./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_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 ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:03:37,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:03:37,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 22:03:37,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:03:37,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:03:37,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:03:37,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:03:37,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:03:37,704 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:03:37,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:03:37,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:03:37,705 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:03:37,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:03:37,708 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:03:37,708 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:03:37,708 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:03:37,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:03:37,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:03:37,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:03:37,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:03:37,709 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:03:37,709 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 22:03:37,709 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 22:03:37,709 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:03:37,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:03:37,709 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:03:37,709 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:03:37,709 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:03:37,709 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:03:37,709 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2025-03-08 22:03:37,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:03:37,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:03:37,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:03:37,978 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:03:37,978 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:03:37,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2025-03-08 22:03:39,096 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63048469d/7724301be6d84f50b110c76108435c61/FLAG9e77abdb2 [2025-03-08 22:03:39,382 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:03:39,382 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2025-03-08 22:03:39,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63048469d/7724301be6d84f50b110c76108435c61/FLAG9e77abdb2 [2025-03-08 22:03:39,418 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63048469d/7724301be6d84f50b110c76108435c61 [2025-03-08 22:03:39,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:03:39,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:03:39,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:03:39,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:03:39,429 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:03:39,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:39,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52cbabb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39, skipping insertion in model container [2025-03-08 22:03:39,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:39,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:03:39,751 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-08 22:03:39,752 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-08 22:03:39,752 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-08 22:03:39,753 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-08 22:03:39,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:03:39,803 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:03:39,857 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-08 22:03:39,859 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-08 22:03:39,860 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-08 22:03:39,860 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-08 22:03:39,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:03:39,924 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:03:39,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39 WrapperNode [2025-03-08 22:03:39,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:03:39,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:03:39,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:03:39,927 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:03:39,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:39,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:39,990 INFO L138 Inliner]: procedures = 279, calls = 120, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 360 [2025-03-08 22:03:39,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:03:39,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:03:39,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:03:39,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:03:39,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:39,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:40,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:40,008 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:40,035 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:40,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:40,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:40,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:40,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:03:40,054 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:03:40,054 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:03:40,054 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:03:40,055 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (1/1) ... [2025-03-08 22:03:40,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:03:40,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:03:40,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 22:03:40,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 22:03:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:03:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-08 22:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-08 22:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 22:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 22:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 22:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 22:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-08 22:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-08 22:03:40,107 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-08 22:03:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 22:03:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:03:40,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:03:40,108 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 22:03:40,232 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:03:40,233 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:03:40,651 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1061: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-03-08 22:03:40,651 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1061-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-03-08 22:03:40,783 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 22:03:40,783 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:03:40,816 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:03:40,818 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:03:40,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:03:40 BoogieIcfgContainer [2025-03-08 22:03:40,818 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:03:40,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:03:40,820 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:03:40,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:03:40,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:03:39" (1/3) ... [2025-03-08 22:03:40,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8ff37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:03:40, skipping insertion in model container [2025-03-08 22:03:40,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:39" (2/3) ... [2025-03-08 22:03:40,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8ff37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:03:40, skipping insertion in model container [2025-03-08 22:03:40,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:03:40" (3/3) ... [2025-03-08 22:03:40,827 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2025-03-08 22:03:40,837 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:03:40,838 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_91-arrayloop2_racefree.i that has 2 procedures, 382 locations, 1 initial locations, 10 loop locations, and 19 error locations. [2025-03-08 22:03:40,839 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 22:03:40,944 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-08 22:03:40,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 385 places, 401 transitions, 809 flow [2025-03-08 22:03:41,091 INFO L124 PetriNetUnfolderBase]: 19/431 cut-off events. [2025-03-08 22:03:41,093 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 22:03:41,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 431 events. 19/431 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 959 event pairs, 0 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 251. Up to 4 conditions per place. [2025-03-08 22:03:41,098 INFO L82 GeneralOperation]: Start removeDead. Operand has 385 places, 401 transitions, 809 flow [2025-03-08 22:03:41,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 385 places, 401 transitions, 809 flow [2025-03-08 22:03:41,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:03:41,118 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;@7a9576d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:03:41,118 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2025-03-08 22:03:41,141 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:03:41,143 INFO L124 PetriNetUnfolderBase]: 0/118 cut-off events. [2025-03-08 22:03:41,143 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:03:41,143 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:41,144 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:41,144 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:41,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:41,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1818822606, now seen corresponding path program 1 times [2025-03-08 22:03:41,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:41,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991930768] [2025-03-08 22:03:41,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:41,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:41,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-08 22:03:41,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-08 22:03:41,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:41,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:42,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:42,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991930768] [2025-03-08 22:03:42,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991930768] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:42,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:42,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:42,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344676060] [2025-03-08 22:03:42,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:42,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:42,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:42,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:42,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:42,507 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 401 [2025-03-08 22:03:42,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 401 transitions, 809 flow. Second operand has 6 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:42,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:42,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 401 [2025-03-08 22:03:42,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:42,769 INFO L124 PetriNetUnfolderBase]: 319/1593 cut-off events. [2025-03-08 22:03:42,769 INFO L125 PetriNetUnfolderBase]: For 15/23 co-relation queries the response was YES. [2025-03-08 22:03:42,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2283 conditions, 1593 events. 319/1593 cut-off events. For 15/23 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10011 event pairs, 288 based on Foata normal form. 77/1540 useless extension candidates. Maximal degree in co-relation 1963. Up to 674 conditions per place. [2025-03-08 22:03:42,780 INFO L140 encePairwiseOnDemand]: 376/401 looper letters, 80 selfloop transitions, 10 changer transitions 0/384 dead transitions. [2025-03-08 22:03:42,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 384 transitions, 955 flow [2025-03-08 22:03:42,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:42,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:42,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1875 transitions. [2025-03-08 22:03:42,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7793017456359103 [2025-03-08 22:03:42,805 INFO L175 Difference]: Start difference. First operand has 385 places, 401 transitions, 809 flow. Second operand 6 states and 1875 transitions. [2025-03-08 22:03:42,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 384 transitions, 955 flow [2025-03-08 22:03:42,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 384 transitions, 955 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:03:42,818 INFO L231 Difference]: Finished difference. Result has 386 places, 384 transitions, 795 flow [2025-03-08 22:03:42,822 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=795, PETRI_PLACES=386, PETRI_TRANSITIONS=384} [2025-03-08 22:03:42,826 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 1 predicate places. [2025-03-08 22:03:42,826 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 384 transitions, 795 flow [2025-03-08 22:03:42,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:42,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:42,828 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:42,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:03:42,828 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:42,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:42,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2140736471, now seen corresponding path program 1 times [2025-03-08 22:03:42,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:42,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761659822] [2025-03-08 22:03:42,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:42,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:42,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 22:03:42,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 22:03:42,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:42,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:42,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:42,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761659822] [2025-03-08 22:03:42,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761659822] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:42,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:42,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:03:42,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186153982] [2025-03-08 22:03:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:42,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:03:42,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:42,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:03:42,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:03:42,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 401 [2025-03-08 22:03:42,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 384 transitions, 795 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:42,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:42,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 401 [2025-03-08 22:03:42,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:43,024 INFO L124 PetriNetUnfolderBase]: 15/564 cut-off events. [2025-03-08 22:03:43,024 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2025-03-08 22:03:43,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 625 conditions, 564 events. 15/564 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1680 event pairs, 8 based on Foata normal form. 1/521 useless extension candidates. Maximal degree in co-relation 402. Up to 34 conditions per place. [2025-03-08 22:03:43,029 INFO L140 encePairwiseOnDemand]: 398/401 looper letters, 15 selfloop transitions, 2 changer transitions 0/385 dead transitions. [2025-03-08 22:03:43,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 385 transitions, 831 flow [2025-03-08 22:03:43,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:03:43,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:03:43,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1131 transitions. [2025-03-08 22:03:43,035 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.940149625935162 [2025-03-08 22:03:43,035 INFO L175 Difference]: Start difference. First operand has 386 places, 384 transitions, 795 flow. Second operand 3 states and 1131 transitions. [2025-03-08 22:03:43,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 385 transitions, 831 flow [2025-03-08 22:03:43,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 385 transitions, 811 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:03:43,058 INFO L231 Difference]: Finished difference. Result has 384 places, 385 transitions, 787 flow [2025-03-08 22:03:43,058 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=787, PETRI_PLACES=384, PETRI_TRANSITIONS=385} [2025-03-08 22:03:43,059 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, -1 predicate places. [2025-03-08 22:03:43,059 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 385 transitions, 787 flow [2025-03-08 22:03:43,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:43,061 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:43,061 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:43,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:03:43,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:43,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:43,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1993860760, now seen corresponding path program 1 times [2025-03-08 22:03:43,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:43,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038761770] [2025-03-08 22:03:43,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:43,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:43,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-08 22:03:43,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-08 22:03:43,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:43,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:43,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:43,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:43,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038761770] [2025-03-08 22:03:43,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038761770] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:43,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:43,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:43,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629861233] [2025-03-08 22:03:43,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:43,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:43,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:43,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:43,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:43,875 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 401 [2025-03-08 22:03:43,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 385 transitions, 787 flow. Second operand has 6 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:43,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:43,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 401 [2025-03-08 22:03:43,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:44,066 INFO L124 PetriNetUnfolderBase]: 320/1715 cut-off events. [2025-03-08 22:03:44,067 INFO L125 PetriNetUnfolderBase]: For 16/24 co-relation queries the response was YES. [2025-03-08 22:03:44,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2456 conditions, 1715 events. 320/1715 cut-off events. For 16/24 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10756 event pairs, 288 based on Foata normal form. 0/1581 useless extension candidates. Maximal degree in co-relation 2192. Up to 708 conditions per place. [2025-03-08 22:03:44,074 INFO L140 encePairwiseOnDemand]: 389/401 looper letters, 80 selfloop transitions, 10 changer transitions 0/383 dead transitions. [2025-03-08 22:03:44,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 383 transitions, 963 flow [2025-03-08 22:03:44,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:44,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:44,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1862 transitions. [2025-03-08 22:03:44,078 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7738985868661679 [2025-03-08 22:03:44,078 INFO L175 Difference]: Start difference. First operand has 384 places, 385 transitions, 787 flow. Second operand 6 states and 1862 transitions. [2025-03-08 22:03:44,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 383 transitions, 963 flow [2025-03-08 22:03:44,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 383 transitions, 961 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 22:03:44,083 INFO L231 Difference]: Finished difference. Result has 386 places, 383 transitions, 801 flow [2025-03-08 22:03:44,083 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=801, PETRI_PLACES=386, PETRI_TRANSITIONS=383} [2025-03-08 22:03:44,084 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 1 predicate places. [2025-03-08 22:03:44,084 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 383 transitions, 801 flow [2025-03-08 22:03:44,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:44,085 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:44,085 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:44,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:03:44,085 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:44,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:44,086 INFO L85 PathProgramCache]: Analyzing trace with hash 2075868690, now seen corresponding path program 1 times [2025-03-08 22:03:44,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:44,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532317654] [2025-03-08 22:03:44,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:44,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:44,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-08 22:03:44,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-08 22:03:44,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:44,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:44,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:44,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:44,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532317654] [2025-03-08 22:03:44,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532317654] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:44,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:44,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:44,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318625160] [2025-03-08 22:03:44,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:44,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:44,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:44,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:44,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:44,824 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 401 [2025-03-08 22:03:44,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 383 transitions, 801 flow. Second operand has 6 states, 6 states have (on average 296.6666666666667) internal successors, (1780), 6 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:44,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:44,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 401 [2025-03-08 22:03:44,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:45,110 INFO L124 PetriNetUnfolderBase]: 320/1713 cut-off events. [2025-03-08 22:03:45,110 INFO L125 PetriNetUnfolderBase]: For 19/27 co-relation queries the response was YES. [2025-03-08 22:03:45,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2477 conditions, 1713 events. 320/1713 cut-off events. For 19/27 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10730 event pairs, 288 based on Foata normal form. 0/1581 useless extension candidates. Maximal degree in co-relation 2092. Up to 722 conditions per place. [2025-03-08 22:03:45,116 INFO L140 encePairwiseOnDemand]: 395/401 looper letters, 87 selfloop transitions, 5 changer transitions 0/382 dead transitions. [2025-03-08 22:03:45,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 382 transitions, 983 flow [2025-03-08 22:03:45,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:45,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:45,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1857 transitions. [2025-03-08 22:03:45,120 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7718204488778054 [2025-03-08 22:03:45,120 INFO L175 Difference]: Start difference. First operand has 386 places, 383 transitions, 801 flow. Second operand 6 states and 1857 transitions. [2025-03-08 22:03:45,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 382 transitions, 983 flow [2025-03-08 22:03:45,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 382 transitions, 963 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:03:45,124 INFO L231 Difference]: Finished difference. Result has 385 places, 382 transitions, 789 flow [2025-03-08 22:03:45,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=789, PETRI_PLACES=385, PETRI_TRANSITIONS=382} [2025-03-08 22:03:45,125 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 0 predicate places. [2025-03-08 22:03:45,125 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 382 transitions, 789 flow [2025-03-08 22:03:45,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 296.6666666666667) internal successors, (1780), 6 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:45,126 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:45,127 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:45,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:03:45,127 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:45,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:45,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1176528823, now seen corresponding path program 1 times [2025-03-08 22:03:45,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:45,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475348893] [2025-03-08 22:03:45,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:45,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:45,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-08 22:03:45,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-08 22:03:45,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:45,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:45,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:45,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:45,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475348893] [2025-03-08 22:03:45,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475348893] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:45,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:45,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:03:45,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470015787] [2025-03-08 22:03:45,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:45,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:03:45,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:45,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:03:45,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:03:45,208 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 401 [2025-03-08 22:03:45,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 382 transitions, 789 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:45,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:45,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 401 [2025-03-08 22:03:45,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:45,285 INFO L124 PetriNetUnfolderBase]: 15/746 cut-off events. [2025-03-08 22:03:45,285 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2025-03-08 22:03:45,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 746 events. 15/746 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1635 event pairs, 8 based on Foata normal form. 2/702 useless extension candidates. Maximal degree in co-relation 593. Up to 38 conditions per place. [2025-03-08 22:03:45,289 INFO L140 encePairwiseOnDemand]: 398/401 looper letters, 15 selfloop transitions, 2 changer transitions 0/383 dead transitions. [2025-03-08 22:03:45,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 383 transitions, 825 flow [2025-03-08 22:03:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:03:45,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:03:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1131 transitions. [2025-03-08 22:03:45,301 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.940149625935162 [2025-03-08 22:03:45,301 INFO L175 Difference]: Start difference. First operand has 385 places, 382 transitions, 789 flow. Second operand 3 states and 1131 transitions. [2025-03-08 22:03:45,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 383 transitions, 825 flow [2025-03-08 22:03:45,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 383 transitions, 815 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:03:45,309 INFO L231 Difference]: Finished difference. Result has 383 places, 383 transitions, 791 flow [2025-03-08 22:03:45,310 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=791, PETRI_PLACES=383, PETRI_TRANSITIONS=383} [2025-03-08 22:03:45,310 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, -2 predicate places. [2025-03-08 22:03:45,310 INFO L471 AbstractCegarLoop]: Abstraction has has 383 places, 383 transitions, 791 flow [2025-03-08 22:03:45,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:45,311 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:45,311 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:45,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 22:03:45,311 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:45,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:45,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1851148512, now seen corresponding path program 1 times [2025-03-08 22:03:45,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:45,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776053105] [2025-03-08 22:03:45,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:45,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:45,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-08 22:03:45,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-08 22:03:45,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:45,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:45,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:45,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:45,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776053105] [2025-03-08 22:03:45,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776053105] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:45,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:45,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:45,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149023786] [2025-03-08 22:03:45,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:45,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:45,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:45,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:45,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:46,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 401 [2025-03-08 22:03:46,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 383 transitions, 791 flow. Second operand has 6 states, 6 states have (on average 323.5) internal successors, (1941), 6 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:46,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:46,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 401 [2025-03-08 22:03:46,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:46,319 INFO L124 PetriNetUnfolderBase]: 83/1056 cut-off events. [2025-03-08 22:03:46,320 INFO L125 PetriNetUnfolderBase]: For 10/14 co-relation queries the response was YES. [2025-03-08 22:03:46,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 1056 events. 83/1056 cut-off events. For 10/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3645 event pairs, 64 based on Foata normal form. 0/973 useless extension candidates. Maximal degree in co-relation 877. Up to 311 conditions per place. [2025-03-08 22:03:46,325 INFO L140 encePairwiseOnDemand]: 395/401 looper letters, 62 selfloop transitions, 5 changer transitions 0/382 dead transitions. [2025-03-08 22:03:46,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 382 transitions, 923 flow [2025-03-08 22:03:46,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:46,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1982 transitions. [2025-03-08 22:03:46,329 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8237738985868661 [2025-03-08 22:03:46,329 INFO L175 Difference]: Start difference. First operand has 383 places, 383 transitions, 791 flow. Second operand 6 states and 1982 transitions. [2025-03-08 22:03:46,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 382 transitions, 923 flow [2025-03-08 22:03:46,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 382 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 22:03:46,335 INFO L231 Difference]: Finished difference. Result has 386 places, 382 transitions, 797 flow [2025-03-08 22:03:46,337 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=797, PETRI_PLACES=386, PETRI_TRANSITIONS=382} [2025-03-08 22:03:46,338 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 1 predicate places. [2025-03-08 22:03:46,338 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 382 transitions, 797 flow [2025-03-08 22:03:46,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.5) internal successors, (1941), 6 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:46,340 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:46,340 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:46,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 22:03:46,340 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:46,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:46,341 INFO L85 PathProgramCache]: Analyzing trace with hash 664473902, now seen corresponding path program 1 times [2025-03-08 22:03:46,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:46,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303070292] [2025-03-08 22:03:46,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:46,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:46,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-03-08 22:03:46,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-03-08 22:03:46,375 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:46,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:46,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:46,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303070292] [2025-03-08 22:03:46,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303070292] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:46,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:46,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:46,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080838093] [2025-03-08 22:03:46,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:46,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:46,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:46,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:46,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:47,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 401 [2025-03-08 22:03:47,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 382 transitions, 797 flow. Second operand has 6 states, 6 states have (on average 299.3333333333333) internal successors, (1796), 6 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:47,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:47,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 401 [2025-03-08 22:03:47,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:47,394 INFO L124 PetriNetUnfolderBase]: 320/1893 cut-off events. [2025-03-08 22:03:47,394 INFO L125 PetriNetUnfolderBase]: For 19/27 co-relation queries the response was YES. [2025-03-08 22:03:47,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2742 conditions, 1893 events. 320/1893 cut-off events. For 19/27 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10642 event pairs, 288 based on Foata normal form. 0/1761 useless extension candidates. Maximal degree in co-relation 2236. Up to 788 conditions per place. [2025-03-08 22:03:47,401 INFO L140 encePairwiseOnDemand]: 395/401 looper letters, 87 selfloop transitions, 5 changer transitions 0/381 dead transitions. [2025-03-08 22:03:47,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 381 transitions, 979 flow [2025-03-08 22:03:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:47,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:47,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1857 transitions. [2025-03-08 22:03:47,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7718204488778054 [2025-03-08 22:03:47,404 INFO L175 Difference]: Start difference. First operand has 386 places, 382 transitions, 797 flow. Second operand 6 states and 1857 transitions. [2025-03-08 22:03:47,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 381 transitions, 979 flow [2025-03-08 22:03:47,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 381 transitions, 969 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:03:47,410 INFO L231 Difference]: Finished difference. Result has 385 places, 381 transitions, 795 flow [2025-03-08 22:03:47,410 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=795, PETRI_PLACES=385, PETRI_TRANSITIONS=381} [2025-03-08 22:03:47,411 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 0 predicate places. [2025-03-08 22:03:47,411 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 381 transitions, 795 flow [2025-03-08 22:03:47,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.3333333333333) internal successors, (1796), 6 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:47,412 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:47,412 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:47,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 22:03:47,413 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:47,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:47,413 INFO L85 PathProgramCache]: Analyzing trace with hash 200467919, now seen corresponding path program 1 times [2025-03-08 22:03:47,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:47,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231215930] [2025-03-08 22:03:47,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:47,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:47,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-03-08 22:03:47,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-03-08 22:03:47,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:47,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:47,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:47,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:47,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231215930] [2025-03-08 22:03:47,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231215930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:47,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:47,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:47,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892116475] [2025-03-08 22:03:47,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:47,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:47,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:47,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:47,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:48,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 401 [2025-03-08 22:03:48,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 381 transitions, 795 flow. Second operand has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:48,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:48,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 401 [2025-03-08 22:03:48,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:48,339 INFO L124 PetriNetUnfolderBase]: 320/1889 cut-off events. [2025-03-08 22:03:48,339 INFO L125 PetriNetUnfolderBase]: For 19/27 co-relation queries the response was YES. [2025-03-08 22:03:48,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2722 conditions, 1889 events. 320/1889 cut-off events. For 19/27 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10635 event pairs, 288 based on Foata normal form. 0/1761 useless extension candidates. Maximal degree in co-relation 2252. Up to 772 conditions per place. [2025-03-08 22:03:48,346 INFO L140 encePairwiseOnDemand]: 395/401 looper letters, 83 selfloop transitions, 5 changer transitions 0/380 dead transitions. [2025-03-08 22:03:48,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 380 transitions, 969 flow [2025-03-08 22:03:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:48,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:48,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1877 transitions. [2025-03-08 22:03:48,354 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7801330008312551 [2025-03-08 22:03:48,354 INFO L175 Difference]: Start difference. First operand has 385 places, 381 transitions, 795 flow. Second operand 6 states and 1877 transitions. [2025-03-08 22:03:48,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 380 transitions, 969 flow [2025-03-08 22:03:48,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 380 transitions, 959 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:03:48,360 INFO L231 Difference]: Finished difference. Result has 384 places, 380 transitions, 793 flow [2025-03-08 22:03:48,361 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=793, PETRI_PLACES=384, PETRI_TRANSITIONS=380} [2025-03-08 22:03:48,363 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, -1 predicate places. [2025-03-08 22:03:48,363 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 380 transitions, 793 flow [2025-03-08 22:03:48,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:48,364 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:48,364 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:48,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 22:03:48,364 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:48,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:48,365 INFO L85 PathProgramCache]: Analyzing trace with hash 670185604, now seen corresponding path program 1 times [2025-03-08 22:03:48,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:48,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178247046] [2025-03-08 22:03:48,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:48,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:48,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 22:03:48,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 22:03:48,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:48,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:48,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:48,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:48,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178247046] [2025-03-08 22:03:48,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178247046] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:48,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:48,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:48,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235467248] [2025-03-08 22:03:48,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:48,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:48,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:48,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:48,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:49,093 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 401 [2025-03-08 22:03:49,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 380 transitions, 793 flow. Second operand has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:49,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:49,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 401 [2025-03-08 22:03:49,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:49,352 INFO L124 PetriNetUnfolderBase]: 320/1885 cut-off events. [2025-03-08 22:03:49,353 INFO L125 PetriNetUnfolderBase]: For 15/23 co-relation queries the response was YES. [2025-03-08 22:03:49,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2718 conditions, 1885 events. 320/1885 cut-off events. For 15/23 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10598 event pairs, 288 based on Foata normal form. 0/1761 useless extension candidates. Maximal degree in co-relation 2267. Up to 772 conditions per place. [2025-03-08 22:03:49,362 INFO L140 encePairwiseOnDemand]: 395/401 looper letters, 83 selfloop transitions, 5 changer transitions 0/379 dead transitions. [2025-03-08 22:03:49,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 379 transitions, 967 flow [2025-03-08 22:03:49,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:49,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:49,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1877 transitions. [2025-03-08 22:03:49,366 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7801330008312551 [2025-03-08 22:03:49,366 INFO L175 Difference]: Start difference. First operand has 384 places, 380 transitions, 793 flow. Second operand 6 states and 1877 transitions. [2025-03-08 22:03:49,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 379 transitions, 967 flow [2025-03-08 22:03:49,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 379 transitions, 957 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:03:49,371 INFO L231 Difference]: Finished difference. Result has 383 places, 379 transitions, 791 flow [2025-03-08 22:03:49,372 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=791, PETRI_PLACES=383, PETRI_TRANSITIONS=379} [2025-03-08 22:03:49,373 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, -2 predicate places. [2025-03-08 22:03:49,373 INFO L471 AbstractCegarLoop]: Abstraction has has 383 places, 379 transitions, 791 flow [2025-03-08 22:03:49,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:49,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:49,374 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:49,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 22:03:49,375 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:49,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:49,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1332645664, now seen corresponding path program 1 times [2025-03-08 22:03:49,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:49,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205602991] [2025-03-08 22:03:49,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:49,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:49,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-03-08 22:03:49,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-03-08 22:03:49,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:49,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:49,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-08 22:03:49,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:49,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205602991] [2025-03-08 22:03:49,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205602991] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:49,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:49,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:49,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924816533] [2025-03-08 22:03:49,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:49,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:49,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:49,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:49,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:50,023 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 401 [2025-03-08 22:03:50,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 379 transitions, 791 flow. Second operand has 6 states, 6 states have (on average 300.5) internal successors, (1803), 6 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:50,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:50,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 401 [2025-03-08 22:03:50,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:50,220 INFO L124 PetriNetUnfolderBase]: 320/1881 cut-off events. [2025-03-08 22:03:50,220 INFO L125 PetriNetUnfolderBase]: For 19/27 co-relation queries the response was YES. [2025-03-08 22:03:50,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2734 conditions, 1881 events. 320/1881 cut-off events. For 19/27 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10596 event pairs, 288 based on Foata normal form. 0/1761 useless extension candidates. Maximal degree in co-relation 2280. Up to 792 conditions per place. [2025-03-08 22:03:50,226 INFO L140 encePairwiseOnDemand]: 395/401 looper letters, 88 selfloop transitions, 5 changer transitions 0/378 dead transitions. [2025-03-08 22:03:50,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 378 transitions, 975 flow [2025-03-08 22:03:50,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:50,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1852 transitions. [2025-03-08 22:03:50,230 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.769742310889443 [2025-03-08 22:03:50,230 INFO L175 Difference]: Start difference. First operand has 383 places, 379 transitions, 791 flow. Second operand 6 states and 1852 transitions. [2025-03-08 22:03:50,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 378 transitions, 975 flow [2025-03-08 22:03:50,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 378 transitions, 965 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:03:50,234 INFO L231 Difference]: Finished difference. Result has 382 places, 378 transitions, 789 flow [2025-03-08 22:03:50,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=789, PETRI_PLACES=382, PETRI_TRANSITIONS=378} [2025-03-08 22:03:50,235 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, -3 predicate places. [2025-03-08 22:03:50,235 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 378 transitions, 789 flow [2025-03-08 22:03:50,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 300.5) internal successors, (1803), 6 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:50,236 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:50,236 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:50,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 22:03:50,237 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:50,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:50,237 INFO L85 PathProgramCache]: Analyzing trace with hash 842573375, now seen corresponding path program 1 times [2025-03-08 22:03:50,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:50,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277723907] [2025-03-08 22:03:50,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:50,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:50,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-03-08 22:03:50,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-03-08 22:03:50,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:50,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 22:03:50,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:50,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277723907] [2025-03-08 22:03:50,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277723907] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:03:50,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608460541] [2025-03-08 22:03:50,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:50,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:03:50,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:03:50,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:03:50,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 22:03:50,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-03-08 22:03:50,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-03-08 22:03:50,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:50,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:50,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 22:03:50,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:03:50,734 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 22:03:50,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:03:50,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 22:03:50,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608460541] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:03:50,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:03:50,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-08 22:03:50,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20467736] [2025-03-08 22:03:50,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:03:50,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 22:03:50,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:50,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 22:03:50,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-08 22:03:50,913 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 401 [2025-03-08 22:03:50,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 378 transitions, 789 flow. Second operand has 10 states, 10 states have (on average 369.8) internal successors, (3698), 10 states have internal predecessors, (3698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:50,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:50,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 401 [2025-03-08 22:03:50,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:51,105 INFO L124 PetriNetUnfolderBase]: 15/910 cut-off events. [2025-03-08 22:03:51,105 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2025-03-08 22:03:51,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1024 conditions, 910 events. 15/910 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1048 event pairs, 8 based on Foata normal form. 4/888 useless extension candidates. Maximal degree in co-relation 799. Up to 38 conditions per place. [2025-03-08 22:03:51,108 INFO L140 encePairwiseOnDemand]: 395/401 looper letters, 19 selfloop transitions, 9 changer transitions 0/386 dead transitions. [2025-03-08 22:03:51,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 386 transitions, 863 flow [2025-03-08 22:03:51,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:03:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 22:03:51,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3342 transitions. [2025-03-08 22:03:51,113 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9260182876142976 [2025-03-08 22:03:51,113 INFO L175 Difference]: Start difference. First operand has 382 places, 378 transitions, 789 flow. Second operand 9 states and 3342 transitions. [2025-03-08 22:03:51,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 386 transitions, 863 flow [2025-03-08 22:03:51,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 386 transitions, 853 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:03:51,118 INFO L231 Difference]: Finished difference. Result has 388 places, 384 transitions, 829 flow [2025-03-08 22:03:51,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=829, PETRI_PLACES=388, PETRI_TRANSITIONS=384} [2025-03-08 22:03:51,120 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 3 predicate places. [2025-03-08 22:03:51,121 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 384 transitions, 829 flow [2025-03-08 22:03:51,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 369.8) internal successors, (3698), 10 states have internal predecessors, (3698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:51,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:51,123 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:51,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 22:03:51,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-08 22:03:51,327 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:51,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:51,328 INFO L85 PathProgramCache]: Analyzing trace with hash 219878735, now seen corresponding path program 2 times [2025-03-08 22:03:51,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:51,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225480646] [2025-03-08 22:03:51,328 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:03:51,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:51,385 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 401 statements into 2 equivalence classes. [2025-03-08 22:03:51,389 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 102 of 401 statements. [2025-03-08 22:03:51,390 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:03:51,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:51,575 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2025-03-08 22:03:51,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:51,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225480646] [2025-03-08 22:03:51,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225480646] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:51,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:51,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:51,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324646805] [2025-03-08 22:03:51,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:51,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:51,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:51,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:51,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:51,860 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 401 [2025-03-08 22:03:51,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 384 transitions, 829 flow. Second operand has 6 states, 6 states have (on average 299.1666666666667) internal successors, (1795), 6 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:51,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:51,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 401 [2025-03-08 22:03:51,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:52,517 INFO L124 PetriNetUnfolderBase]: 739/3465 cut-off events. [2025-03-08 22:03:52,517 INFO L125 PetriNetUnfolderBase]: For 30/44 co-relation queries the response was YES. [2025-03-08 22:03:52,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5232 conditions, 3465 events. 739/3465 cut-off events. For 30/44 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 22458 event pairs, 323 based on Foata normal form. 4/3220 useless extension candidates. Maximal degree in co-relation 4568. Up to 1429 conditions per place. [2025-03-08 22:03:52,529 INFO L140 encePairwiseOnDemand]: 366/401 looper letters, 127 selfloop transitions, 118 changer transitions 0/533 dead transitions. [2025-03-08 22:03:52,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 533 transitions, 1617 flow [2025-03-08 22:03:52,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:52,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:52,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1992 transitions. [2025-03-08 22:03:52,533 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.827930174563591 [2025-03-08 22:03:52,533 INFO L175 Difference]: Start difference. First operand has 388 places, 384 transitions, 829 flow. Second operand 6 states and 1992 transitions. [2025-03-08 22:03:52,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 533 transitions, 1617 flow [2025-03-08 22:03:52,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 533 transitions, 1611 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-08 22:03:52,541 INFO L231 Difference]: Finished difference. Result has 397 places, 501 transitions, 1597 flow [2025-03-08 22:03:52,542 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1597, PETRI_PLACES=397, PETRI_TRANSITIONS=501} [2025-03-08 22:03:52,542 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 12 predicate places. [2025-03-08 22:03:52,542 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 501 transitions, 1597 flow [2025-03-08 22:03:52,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.1666666666667) internal successors, (1795), 6 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:52,543 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:52,544 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:52,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 22:03:52,544 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:52,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:52,545 INFO L85 PathProgramCache]: Analyzing trace with hash 743301452, now seen corresponding path program 1 times [2025-03-08 22:03:52,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:52,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044443645] [2025-03-08 22:03:52,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:52,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:52,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 401 statements into 1 equivalence classes. [2025-03-08 22:03:52,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 401 of 401 statements. [2025-03-08 22:03:52,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:52,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:52,866 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2025-03-08 22:03:52,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:52,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044443645] [2025-03-08 22:03:52,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044443645] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:03:52,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426225210] [2025-03-08 22:03:52,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:52,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:03:52,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:03:52,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:03:52,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 22:03:53,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 401 statements into 1 equivalence classes. [2025-03-08 22:03:53,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 401 of 401 statements. [2025-03-08 22:03:53,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:53,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:53,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 1472 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 22:03:53,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:03:53,201 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-08 22:03:53,201 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:03:53,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426225210] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:53,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 22:03:53,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 22:03:53,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477953567] [2025-03-08 22:03:53,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:53,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:03:53,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:53,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:03:53,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:53,226 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 401 [2025-03-08 22:03:53,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 501 transitions, 1597 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:53,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:53,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 401 [2025-03-08 22:03:53,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:53,513 INFO L124 PetriNetUnfolderBase]: 280/2138 cut-off events. [2025-03-08 22:03:53,513 INFO L125 PetriNetUnfolderBase]: For 209/251 co-relation queries the response was YES. [2025-03-08 22:03:53,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3205 conditions, 2138 events. 280/2138 cut-off events. For 209/251 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 10883 event pairs, 24 based on Foata normal form. 2/2013 useless extension candidates. Maximal degree in co-relation 2676. Up to 340 conditions per place. [2025-03-08 22:03:53,523 INFO L140 encePairwiseOnDemand]: 398/401 looper letters, 22 selfloop transitions, 3 changer transitions 0/509 dead transitions. [2025-03-08 22:03:53,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 509 transitions, 1663 flow [2025-03-08 22:03:53,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:03:53,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:03:53,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1138 transitions. [2025-03-08 22:03:53,526 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9459684123025769 [2025-03-08 22:03:53,526 INFO L175 Difference]: Start difference. First operand has 397 places, 501 transitions, 1597 flow. Second operand 3 states and 1138 transitions. [2025-03-08 22:03:53,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 509 transitions, 1663 flow [2025-03-08 22:03:53,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 509 transitions, 1663 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:03:53,537 INFO L231 Difference]: Finished difference. Result has 400 places, 501 transitions, 1608 flow [2025-03-08 22:03:53,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=1597, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1608, PETRI_PLACES=400, PETRI_TRANSITIONS=501} [2025-03-08 22:03:53,539 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 15 predicate places. [2025-03-08 22:03:53,539 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 501 transitions, 1608 flow [2025-03-08 22:03:53,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:53,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:53,540 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:53,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 22:03:53,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-08 22:03:53,745 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:53,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:53,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1846025338, now seen corresponding path program 1 times [2025-03-08 22:03:53,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:53,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500245950] [2025-03-08 22:03:53,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:53,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:53,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 415 statements into 1 equivalence classes. [2025-03-08 22:03:53,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 415 of 415 statements. [2025-03-08 22:03:53,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:53,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:54,041 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2025-03-08 22:03:54,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:54,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500245950] [2025-03-08 22:03:54,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500245950] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:03:54,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355478997] [2025-03-08 22:03:54,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:54,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:03:54,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:03:54,044 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:03:54,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 22:03:54,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 415 statements into 1 equivalence classes. [2025-03-08 22:03:54,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 415 of 415 statements. [2025-03-08 22:03:54,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:54,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:54,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 1525 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 22:03:54,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:03:54,729 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 1 proven. 333 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 22:03:54,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:03:55,059 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 1 proven. 333 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 22:03:55,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355478997] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:03:55,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:03:55,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2025-03-08 22:03:55,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054127863] [2025-03-08 22:03:55,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:03:55,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-08 22:03:55,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:55,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-08 22:03:55,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2025-03-08 22:03:55,140 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 401 [2025-03-08 22:03:55,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 501 transitions, 1608 flow. Second operand has 19 states, 19 states have (on average 364.57894736842104) internal successors, (6927), 19 states have internal predecessors, (6927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:55,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:55,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 401 [2025-03-08 22:03:55,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:56,495 INFO L124 PetriNetUnfolderBase]: 262/3390 cut-off events. [2025-03-08 22:03:56,495 INFO L125 PetriNetUnfolderBase]: For 241/263 co-relation queries the response was YES. [2025-03-08 22:03:56,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4649 conditions, 3390 events. 262/3390 cut-off events. For 241/263 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9516 event pairs, 8 based on Foata normal form. 13/3307 useless extension candidates. Maximal degree in co-relation 2550. Up to 345 conditions per place. [2025-03-08 22:03:56,504 INFO L140 encePairwiseOnDemand]: 390/401 looper letters, 51 selfloop transitions, 68 changer transitions 0/587 dead transitions. [2025-03-08 22:03:56,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 587 transitions, 2256 flow [2025-03-08 22:03:56,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-03-08 22:03:56,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2025-03-08 22:03:56,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 22938 transitions. [2025-03-08 22:03:56,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9079681748010925 [2025-03-08 22:03:56,525 INFO L175 Difference]: Start difference. First operand has 400 places, 501 transitions, 1608 flow. Second operand 63 states and 22938 transitions. [2025-03-08 22:03:56,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 587 transitions, 2256 flow [2025-03-08 22:03:56,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 587 transitions, 2250 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:03:56,534 INFO L231 Difference]: Finished difference. Result has 476 places, 563 transitions, 2122 flow [2025-03-08 22:03:56,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=1602, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=2122, PETRI_PLACES=476, PETRI_TRANSITIONS=563} [2025-03-08 22:03:56,535 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 91 predicate places. [2025-03-08 22:03:56,536 INFO L471 AbstractCegarLoop]: Abstraction has has 476 places, 563 transitions, 2122 flow [2025-03-08 22:03:56,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 364.57894736842104) internal successors, (6927), 19 states have internal predecessors, (6927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:56,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:56,538 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:56,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 22:03:56,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:03:56,739 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:56,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:56,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1498501630, now seen corresponding path program 2 times [2025-03-08 22:03:56,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:56,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846065209] [2025-03-08 22:03:56,742 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:03:56,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:56,911 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1434 statements into 2 equivalence classes. [2025-03-08 22:03:56,915 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 116 of 1434 statements. [2025-03-08 22:03:56,915 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:03:56,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:56,960 INFO L134 CoverageAnalysis]: Checked inductivity of 10209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10209 trivial. 0 not checked. [2025-03-08 22:03:56,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:56,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846065209] [2025-03-08 22:03:56,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846065209] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:56,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:56,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:56,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683333513] [2025-03-08 22:03:56,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:56,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:03:56,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:56,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:03:56,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:03:56,997 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 401 [2025-03-08 22:03:57,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 563 transitions, 2122 flow. Second operand has 5 states, 5 states have (on average 370.6) internal successors, (1853), 5 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:57,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:57,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 401 [2025-03-08 22:03:57,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:57,909 INFO L124 PetriNetUnfolderBase]: 303/3555 cut-off events. [2025-03-08 22:03:57,910 INFO L125 PetriNetUnfolderBase]: For 626/652 co-relation queries the response was YES. [2025-03-08 22:03:57,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5027 conditions, 3555 events. 303/3555 cut-off events. For 626/652 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10493 event pairs, 0 based on Foata normal form. 9/3461 useless extension candidates. Maximal degree in co-relation 3376. Up to 369 conditions per place. [2025-03-08 22:03:57,918 INFO L140 encePairwiseOnDemand]: 396/401 looper letters, 34 selfloop transitions, 5 changer transitions 0/564 dead transitions. [2025-03-08 22:03:57,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 564 transitions, 2197 flow [2025-03-08 22:03:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:57,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:57,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2253 transitions. [2025-03-08 22:03:57,920 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9364089775561097 [2025-03-08 22:03:57,920 INFO L175 Difference]: Start difference. First operand has 476 places, 563 transitions, 2122 flow. Second operand 6 states and 2253 transitions. [2025-03-08 22:03:57,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 564 transitions, 2197 flow [2025-03-08 22:03:57,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 564 transitions, 2118 flow, removed 19 selfloop flow, removed 8 redundant places. [2025-03-08 22:03:57,933 INFO L231 Difference]: Finished difference. Result has 451 places, 540 transitions, 2002 flow [2025-03-08 22:03:57,934 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=1992, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2002, PETRI_PLACES=451, PETRI_TRANSITIONS=540} [2025-03-08 22:03:57,934 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 66 predicate places. [2025-03-08 22:03:57,934 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 540 transitions, 2002 flow [2025-03-08 22:03:57,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 370.6) internal successors, (1853), 5 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:03:57,935 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:57,936 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:57,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 22:03:57,936 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:03:57,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:57,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1744855629, now seen corresponding path program 1 times [2025-03-08 22:03:57,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:57,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152640654] [2025-03-08 22:03:57,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:57,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:58,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1435 statements into 1 equivalence classes. [2025-03-08 22:03:58,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1435 of 1435 statements. [2025-03-08 22:03:58,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:58,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:04:00,144 INFO L134 CoverageAnalysis]: Checked inductivity of 10209 backedges. 5430 proven. 2317 refuted. 0 times theorem prover too weak. 2462 trivial. 0 not checked. [2025-03-08 22:04:00,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:04:00,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152640654] [2025-03-08 22:04:00,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152640654] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:04:00,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034739089] [2025-03-08 22:04:00,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:04:00,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:04:00,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:04:00,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:04:00,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 22:04:00,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1435 statements into 1 equivalence classes. [2025-03-08 22:04:01,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1435 of 1435 statements. [2025-03-08 22:04:01,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:04:01,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:04:01,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 5693 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-08 22:04:01,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:04:01,790 INFO L134 CoverageAnalysis]: Checked inductivity of 10209 backedges. 5430 proven. 2317 refuted. 0 times theorem prover too weak. 2462 trivial. 0 not checked. [2025-03-08 22:04:01,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:04:02,400 INFO L134 CoverageAnalysis]: Checked inductivity of 10209 backedges. 5430 proven. 2317 refuted. 0 times theorem prover too weak. 2462 trivial. 0 not checked. [2025-03-08 22:04:02,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034739089] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:04:02,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:04:02,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-03-08 22:04:02,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414741479] [2025-03-08 22:04:02,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:04:02,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-08 22:04:02,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:04:02,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-08 22:04:02,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-03-08 22:04:02,438 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 401 [2025-03-08 22:04:02,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 540 transitions, 2002 flow. Second operand has 34 states, 34 states have (on average 370.1470588235294) internal successors, (12585), 34 states have internal predecessors, (12585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:04:02,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:04:02,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 401 [2025-03-08 22:04:02,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:04:04,832 INFO L124 PetriNetUnfolderBase]: 251/5484 cut-off events. [2025-03-08 22:04:04,832 INFO L125 PetriNetUnfolderBase]: For 3363/3384 co-relation queries the response was YES. [2025-03-08 22:04:04,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7217 conditions, 5484 events. 251/5484 cut-off events. For 3363/3384 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 8878 event pairs, 0 based on Foata normal form. 24/5423 useless extension candidates. Maximal degree in co-relation 4986. Up to 345 conditions per place. [2025-03-08 22:04:04,840 INFO L140 encePairwiseOnDemand]: 395/401 looper letters, 49 selfloop transitions, 135 changer transitions 0/641 dead transitions. [2025-03-08 22:04:04,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 641 transitions, 3134 flow [2025-03-08 22:04:04,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-03-08 22:04:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2025-03-08 22:04:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 16642 transitions. [2025-03-08 22:04:04,848 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9222499307287337 [2025-03-08 22:04:04,848 INFO L175 Difference]: Start difference. First operand has 451 places, 540 transitions, 2002 flow. Second operand 45 states and 16642 transitions. [2025-03-08 22:04:04,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 641 transitions, 3134 flow [2025-03-08 22:04:04,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 641 transitions, 3125 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-08 22:04:04,862 INFO L231 Difference]: Finished difference. Result has 500 places, 615 transitions, 2867 flow [2025-03-08 22:04:04,862 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=1993, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2867, PETRI_PLACES=500, PETRI_TRANSITIONS=615} [2025-03-08 22:04:04,862 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 115 predicate places. [2025-03-08 22:04:04,862 INFO L471 AbstractCegarLoop]: Abstraction has has 500 places, 615 transitions, 2867 flow [2025-03-08 22:04:04,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 370.1470588235294) internal successors, (12585), 34 states have internal predecessors, (12585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:04:04,865 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:04:04,866 INFO L206 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:04:04,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 22:04:05,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-08 22:04:05,067 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:04:05,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:04:05,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1331059277, now seen corresponding path program 2 times [2025-03-08 22:04:05,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:04:05,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948703039] [2025-03-08 22:04:05,073 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:04:05,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:04:05,337 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2875 statements into 2 equivalence classes. [2025-03-08 22:04:05,556 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 2875 of 2875 statements. [2025-03-08 22:04:05,557 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 22:04:05,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:04:13,837 INFO L134 CoverageAnalysis]: Checked inductivity of 48241 backedges. 24806 proven. 11565 refuted. 0 times theorem prover too weak. 11870 trivial. 0 not checked. [2025-03-08 22:04:13,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:04:13,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948703039] [2025-03-08 22:04:13,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948703039] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:04:13,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732671564] [2025-03-08 22:04:13,838 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:04:13,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:04:13,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:04:13,842 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:04:13,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 22:04:14,756 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2875 statements into 2 equivalence classes. [2025-03-08 22:04:15,700 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 2875 of 2875 statements. [2025-03-08 22:04:15,700 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 22:04:15,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:04:15,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 11581 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-08 22:04:15,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:04:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 48241 backedges. 24806 proven. 11565 refuted. 0 times theorem prover too weak. 11870 trivial. 0 not checked. [2025-03-08 22:04:16,720 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:04:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 48241 backedges. 24806 proven. 11565 refuted. 0 times theorem prover too weak. 11870 trivial. 0 not checked. [2025-03-08 22:04:18,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732671564] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:04:18,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:04:18,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2025-03-08 22:04:18,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286590455] [2025-03-08 22:04:18,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:04:18,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-03-08 22:04:18,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:04:18,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-03-08 22:04:18,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2025-03-08 22:04:18,244 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 401 [2025-03-08 22:04:18,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 615 transitions, 2867 flow. Second operand has 63 states, 63 states have (on average 370.1111111111111) internal successors, (23317), 63 states have internal predecessors, (23317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:04:18,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:04:18,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 401 [2025-03-08 22:04:18,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:04:25,369 INFO L124 PetriNetUnfolderBase]: 251/9534 cut-off events. [2025-03-08 22:04:25,369 INFO L125 PetriNetUnfolderBase]: For 13571/13592 co-relation queries the response was YES. [2025-03-08 22:04:25,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12435 conditions, 9534 events. 251/9534 cut-off events. For 13571/13592 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 8865 event pairs, 0 based on Foata normal form. 45/9494 useless extension candidates. Maximal degree in co-relation 10199. Up to 345 conditions per place. [2025-03-08 22:04:25,384 INFO L140 encePairwiseOnDemand]: 395/401 looper letters, 94 selfloop transitions, 270 changer transitions 0/821 dead transitions. [2025-03-08 22:04:25,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 821 transitions, 5781 flow [2025-03-08 22:04:25,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2025-03-08 22:04:25,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2025-03-08 22:04:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 33269 transitions. [2025-03-08 22:04:25,399 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9218343031310612 [2025-03-08 22:04:25,400 INFO L175 Difference]: Start difference. First operand has 500 places, 615 transitions, 2867 flow. Second operand 90 states and 33269 transitions. [2025-03-08 22:04:25,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 821 transitions, 5781 flow [2025-03-08 22:04:25,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 821 transitions, 5673 flow, removed 0 selfloop flow, removed 18 redundant places. [2025-03-08 22:04:25,421 INFO L231 Difference]: Finished difference. Result has 587 places, 753 transitions, 4751 flow [2025-03-08 22:04:25,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=2759, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=4751, PETRI_PLACES=587, PETRI_TRANSITIONS=753} [2025-03-08 22:04:25,422 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 202 predicate places. [2025-03-08 22:04:25,422 INFO L471 AbstractCegarLoop]: Abstraction has has 587 places, 753 transitions, 4751 flow [2025-03-08 22:04:25,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 370.1111111111111) internal successors, (23317), 63 states have internal predecessors, (23317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:04:25,428 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:04:25,429 INFO L206 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:04:25,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-08 22:04:25,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-08 22:04:25,630 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:04:25,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:04:25,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1927061171, now seen corresponding path program 3 times [2025-03-08 22:04:25,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:04:25,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127807076] [2025-03-08 22:04:25,641 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-08 22:04:25,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:04:26,134 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 5575 statements into 35 equivalence classes. [2025-03-08 22:04:26,148 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 231 of 5575 statements. [2025-03-08 22:04:26,148 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-08 22:04:26,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:04:26,270 INFO L134 CoverageAnalysis]: Checked inductivity of 195451 backedges. 0 proven. 99091 refuted. 0 times theorem prover too weak. 96360 trivial. 0 not checked. [2025-03-08 22:04:26,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:04:26,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127807076] [2025-03-08 22:04:26,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127807076] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:04:26,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593975918] [2025-03-08 22:04:26,271 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-08 22:04:26,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:04:26,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:04:26,273 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:04:26,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 22:04:28,010 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 5575 statements into 35 equivalence classes. [2025-03-08 22:04:28,468 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 231 of 5575 statements. [2025-03-08 22:04:28,468 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-08 22:04:28,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:04:28,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 22:04:28,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:04:32,680 INFO L134 CoverageAnalysis]: Checked inductivity of 195451 backedges. 0 proven. 99091 refuted. 0 times theorem prover too weak. 96360 trivial. 0 not checked. [2025-03-08 22:04:32,680 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:04:36,747 INFO L134 CoverageAnalysis]: Checked inductivity of 195451 backedges. 0 proven. 99091 refuted. 0 times theorem prover too weak. 96360 trivial. 0 not checked. [2025-03-08 22:04:36,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593975918] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:04:36,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:04:36,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2025-03-08 22:04:36,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279166121] [2025-03-08 22:04:36,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:04:36,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-08 22:04:36,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:04:36,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-08 22:04:36,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2025-03-08 22:04:36,784 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 401 [2025-03-08 22:04:36,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 753 transitions, 4751 flow. Second operand has 14 states, 14 states have (on average 369.92857142857144) internal successors, (5179), 14 states have internal predecessors, (5179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:04:36,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:04:36,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 401 [2025-03-08 22:04:36,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:04:54,366 INFO L124 PetriNetUnfolderBase]: 253/14996 cut-off events. [2025-03-08 22:04:54,366 INFO L125 PetriNetUnfolderBase]: For 6056/6077 co-relation queries the response was YES. [2025-03-08 22:04:54,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19185 conditions, 14996 events. 253/14996 cut-off events. For 6056/6077 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8079 event pairs, 0 based on Foata normal form. 3/14914 useless extension candidates. Maximal degree in co-relation 16933. Up to 345 conditions per place. [2025-03-08 22:04:54,390 INFO L140 encePairwiseOnDemand]: 395/401 looper letters, 19 selfloop transitions, 15 changer transitions 0/766 dead transitions. [2025-03-08 22:04:54,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 766 transitions, 4865 flow [2025-03-08 22:04:54,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-08 22:04:54,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-08 22:04:54,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 5557 transitions. [2025-03-08 22:04:54,393 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9238570241064007 [2025-03-08 22:04:54,394 INFO L175 Difference]: Start difference. First operand has 587 places, 753 transitions, 4751 flow. Second operand 15 states and 5557 transitions. [2025-03-08 22:04:54,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 766 transitions, 4865 flow [2025-03-08 22:04:54,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 766 transitions, 4511 flow, removed 51 selfloop flow, removed 42 redundant places. [2025-03-08 22:04:54,428 INFO L231 Difference]: Finished difference. Result has 563 places, 762 transitions, 4487 flow [2025-03-08 22:04:54,429 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=4397, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=744, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4487, PETRI_PLACES=563, PETRI_TRANSITIONS=762} [2025-03-08 22:04:54,429 INFO L279 CegarLoopForPetriNet]: 385 programPoint places, 178 predicate places. [2025-03-08 22:04:54,429 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 762 transitions, 4487 flow [2025-03-08 22:04:54,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 369.92857142857144) internal successors, (5179), 14 states have internal predecessors, (5179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:04:54,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:04:54,433 INFO L206 CegarLoopForPetriNet]: trace histogram [150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:04:54,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-08 22:04:54,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-08 22:04:54,634 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-08 22:04:54,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:04:54,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1177951363, now seen corresponding path program 4 times [2025-03-08 22:04:54,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:04:54,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316650794] [2025-03-08 22:04:54,672 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-08 22:04:54,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:04:56,087 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 13762 statements into 2 equivalence classes. [2025-03-08 22:04:57,861 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 13376 of 13762 statements. [2025-03-08 22:04:57,861 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-08 22:04:57,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat