./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 c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-c00e63d-m [2025-02-06 09:24:48,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:24:48,147 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:24:48,156 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:24:48,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:24:48,185 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:24:48,186 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:24:48,186 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:24:48,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:24:48,186 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:24:48,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:24:48,187 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:24:48,187 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:24:48,187 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:24:48,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:24:48,188 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:24:48,188 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-jdk21/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 [2025-02-06 09:24:48,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:24:48,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:24:48,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:24:48,392 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:24:48,393 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:24:48,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2025-02-06 09:24:49,490 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba62fc83d/243eb09293d94cc38f43412b9d47dd78/FLAG4e328aebd [2025-02-06 09:24:49,785 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:24:49,786 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2025-02-06 09:24:49,795 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba62fc83d/243eb09293d94cc38f43412b9d47dd78/FLAG4e328aebd [2025-02-06 09:24:50,082 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba62fc83d/243eb09293d94cc38f43412b9d47dd78 [2025-02-06 09:24:50,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:24:50,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:24:50,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:24:50,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:24:50,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:24:50,090 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,091 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45049b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50, skipping insertion in model container [2025-02-06 09:24:50,091 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:24:50,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:24:50,355 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:24:50,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:24:50,425 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:24:50,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50 WrapperNode [2025-02-06 09:24:50,426 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:24:50,427 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:24:50,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:24:50,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:24:50,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,458 INFO L138 Inliner]: procedures = 173, calls = 55, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 301 [2025-02-06 09:24:50,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:24:50,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:24:50,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:24:50,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:24:50,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,477 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:24:50,484 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:24:50,484 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:24:50,484 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:24:50,485 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (1/1) ... [2025-02-06 09:24:50,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:24:50,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:24:50,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:24:50,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:24:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:24:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-02-06 09:24:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-02-06 09:24:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:24:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:24:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:24:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:24:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-02-06 09:24:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-02-06 09:24:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:24:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:24:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:24:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:24:50,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:24:50,531 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:24:50,654 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:24:50,656 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:24:50,971 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L715: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-02-06 09:24:50,972 INFO L1309 $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 [2025-02-06 09:24:50,972 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-02-06 09:24:50,972 INFO L1309 $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 [2025-02-06 09:24:51,087 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:24:51,087 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:24:51,117 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:24:51,117 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:24:51,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:24:51 BoogieIcfgContainer [2025-02-06 09:24:51,118 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:24:51,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:24:51,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:24:51,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:24:51,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:24:50" (1/3) ... [2025-02-06 09:24:51,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@915639e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:24:51, skipping insertion in model container [2025-02-06 09:24:51,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:24:50" (2/3) ... [2025-02-06 09:24:51,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@915639e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:24:51, skipping insertion in model container [2025-02-06 09:24:51,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:24:51" (3/3) ... [2025-02-06 09:24:51,127 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2025-02-06 09:24:51,138 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:24:51,139 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_09-ptrmunge_racing.i that has 3 procedures, 300 locations, 1 initial locations, 14 loop locations, and 14 error locations. [2025-02-06 09:24:51,140 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:24:51,261 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-02-06 09:24:51,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 306 places, 331 transitions, 682 flow [2025-02-06 09:24:51,452 INFO L124 PetriNetUnfolderBase]: 47/605 cut-off events. [2025-02-06 09:24:51,455 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-06 09:24:51,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 605 events. 47/605 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3186 event pairs, 0 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 339. Up to 8 conditions per place. [2025-02-06 09:24:51,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 306 places, 331 transitions, 682 flow [2025-02-06 09:24:51,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 331 transitions, 682 flow [2025-02-06 09:24:51,490 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:24:51,500 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;@6b9531b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:24:51,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2025-02-06 09:24:51,509 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:24:51,509 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2025-02-06 09:24:51,509 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:24:51,509 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:24:51,510 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] [2025-02-06 09:24:51,510 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-02-06 09:24:51,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:24:51,514 INFO L85 PathProgramCache]: Analyzing trace with hash 894510327, now seen corresponding path program 1 times [2025-02-06 09:24:51,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:24:51,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524583700] [2025-02-06 09:24:51,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:24:51,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:24:51,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 09:24:51,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 09:24:51,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:24:51,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:24:52,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:24:52,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:24:52,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524583700] [2025-02-06 09:24:52,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524583700] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:24:52,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:24:52,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:24:52,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539662258] [2025-02-06 09:24:52,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:24:52,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:24:52,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:24:52,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:24:52,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:24:52,709 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 331 [2025-02-06 09:24:52,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 331 transitions, 682 flow. Second operand has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 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) [2025-02-06 09:24:52,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:24:52,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 331 [2025-02-06 09:24:52,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:24:59,695 INFO L124 PetriNetUnfolderBase]: 25883/67004 cut-off events. [2025-02-06 09:24:59,695 INFO L125 PetriNetUnfolderBase]: For 390/390 co-relation queries the response was YES. [2025-02-06 09:24:59,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106699 conditions, 67004 events. 25883/67004 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 1709. Compared 829647 event pairs, 23170 based on Foata normal form. 10774/73162 useless extension candidates. Maximal degree in co-relation 103263. Up to 39291 conditions per place. [2025-02-06 09:25:00,238 INFO L140 encePairwiseOnDemand]: 280/331 looper letters, 119 selfloop transitions, 86 changer transitions 0/420 dead transitions. [2025-02-06 09:25:00,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 420 transitions, 1270 flow [2025-02-06 09:25:00,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:25:00,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:25:00,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1580 transitions. [2025-02-06 09:25:00,259 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7955689828801611 [2025-02-06 09:25:00,261 INFO L175 Difference]: Start difference. First operand has 306 places, 331 transitions, 682 flow. Second operand 6 states and 1580 transitions. [2025-02-06 09:25:00,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 420 transitions, 1270 flow [2025-02-06 09:25:00,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 420 transitions, 1270 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:25:00,278 INFO L231 Difference]: Finished difference. Result has 312 places, 388 transitions, 1192 flow [2025-02-06 09:25:00,280 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1192, PETRI_PLACES=312, PETRI_TRANSITIONS=388} [2025-02-06 09:25:00,284 INFO L279 CegarLoopForPetriNet]: 306 programPoint places, 6 predicate places. [2025-02-06 09:25:00,284 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 388 transitions, 1192 flow [2025-02-06 09:25:00,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 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) [2025-02-06 09:25:00,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:25:00,285 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] [2025-02-06 09:25:00,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:25:00,286 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-02-06 09:25:00,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:25:00,287 INFO L85 PathProgramCache]: Analyzing trace with hash -326219342, now seen corresponding path program 1 times [2025-02-06 09:25:00,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:25:00,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768612400] [2025-02-06 09:25:00,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:25:00,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:25:00,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-06 09:25:00,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-06 09:25:00,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:25:00,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:25:00,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:25:00,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:25:00,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768612400] [2025-02-06 09:25:00,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768612400] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:25:00,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:25:00,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:25:00,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638700303] [2025-02-06 09:25:00,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:25:00,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:25:00,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:25:00,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:25:00,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:25:00,376 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 331 [2025-02-06 09:25:00,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 388 transitions, 1192 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 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) [2025-02-06 09:25:00,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:25:00,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 331 [2025-02-06 09:25:00,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:25:00,759 INFO L124 PetriNetUnfolderBase]: 510/4152 cut-off events. [2025-02-06 09:25:00,760 INFO L125 PetriNetUnfolderBase]: For 275/294 co-relation queries the response was YES. [2025-02-06 09:25:00,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5469 conditions, 4152 events. 510/4152 cut-off events. For 275/294 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 39283 event pairs, 211 based on Foata normal form. 1/3790 useless extension candidates. Maximal degree in co-relation 4928. Up to 565 conditions per place. [2025-02-06 09:25:00,778 INFO L140 encePairwiseOnDemand]: 328/331 looper letters, 34 selfloop transitions, 3 changer transitions 0/396 dead transitions. [2025-02-06 09:25:00,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 396 transitions, 1282 flow [2025-02-06 09:25:00,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:25:00,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:25:00,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 868 transitions. [2025-02-06 09:25:00,782 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8741188318227593 [2025-02-06 09:25:00,783 INFO L175 Difference]: Start difference. First operand has 312 places, 388 transitions, 1192 flow. Second operand 3 states and 868 transitions. [2025-02-06 09:25:00,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 396 transitions, 1282 flow [2025-02-06 09:25:00,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 396 transitions, 1282 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:25:00,795 INFO L231 Difference]: Finished difference. Result has 315 places, 388 transitions, 1203 flow [2025-02-06 09:25:00,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=1192, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1203, PETRI_PLACES=315, PETRI_TRANSITIONS=388} [2025-02-06 09:25:00,796 INFO L279 CegarLoopForPetriNet]: 306 programPoint places, 9 predicate places. [2025-02-06 09:25:00,796 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 388 transitions, 1203 flow [2025-02-06 09:25:00,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 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) [2025-02-06 09:25:00,797 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:25:00,797 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] [2025-02-06 09:25:00,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:25:00,798 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-02-06 09:25:00,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:25:00,798 INFO L85 PathProgramCache]: Analyzing trace with hash 974462289, now seen corresponding path program 1 times [2025-02-06 09:25:00,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:25:00,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847789558] [2025-02-06 09:25:00,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:25:00,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:25:00,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-02-06 09:25:00,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-02-06 09:25:00,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:25:00,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:25:00,825 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:25:00,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-02-06 09:25:00,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-02-06 09:25:00,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:25:00,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:25:00,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:25:00,861 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:25:00,862 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2025-02-06 09:25:00,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2025-02-06 09:25:00,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2025-02-06 09:25:00,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2025-02-06 09:25:00,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2025-02-06 09:25:00,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2025-02-06 09:25:00,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2025-02-06 09:25:00,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2025-02-06 09:25:00,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2025-02-06 09:25:00,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2025-02-06 09:25:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2025-02-06 09:25:00,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2025-02-06 09:25:00,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2025-02-06 09:25:00,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2025-02-06 09:25:00,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:25:00,867 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-06 09:25:00,870 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:25:00,870 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:25:00,940 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2025-02-06 09:25:00,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 504 places, 555 transitions, 1154 flow [2025-02-06 09:25:01,251 INFO L124 PetriNetUnfolderBase]: 161/1732 cut-off events. [2025-02-06 09:25:01,252 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2025-02-06 09:25:01,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1821 conditions, 1732 events. 161/1732 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12269 event pairs, 1 based on Foata normal form. 0/1500 useless extension candidates. Maximal degree in co-relation 1063. Up to 32 conditions per place. [2025-02-06 09:25:01,267 INFO L82 GeneralOperation]: Start removeDead. Operand has 504 places, 555 transitions, 1154 flow [2025-02-06 09:25:01,280 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 504 places, 555 transitions, 1154 flow [2025-02-06 09:25:01,284 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:25:01,284 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;@6b9531b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:25:01,284 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2025-02-06 09:25:01,287 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:25:01,289 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2025-02-06 09:25:01,289 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:25:01,289 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:25:01,290 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] [2025-02-06 09:25:01,290 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2025-02-06 09:25:01,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:25:01,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1128973920, now seen corresponding path program 1 times [2025-02-06 09:25:01,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:25:01,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926403060] [2025-02-06 09:25:01,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:25:01,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:25:01,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 09:25:01,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 09:25:01,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:25:01,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:25:01,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:25:01,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:25:01,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926403060] [2025-02-06 09:25:01,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926403060] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:25:01,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:25:01,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:25:01,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302233190] [2025-02-06 09:25:01,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:25:01,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:25:01,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:25:01,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:25:01,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:25:01,950 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 555 [2025-02-06 09:25:01,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 555 transitions, 1154 flow. Second operand has 6 states, 6 states have (on average 354.5) internal successors, (2127), 6 states have internal predecessors, (2127), 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) [2025-02-06 09:25:01,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:25:01,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 555 [2025-02-06 09:25:01,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand