,810 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, 3 predicate places. [2024-11-16 23:13:19,810 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 429 transitions, 3886 flow [2024-11-16 23:13:19,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.83333333333333) internal successors, (719), 6 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:19,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:19,810 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:13:19,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:13:19,811 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-16 23:13:19,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:19,811 INFO L85 PathProgramCache]: Analyzing trace with hash -120662879, now seen corresponding path program 1 times [2024-11-16 23:13:19,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:19,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945306962] [2024-11-16 23:13:19,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:19,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:19,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:13:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:19,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:13:19,833 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:13:19,833 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2024-11-16 23:13:19,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2024-11-16 23:13:19,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2024-11-16 23:13:19,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2024-11-16 23:13:19,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2024-11-16 23:13:19,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2024-11-16 23:13:19,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2024-11-16 23:13:19,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2024-11-16 23:13:19,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2024-11-16 23:13:19,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2024-11-16 23:13:19,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2024-11-16 23:13:19,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2024-11-16 23:13:19,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2024-11-16 23:13:19,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2024-11-16 23:13:19,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2024-11-16 23:13:19,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2024-11-16 23:13:19,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2024-11-16 23:13:19,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2024-11-16 23:13:19,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2024-11-16 23:13:19,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2024-11-16 23:13:19,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2024-11-16 23:13:19,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2024-11-16 23:13:19,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2024-11-16 23:13:19,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2024-11-16 23:13:19,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2024-11-16 23:13:19,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:13:19,837 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-16 23:13:19,838 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:13:19,838 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-16 23:13:19,922 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:19,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 210 transitions, 460 flow [2024-11-16 23:13:19,948 INFO L124 PetriNetUnfolderBase]: 21/268 cut-off events. [2024-11-16 23:13:19,948 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-16 23:13:19,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 268 events. 21/268 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 877 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 232. Up to 12 conditions per place. [2024-11-16 23:13:19,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 205 places, 210 transitions, 460 flow [2024-11-16 23:13:19,953 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 205 places, 210 transitions, 460 flow [2024-11-16 23:13:19,954 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:19,954 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;@ccd95e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:19,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2024-11-16 23:13:19,956 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:19,956 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-11-16 23:13:19,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:13:19,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:19,956 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] [2024-11-16 23:13:19,956 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-16 23:13:19,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:19,956 INFO L85 PathProgramCache]: Analyzing trace with hash -805199948, now seen corresponding path program 1 times [2024-11-16 23:13:19,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:19,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796629028] [2024-11-16 23:13:19,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:19,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:20,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:13:20,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:20,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796629028] [2024-11-16 23:13:20,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796629028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:20,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:20,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:13:20,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818544670] [2024-11-16 23:13:20,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:20,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:13:20,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:20,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:13:20,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:13:20,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 210 [2024-11-16 23:13:20,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 210 transitions, 460 flow. Second operand has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:20,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:20,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 210 [2024-11-16 23:13:20,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:22,600 INFO L124 PetriNetUnfolderBase]: 5466/16411 cut-off events. [2024-11-16 23:13:22,601 INFO L125 PetriNetUnfolderBase]: For 4599/4599 co-relation queries the response was YES. [2024-11-16 23:13:22,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24724 conditions, 16411 events. 5466/16411 cut-off events. For 4599/4599 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 178323 event pairs, 3756 based on Foata normal form. 5439/20199 useless extension candidates. Maximal degree in co-relation 17261. Up to 6373 conditions per place. [2024-11-16 23:13:22,790 INFO L140 encePairwiseOnDemand]: 173/210 looper letters, 20 selfloop transitions, 0 changer transitions 0/170 dead transitions. [2024-11-16 23:13:22,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 170 transitions, 420 flow [2024-11-16 23:13:22,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:13:22,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:13:22,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 363 transitions. [2024-11-16 23:13:22,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8642857142857143 [2024-11-16 23:13:22,792 INFO L175 Difference]: Start difference. First operand has 205 places, 210 transitions, 460 flow. Second operand 2 states and 363 transitions. [2024-11-16 23:13:22,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 170 transitions, 420 flow [2024-11-16 23:13:22,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 170 transitions, 408 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:22,794 INFO L231 Difference]: Finished difference. Result has 172 places, 170 transitions, 368 flow [2024-11-16 23:13:22,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=368, PETRI_PLACES=172, PETRI_TRANSITIONS=170} [2024-11-16 23:13:22,795 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, -33 predicate places. [2024-11-16 23:13:22,795 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 170 transitions, 368 flow [2024-11-16 23:13:22,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:22,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:22,796 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] [2024-11-16 23:13:22,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:13:22,796 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-16 23:13:22,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:22,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1239700387, now seen corresponding path program 1 times [2024-11-16 23:13:22,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:22,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893444640] [2024-11-16 23:13:22,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:22,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:13:22,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:22,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893444640] [2024-11-16 23:13:22,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893444640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:22,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:22,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:13:22,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144654874] [2024-11-16 23:13:22,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:22,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:13:22,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:22,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:13:22,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:13:23,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 210 [2024-11-16 23:13:23,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 170 transitions, 368 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:23,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:23,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 210 [2024-11-16 23:13:23,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:33,301 INFO L124 PetriNetUnfolderBase]: 26524/62800 cut-off events. [2024-11-16 23:13:33,302 INFO L125 PetriNetUnfolderBase]: For 4772/4772 co-relation queries the response was YES. [2024-11-16 23:13:34,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99319 conditions, 62800 events. 26524/62800 cut-off events. For 4772/4772 co-relation queries the response was YES. Maximal size of possible extension queue 2111. Compared 756251 event pairs, 9749 based on Foata normal form. 0/56549 useless extension candidates. Maximal degree in co-relation 99311. Up to 22453 conditions per place. [2024-11-16 23:13:34,430 INFO L140 encePairwiseOnDemand]: 197/210 looper letters, 78 selfloop transitions, 24 changer transitions 0/243 dead transitions. [2024-11-16 23:13:34,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 243 transitions, 798 flow [2024-11-16 23:13:34,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:13:34,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:13:34,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 967 transitions. [2024-11-16 23:13:34,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7674603174603175 [2024-11-16 23:13:34,434 INFO L175 Difference]: Start difference. First operand has 172 places, 170 transitions, 368 flow. Second operand 6 states and 967 transitions. [2024-11-16 23:13:34,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 243 transitions, 798 flow [2024-11-16 23:13:34,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 243 transitions, 798 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:34,440 INFO L231 Difference]: Finished difference. Result has 182 places, 193 transitions, 534 flow [2024-11-16 23:13:34,440 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=182, PETRI_TRANSITIONS=193} [2024-11-16 23:13:34,440 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, -23 predicate places. [2024-11-16 23:13:34,441 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 193 transitions, 534 flow [2024-11-16 23:13:34,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:34,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:34,442 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-16 23:13:34,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:13:34,442 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-16 23:13:34,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:34,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2089753368, now seen corresponding path program 1 times [2024-11-16 23:13:34,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:34,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525202402] [2024-11-16 23:13:34,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:34,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:13:34,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:34,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525202402] [2024-11-16 23:13:34,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525202402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:34,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:34,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:13:34,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643086832] [2024-11-16 23:13:34,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:34,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:13:34,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:34,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:13:34,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:13:34,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 210 [2024-11-16 23:13:34,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 193 transitions, 534 flow. Second operand has 6 states, 6 states have (on average 145.66666666666666) internal successors, (874), 6 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:34,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:34,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 210 [2024-11-16 23:13:34,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand