./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f 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_04-munge_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 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:32:28,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:32:28,676 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:32:28,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:32:28,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:32:28,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:32:28,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:32:28,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:32:28,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:32:28,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:32:28,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:32:28,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:32:28,708 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:32:28,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:32:28,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:32:28,709 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:32:28,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:32:28,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:32:28,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:32:28,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:32:28,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:32:28,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:32:28,711 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:32:28,711 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:32:28,711 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:32:28,712 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:32:28,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:32:28,712 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:32:28,712 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:32:28,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:32:28,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:32:28,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:32:28,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:32:28,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:32:28,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:32:28,714 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:32:28,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:32:28,714 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:32:28,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:32:28,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:32:28,715 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:32:28,715 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b [2024-11-10 14:32:28,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:32:28,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:32:28,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:32:28,927 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:32:28,930 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:32:28,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2024-11-10 14:32:30,142 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:32:30,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:32:30,353 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2024-11-10 14:32:30,369 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f239a7b7e/220674f10750448cba2a7802570960fe/FLAG946d9f014 [2024-11-10 14:32:30,380 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f239a7b7e/220674f10750448cba2a7802570960fe [2024-11-10 14:32:30,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:32:30,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:32:30,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:32:30,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:32:30,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:32:30,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18953fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30, skipping insertion in model container [2024-11-10 14:32:30,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,422 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:32:30,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:32:30,763 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:32:30,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:32:30,834 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:32:30,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30 WrapperNode [2024-11-10 14:32:30,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:32:30,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:32:30,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:32:30,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:32:30,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,874 INFO L138 Inliner]: procedures = 173, calls = 42, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 310 [2024-11-10 14:32:30,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:32:30,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:32:30,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:32:30,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:32:30,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,895 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:32:30,904 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:32:30,904 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:32:30,904 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:32:30,905 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (1/1) ... [2024-11-10 14:32:30,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:32:30,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:32:30,933 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) [2024-11-10 14:32:30,934 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 [2024-11-10 14:32:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:32:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-10 14:32:30,967 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-10 14:32:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:32:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:32:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:32:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:32:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-10 14:32:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-10 14:32:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:32:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:32:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:32:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:32:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:32:30,970 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:32:31,102 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:32:31,104 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:32:31,399 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L714: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2024-11-10 14:32:31,400 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2024-11-10 14:32:31,400 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2024-11-10 14:32:31,400 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-3: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2024-11-10 14:32:31,471 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:32:31,471 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:32:31,517 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:32:31,517 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:32:31,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:32:31 BoogieIcfgContainer [2024-11-10 14:32:31,518 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:32:31,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:32:31,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:32:31,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:32:31,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:32:30" (1/3) ... [2024-11-10 14:32:31,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13805675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:32:31, skipping insertion in model container [2024-11-10 14:32:31,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:30" (2/3) ... [2024-11-10 14:32:31,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13805675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:32:31, skipping insertion in model container [2024-11-10 14:32:31,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:32:31" (3/3) ... [2024-11-10 14:32:31,526 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_04-munge_racefree.i [2024-11-10 14:32:31,542 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:32:31,542 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-10 14:32:31,542 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:32:31,618 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-10 14:32:31,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 313 places, 342 transitions, 704 flow [2024-11-10 14:32:31,819 INFO L124 PetriNetUnfolderBase]: 61/614 cut-off events. [2024-11-10 14:32:31,819 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-10 14:32:31,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 614 events. 61/614 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2834 event pairs, 0 based on Foata normal form. 0/518 useless extension candidates. Maximal degree in co-relation 312. Up to 8 conditions per place. [2024-11-10 14:32:31,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 313 places, 342 transitions, 704 flow [2024-11-10 14:32:31,839 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 313 places, 342 transitions, 704 flow [2024-11-10 14:32:31,847 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:32:31,853 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;@4718d945, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:32:31,854 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-10 14:32:31,865 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:32:31,866 INFO L124 PetriNetUnfolderBase]: 3/115 cut-off events. [2024-11-10 14:32:31,866 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:32:31,866 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:32:31,867 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, 1, 1, 1, 1, 1] [2024-11-10 14:32:31,867 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:32:31,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:32:31,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2063596689, now seen corresponding path program 1 times [2024-11-10 14:32:31,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:32:31,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37863312] [2024-11-10 14:32:31,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:32:31,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:32:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:32:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:32:32,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:32:32,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37863312] [2024-11-10 14:32:32,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37863312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:32:32,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:32:32,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:32:32,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367169538] [2024-11-10 14:32:32,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:32:32,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:32:32,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:32:32,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:32:32,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:32:32,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 342 [2024-11-10 14:32:32,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 342 transitions, 704 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) [2024-11-10 14:32:32,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:32:32,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 342 [2024-11-10 14:32:32,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:32:34,624 INFO L124 PetriNetUnfolderBase]: 2628/15479 cut-off events. [2024-11-10 14:32:34,624 INFO L125 PetriNetUnfolderBase]: For 130/137 co-relation queries the response was YES. [2024-11-10 14:32:34,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19598 conditions, 15479 events. 2628/15479 cut-off events. For 130/137 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 199295 event pairs, 2367 based on Foata normal form. 3933/17939 useless extension candidates. Maximal degree in co-relation 17731. Up to 3955 conditions per place. [2024-11-10 14:32:34,703 INFO L140 encePairwiseOnDemand]: 308/342 looper letters, 74 selfloop transitions, 5 changer transitions 0/341 dead transitions. [2024-11-10 14:32:34,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 341 transitions, 860 flow [2024-11-10 14:32:34,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:32:34,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:32:34,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1740 transitions. [2024-11-10 14:32:34,720 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.847953216374269 [2024-11-10 14:32:34,721 INFO L175 Difference]: Start difference. First operand has 313 places, 342 transitions, 704 flow. Second operand 6 states and 1740 transitions. [2024-11-10 14:32:34,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 341 transitions, 860 flow [2024-11-10 14:32:34,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 341 transitions, 860 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:32:34,733 INFO L231 Difference]: Finished difference. Result has 313 places, 309 transitions, 648 flow [2024-11-10 14:32:34,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=648, PETRI_PLACES=313, PETRI_TRANSITIONS=309} [2024-11-10 14:32:34,737 INFO L277 CegarLoopForPetriNet]: 313 programPoint places, 0 predicate places. [2024-11-10 14:32:34,738 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 309 transitions, 648 flow [2024-11-10 14:32:34,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2024-11-10 14:32:34,739 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:32:34,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:32:34,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:32:34,740 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:32:34,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:32:34,741 INFO L85 PathProgramCache]: Analyzing trace with hash 2060401528, now seen corresponding path program 1 times [2024-11-10 14:32:34,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:32:34,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820064297] [2024-11-10 14:32:34,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:32:34,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:32:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:32:34,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:32:34,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:32:34,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820064297] [2024-11-10 14:32:34,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820064297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:32:34,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:32:34,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:32:34,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882989435] [2024-11-10 14:32:34,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:32:34,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:32:34,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:32:34,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:32:34,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:32:34,839 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 342 [2024-11-10 14:32:34,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 309 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 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) [2024-11-10 14:32:34,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:32:34,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 342 [2024-11-10 14:32:34,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:32:35,115 INFO L124 PetriNetUnfolderBase]: 334/3146 cut-off events. [2024-11-10 14:32:35,115 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-11-10 14:32:35,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3775 conditions, 3146 events. 334/3146 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 28948 event pairs, 280 based on Foata normal form. 1/2820 useless extension candidates. Maximal degree in co-relation 3552. Up to 538 conditions per place. [2024-11-10 14:32:35,136 INFO L140 encePairwiseOnDemand]: 339/342 looper letters, 34 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2024-11-10 14:32:35,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 317 transitions, 736 flow [2024-11-10 14:32:35,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:32:35,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:32:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 889 transitions. [2024-11-10 14:32:35,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8664717348927875 [2024-11-10 14:32:35,138 INFO L175 Difference]: Start difference. First operand has 313 places, 309 transitions, 648 flow. Second operand 3 states and 889 transitions. [2024-11-10 14:32:35,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 317 transitions, 736 flow [2024-11-10 14:32:35,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 317 transitions, 726 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:32:35,146 INFO L231 Difference]: Finished difference. Result has 311 places, 309 transitions, 646 flow [2024-11-10 14:32:35,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=311, PETRI_TRANSITIONS=309} [2024-11-10 14:32:35,148 INFO L277 CegarLoopForPetriNet]: 313 programPoint places, -2 predicate places. [2024-11-10 14:32:35,148 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 309 transitions, 646 flow [2024-11-10 14:32:35,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 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) [2024-11-10 14:32:35,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:32:35,150 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:32:35,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:32:35,150 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:32:35,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:32:35,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1561152395, now seen corresponding path program 1 times [2024-11-10 14:32:35,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:32:35,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889365137] [2024-11-10 14:32:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:32:35,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:32:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:32:35,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:32:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:32:35,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:32:35,238 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:32:35,239 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-10 14:32:35,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-10 14:32:35,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-10 14:32:35,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-10 14:32:35,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-10 14:32:35,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-10 14:32:35,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-11-10 14:32:35,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-10 14:32:35,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-10 14:32:35,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-10 14:32:35,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2024-11-10 14:32:35,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-10 14:32:35,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-10 14:32:35,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-10 14:32:35,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-10 14:32:35,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-10 14:32:35,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-10 14:32:35,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-10 14:32:35,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-10 14:32:35,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-10 14:32:35,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-10 14:32:35,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-10 14:32:35,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-10 14:32:35,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-10 14:32:35,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-10 14:32:35,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-10 14:32:35,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:32:35,246 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-10 14:32:35,250 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:32:35,250 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 14:32:35,320 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-10 14:32:35,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 522 transitions, 1088 flow [2024-11-10 14:32:35,653 INFO L124 PetriNetUnfolderBase]: 205/1691 cut-off events. [2024-11-10 14:32:35,653 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-10 14:32:35,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1780 conditions, 1691 events. 205/1691 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10752 event pairs, 1 based on Foata normal form. 0/1415 useless extension candidates. Maximal degree in co-relation 1050. Up to 32 conditions per place. [2024-11-10 14:32:35,674 INFO L82 GeneralOperation]: Start removeDead. Operand has 467 places, 522 transitions, 1088 flow [2024-11-10 14:32:35,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 467 places, 522 transitions, 1088 flow [2024-11-10 14:32:35,689 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:32:35,690 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;@4718d945, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:32:35,690 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-10 14:32:35,697 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:32:35,698 INFO L124 PetriNetUnfolderBase]: 3/115 cut-off events. [2024-11-10 14:32:35,698 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:32:35,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:32:35,698 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, 1, 1, 1, 1, 1] [2024-11-10 14:32:35,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-10 14:32:35,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:32:35,699 INFO L85 PathProgramCache]: Analyzing trace with hash -514273127, now seen corresponding path program 1 times [2024-11-10 14:32:35,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:32:35,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794331183] [2024-11-10 14:32:35,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:32:35,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:32:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:32:36,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:32:36,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:32:36,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794331183] [2024-11-10 14:32:36,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794331183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:32:36,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:32:36,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:32:36,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047068408] [2024-11-10 14:32:36,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:32:36,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:32:36,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:32:36,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:32:36,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:32:36,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 522 [2024-11-10 14:32:36,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 522 transitions, 1088 flow. Second operand has 6 states, 6 states have (on average 397.5) internal successors, (2385), 6 states have internal predecessors, (2385), 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) [2024-11-10 14:32:36,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:32:36,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 522 [2024-11-10 14:32:36,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand