./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.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 b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:33:51,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:33:52,026 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:33:52,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:33:52,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:33:52,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:33:52,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:33:52,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:33:52,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:33:52,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:33:52,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:33:52,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:33:52,070 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:33:52,070 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:33:52,070 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:33:52,071 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:33:52,071 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:33:52,071 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:33:52,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:33:52,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:33:52,072 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:33:52,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:33:52,075 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:33:52,075 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:33:52,075 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:33:52,076 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:33:52,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:33:52,076 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:33:52,077 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:33:52,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:33:52,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:33:52,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:33:52,078 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:33:52,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:33:52,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:33:52,078 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:33:52,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:33:52,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:33:52,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:33:52,080 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:33:52,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:33:52,081 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 [2024-11-10 14:33:52,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:33:52,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:33:52,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:33:52,374 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:33:52,374 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:33:52,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i [2024-11-10 14:33:53,866 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:33:54,169 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:33:54,171 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i [2024-11-10 14:33:54,194 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02a066087/6f264c6320e9460c81d9bb6779482f89/FLAG71255a628 [2024-11-10 14:33:54,451 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02a066087/6f264c6320e9460c81d9bb6779482f89 [2024-11-10 14:33:54,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:33:54,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:33:54,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:33:54,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:33:54,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:33:54,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:33:54" (1/1) ... [2024-11-10 14:33:54,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc4d7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:54, skipping insertion in model container [2024-11-10 14:33:54,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:33:54" (1/1) ... [2024-11-10 14:33:54,505 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:33:54,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:33:54,973 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:33:55,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:33:55,097 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:33:55,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55 WrapperNode [2024-11-10 14:33:55,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:33:55,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:33:55,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:33:55,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:33:55,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (1/1) ... [2024-11-10 14:33:55,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (1/1) ... [2024-11-10 14:33:55,168 INFO L138 Inliner]: procedures = 171, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 127 [2024-11-10 14:33:55,168 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:33:55,169 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:33:55,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:33:55,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:33:55,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (1/1) ... [2024-11-10 14:33:55,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (1/1) ... [2024-11-10 14:33:55,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (1/1) ... [2024-11-10 14:33:55,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (1/1) ... [2024-11-10 14:33:55,200 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (1/1) ... [2024-11-10 14:33:55,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (1/1) ... [2024-11-10 14:33:55,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (1/1) ... [2024-11-10 14:33:55,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (1/1) ... [2024-11-10 14:33:55,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:33:55,219 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:33:55,219 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:33:55,219 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:33:55,220 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (1/1) ... [2024-11-10 14:33:55,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:33:55,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:33:55,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:33:55,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:33:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:33:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:33:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:33:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:33:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:33:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:33:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:33:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:33:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:33:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:33:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:33:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:33:55,310 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:33:55,436 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:33:55,438 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:33:55,651 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-10 14:33:55,652 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L713-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-10 14:33:55,725 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:33:55,726 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:33:55,782 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:33:55,782 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:33:55,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:33:55 BoogieIcfgContainer [2024-11-10 14:33:55,784 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:33:55,787 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:33:55,787 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:33:55,790 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:33:55,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:33:54" (1/3) ... [2024-11-10 14:33:55,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147e9c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:33:55, skipping insertion in model container [2024-11-10 14:33:55,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:33:55" (2/3) ... [2024-11-10 14:33:55,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147e9c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:33:55, skipping insertion in model container [2024-11-10 14:33:55,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:33:55" (3/3) ... [2024-11-10 14:33:55,795 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_61-invariant_racing.i [2024-11-10 14:33:55,814 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:33:55,814 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-10 14:33:55,815 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:33:55,909 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:33:55,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 200 transitions, 407 flow [2024-11-10 14:33:56,080 INFO L124 PetriNetUnfolderBase]: 32/304 cut-off events. [2024-11-10 14:33:56,080 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:33:56,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 304 events. 32/304 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1182 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 169. Up to 6 conditions per place. [2024-11-10 14:33:56,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 200 transitions, 407 flow [2024-11-10 14:33:56,101 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 200 transitions, 407 flow [2024-11-10 14:33:56,116 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:33:56,126 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@39981e9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:33:56,127 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-10 14:33:56,145 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:33:56,145 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2024-11-10 14:33:56,146 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:33:56,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:33:56,147 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] [2024-11-10 14:33:56,148 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:33:56,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:33:56,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1170943050, now seen corresponding path program 1 times [2024-11-10 14:33:56,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:33:56,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889067907] [2024-11-10 14:33:56,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:33:56,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:33:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:33:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:33:56,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:33:56,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889067907] [2024-11-10 14:33:56,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889067907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:33:56,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:33:56,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:33:56,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363181260] [2024-11-10 14:33:56,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:33:56,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:33:56,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:33:56,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:33:56,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:33:56,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 200 [2024-11-10 14:33:56,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 200 transitions, 407 flow. Second operand has 2 states, 2 states have (on average 162.0) internal successors, (324), 2 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:33:56,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:33:56,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 200 [2024-11-10 14:33:56,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:33:56,711 INFO L124 PetriNetUnfolderBase]: 90/790 cut-off events. [2024-11-10 14:33:56,711 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:33:56,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 984 conditions, 790 events. 90/790 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4505 event pairs, 80 based on Foata normal form. 184/882 useless extension candidates. Maximal degree in co-relation 847. Up to 189 conditions per place. [2024-11-10 14:33:56,724 INFO L140 encePairwiseOnDemand]: 182/200 looper letters, 20 selfloop transitions, 0 changer transitions 0/180 dead transitions. [2024-11-10 14:33:56,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 180 transitions, 407 flow [2024-11-10 14:33:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:33:56,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:33:56,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 360 transitions. [2024-11-10 14:33:56,743 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9 [2024-11-10 14:33:56,747 INFO L175 Difference]: Start difference. First operand has 183 places, 200 transitions, 407 flow. Second operand 2 states and 360 transitions. [2024-11-10 14:33:56,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 180 transitions, 407 flow [2024-11-10 14:33:56,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 180 transitions, 407 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:33:56,757 INFO L231 Difference]: Finished difference. Result has 182 places, 180 transitions, 367 flow [2024-11-10 14:33:56,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=200, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=367, PETRI_PLACES=182, PETRI_TRANSITIONS=180} [2024-11-10 14:33:56,764 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, -1 predicate places. [2024-11-10 14:33:56,765 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 180 transitions, 367 flow [2024-11-10 14:33:56,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 162.0) internal successors, (324), 2 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:33:56,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:33:56,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:33:56,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:33:56,767 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:33:56,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:33:56,769 INFO L85 PathProgramCache]: Analyzing trace with hash -828475825, now seen corresponding path program 1 times [2024-11-10 14:33:56,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:33:56,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009010878] [2024-11-10 14:33:56,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:33:56,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:33:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:33:56,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:33:56,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:33:56,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009010878] [2024-11-10 14:33:56,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009010878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:33:56,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:33:56,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:33:56,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869305844] [2024-11-10 14:33:56,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:33:56,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:33:56,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:33:56,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:33:56,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:33:56,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 200 [2024-11-10 14:33:56,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 180 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:33:56,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:33:56,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 200 [2024-11-10 14:33:56,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:33:57,167 INFO L124 PetriNetUnfolderBase]: 121/1259 cut-off events. [2024-11-10 14:33:57,167 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:33:57,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1259 events. 121/1259 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8257 event pairs, 0 based on Foata normal form. 1/1146 useless extension candidates. Maximal degree in co-relation 1529. Up to 256 conditions per place. [2024-11-10 14:33:57,175 INFO L140 encePairwiseOnDemand]: 197/200 looper letters, 34 selfloop transitions, 2 changer transitions 0/190 dead transitions. [2024-11-10 14:33:57,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 190 transitions, 459 flow [2024-11-10 14:33:57,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:33:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:33:57,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 502 transitions. [2024-11-10 14:33:57,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8366666666666667 [2024-11-10 14:33:57,180 INFO L175 Difference]: Start difference. First operand has 182 places, 180 transitions, 367 flow. Second operand 3 states and 502 transitions. [2024-11-10 14:33:57,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 190 transitions, 459 flow [2024-11-10 14:33:57,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 190 transitions, 459 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:33:57,190 INFO L231 Difference]: Finished difference. Result has 185 places, 180 transitions, 375 flow [2024-11-10 14:33:57,191 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=200, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=375, PETRI_PLACES=185, PETRI_TRANSITIONS=180} [2024-11-10 14:33:57,192 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, 2 predicate places. [2024-11-10 14:33:57,192 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 180 transitions, 375 flow [2024-11-10 14:33:57,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:33:57,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:33:57,193 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:33:57,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:33:57,194 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:33:57,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:33:57,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1985610548, now seen corresponding path program 1 times [2024-11-10 14:33:57,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:33:57,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631451965] [2024-11-10 14:33:57,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:33:57,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:33:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:33:57,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:33:57,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:33:57,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631451965] [2024-11-10 14:33:57,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631451965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:33:57,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:33:57,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:33:57,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54455022] [2024-11-10 14:33:57,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:33:57,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:33:57,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:33:57,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:33:57,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:33:57,874 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 200 [2024-11-10 14:33:57,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 180 transitions, 375 flow. Second operand has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:33:57,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:33:57,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 200 [2024-11-10 14:33:57,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:33:58,161 INFO L124 PetriNetUnfolderBase]: 237/1409 cut-off events. [2024-11-10 14:33:58,161 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-10 14:33:58,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1933 conditions, 1409 events. 237/1409 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9178 event pairs, 138 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 1927. Up to 369 conditions per place. [2024-11-10 14:33:58,171 INFO L140 encePairwiseOnDemand]: 194/200 looper letters, 72 selfloop transitions, 5 changer transitions 0/219 dead transitions. [2024-11-10 14:33:58,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 219 transitions, 607 flow [2024-11-10 14:33:58,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:33:58,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:33:58,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 936 transitions. [2024-11-10 14:33:58,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.78 [2024-11-10 14:33:58,175 INFO L175 Difference]: Start difference. First operand has 185 places, 180 transitions, 375 flow. Second operand 6 states and 936 transitions. [2024-11-10 14:33:58,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 219 transitions, 607 flow [2024-11-10 14:33:58,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 219 transitions, 603 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:33:58,180 INFO L231 Difference]: Finished difference. Result has 187 places, 179 transitions, 379 flow [2024-11-10 14:33:58,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=200, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=379, PETRI_PLACES=187, PETRI_TRANSITIONS=179} [2024-11-10 14:33:58,181 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, 4 predicate places. [2024-11-10 14:33:58,181 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 179 transitions, 379 flow [2024-11-10 14:33:58,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:33:58,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:33:58,183 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:33:58,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:33:58,183 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:33:58,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:33:58,184 INFO L85 PathProgramCache]: Analyzing trace with hash -2065318512, now seen corresponding path program 1 times [2024-11-10 14:33:58,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:33:58,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355212878] [2024-11-10 14:33:58,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:33:58,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:33:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:33:58,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:33:58,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:33:58,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355212878] [2024-11-10 14:33:58,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355212878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:33:58,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:33:58,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:33:58,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523569595] [2024-11-10 14:33:58,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:33:58,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:33:58,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:33:58,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:33:58,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:33:58,270 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 200 [2024-11-10 14:33:58,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 179 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:33:58,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:33:58,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 200 [2024-11-10 14:33:58,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:33:58,599 INFO L124 PetriNetUnfolderBase]: 423/2479 cut-off events. [2024-11-10 14:33:58,599 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-10 14:33:58,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3426 conditions, 2479 events. 423/2479 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 19085 event pairs, 155 based on Foata normal form. 0/2261 useless extension candidates. Maximal degree in co-relation 3420. Up to 544 conditions per place. [2024-11-10 14:33:58,610 INFO L140 encePairwiseOnDemand]: 178/200 looper letters, 61 selfloop transitions, 16 changer transitions 0/214 dead transitions. [2024-11-10 14:33:58,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 214 transitions, 606 flow [2024-11-10 14:33:58,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:33:58,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:33:58,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2024-11-10 14:33:58,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-11-10 14:33:58,613 INFO L175 Difference]: Start difference. First operand has 187 places, 179 transitions, 379 flow. Second operand 3 states and 500 transitions. [2024-11-10 14:33:58,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 214 transitions, 606 flow [2024-11-10 14:33:58,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 214 transitions, 596 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:33:58,618 INFO L231 Difference]: Finished difference. Result has 186 places, 195 transitions, 509 flow [2024-11-10 14:33:58,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=200, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=509, PETRI_PLACES=186, PETRI_TRANSITIONS=195} [2024-11-10 14:33:58,619 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, 3 predicate places. [2024-11-10 14:33:58,620 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 195 transitions, 509 flow [2024-11-10 14:33:58,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:33:58,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:33:58,621 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:33:58,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:33:58,621 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:33:58,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:33:58,622 INFO L85 PathProgramCache]: Analyzing trace with hash 818902776, now seen corresponding path program 1 times [2024-11-10 14:33:58,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:33:58,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131781735] [2024-11-10 14:33:58,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:33:58,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:33:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:33:58,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:33:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:33:58,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:33:58,695 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:33:58,696 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-10 14:33:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-10 14:33:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-10 14:33:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-10 14:33:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-10 14:33:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-10 14:33:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-10 14:33:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-10 14:33:58,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-10 14:33:58,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-10 14:33:58,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-10 14:33:58,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-10 14:33:58,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-10 14:33:58,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-10 14:33:58,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-10 14:33:58,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-10 14:33:58,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-10 14:33:58,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-10 14:33:58,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:33:58,701 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-10 14:33:58,704 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:33:58,704 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 14:33:58,748 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 14:33:58,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 264 transitions, 544 flow [2024-11-10 14:33:58,817 INFO L124 PetriNetUnfolderBase]: 54/501 cut-off events. [2024-11-10 14:33:58,817 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 14:33:58,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 501 events. 54/501 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2216 event pairs, 0 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 306. Up to 9 conditions per place. [2024-11-10 14:33:58,824 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 264 transitions, 544 flow [2024-11-10 14:33:58,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 264 transitions, 544 flow [2024-11-10 14:33:58,833 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:33:58,838 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;@39981e9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:33:58,838 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-10 14:33:58,842 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:33:58,842 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2024-11-10 14:33:58,842 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:33:58,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:33:58,842 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] [2024-11-10 14:33:58,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:33:58,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:33:58,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1840432318, now seen corresponding path program 1 times [2024-11-10 14:33:58,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:33:58,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995771845] [2024-11-10 14:33:58,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:33:58,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:33:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:33:58,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:33:58,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:33:58,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995771845] [2024-11-10 14:33:58,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995771845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:33:58,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:33:58,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:33:58,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329602878] [2024-11-10 14:33:58,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:33:58,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:33:58,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:33:58,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:33:58,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:33:58,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 264 [2024-11-10 14:33:58,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 264 transitions, 544 flow. Second operand has 2 states, 2 states have (on average 208.0) internal successors, (416), 2 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:33:58,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:33:58,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 264 [2024-11-10 14:33:58,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:00,175 INFO L124 PetriNetUnfolderBase]: 2092/9007 cut-off events. [2024-11-10 14:34:00,176 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-10 14:34:00,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12262 conditions, 9007 events. 2092/9007 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 96249 event pairs, 1970 based on Foata normal form. 2798/10859 useless extension candidates. Maximal degree in co-relation 11099. Up to 3192 conditions per place. [2024-11-10 14:34:00,258 INFO L140 encePairwiseOnDemand]: 240/264 looper letters, 32 selfloop transitions, 0 changer transitions 0/238 dead transitions. [2024-11-10 14:34:00,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 238 transitions, 556 flow [2024-11-10 14:34:00,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:34:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:34:00,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 470 transitions. [2024-11-10 14:34:00,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8901515151515151 [2024-11-10 14:34:00,261 INFO L175 Difference]: Start difference. First operand has 241 places, 264 transitions, 544 flow. Second operand 2 states and 470 transitions. [2024-11-10 14:34:00,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 238 transitions, 556 flow [2024-11-10 14:34:00,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 238 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:00,267 INFO L231 Difference]: Finished difference. Result has 240 places, 238 transitions, 492 flow [2024-11-10 14:34:00,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=492, PETRI_PLACES=240, PETRI_TRANSITIONS=238} [2024-11-10 14:34:00,269 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, -1 predicate places. [2024-11-10 14:34:00,269 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 238 transitions, 492 flow [2024-11-10 14:34:00,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 208.0) internal successors, (416), 2 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:00,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:00,270 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:00,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:34:00,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:00,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:00,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1965119665, now seen corresponding path program 1 times [2024-11-10 14:34:00,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:00,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313466754] [2024-11-10 14:34:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:00,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:00,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:00,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:00,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313466754] [2024-11-10 14:34:00,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313466754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:00,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:00,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:34:00,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083700498] [2024-11-10 14:34:00,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:00,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:00,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:00,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:00,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:34:00,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 264 [2024-11-10 14:34:00,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 238 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:00,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:00,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 264 [2024-11-10 14:34:00,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:02,063 INFO L124 PetriNetUnfolderBase]: 3058/13125 cut-off events. [2024-11-10 14:34:02,064 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-11-10 14:34:02,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17843 conditions, 13125 events. 3058/13125 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 145829 event pairs, 1340 based on Foata normal form. 1/11813 useless extension candidates. Maximal degree in co-relation 17838. Up to 4643 conditions per place. [2024-11-10 14:34:02,167 INFO L140 encePairwiseOnDemand]: 261/264 looper letters, 47 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2024-11-10 14:34:02,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 249 transitions, 612 flow [2024-11-10 14:34:02,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:34:02,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:34:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 653 transitions. [2024-11-10 14:34:02,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8244949494949495 [2024-11-10 14:34:02,170 INFO L175 Difference]: Start difference. First operand has 240 places, 238 transitions, 492 flow. Second operand 3 states and 653 transitions. [2024-11-10 14:34:02,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 249 transitions, 612 flow [2024-11-10 14:34:02,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 249 transitions, 612 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:02,178 INFO L231 Difference]: Finished difference. Result has 243 places, 239 transitions, 504 flow [2024-11-10 14:34:02,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=243, PETRI_TRANSITIONS=239} [2024-11-10 14:34:02,180 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, 2 predicate places. [2024-11-10 14:34:02,180 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 239 transitions, 504 flow [2024-11-10 14:34:02,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:02,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:02,181 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:02,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:34:02,182 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:02,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:02,182 INFO L85 PathProgramCache]: Analyzing trace with hash 916328140, now seen corresponding path program 1 times [2024-11-10 14:34:02,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:02,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885419340] [2024-11-10 14:34:02,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:02,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:02,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:02,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:02,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885419340] [2024-11-10 14:34:02,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885419340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:02,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:02,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:34:02,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639154602] [2024-11-10 14:34:02,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:02,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:34:02,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:02,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:34:02,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:34:02,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 264 [2024-11-10 14:34:02,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 239 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:02,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:02,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 264 [2024-11-10 14:34:02,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:04,970 INFO L124 PetriNetUnfolderBase]: 5298/19382 cut-off events. [2024-11-10 14:34:04,971 INFO L125 PetriNetUnfolderBase]: For 247/247 co-relation queries the response was YES. [2024-11-10 14:34:05,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28115 conditions, 19382 events. 5298/19382 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 225621 event pairs, 570 based on Foata normal form. 0/17985 useless extension candidates. Maximal degree in co-relation 28108. Up to 6335 conditions per place. [2024-11-10 14:34:05,104 INFO L140 encePairwiseOnDemand]: 258/264 looper letters, 124 selfloop transitions, 6 changer transitions 0/318 dead transitions. [2024-11-10 14:34:05,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 318 transitions, 922 flow [2024-11-10 14:34:05,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:34:05,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:34:05,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1264 transitions. [2024-11-10 14:34:05,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.797979797979798 [2024-11-10 14:34:05,107 INFO L175 Difference]: Start difference. First operand has 243 places, 239 transitions, 504 flow. Second operand 6 states and 1264 transitions. [2024-11-10 14:34:05,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 318 transitions, 922 flow [2024-11-10 14:34:05,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 318 transitions, 920 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:34:05,113 INFO L231 Difference]: Finished difference. Result has 246 places, 238 transitions, 512 flow [2024-11-10 14:34:05,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=246, PETRI_TRANSITIONS=238} [2024-11-10 14:34:05,114 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, 5 predicate places. [2024-11-10 14:34:05,114 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 238 transitions, 512 flow [2024-11-10 14:34:05,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:05,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:05,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:05,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:34:05,116 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:05,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:05,117 INFO L85 PathProgramCache]: Analyzing trace with hash 828092818, now seen corresponding path program 1 times [2024-11-10 14:34:05,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:05,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149910133] [2024-11-10 14:34:05,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:05,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:05,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:05,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:05,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149910133] [2024-11-10 14:34:05,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149910133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:05,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:05,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:34:05,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274200126] [2024-11-10 14:34:05,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:05,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:05,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:05,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:05,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:34:05,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 264 [2024-11-10 14:34:05,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 238 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:05,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:05,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 264 [2024-11-10 14:34:05,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:11,979 INFO L124 PetriNetUnfolderBase]: 23170/73290 cut-off events. [2024-11-10 14:34:11,979 INFO L125 PetriNetUnfolderBase]: For 513/513 co-relation queries the response was YES. [2024-11-10 14:34:12,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110602 conditions, 73290 events. 23170/73290 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 1242. Compared 968098 event pairs, 8859 based on Foata normal form. 0/66198 useless extension candidates. Maximal degree in co-relation 110595. Up to 22148 conditions per place. [2024-11-10 14:34:12,487 INFO L140 encePairwiseOnDemand]: 231/264 looper letters, 96 selfloop transitions, 24 changer transitions 0/293 dead transitions. [2024-11-10 14:34:12,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 293 transitions, 873 flow [2024-11-10 14:34:12,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:34:12,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:34:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 651 transitions. [2024-11-10 14:34:12,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.821969696969697 [2024-11-10 14:34:12,492 INFO L175 Difference]: Start difference. First operand has 246 places, 238 transitions, 512 flow. Second operand 3 states and 651 transitions. [2024-11-10 14:34:12,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 293 transitions, 873 flow [2024-11-10 14:34:12,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 293 transitions, 861 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:34:12,502 INFO L231 Difference]: Finished difference. Result has 245 places, 262 transitions, 710 flow [2024-11-10 14:34:12,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=710, PETRI_PLACES=245, PETRI_TRANSITIONS=262} [2024-11-10 14:34:12,507 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, 4 predicate places. [2024-11-10 14:34:12,507 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 262 transitions, 710 flow [2024-11-10 14:34:12,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:12,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:12,508 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:12,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:34:12,508 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:12,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:12,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1486953917, now seen corresponding path program 1 times [2024-11-10 14:34:12,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:12,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988682863] [2024-11-10 14:34:12,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:12,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:12,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:12,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988682863] [2024-11-10 14:34:12,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988682863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:12,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553509669] [2024-11-10 14:34:12,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:12,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:12,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:12,614 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:34:12,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:34:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:12,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 14:34:12,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:12,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:34:12,742 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:34:12,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553509669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:12,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:34:12,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-10 14:34:12,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277174447] [2024-11-10 14:34:12,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:12,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:12,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:12,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:12,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:34:12,816 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 264 [2024-11-10 14:34:12,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 262 transitions, 710 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:12,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:12,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 264 [2024-11-10 14:34:12,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:21,134 INFO L124 PetriNetUnfolderBase]: 24259/81919 cut-off events. [2024-11-10 14:34:21,134 INFO L125 PetriNetUnfolderBase]: For 25011/26086 co-relation queries the response was YES. [2024-11-10 14:34:21,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144448 conditions, 81919 events. 24259/81919 cut-off events. For 25011/26086 co-relation queries the response was YES. Maximal size of possible extension queue 1369. Compared 1122640 event pairs, 15273 based on Foata normal form. 248/75101 useless extension candidates. Maximal degree in co-relation 144440. Up to 33213 conditions per place. [2024-11-10 14:34:21,725 INFO L140 encePairwiseOnDemand]: 250/264 looper letters, 86 selfloop transitions, 24 changer transitions 0/304 dead transitions. [2024-11-10 14:34:21,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 304 transitions, 1074 flow [2024-11-10 14:34:21,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:34:21,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:34:21,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2024-11-10 14:34:21,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8131313131313131 [2024-11-10 14:34:21,729 INFO L175 Difference]: Start difference. First operand has 245 places, 262 transitions, 710 flow. Second operand 3 states and 644 transitions. [2024-11-10 14:34:21,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 304 transitions, 1074 flow [2024-11-10 14:34:21,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 304 transitions, 1006 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:34:21,811 INFO L231 Difference]: Finished difference. Result has 247 places, 284 transitions, 888 flow [2024-11-10 14:34:21,811 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=888, PETRI_PLACES=247, PETRI_TRANSITIONS=284} [2024-11-10 14:34:21,812 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, 6 predicate places. [2024-11-10 14:34:21,813 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 284 transitions, 888 flow [2024-11-10 14:34:21,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:21,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:21,814 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:21,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 14:34:22,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-10 14:34:22,015 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:22,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:22,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1287541637, now seen corresponding path program 1 times [2024-11-10 14:34:22,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:22,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299175640] [2024-11-10 14:34:22,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:22,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:22,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:22,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:22,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299175640] [2024-11-10 14:34:22,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299175640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:22,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132898007] [2024-11-10 14:34:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:22,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:22,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:22,357 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:34:22,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:34:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:22,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:34:22,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:22,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:22,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:22,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132898007] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:22,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:22,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:34:22,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792132233] [2024-11-10 14:34:22,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:22,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:34:22,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:22,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:34:22,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:34:22,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2024-11-10 14:34:22,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 284 transitions, 888 flow. Second operand has 10 states, 10 states have (on average 200.4) internal successors, (2004), 10 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:22,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:22,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2024-11-10 14:34:22,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:23,375 INFO L124 PetriNetUnfolderBase]: 1795/7019 cut-off events. [2024-11-10 14:34:23,376 INFO L125 PetriNetUnfolderBase]: For 715/777 co-relation queries the response was YES. [2024-11-10 14:34:23,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10768 conditions, 7019 events. 1795/7019 cut-off events. For 715/777 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 70259 event pairs, 180 based on Foata normal form. 254/6982 useless extension candidates. Maximal degree in co-relation 10759. Up to 1236 conditions per place. [2024-11-10 14:34:23,413 INFO L140 encePairwiseOnDemand]: 259/264 looper letters, 116 selfloop transitions, 7 changer transitions 0/265 dead transitions. [2024-11-10 14:34:23,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 265 transitions, 908 flow [2024-11-10 14:34:23,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:34:23,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:34:23,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1907 transitions. [2024-11-10 14:34:23,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8026094276094277 [2024-11-10 14:34:23,418 INFO L175 Difference]: Start difference. First operand has 247 places, 284 transitions, 888 flow. Second operand 9 states and 1907 transitions. [2024-11-10 14:34:23,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 265 transitions, 908 flow [2024-11-10 14:34:23,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 265 transitions, 868 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-11-10 14:34:23,426 INFO L231 Difference]: Finished difference. Result has 171 places, 173 transitions, 452 flow [2024-11-10 14:34:23,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=452, PETRI_PLACES=171, PETRI_TRANSITIONS=173} [2024-11-10 14:34:23,427 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, -70 predicate places. [2024-11-10 14:34:23,427 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 173 transitions, 452 flow [2024-11-10 14:34:23,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 200.4) internal successors, (2004), 10 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:23,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:23,429 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:23,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 14:34:23,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-10 14:34:23,634 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:23,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:23,634 INFO L85 PathProgramCache]: Analyzing trace with hash -582399483, now seen corresponding path program 1 times [2024-11-10 14:34:23,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:23,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114824562] [2024-11-10 14:34:23,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:23,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:23,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:23,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:23,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114824562] [2024-11-10 14:34:23,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114824562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:23,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:23,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:34:23,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593976134] [2024-11-10 14:34:23,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:23,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:23,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:23,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:23,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:34:23,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 264 [2024-11-10 14:34:23,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 173 transitions, 452 flow. Second operand has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:23,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:23,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 264 [2024-11-10 14:34:23,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:23,753 INFO L124 PetriNetUnfolderBase]: 35/228 cut-off events. [2024-11-10 14:34:23,754 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-10 14:34:23,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 228 events. 35/228 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 793 event pairs, 32 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 356. Up to 79 conditions per place. [2024-11-10 14:34:23,755 INFO L140 encePairwiseOnDemand]: 261/264 looper letters, 12 selfloop transitions, 1 changer transitions 0/75 dead transitions. [2024-11-10 14:34:23,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 75 transitions, 218 flow [2024-11-10 14:34:23,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:34:23,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:34:23,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 603 transitions. [2024-11-10 14:34:23,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7613636363636364 [2024-11-10 14:34:23,757 INFO L175 Difference]: Start difference. First operand has 171 places, 173 transitions, 452 flow. Second operand 3 states and 603 transitions. [2024-11-10 14:34:23,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 75 transitions, 218 flow [2024-11-10 14:34:23,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 75 transitions, 203 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-10 14:34:23,759 INFO L231 Difference]: Finished difference. Result has 86 places, 75 transitions, 179 flow [2024-11-10 14:34:23,759 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=86, PETRI_TRANSITIONS=75} [2024-11-10 14:34:23,761 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, -155 predicate places. [2024-11-10 14:34:23,761 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 75 transitions, 179 flow [2024-11-10 14:34:23,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:23,762 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:23,762 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:23,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 14:34:23,762 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:23,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:23,763 INFO L85 PathProgramCache]: Analyzing trace with hash 470447889, now seen corresponding path program 1 times [2024-11-10 14:34:23,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:23,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411647562] [2024-11-10 14:34:23,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:23,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:34:23,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:34:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:34:23,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:34:23,821 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:34:23,822 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-10 14:34:23,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-10 14:34:23,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-10 14:34:23,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-10 14:34:23,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-10 14:34:23,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-10 14:34:23,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-10 14:34:23,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-10 14:34:23,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-10 14:34:23,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-10 14:34:23,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-10 14:34:23,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-10 14:34:23,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-10 14:34:23,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-10 14:34:23,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-10 14:34:23,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-10 14:34:23,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-10 14:34:23,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-10 14:34:23,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-10 14:34:23,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-10 14:34:23,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-10 14:34:23,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-10 14:34:23,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-10 14:34:23,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 14:34:23,827 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:23,827 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:34:23,827 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 14:34:23,858 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 14:34:23,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 299 places, 328 transitions, 683 flow [2024-11-10 14:34:23,939 INFO L124 PetriNetUnfolderBase]: 81/745 cut-off events. [2024-11-10 14:34:23,939 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-10 14:34:23,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 745 events. 81/745 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3500 event pairs, 1 based on Foata normal form. 0/613 useless extension candidates. Maximal degree in co-relation 509. Up to 16 conditions per place. [2024-11-10 14:34:23,947 INFO L82 GeneralOperation]: Start removeDead. Operand has 299 places, 328 transitions, 683 flow [2024-11-10 14:34:23,952 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 328 transitions, 683 flow [2024-11-10 14:34:23,953 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:34:23,953 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;@39981e9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:34:23,953 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-10 14:34:23,957 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:34:23,957 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2024-11-10 14:34:23,957 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:34:23,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:23,957 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] [2024-11-10 14:34:23,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-10 14:34:23,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:23,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1026569734, now seen corresponding path program 1 times [2024-11-10 14:34:23,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:23,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734848088] [2024-11-10 14:34:23,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:23,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:23,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:23,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:23,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734848088] [2024-11-10 14:34:23,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734848088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:23,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:23,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:34:23,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130323206] [2024-11-10 14:34:23,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:23,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:34:23,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:23,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:34:23,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:34:23,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 328 [2024-11-10 14:34:23,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 328 transitions, 683 flow. Second operand has 2 states, 2 states have (on average 254.0) internal successors, (508), 2 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:23,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:23,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 328 [2024-11-10 14:34:23,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:37,772 INFO L124 PetriNetUnfolderBase]: 35500/111240 cut-off events. [2024-11-10 14:34:37,772 INFO L125 PetriNetUnfolderBase]: For 2128/2128 co-relation queries the response was YES. [2024-11-10 14:34:38,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159949 conditions, 111240 events. 35500/111240 cut-off events. For 2128/2128 co-relation queries the response was YES. Maximal size of possible extension queue 2345. Compared 1604316 event pairs, 34111 based on Foata normal form. 38821/139859 useless extension candidates. Maximal degree in co-relation 145379. Up to 47731 conditions per place. [2024-11-10 14:34:39,150 INFO L140 encePairwiseOnDemand]: 298/328 looper letters, 44 selfloop transitions, 0 changer transitions 0/296 dead transitions. [2024-11-10 14:34:39,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 296 transitions, 707 flow [2024-11-10 14:34:39,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:34:39,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:34:39,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 580 transitions. [2024-11-10 14:34:39,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8841463414634146 [2024-11-10 14:34:39,153 INFO L175 Difference]: Start difference. First operand has 299 places, 328 transitions, 683 flow. Second operand 2 states and 580 transitions. [2024-11-10 14:34:39,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 296 transitions, 707 flow [2024-11-10 14:34:39,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 296 transitions, 707 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:39,170 INFO L231 Difference]: Finished difference. Result has 298 places, 296 transitions, 619 flow [2024-11-10 14:34:39,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=619, PETRI_PLACES=298, PETRI_TRANSITIONS=296} [2024-11-10 14:34:39,172 INFO L277 CegarLoopForPetriNet]: 299 programPoint places, -1 predicate places. [2024-11-10 14:34:39,172 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 296 transitions, 619 flow [2024-11-10 14:34:39,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 254.0) internal successors, (508), 2 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:39,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:39,173 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:39,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 14:34:39,173 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-10 14:34:39,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:39,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1425055665, now seen corresponding path program 1 times [2024-11-10 14:34:39,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:39,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940166993] [2024-11-10 14:34:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:39,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:39,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:39,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:39,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940166993] [2024-11-10 14:34:39,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940166993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:39,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:39,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:34:39,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150689598] [2024-11-10 14:34:39,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:39,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:39,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:39,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:39,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:34:39,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 328 [2024-11-10 14:34:39,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 296 transitions, 619 flow. Second operand has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:39,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:39,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 328 [2024-11-10 14:34:39,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand