./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_10-ptrmunge_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:01:17,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:01:17,321 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 22:01:17,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:01:17,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:01:17,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:01:17,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:01:17,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:01:17,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:01:17,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:01:17,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:01:17,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:01:17,348 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:01:17,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:01:17,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:01:17,348 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:01:17,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:01:17,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:01:17,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:01:17,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:01:17,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:01:17,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:01:17,350 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 22:01:17,350 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:01:17,350 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:01:17,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:01:17,351 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:01:17,351 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:01:17,351 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:01:17,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:01:17,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:01:17,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:01:17,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:01:17,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:01:17,352 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 22:01:17,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 22:01:17,352 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:01:17,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:01:17,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:01:17,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:01:17,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:01:17,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:01:17,352 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 [2025-03-08 22:01:17,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:01:17,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:01:17,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:01:17,610 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:01:17,610 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:01:17,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2025-03-08 22:01:18,779 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5250e6776/977e7247b8214c6186784d9ef3863005/FLAG91a3d500e [2025-03-08 22:01:19,082 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:01:19,084 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2025-03-08 22:01:19,098 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5250e6776/977e7247b8214c6186784d9ef3863005/FLAG91a3d500e [2025-03-08 22:01:19,112 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5250e6776/977e7247b8214c6186784d9ef3863005 [2025-03-08 22:01:19,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:01:19,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:01:19,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:01:19,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:01:19,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:01:19,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be89308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19, skipping insertion in model container [2025-03-08 22:01:19,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,152 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:01:19,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:01:19,382 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:01:19,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:01:19,457 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:01:19,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19 WrapperNode [2025-03-08 22:01:19,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:01:19,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:01:19,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:01:19,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:01:19,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,509 INFO L138 Inliner]: procedures = 173, calls = 57, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 303 [2025-03-08 22:01:19,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:01:19,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:01:19,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:01:19,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:01:19,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,548 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,560 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:01:19,567 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:01:19,567 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:01:19,567 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:01:19,568 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (1/1) ... [2025-03-08 22:01:19,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:01:19,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:01:19,599 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) [2025-03-08 22:01:19,602 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 [2025-03-08 22:01:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 22:01:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-03-08 22:01:19,620 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-03-08 22:01:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 22:01:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 22:01:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:01:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:01:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-03-08 22:01:19,620 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-03-08 22:01:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:01:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 22:01:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 22:01:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:01:19,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:01:19,622 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 22:01:19,742 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:01:19,744 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:01:20,071 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L715: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-03-08 22:01:20,072 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2025-03-08 22:01:20,072 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-03-08 22:01:20,072 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-3: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2025-03-08 22:01:20,186 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 22:01:20,186 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:01:20,238 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:01:20,238 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:01:20,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:01:20 BoogieIcfgContainer [2025-03-08 22:01:20,238 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:01:20,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:01:20,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:01:20,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:01:20,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:01:19" (1/3) ... [2025-03-08 22:01:20,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263ca0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:01:20, skipping insertion in model container [2025-03-08 22:01:20,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:01:19" (2/3) ... [2025-03-08 22:01:20,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263ca0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:01:20, skipping insertion in model container [2025-03-08 22:01:20,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:01:20" (3/3) ... [2025-03-08 22:01:20,248 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2025-03-08 22:01:20,261 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:01:20,262 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_10-ptrmunge_racefree.i that has 3 procedures, 294 locations, 1 initial locations, 12 loop locations, and 14 error locations. [2025-03-08 22:01:20,263 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 22:01:20,392 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-08 22:01:20,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 325 transitions, 670 flow [2025-03-08 22:01:20,590 INFO L124 PetriNetUnfolderBase]: 47/595 cut-off events. [2025-03-08 22:01:20,592 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-08 22:01:20,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 595 events. 47/595 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3135 event pairs, 0 based on Foata normal form. 0/513 useless extension candidates. Maximal degree in co-relation 331. Up to 8 conditions per place. [2025-03-08 22:01:20,609 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 325 transitions, 670 flow [2025-03-08 22:01:20,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 300 places, 325 transitions, 670 flow [2025-03-08 22:01:20,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:01:20,641 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;@24635a31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:01:20,642 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2025-03-08 22:01:20,652 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:01:20,652 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2025-03-08 22:01:20,653 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:01:20,653 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:01:20,653 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:01:20,654 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-03-08 22:01:20,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:01:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash -751514254, now seen corresponding path program 1 times [2025-03-08 22:01:20,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:01:20,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393364912] [2025-03-08 22:01:20,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:01:20,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:01:20,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-08 22:01:20,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-08 22:01:20,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:01:20,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:01:21,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:01:21,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:01:21,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393364912] [2025-03-08 22:01:21,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393364912] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:01:21,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:01:21,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:01:21,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943855030] [2025-03-08 22:01:21,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:01:21,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:01:21,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:01:21,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:01:21,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:01:21,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 325 [2025-03-08 22:01:21,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 325 transitions, 670 flow. Second operand has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 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) [2025-03-08 22:01:21,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:01:21,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 325 [2025-03-08 22:01:21,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:01:28,015 INFO L124 PetriNetUnfolderBase]: 25883/66196 cut-off events. [2025-03-08 22:01:28,016 INFO L125 PetriNetUnfolderBase]: For 390/390 co-relation queries the response was YES. [2025-03-08 22:01:28,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105891 conditions, 66196 events. 25883/66196 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 817490 event pairs, 23170 based on Foata normal form. 7379/69069 useless extension candidates. Maximal degree in co-relation 102515. Up to 39291 conditions per place. [2025-03-08 22:01:28,409 INFO L140 encePairwiseOnDemand]: 274/325 looper letters, 119 selfloop transitions, 86 changer transitions 0/414 dead transitions. [2025-03-08 22:01:28,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 414 transitions, 1258 flow [2025-03-08 22:01:28,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:01:28,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:01:28,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1544 transitions. [2025-03-08 22:01:28,428 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7917948717948718 [2025-03-08 22:01:28,430 INFO L175 Difference]: Start difference. First operand has 300 places, 325 transitions, 670 flow. Second operand 6 states and 1544 transitions. [2025-03-08 22:01:28,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 414 transitions, 1258 flow [2025-03-08 22:01:28,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 414 transitions, 1258 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:01:28,453 INFO L231 Difference]: Finished difference. Result has 306 places, 382 transitions, 1180 flow [2025-03-08 22:01:28,455 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=325, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1180, PETRI_PLACES=306, PETRI_TRANSITIONS=382} [2025-03-08 22:01:28,459 INFO L279 CegarLoopForPetriNet]: 300 programPoint places, 6 predicate places. [2025-03-08 22:01:28,460 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 382 transitions, 1180 flow [2025-03-08 22:01:28,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 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) [2025-03-08 22:01:28,461 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:01:28,461 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:01:28,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:01:28,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-03-08 22:01:28,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:01:28,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2098971083, now seen corresponding path program 1 times [2025-03-08 22:01:28,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:01:28,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011845507] [2025-03-08 22:01:28,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:01:28,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:01:28,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-08 22:01:28,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-08 22:01:28,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:01:28,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:01:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:01:28,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:01:28,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011845507] [2025-03-08 22:01:28,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011845507] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:01:28,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:01:28,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:01:28,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387100943] [2025-03-08 22:01:28,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:01:28,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:01:28,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:01:28,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:01:28,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:01:28,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 325 [2025-03-08 22:01:28,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 382 transitions, 1180 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2025-03-08 22:01:28,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:01:28,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 325 [2025-03-08 22:01:28,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:01:29,063 INFO L124 PetriNetUnfolderBase]: 490/4015 cut-off events. [2025-03-08 22:01:29,063 INFO L125 PetriNetUnfolderBase]: For 274/296 co-relation queries the response was YES. [2025-03-08 22:01:29,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5285 conditions, 4015 events. 490/4015 cut-off events. For 274/296 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 38305 event pairs, 280 based on Foata normal form. 1/3654 useless extension candidates. Maximal degree in co-relation 4757. Up to 565 conditions per place. [2025-03-08 22:01:29,091 INFO L140 encePairwiseOnDemand]: 322/325 looper letters, 34 selfloop transitions, 3 changer transitions 0/390 dead transitions. [2025-03-08 22:01:29,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 390 transitions, 1270 flow [2025-03-08 22:01:29,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:01:29,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:01:29,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 850 transitions. [2025-03-08 22:01:29,103 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8717948717948718 [2025-03-08 22:01:29,103 INFO L175 Difference]: Start difference. First operand has 306 places, 382 transitions, 1180 flow. Second operand 3 states and 850 transitions. [2025-03-08 22:01:29,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 390 transitions, 1270 flow [2025-03-08 22:01:29,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 390 transitions, 1270 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:01:29,113 INFO L231 Difference]: Finished difference. Result has 309 places, 382 transitions, 1191 flow [2025-03-08 22:01:29,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=325, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1191, PETRI_PLACES=309, PETRI_TRANSITIONS=382} [2025-03-08 22:01:29,114 INFO L279 CegarLoopForPetriNet]: 300 programPoint places, 9 predicate places. [2025-03-08 22:01:29,115 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 382 transitions, 1191 flow [2025-03-08 22:01:29,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2025-03-08 22:01:29,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:01:29,115 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:01:29,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:01:29,116 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-03-08 22:01:29,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:01:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash -358582289, now seen corresponding path program 1 times [2025-03-08 22:01:29,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:01:29,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94655905] [2025-03-08 22:01:29,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:01:29,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:01:29,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-08 22:01:29,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-08 22:01:29,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:01:29,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:01:29,162 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:01:29,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-08 22:01:29,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-08 22:01:29,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:01:29,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:01:29,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 22:01:29,206 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:01:29,207 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2025-03-08 22:01:29,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2025-03-08 22:01:29,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2025-03-08 22:01:29,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2025-03-08 22:01:29,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2025-03-08 22:01:29,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2025-03-08 22:01:29,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2025-03-08 22:01:29,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2025-03-08 22:01:29,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2025-03-08 22:01:29,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2025-03-08 22:01:29,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2025-03-08 22:01:29,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2025-03-08 22:01:29,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2025-03-08 22:01:29,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2025-03-08 22:01:29,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2025-03-08 22:01:29,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2025-03-08 22:01:29,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2025-03-08 22:01:29,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2025-03-08 22:01:29,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2025-03-08 22:01:29,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2025-03-08 22:01:29,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2025-03-08 22:01:29,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2025-03-08 22:01:29,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2025-03-08 22:01:29,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2025-03-08 22:01:29,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2025-03-08 22:01:29,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2025-03-08 22:01:29,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:01:29,212 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-08 22:01:29,215 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-08 22:01:29,215 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-08 22:01:29,352 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2025-03-08 22:01:29,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 490 places, 541 transitions, 1126 flow [2025-03-08 22:01:29,823 INFO L124 PetriNetUnfolderBase]: 161/1702 cut-off events. [2025-03-08 22:01:29,823 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2025-03-08 22:01:29,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1791 conditions, 1702 events. 161/1702 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11954 event pairs, 1 based on Foata normal form. 0/1470 useless extension candidates. Maximal degree in co-relation 1045. Up to 32 conditions per place. [2025-03-08 22:01:29,868 INFO L82 GeneralOperation]: Start removeDead. Operand has 490 places, 541 transitions, 1126 flow [2025-03-08 22:01:29,899 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 490 places, 541 transitions, 1126 flow [2025-03-08 22:01:29,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:01:29,900 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;@24635a31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:01:29,900 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2025-03-08 22:01:29,916 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:01:29,916 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2025-03-08 22:01:29,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:01:29,916 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:01:29,917 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:01:29,917 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2025-03-08 22:01:29,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:01:29,917 INFO L85 PathProgramCache]: Analyzing trace with hash -940741139, now seen corresponding path program 1 times [2025-03-08 22:01:29,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:01:29,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655383930] [2025-03-08 22:01:29,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:01:29,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:01:29,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-08 22:01:29,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-08 22:01:29,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:01:29,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:01:30,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:01:30,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:01:30,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655383930] [2025-03-08 22:01:30,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655383930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:01:30,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:01:30,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:01:30,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716926666] [2025-03-08 22:01:30,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:01:30,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:01:30,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:01:30,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:01:30,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:01:30,779 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 541 [2025-03-08 22:01:30,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 541 transitions, 1126 flow. Second operand has 6 states, 6 states have (on average 340.5) internal successors, (2043), 6 states have internal predecessors, (2043), 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) [2025-03-08 22:01:30,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:01:30,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 541 [2025-03-08 22:01:30,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand