./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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_82-list_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:41:27,269 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:41:27,335 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:41:27,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:41:27,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:41:27,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:41:27,389 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:41:27,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:41:27,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:41:27,392 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:41:27,392 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:41:27,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:41:27,393 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:41:27,393 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:41:27,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:41:27,394 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:41:27,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:41:27,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:41:27,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:41:27,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:41:27,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:41:27,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:41:27,403 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:41:27,403 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:41:27,403 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:41:27,403 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:41:27,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:41:27,404 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:41:27,404 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:41:27,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:41:27,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:41:27,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:41:27,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:41:27,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:41:27,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:41:27,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:41:27,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:41:27,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:41:27,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:41:27,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:41:27,419 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:41:27,420 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 [2024-11-16 23:41:27,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:41:27,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:41:27,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:41:27,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:41:27,739 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:41:27,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-11-16 23:41:29,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:41:29,567 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:41:29,567 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-11-16 23:41:29,592 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1ab36ed5/3f737c8e6aaa4f24aebb7969b8305bc1/FLAG6303316cf [2024-11-16 23:41:29,609 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1ab36ed5/3f737c8e6aaa4f24aebb7969b8305bc1 [2024-11-16 23:41:29,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:41:29,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:41:29,619 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:41:29,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:41:29,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:41:29,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:29" (1/1) ... [2024-11-16 23:41:29,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ab5c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:29, skipping insertion in model container [2024-11-16 23:41:29,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:29" (1/1) ... [2024-11-16 23:41:29,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:41:30,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:41:30,292 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:41:30,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:41:30,418 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:41:30,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30 WrapperNode [2024-11-16 23:41:30,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:41:30,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:41:30,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:41:30,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:41:30,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (1/1) ... [2024-11-16 23:41:30,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (1/1) ... [2024-11-16 23:41:30,514 INFO L138 Inliner]: procedures = 279, calls = 68, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 332 [2024-11-16 23:41:30,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:41:30,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:41:30,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:41:30,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:41:30,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (1/1) ... [2024-11-16 23:41:30,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (1/1) ... [2024-11-16 23:41:30,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (1/1) ... [2024-11-16 23:41:30,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (1/1) ... [2024-11-16 23:41:30,552 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (1/1) ... [2024-11-16 23:41:30,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (1/1) ... [2024-11-16 23:41:30,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (1/1) ... [2024-11-16 23:41:30,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (1/1) ... [2024-11-16 23:41:30,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:41:30,564 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:41:30,565 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:41:30,565 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:41:30,566 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (1/1) ... [2024-11-16 23:41:30,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:41:30,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:30,604 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) [2024-11-16 23:41:30,606 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 [2024-11-16 23:41:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:41:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-16 23:41:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-16 23:41:30,648 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-16 23:41:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:41:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:41:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:41:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-16 23:41:30,649 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-16 23:41:30,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:41:30,649 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:41:30,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:41:30,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:41:30,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-16 23:41:30,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:41:30,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:41:30,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:41:30,651 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:41:30,798 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:41:30,800 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:41:31,430 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1044: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2024-11-16 23:41:31,430 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1044-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2024-11-16 23:41:31,431 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1045: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2024-11-16 23:41:31,431 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1045-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2024-11-16 23:41:31,432 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:41:31,432 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:41:31,480 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:41:31,482 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:41:31,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:41:31 BoogieIcfgContainer [2024-11-16 23:41:31,483 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:41:31,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:41:31,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:41:31,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:41:31,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:41:29" (1/3) ... [2024-11-16 23:41:31,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24836ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:41:31, skipping insertion in model container [2024-11-16 23:41:31,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:30" (2/3) ... [2024-11-16 23:41:31,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24836ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:41:31, skipping insertion in model container [2024-11-16 23:41:31,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:41:31" (3/3) ... [2024-11-16 23:41:31,494 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_82-list_racefree.i [2024-11-16 23:41:31,511 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:41:31,511 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-16 23:41:31,511 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:41:31,637 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-16 23:41:31,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 354 places, 373 transitions, 766 flow [2024-11-16 23:41:32,034 INFO L124 PetriNetUnfolderBase]: 54/710 cut-off events. [2024-11-16 23:41:32,034 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-16 23:41:32,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 710 events. 54/710 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3218 event pairs, 0 based on Foata normal form. 0/608 useless extension candidates. Maximal degree in co-relation 356. Up to 8 conditions per place. [2024-11-16 23:41:32,056 INFO L82 GeneralOperation]: Start removeDead. Operand has 354 places, 373 transitions, 766 flow [2024-11-16 23:41:32,068 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 354 places, 373 transitions, 766 flow [2024-11-16 23:41:32,079 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:41:32,088 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;@3b0fa833, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:41:32,088 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-16 23:41:32,093 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:41:32,094 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2024-11-16 23:41:32,094 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:41:32,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:32,095 INFO L204 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] [2024-11-16 23:41:32,096 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:32,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:32,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2113424758, now seen corresponding path program 1 times [2024-11-16 23:41:32,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:32,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717952364] [2024-11-16 23:41:32,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:32,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:32,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:32,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:32,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717952364] [2024-11-16 23:41:32,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717952364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:32,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:32,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:41:32,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159226973] [2024-11-16 23:41:32,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:32,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:41:32,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:32,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:41:32,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:41:32,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 373 [2024-11-16 23:41:32,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 373 transitions, 766 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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) [2024-11-16 23:41:32,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:32,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 373 [2024-11-16 23:41:32,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:33,244 INFO L124 PetriNetUnfolderBase]: 210/2497 cut-off events. [2024-11-16 23:41:33,244 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-11-16 23:41:33,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2885 conditions, 2497 events. 210/2497 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 19413 event pairs, 158 based on Foata normal form. 342/2606 useless extension candidates. Maximal degree in co-relation 1974. Up to 333 conditions per place. [2024-11-16 23:41:33,271 INFO L140 encePairwiseOnDemand]: 353/373 looper letters, 25 selfloop transitions, 2 changer transitions 0/353 dead transitions. [2024-11-16 23:41:33,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 353 transitions, 780 flow [2024-11-16 23:41:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:33,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:33,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1026 transitions. [2024-11-16 23:41:33,294 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9168900804289544 [2024-11-16 23:41:33,299 INFO L175 Difference]: Start difference. First operand has 354 places, 373 transitions, 766 flow. Second operand 3 states and 1026 transitions. [2024-11-16 23:41:33,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 353 transitions, 780 flow [2024-11-16 23:41:33,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 353 transitions, 780 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:41:33,316 INFO L231 Difference]: Finished difference. Result has 353 places, 353 transitions, 730 flow [2024-11-16 23:41:33,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=730, PETRI_PLACES=353, PETRI_TRANSITIONS=353} [2024-11-16 23:41:33,324 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, -1 predicate places. [2024-11-16 23:41:33,324 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 353 transitions, 730 flow [2024-11-16 23:41:33,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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) [2024-11-16 23:41:33,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:33,326 INFO L204 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] [2024-11-16 23:41:33,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:41:33,326 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:33,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:33,327 INFO L85 PathProgramCache]: Analyzing trace with hash 105438675, now seen corresponding path program 1 times [2024-11-16 23:41:33,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:33,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155284173] [2024-11-16 23:41:33,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:33,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:33,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:33,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155284173] [2024-11-16 23:41:33,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155284173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:33,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:33,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:41:33,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322270326] [2024-11-16 23:41:33,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:33,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:41:33,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:33,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:41:33,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:41:33,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 373 [2024-11-16 23:41:33,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 353 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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) [2024-11-16 23:41:33,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:33,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 373 [2024-11-16 23:41:33,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:34,069 INFO L124 PetriNetUnfolderBase]: 118/2043 cut-off events. [2024-11-16 23:41:34,069 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-16 23:41:34,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2322 conditions, 2043 events. 118/2043 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 13331 event pairs, 84 based on Foata normal form. 0/1850 useless extension candidates. Maximal degree in co-relation 2277. Up to 213 conditions per place. [2024-11-16 23:41:34,093 INFO L140 encePairwiseOnDemand]: 369/373 looper letters, 24 selfloop transitions, 1 changer transitions 0/350 dead transitions. [2024-11-16 23:41:34,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 350 transitions, 774 flow [2024-11-16 23:41:34,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:34,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:34,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1009 transitions. [2024-11-16 23:41:34,097 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9016979445933869 [2024-11-16 23:41:34,097 INFO L175 Difference]: Start difference. First operand has 353 places, 353 transitions, 730 flow. Second operand 3 states and 1009 transitions. [2024-11-16 23:41:34,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 350 transitions, 774 flow [2024-11-16 23:41:34,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 350 transitions, 770 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:41:34,107 INFO L231 Difference]: Finished difference. Result has 350 places, 350 transitions, 722 flow [2024-11-16 23:41:34,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=350, PETRI_TRANSITIONS=350} [2024-11-16 23:41:34,109 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, -4 predicate places. [2024-11-16 23:41:34,110 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 350 transitions, 722 flow [2024-11-16 23:41:34,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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) [2024-11-16 23:41:34,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:34,112 INFO L204 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] [2024-11-16 23:41:34,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:41:34,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:34,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:34,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1607190615, now seen corresponding path program 1 times [2024-11-16 23:41:34,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:34,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556210440] [2024-11-16 23:41:34,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:34,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:34,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556210440] [2024-11-16 23:41:34,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556210440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:34,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:34,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:41:34,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646875932] [2024-11-16 23:41:34,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:34,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:41:34,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:34,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:41:34,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:41:35,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 373 [2024-11-16 23:41:35,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 350 transitions, 722 flow. Second operand has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 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) [2024-11-16 23:41:35,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:35,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 373 [2024-11-16 23:41:35,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:44,268 INFO L124 PetriNetUnfolderBase]: 23485/63556 cut-off events. [2024-11-16 23:41:44,268 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-11-16 23:41:44,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99449 conditions, 63556 events. 23485/63556 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1140. Compared 757662 event pairs, 22570 based on Foata normal form. 0/59335 useless extension candidates. Maximal degree in co-relation 99405. Up to 35705 conditions per place. [2024-11-16 23:41:44,758 INFO L140 encePairwiseOnDemand]: 367/373 looper letters, 87 selfloop transitions, 5 changer transitions 0/349 dead transitions. [2024-11-16 23:41:44,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 349 transitions, 904 flow [2024-11-16 23:41:44,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:41:44,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:41:44,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1665 transitions. [2024-11-16 23:41:44,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7439678284182306 [2024-11-16 23:41:44,764 INFO L175 Difference]: Start difference. First operand has 350 places, 350 transitions, 722 flow. Second operand 6 states and 1665 transitions. [2024-11-16 23:41:44,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 349 transitions, 904 flow [2024-11-16 23:41:44,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 349 transitions, 903 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:41:44,772 INFO L231 Difference]: Finished difference. Result has 353 places, 349 transitions, 729 flow [2024-11-16 23:41:44,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=729, PETRI_PLACES=353, PETRI_TRANSITIONS=349} [2024-11-16 23:41:44,775 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, -1 predicate places. [2024-11-16 23:41:44,775 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 349 transitions, 729 flow [2024-11-16 23:41:44,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 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) [2024-11-16 23:41:44,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:44,777 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:44,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:41:44,777 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:44,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:44,779 INFO L85 PathProgramCache]: Analyzing trace with hash -822142323, now seen corresponding path program 1 times [2024-11-16 23:41:44,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:44,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011950315] [2024-11-16 23:41:44,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:44,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:45,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:45,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:45,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011950315] [2024-11-16 23:41:45,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011950315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:45,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:45,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:41:45,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35473092] [2024-11-16 23:41:45,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:45,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:41:45,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:45,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:41:45,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:41:45,779 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 373 [2024-11-16 23:41:45,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 349 transitions, 729 flow. Second operand has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 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) [2024-11-16 23:41:45,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:45,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 373 [2024-11-16 23:41:45,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:53,618 INFO L124 PetriNetUnfolderBase]: 23485/63555 cut-off events. [2024-11-16 23:41:53,618 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-11-16 23:41:53,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99453 conditions, 63555 events. 23485/63555 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1140. Compared 757758 event pairs, 22570 based on Foata normal form. 0/59335 useless extension candidates. Maximal degree in co-relation 99409. Up to 35705 conditions per place. [2024-11-16 23:41:54,360 INFO L140 encePairwiseOnDemand]: 367/373 looper letters, 87 selfloop transitions, 5 changer transitions 0/348 dead transitions. [2024-11-16 23:41:54,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 348 transitions, 911 flow [2024-11-16 23:41:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:41:54,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:41:54,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1665 transitions. [2024-11-16 23:41:54,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7439678284182306 [2024-11-16 23:41:54,365 INFO L175 Difference]: Start difference. First operand has 353 places, 349 transitions, 729 flow. Second operand 6 states and 1665 transitions. [2024-11-16 23:41:54,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 348 transitions, 911 flow [2024-11-16 23:41:54,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 348 transitions, 901 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:41:54,374 INFO L231 Difference]: Finished difference. Result has 352 places, 348 transitions, 727 flow [2024-11-16 23:41:54,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=727, PETRI_PLACES=352, PETRI_TRANSITIONS=348} [2024-11-16 23:41:54,375 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, -2 predicate places. [2024-11-16 23:41:54,376 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 348 transitions, 727 flow [2024-11-16 23:41:54,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 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) [2024-11-16 23:41:54,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:54,377 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:54,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:41:54,378 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:54,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:54,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1882789519, now seen corresponding path program 1 times [2024-11-16 23:41:54,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:54,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375680789] [2024-11-16 23:41:54,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:54,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:54,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:54,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:54,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375680789] [2024-11-16 23:41:54,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375680789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:54,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:54,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:41:54,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730186900] [2024-11-16 23:41:54,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:54,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:41:54,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:54,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:41:54,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:41:55,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 373 [2024-11-16 23:41:55,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 348 transitions, 727 flow. Second operand has 6 states, 6 states have (on average 257.8333333333333) internal successors, (1547), 6 states have internal predecessors, (1547), 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) [2024-11-16 23:41:55,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:55,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 373 [2024-11-16 23:41:55,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:04,776 INFO L124 PetriNetUnfolderBase]: 27478/73654 cut-off events. [2024-11-16 23:42:04,776 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-11-16 23:42:04,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115550 conditions, 73654 events. 27478/73654 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1453. Compared 906390 event pairs, 26131 based on Foata normal form. 0/68650 useless extension candidates. Maximal degree in co-relation 115505. Up to 41555 conditions per place. [2024-11-16 23:42:05,304 INFO L140 encePairwiseOnDemand]: 346/373 looper letters, 107 selfloop transitions, 86 changer transitions 0/441 dead transitions. [2024-11-16 23:42:05,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 441 transitions, 1299 flow [2024-11-16 23:42:05,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:42:05,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:42:05,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1724 transitions. [2024-11-16 23:42:05,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7703306523681859 [2024-11-16 23:42:05,310 INFO L175 Difference]: Start difference. First operand has 352 places, 348 transitions, 727 flow. Second operand 6 states and 1724 transitions. [2024-11-16 23:42:05,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 441 transitions, 1299 flow [2024-11-16 23:42:05,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 441 transitions, 1289 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:42:05,331 INFO L231 Difference]: Finished difference. Result has 357 places, 433 transitions, 1283 flow [2024-11-16 23:42:05,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1283, PETRI_PLACES=357, PETRI_TRANSITIONS=433} [2024-11-16 23:42:05,335 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, 3 predicate places. [2024-11-16 23:42:05,336 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 433 transitions, 1283 flow [2024-11-16 23:42:05,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.8333333333333) internal successors, (1547), 6 states have internal predecessors, (1547), 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) [2024-11-16 23:42:05,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:05,338 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:42:05,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:42:05,341 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:42:05,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:05,342 INFO L85 PathProgramCache]: Analyzing trace with hash 867664933, now seen corresponding path program 1 times [2024-11-16 23:42:05,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:05,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401921835] [2024-11-16 23:42:05,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:05,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:05,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:05,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:05,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401921835] [2024-11-16 23:42:05,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401921835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:05,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:05,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:42:05,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677344826] [2024-11-16 23:42:05,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:05,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:42:05,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:05,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:42:05,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:42:05,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 373 [2024-11-16 23:42:05,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 433 transitions, 1283 flow. Second operand has 3 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 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) [2024-11-16 23:42:05,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:05,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 373 [2024-11-16 23:42:05,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:05,997 INFO L124 PetriNetUnfolderBase]: 329/2513 cut-off events. [2024-11-16 23:42:05,997 INFO L125 PetriNetUnfolderBase]: For 229/250 co-relation queries the response was YES. [2024-11-16 23:42:06,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3457 conditions, 2513 events. 329/2513 cut-off events. For 229/250 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 18363 event pairs, 114 based on Foata normal form. 1/2320 useless extension candidates. Maximal degree in co-relation 3408. Up to 251 conditions per place. [2024-11-16 23:42:06,027 INFO L140 encePairwiseOnDemand]: 370/373 looper letters, 24 selfloop transitions, 3 changer transitions 0/435 dead transitions. [2024-11-16 23:42:06,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 435 transitions, 1341 flow [2024-11-16 23:42:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:42:06,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:42:06,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1020 transitions. [2024-11-16 23:42:06,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9115281501340483 [2024-11-16 23:42:06,032 INFO L175 Difference]: Start difference. First operand has 357 places, 433 transitions, 1283 flow. Second operand 3 states and 1020 transitions. [2024-11-16 23:42:06,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 435 transitions, 1341 flow [2024-11-16 23:42:06,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 435 transitions, 1341 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:42:06,047 INFO L231 Difference]: Finished difference. Result has 360 places, 433 transitions, 1294 flow [2024-11-16 23:42:06,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1294, PETRI_PLACES=360, PETRI_TRANSITIONS=433} [2024-11-16 23:42:06,050 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, 6 predicate places. [2024-11-16 23:42:06,051 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 433 transitions, 1294 flow [2024-11-16 23:42:06,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 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) [2024-11-16 23:42:06,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:06,052 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:42:06,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:42:06,053 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1_funErr5ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:42:06,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:06,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1706702704, now seen corresponding path program 1 times [2024-11-16 23:42:06,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:06,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488042686] [2024-11-16 23:42:06,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:06,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:06,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:06,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488042686] [2024-11-16 23:42:06,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488042686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:06,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:06,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:42:06,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847981621] [2024-11-16 23:42:06,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:06,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:42:06,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:06,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:42:06,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:42:07,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 373 [2024-11-16 23:42:07,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 433 transitions, 1294 flow. Second operand has 6 states, 6 states have (on average 265.5) internal successors, (1593), 6 states have internal predecessors, (1593), 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) [2024-11-16 23:42:07,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:07,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 373 [2024-11-16 23:42:07,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand