./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 735b3cc8 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-?-735b3cc-m [2025-03-14 01:39:09,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:39:10,029 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:39:10,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:39:10,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:39:10,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:39:10,066 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:39:10,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:39:10,067 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:39:10,067 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:39:10,068 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:39:10,068 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:39:10,068 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:39:10,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:39:10,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:39:10,069 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:39:10,070 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:39:10,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:39:10,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:39:10,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:39:10,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:39:10,070 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:39:10,070 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:39:10,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:39:10,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:39:10,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:39:10,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:39:10,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:39:10,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:39:10,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:39:10,071 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 [2025-03-14 01:39:10,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:39:10,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:39:10,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:39:10,291 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:39:10,291 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:39:10,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2025-03-14 01:39:11,457 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e94d87d9/8fe8c8bd73224283ad1e2b1329bcf225/FLAG078269ddd [2025-03-14 01:39:11,776 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:39:11,778 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2025-03-14 01:39:11,793 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e94d87d9/8fe8c8bd73224283ad1e2b1329bcf225/FLAG078269ddd [2025-03-14 01:39:12,020 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e94d87d9/8fe8c8bd73224283ad1e2b1329bcf225 [2025-03-14 01:39:12,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:39:12,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:39:12,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:39:12,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:39:12,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:39:12,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446a8a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12, skipping insertion in model container [2025-03-14 01:39:12,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,057 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:39:12,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:39:12,355 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:39:12,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:39:12,433 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:39:12,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12 WrapperNode [2025-03-14 01:39:12,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:39:12,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:39:12,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:39:12,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:39:12,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,471 INFO L138 Inliner]: procedures = 173, calls = 55, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 301 [2025-03-14 01:39:12,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:39:12,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:39:12,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:39:12,472 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:39:12,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,499 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:39:12,512 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:39:12,512 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:39:12,512 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:39:12,513 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (1/1) ... [2025-03-14 01:39:12,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:39:12,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:39:12,545 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) [2025-03-14 01:39:12,552 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 [2025-03-14 01:39:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 01:39:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-03-14 01:39:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-03-14 01:39:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 01:39:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-14 01:39:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:39:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-14 01:39:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-03-14 01:39:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-03-14 01:39:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-14 01:39:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:39:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-14 01:39:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:39:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:39:12,576 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:39:12,700 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:39:12,702 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:39:13,035 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L715: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-03-14 01:39:13,036 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 [2025-03-14 01:39:13,036 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-03-14 01:39:13,036 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 [2025-03-14 01:39:13,133 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:39:13,134 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:39:13,134 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:39:13,170 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:39:13,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:39:13 BoogieIcfgContainer [2025-03-14 01:39:13,171 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:39:13,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:39:13,173 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:39:13,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:39:13,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:39:12" (1/3) ... [2025-03-14 01:39:13,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3551459f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:39:13, skipping insertion in model container [2025-03-14 01:39:13,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:39:12" (2/3) ... [2025-03-14 01:39:13,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3551459f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:39:13, skipping insertion in model container [2025-03-14 01:39:13,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:39:13" (3/3) ... [2025-03-14 01:39:13,180 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2025-03-14 01:39:13,193 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:39:13,194 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. [2025-03-14 01:39:13,195 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:39:13,302 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-14 01:39:13,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 323 transitions, 666 flow [2025-03-14 01:39:13,502 INFO L124 PetriNetUnfolderBase]: 47/593 cut-off events. [2025-03-14 01:39:13,505 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-14 01:39:13,515 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. [2025-03-14 01:39:13,515 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 323 transitions, 666 flow [2025-03-14 01:39:13,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 298 places, 323 transitions, 666 flow [2025-03-14 01:39:13,532 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:39:13,541 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;@345fd877, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:39:13,541 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2025-03-14 01:39:13,555 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:39:13,556 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2025-03-14 01:39:13,556 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:39:13,556 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:39:13,557 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] [2025-03-14 01:39:13,557 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)] === [2025-03-14 01:39:13,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:39:13,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1656296155, now seen corresponding path program 1 times [2025-03-14 01:39:13,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:39:13,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186816669] [2025-03-14 01:39:13,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:39:13,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:39:13,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-14 01:39:13,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-14 01:39:13,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:39:13,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:39:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:39:14,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:39:14,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186816669] [2025-03-14 01:39:14,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186816669] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:39:14,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:39:14,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:39:14,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765321810] [2025-03-14 01:39:14,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:39:14,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:39:14,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:39:14,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:39:14,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:39:14,625 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 323 [2025-03-14 01:39:14,631 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) [2025-03-14 01:39:14,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:39:14,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 323 [2025-03-14 01:39:14,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:39:20,620 INFO L124 PetriNetUnfolderBase]: 25879/66642 cut-off events. [2025-03-14 01:39:20,620 INFO L125 PetriNetUnfolderBase]: For 390/390 co-relation queries the response was YES. [2025-03-14 01:39:20,719 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. [2025-03-14 01:39:20,967 INFO L140 encePairwiseOnDemand]: 272/323 looper letters, 119 selfloop transitions, 86 changer transitions 0/412 dead transitions. [2025-03-14 01:39:20,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 412 transitions, 1254 flow [2025-03-14 01:39:20,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:39:20,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:39:20,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1532 transitions. [2025-03-14 01:39:20,984 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7905056759545923 [2025-03-14 01:39:20,986 INFO L175 Difference]: Start difference. First operand has 298 places, 323 transitions, 666 flow. Second operand 6 states and 1532 transitions. [2025-03-14 01:39:20,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 412 transitions, 1254 flow [2025-03-14 01:39:20,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 412 transitions, 1254 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:39:21,008 INFO L231 Difference]: Finished difference. Result has 304 places, 380 transitions, 1176 flow [2025-03-14 01:39:21,012 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} [2025-03-14 01:39:21,016 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 6 predicate places. [2025-03-14 01:39:21,016 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 380 transitions, 1176 flow [2025-03-14 01:39:21,017 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) [2025-03-14 01:39:21,017 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:39:21,017 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] [2025-03-14 01:39:21,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:39:21,017 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)] === [2025-03-14 01:39:21,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:39:21,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1533648536, now seen corresponding path program 1 times [2025-03-14 01:39:21,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:39:21,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514703554] [2025-03-14 01:39:21,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:39:21,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:39:21,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-14 01:39:21,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-14 01:39:21,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:39:21,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:39:21,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:39:21,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:39:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514703554] [2025-03-14 01:39:21,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514703554] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:39:21,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:39:21,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 01:39:21,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927608110] [2025-03-14 01:39:21,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:39:21,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:39:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:39:21,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:39:21,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:39:21,102 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 323 [2025-03-14 01:39:21,103 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) [2025-03-14 01:39:21,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:39:21,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 323 [2025-03-14 01:39:21,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:39:21,434 INFO L124 PetriNetUnfolderBase]: 510/4061 cut-off events. [2025-03-14 01:39:21,434 INFO L125 PetriNetUnfolderBase]: For 272/286 co-relation queries the response was YES. [2025-03-14 01:39:21,447 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. [2025-03-14 01:39:21,460 INFO L140 encePairwiseOnDemand]: 320/323 looper letters, 34 selfloop transitions, 3 changer transitions 0/388 dead transitions. [2025-03-14 01:39:21,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 388 transitions, 1266 flow [2025-03-14 01:39:21,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:39:21,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:39:21,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 844 transitions. [2025-03-14 01:39:21,464 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8710010319917441 [2025-03-14 01:39:21,464 INFO L175 Difference]: Start difference. First operand has 304 places, 380 transitions, 1176 flow. Second operand 3 states and 844 transitions. [2025-03-14 01:39:21,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 388 transitions, 1266 flow [2025-03-14 01:39:21,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 388 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:39:21,473 INFO L231 Difference]: Finished difference. Result has 307 places, 380 transitions, 1187 flow [2025-03-14 01:39:21,473 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} [2025-03-14 01:39:21,474 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 9 predicate places. [2025-03-14 01:39:21,474 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 380 transitions, 1187 flow [2025-03-14 01:39:21,475 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) [2025-03-14 01:39:21,475 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:39:21,475 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] [2025-03-14 01:39:21,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:39:21,475 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)] === [2025-03-14 01:39:21,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:39:21,476 INFO L85 PathProgramCache]: Analyzing trace with hash -964159646, now seen corresponding path program 1 times [2025-03-14 01:39:21,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:39:21,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304651381] [2025-03-14 01:39:21,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:39:21,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:39:21,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-14 01:39:21,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-14 01:39:21,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:39:21,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:39:21,499 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 01:39:21,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-14 01:39:21,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-14 01:39:21,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:39:21,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:39:21,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 01:39:21,537 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 01:39:21,538 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2025-03-14 01:39:21,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2025-03-14 01:39:21,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2025-03-14 01:39:21,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2025-03-14 01:39:21,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2025-03-14 01:39:21,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2025-03-14 01:39:21,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2025-03-14 01:39:21,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2025-03-14 01:39:21,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2025-03-14 01:39:21,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2025-03-14 01:39:21,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2025-03-14 01:39:21,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2025-03-14 01:39:21,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2025-03-14 01:39:21,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2025-03-14 01:39:21,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2025-03-14 01:39:21,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2025-03-14 01:39:21,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2025-03-14 01:39:21,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2025-03-14 01:39:21,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2025-03-14 01:39:21,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2025-03-14 01:39:21,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2025-03-14 01:39:21,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2025-03-14 01:39:21,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2025-03-14 01:39:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2025-03-14 01:39:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2025-03-14 01:39:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2025-03-14 01:39:21,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:39:21,542 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-14 01:39:21,545 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-14 01:39:21,545 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-14 01:39:21,717 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2025-03-14 01:39:21,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 488 places, 539 transitions, 1122 flow [2025-03-14 01:39:22,167 INFO L124 PetriNetUnfolderBase]: 161/1700 cut-off events. [2025-03-14 01:39:22,168 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2025-03-14 01:39:22,237 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. [2025-03-14 01:39:22,237 INFO L82 GeneralOperation]: Start removeDead. Operand has 488 places, 539 transitions, 1122 flow [2025-03-14 01:39:22,274 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 488 places, 539 transitions, 1122 flow [2025-03-14 01:39:22,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:39:22,276 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;@345fd877, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:39:22,276 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2025-03-14 01:39:22,284 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:39:22,291 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2025-03-14 01:39:22,291 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:39:22,291 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:39:22,291 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] [2025-03-14 01:39:22,292 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)] === [2025-03-14 01:39:22,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:39:22,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1486757836, now seen corresponding path program 1 times [2025-03-14 01:39:22,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:39:22,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512992368] [2025-03-14 01:39:22,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:39:22,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:39:22,311 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-14 01:39:22,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-14 01:39:22,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:39:22,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:39:22,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:39:22,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:39:22,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512992368] [2025-03-14 01:39:22,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512992368] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:39:22,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:39:22,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:39:22,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94056619] [2025-03-14 01:39:22,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:39:22,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:39:22,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:39:22,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:39:22,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:39:23,333 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 539 [2025-03-14 01:39:23,335 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) [2025-03-14 01:39:23,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:39:23,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 539 [2025-03-14 01:39:23,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand