./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 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_09-ptrmunge_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 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:19:28,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:19:28,661 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:19:28,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:19:28,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:19:28,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:19:28,692 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:19:28,692 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:19:28,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:19:28,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:19:28,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:19:28,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:19:28,694 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:19:28,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:19:28,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:19:28,694 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:19:28,695 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:19:28,696 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:19:28,696 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:19:28,696 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:19:28,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:19:28,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:19:28,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:19:28,697 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:19:28,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:19:28,697 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:19:28,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:19:28,697 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:19:28,697 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:19:28,697 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:19:28,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:19:28,697 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 -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2025-03-13 22:19:28,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:19:28,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:19:28,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:19:28,935 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:19:28,935 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:19:28,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2025-03-13 22:19:30,075 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/210add281/c42920ba829440dda5cb6098fdcdac6f/FLAG8a761aaf0 [2025-03-13 22:19:30,350 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:19:30,351 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2025-03-13 22:19:30,359 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/210add281/c42920ba829440dda5cb6098fdcdac6f/FLAG8a761aaf0 [2025-03-13 22:19:30,372 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/210add281/c42920ba829440dda5cb6098fdcdac6f [2025-03-13 22:19:30,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:19:30,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:19:30,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:19:30,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:19:30,381 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:19:30,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263d697c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30, skipping insertion in model container [2025-03-13 22:19:30,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,413 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:19:30,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:19:30,635 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:19:30,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:19:30,694 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:19:30,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30 WrapperNode [2025-03-13 22:19:30,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:19:30,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:19:30,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:19:30,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:19:30,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,716 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,742 INFO L138 Inliner]: procedures = 173, calls = 55, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 301 [2025-03-13 22:19:30,742 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:19:30,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:19:30,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:19:30,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:19:30,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,780 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,787 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:19:30,794 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:19:30,795 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:19:30,795 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:19:30,796 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (1/1) ... [2025-03-13 22:19:30,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:19:30,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:19:30,822 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) [2025-03-13 22:19:30,825 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 [2025-03-13 22:19:30,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 22:19:30,841 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-03-13 22:19:30,842 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-03-13 22:19:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 22:19:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-13 22:19:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:19:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-13 22:19:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-03-13 22:19:30,842 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-03-13 22:19:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 22:19:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:19:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-13 22:19:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:19:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:19:30,844 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:19:30,952 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:19:30,953 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:19:31,254 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L715: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-03-13 22:19:31,254 INFO L1326 $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 [2025-03-13 22:19:31,254 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-03-13 22:19:31,254 INFO L1326 $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 [2025-03-13 22:19:31,352 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:19:31,353 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:19:31,354 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:19:31,398 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:19:31,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:19:31 BoogieIcfgContainer [2025-03-13 22:19:31,399 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:19:31,400 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:19:31,400 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:19:31,404 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:19:31,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:19:30" (1/3) ... [2025-03-13 22:19:31,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66dab84e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:19:31, skipping insertion in model container [2025-03-13 22:19:31,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:30" (2/3) ... [2025-03-13 22:19:31,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66dab84e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:19:31, skipping insertion in model container [2025-03-13 22:19:31,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:19:31" (3/3) ... [2025-03-13 22:19:31,406 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2025-03-13 22:19:31,418 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:19:31,420 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_09-ptrmunge_racing.i that has 3 procedures, 292 locations, 1 initial locations, 12 loop locations, and 14 error locations. [2025-03-13 22:19:31,420 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:19:31,529 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-13 22:19:31,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 323 transitions, 666 flow [2025-03-13 22:19:31,715 INFO L124 PetriNetUnfolderBase]: 47/593 cut-off events. [2025-03-13 22:19:31,718 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-13 22:19:31,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 593 events. 47/593 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3118 event pairs, 0 based on Foata normal form. 0/511 useless extension candidates. Maximal degree in co-relation 331. Up to 8 conditions per place. [2025-03-13 22:19:31,732 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 323 transitions, 666 flow [2025-03-13 22:19:31,738 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 298 places, 323 transitions, 666 flow [2025-03-13 22:19:31,746 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:19:31,754 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;@76b66023, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:19:31,754 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2025-03-13 22:19:31,763 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:19:31,763 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2025-03-13 22:19:31,763 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:19:31,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:19:31,764 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] [2025-03-13 22:19:31,764 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)] === [2025-03-13 22:19:31,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:19:31,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1656296155, now seen corresponding path program 1 times [2025-03-13 22:19:31,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:19:31,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445186747] [2025-03-13 22:19:31,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:19:31,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:19:31,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-13 22:19:31,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-13 22:19:31,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:19:31,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:19:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:19:32,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:19:32,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445186747] [2025-03-13 22:19:32,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445186747] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:19:32,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:19:32,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:19:32,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28017380] [2025-03-13 22:19:32,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:19:32,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:19:32,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:19:32,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:19:32,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:19:32,777 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 323 [2025-03-13 22:19:32,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 323 transitions, 666 flow. Second operand has 6 states, 6 states have (on average 210.5) internal successors, (1263), 6 states have internal predecessors, (1263), 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) [2025-03-13 22:19:32,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:19:32,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 323 [2025-03-13 22:19:32,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:19:39,160 INFO L124 PetriNetUnfolderBase]: 25879/66642 cut-off events. [2025-03-13 22:19:39,160 INFO L125 PetriNetUnfolderBase]: For 390/390 co-relation queries the response was YES. [2025-03-13 22:19:39,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106331 conditions, 66642 events. 25879/66642 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 824292 event pairs, 24525 based on Foata normal form. 7379/69265 useless extension candidates. Maximal degree in co-relation 102957. Up to 39285 conditions per place. [2025-03-13 22:19:39,571 INFO L140 encePairwiseOnDemand]: 272/323 looper letters, 119 selfloop transitions, 86 changer transitions 0/412 dead transitions. [2025-03-13 22:19:39,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 412 transitions, 1254 flow [2025-03-13 22:19:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:19:39,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:19:39,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1532 transitions. [2025-03-13 22:19:39,591 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7905056759545923 [2025-03-13 22:19:39,592 INFO L175 Difference]: Start difference. First operand has 298 places, 323 transitions, 666 flow. Second operand 6 states and 1532 transitions. [2025-03-13 22:19:39,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 412 transitions, 1254 flow [2025-03-13 22:19:39,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 412 transitions, 1254 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:19:39,617 INFO L231 Difference]: Finished difference. Result has 304 places, 380 transitions, 1176 flow [2025-03-13 22:19:39,620 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1176, PETRI_PLACES=304, PETRI_TRANSITIONS=380} [2025-03-13 22:19:39,625 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 6 predicate places. [2025-03-13 22:19:39,625 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 380 transitions, 1176 flow [2025-03-13 22:19:39,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 210.5) internal successors, (1263), 6 states have internal predecessors, (1263), 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) [2025-03-13 22:19:39,626 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:19:39,626 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] [2025-03-13 22:19:39,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:19:39,626 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)] === [2025-03-13 22:19:39,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:19:39,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1533648536, now seen corresponding path program 1 times [2025-03-13 22:19:39,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:19:39,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205609270] [2025-03-13 22:19:39,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:19:39,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:19:39,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-13 22:19:39,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-13 22:19:39,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:19:39,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:19:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:19:39,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:19:39,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205609270] [2025-03-13 22:19:39,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205609270] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:19:39,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:19:39,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-13 22:19:39,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021986993] [2025-03-13 22:19:39,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:19:39,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:19:39,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:19:39,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:19:39,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:19:39,707 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 323 [2025-03-13 22:19:39,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 380 transitions, 1176 flow. Second operand has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 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) [2025-03-13 22:19:39,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:19:39,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 323 [2025-03-13 22:19:39,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:19:40,175 INFO L124 PetriNetUnfolderBase]: 510/4061 cut-off events. [2025-03-13 22:19:40,176 INFO L125 PetriNetUnfolderBase]: For 272/286 co-relation queries the response was YES. [2025-03-13 22:19:40,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5381 conditions, 4061 events. 510/4061 cut-off events. For 272/286 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 38402 event pairs, 211 based on Foata normal form. 1/3697 useless extension candidates. Maximal degree in co-relation 4852. Up to 565 conditions per place. [2025-03-13 22:19:40,201 INFO L140 encePairwiseOnDemand]: 320/323 looper letters, 34 selfloop transitions, 3 changer transitions 0/388 dead transitions. [2025-03-13 22:19:40,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 388 transitions, 1266 flow [2025-03-13 22:19:40,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:19:40,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:19:40,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 844 transitions. [2025-03-13 22:19:40,204 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8710010319917441 [2025-03-13 22:19:40,204 INFO L175 Difference]: Start difference. First operand has 304 places, 380 transitions, 1176 flow. Second operand 3 states and 844 transitions. [2025-03-13 22:19:40,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 388 transitions, 1266 flow [2025-03-13 22:19:40,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 388 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:19:40,215 INFO L231 Difference]: Finished difference. Result has 307 places, 380 transitions, 1187 flow [2025-03-13 22:19:40,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=1176, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1187, PETRI_PLACES=307, PETRI_TRANSITIONS=380} [2025-03-13 22:19:40,217 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 9 predicate places. [2025-03-13 22:19:40,217 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 380 transitions, 1187 flow [2025-03-13 22:19:40,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 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) [2025-03-13 22:19:40,218 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:19:40,218 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] [2025-03-13 22:19:40,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:19:40,219 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-03-13 22:19:40,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:19:40,221 INFO L85 PathProgramCache]: Analyzing trace with hash -964159646, now seen corresponding path program 1 times [2025-03-13 22:19:40,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:19:40,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52434382] [2025-03-13 22:19:40,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:19:40,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:19:40,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-13 22:19:40,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-13 22:19:40,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:19:40,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:19:40,254 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:19:40,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-13 22:19:40,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-13 22:19:40,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:19:40,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:19:40,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:19:40,296 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:19:40,296 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2025-03-13 22:19:40,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2025-03-13 22:19:40,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2025-03-13 22:19:40,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2025-03-13 22:19:40,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2025-03-13 22:19:40,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2025-03-13 22:19:40,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2025-03-13 22:19:40,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2025-03-13 22:19:40,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2025-03-13 22:19:40,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2025-03-13 22:19:40,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2025-03-13 22:19:40,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2025-03-13 22:19:40,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2025-03-13 22:19:40,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2025-03-13 22:19:40,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:19:40,300 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-13 22:19:40,303 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 22:19:40,303 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-13 22:19:40,391 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2025-03-13 22:19:40,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 488 places, 539 transitions, 1122 flow [2025-03-13 22:19:40,770 INFO L124 PetriNetUnfolderBase]: 161/1700 cut-off events. [2025-03-13 22:19:40,770 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2025-03-13 22:19:40,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1789 conditions, 1700 events. 161/1700 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11972 event pairs, 1 based on Foata normal form. 0/1468 useless extension candidates. Maximal degree in co-relation 1043. Up to 32 conditions per place. [2025-03-13 22:19:40,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 488 places, 539 transitions, 1122 flow [2025-03-13 22:19:40,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 488 places, 539 transitions, 1122 flow [2025-03-13 22:19:40,809 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:19:40,809 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;@76b66023, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:19:40,809 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2025-03-13 22:19:40,812 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:19:40,812 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2025-03-13 22:19:40,812 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:19:40,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:19:40,812 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] [2025-03-13 22:19:40,812 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)] === [2025-03-13 22:19:40,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:19:40,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1486757836, now seen corresponding path program 1 times [2025-03-13 22:19:40,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:19:40,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396061198] [2025-03-13 22:19:40,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:19:40,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:19:40,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-13 22:19:40,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-13 22:19:40,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:19:40,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:19:41,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:19:41,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:19:41,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396061198] [2025-03-13 22:19:41,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396061198] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:19:41,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:19:41,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:19:41,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933939270] [2025-03-13 22:19:41,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:19:41,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:19:41,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:19:41,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:19:41,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:19:41,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 539 [2025-03-13 22:19:41,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 539 transitions, 1122 flow. Second operand has 6 states, 6 states have (on average 338.5) internal successors, (2031), 6 states have internal predecessors, (2031), 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) [2025-03-13 22:19:41,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:19:41,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 539 [2025-03-13 22:19:41,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand