./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.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_84-list2_racing2.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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:27:04,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:27:04,809 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:27:04,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:27:04,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:27:04,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:27:04,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:27:04,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:27:04,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:27:04,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:27:04,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:27:04,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:27:04,827 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:27:04,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:27:04,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:27:04,829 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:27:04,829 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:27:04,829 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:27:04,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:27:04,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:27:04,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:27:04,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:27:04,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:27:04,829 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:27:04,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:27:04,829 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:27:04,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:27:04,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:27:04,830 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:27:04,830 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:27:04,830 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:27:04,830 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 -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2025-02-06 09:27:05,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:27:05,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:27:05,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:27:05,063 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:27:05,064 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:27:05,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2025-02-06 09:27:06,297 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4fee54b2b/cf9c9bfd6e2a415e87f4d06dde63c9dd/FLAG4cf3d6d54 [2025-02-06 09:27:06,694 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:27:06,694 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2025-02-06 09:27:06,713 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4fee54b2b/cf9c9bfd6e2a415e87f4d06dde63c9dd/FLAG4cf3d6d54 [2025-02-06 09:27:06,895 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4fee54b2b/cf9c9bfd6e2a415e87f4d06dde63c9dd [2025-02-06 09:27:06,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:27:06,898 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:27:06,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:27:06,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:27:06,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:27:06,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:27:06" (1/1) ... [2025-02-06 09:27:06,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d402bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:06, skipping insertion in model container [2025-02-06 09:27:06,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:27:06" (1/1) ... [2025-02-06 09:27:06,923 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:27:07,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:27:07,216 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:27:07,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:27:07,341 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:27:07,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07 WrapperNode [2025-02-06 09:27:07,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:27:07,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:27:07,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:27:07,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:27:07,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,394 INFO L138 Inliner]: procedures = 280, calls = 99, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 618 [2025-02-06 09:27:07,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:27:07,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:27:07,395 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:27:07,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:27:07,400 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,443 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:27:07,467 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:27:07,467 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:27:07,467 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:27:07,472 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:27:07,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:27:07,504 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 09:27:07,507 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 09:27:07,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:27:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-06 09:27:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-02-06 09:27:07,525 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-02-06 09:27:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:27:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:27:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:27:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-02-06 09:27:07,526 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-02-06 09:27:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:27:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:27:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:27:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:27:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-06 09:27:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2025-02-06 09:27:07,527 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2025-02-06 09:27:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:27:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:27:07,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:27:07,529 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 09:27:07,671 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:27:07,672 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:27:08,422 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-02-06 09:27:08,423 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2025-02-06 09:27:08,423 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-02-06 09:27:08,423 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2025-02-06 09:27:08,423 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055: havoc main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset; [2025-02-06 09:27:08,423 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055-1: SUMMARY for call ULTIMATE.dealloc(main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset); srcloc: null [2025-02-06 09:27:08,424 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:27:08,424 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:27:08,462 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:27:08,463 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:27:08,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:27:08 BoogieIcfgContainer [2025-02-06 09:27:08,463 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:27:08,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:27:08,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:27:08,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:27:08,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:27:06" (1/3) ... [2025-02-06 09:27:08,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578dfaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:27:08, skipping insertion in model container [2025-02-06 09:27:08,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07" (2/3) ... [2025-02-06 09:27:08,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578dfaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:27:08, skipping insertion in model container [2025-02-06 09:27:08,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:27:08" (3/3) ... [2025-02-06 09:27:08,470 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2025-02-06 09:27:08,479 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:27:08,481 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_84-list2_racing2.i that has 4 procedures, 654 locations, 1 initial locations, 19 loop locations, and 44 error locations. [2025-02-06 09:27:08,481 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:27:08,626 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2025-02-06 09:27:08,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 663 places, 701 transitions, 1441 flow [2025-02-06 09:27:09,522 INFO L124 PetriNetUnfolderBase]: 157/2485 cut-off events. [2025-02-06 09:27:09,525 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-02-06 09:27:09,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2539 conditions, 2485 events. 157/2485 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 18419 event pairs, 0 based on Foata normal form. 0/2169 useless extension candidates. Maximal degree in co-relation 1261. Up to 16 conditions per place. [2025-02-06 09:27:09,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 663 places, 701 transitions, 1441 flow [2025-02-06 09:27:09,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 663 places, 701 transitions, 1441 flow [2025-02-06 09:27:09,642 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:27:09,654 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;@44e4b273, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:27:09,656 INFO L334 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2025-02-06 09:27:09,663 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:27:09,663 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2025-02-06 09:27:09,663 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:27:09,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:09,664 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] [2025-02-06 09:27:09,664 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2025-02-06 09:27:09,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:09,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2136794093, now seen corresponding path program 1 times [2025-02-06 09:27:09,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:09,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18590915] [2025-02-06 09:27:09,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:09,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:09,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-06 09:27:09,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-06 09:27:09,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:09,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:09,911 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 09:27:09,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:09,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18590915] [2025-02-06 09:27:09,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18590915] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:09,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:09,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:27:09,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673295253] [2025-02-06 09:27:09,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:09,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:27:09,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:09,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:27:09,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:27:09,983 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 701 [2025-02-06 09:27:09,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 663 places, 701 transitions, 1441 flow. Second operand has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 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 09:27:09,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:09,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 701 [2025-02-06 09:27:09,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:27:26,877 INFO L124 PetriNetUnfolderBase]: 14982/95358 cut-off events. [2025-02-06 09:27:26,878 INFO L125 PetriNetUnfolderBase]: For 2600/2600 co-relation queries the response was YES. [2025-02-06 09:27:27,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115648 conditions, 95358 events. 14982/95358 cut-off events. For 2600/2600 co-relation queries the response was YES. Maximal size of possible extension queue 1290. Compared 1496425 event pairs, 12992 based on Foata normal form. 13267/100032 useless extension candidates. Maximal degree in co-relation 88148. Up to 19299 conditions per place. [2025-02-06 09:27:28,539 INFO L140 encePairwiseOnDemand]: 671/701 looper letters, 46 selfloop transitions, 2 changer transitions 0/669 dead transitions. [2025-02-06 09:27:28,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 660 places, 669 transitions, 1473 flow [2025-02-06 09:27:28,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:27:28,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:27:28,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1945 transitions. [2025-02-06 09:27:28,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9248692344270091 [2025-02-06 09:27:28,569 INFO L175 Difference]: Start difference. First operand has 663 places, 701 transitions, 1441 flow. Second operand 3 states and 1945 transitions. [2025-02-06 09:27:28,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 660 places, 669 transitions, 1473 flow [2025-02-06 09:27:28,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 669 transitions, 1473 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:27:28,625 INFO L231 Difference]: Finished difference. Result has 660 places, 669 transitions, 1381 flow [2025-02-06 09:27:28,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=701, PETRI_DIFFERENCE_MINUEND_FLOW=1377, PETRI_DIFFERENCE_MINUEND_PLACES=658, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=669, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=667, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1381, PETRI_PLACES=660, PETRI_TRANSITIONS=669} [2025-02-06 09:27:28,638 INFO L279 CegarLoopForPetriNet]: 663 programPoint places, -3 predicate places. [2025-02-06 09:27:28,638 INFO L471 AbstractCegarLoop]: Abstraction has has 660 places, 669 transitions, 1381 flow [2025-02-06 09:27:28,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 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 09:27:28,640 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:28,640 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:27:28,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:27:28,644 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2025-02-06 09:27:28,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:28,645 INFO L85 PathProgramCache]: Analyzing trace with hash 76539387, now seen corresponding path program 1 times [2025-02-06 09:27:28,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:28,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179343321] [2025-02-06 09:27:28,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:28,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:28,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-06 09:27:28,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-06 09:27:28,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:28,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:28,714 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 09:27:28,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:28,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179343321] [2025-02-06 09:27:28,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179343321] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:28,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:28,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:27:28,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453213612] [2025-02-06 09:27:28,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:28,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:27:28,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:28,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:27:28,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:27:28,750 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 701 [2025-02-06 09:27:28,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 660 places, 669 transitions, 1381 flow. Second operand has 3 states, 3 states have (on average 622.0) internal successors, (1866), 3 states have internal predecessors, (1866), 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 09:27:28,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:28,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 701 [2025-02-06 09:27:28,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand