./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 735b3cc8 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:03:08,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:03:08,673 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-14 01:03:08,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:03:08,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:03:08,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:03:08,702 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:03:08,702 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:03:08,702 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-14 01:03:08,703 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-14 01:03:08,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:03:08,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:03:08,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:03:08,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:03:08,704 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:03:08,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:03:08,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:03:08,705 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:03:08,705 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:03:08,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:03:08,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:03:08,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:03:08,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:03:08,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:03:08,705 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:03:08,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:03:08,705 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:03:08,705 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:03:08,706 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:03:08,706 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:03:08,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-14 01:03:08,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:03:08,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:03:08,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:03:08,707 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:03:08,707 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:03:08,707 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:03:08,707 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:03:08,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:03:08,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:03:08,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:03:08,707 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:03:08,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:03:08,707 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 ! call(reach_error())) ) 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 -> a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a [2025-03-14 01:03:08,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:03:08,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:03:08,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:03:08,960 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:03:08,960 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:03:08,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2025-03-14 01:03:10,114 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f76e6a07a/6b83061309694f37ba13aaa21ce1ad34/FLAG67896453f [2025-03-14 01:03:10,329 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:03:10,330 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2025-03-14 01:03:10,340 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f76e6a07a/6b83061309694f37ba13aaa21ce1ad34/FLAG67896453f [2025-03-14 01:03:10,356 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f76e6a07a/6b83061309694f37ba13aaa21ce1ad34 [2025-03-14 01:03:10,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:03:10,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:03:10,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:03:10,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:03:10,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:03:10,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79da9237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10, skipping insertion in model container [2025-03-14 01:03:10,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,386 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:03:10,523 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c[3922,3935] [2025-03-14 01:03:10,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:03:10,536 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:03:10,563 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c[3922,3935] [2025-03-14 01:03:10,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:03:10,578 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:03:10,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10 WrapperNode [2025-03-14 01:03:10,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:03:10,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:03:10,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:03:10,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:03:10,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,611 INFO L138 Inliner]: procedures = 22, calls = 22, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 223 [2025-03-14 01:03:10,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:03:10,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:03:10,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:03:10,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:03:10,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,624 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,643 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-14 01:03:10,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,651 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:03:10,661 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:03:10,661 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:03:10,661 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:03:10,662 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (1/1) ... [2025-03-14 01:03:10,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:03:10,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:03:10,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-14 01:03:10,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-14 01:03:10,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:03:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-14 01:03:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-14 01:03:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-14 01:03:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-14 01:03:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-14 01:03:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-14 01:03:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-03-14 01:03:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-03-14 01:03:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-14 01:03:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-03-14 01:03:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-03-14 01:03:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-03-14 01:03:10,705 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-03-14 01:03:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:03:10,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:03:10,706 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:03:10,791 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:03:10,792 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:03:11,092 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:03:11,093 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:03:11,093 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:03:11,293 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:03:11,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:03:11 BoogieIcfgContainer [2025-03-14 01:03:11,295 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:03:11,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:03:11,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:03:11,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:03:11,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:03:10" (1/3) ... [2025-03-14 01:03:11,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409a2941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:03:11, skipping insertion in model container [2025-03-14 01:03:11,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:03:10" (2/3) ... [2025-03-14 01:03:11,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409a2941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:03:11, skipping insertion in model container [2025-03-14 01:03:11,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:03:11" (3/3) ... [2025-03-14 01:03:11,304 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2025-03-14 01:03:11,315 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:03:11,316 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-barrier-loop.wvr.c that has 7 procedures, 95 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-14 01:03:11,316 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:03:11,405 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-03-14 01:03:11,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 112 transitions, 290 flow [2025-03-14 01:03:11,471 INFO L124 PetriNetUnfolderBase]: 12/100 cut-off events. [2025-03-14 01:03:11,475 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-14 01:03:11,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 100 events. 12/100 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 238 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 3 conditions per place. [2025-03-14 01:03:11,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 112 transitions, 290 flow [2025-03-14 01:03:11,485 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 99 transitions, 246 flow [2025-03-14 01:03:11,491 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:03:11,504 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;@442d3c55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:03:11,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-03-14 01:03:11,557 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:03:11,560 INFO L124 PetriNetUnfolderBase]: 12/98 cut-off events. [2025-03-14 01:03:11,560 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-14 01:03:11,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:03:11,562 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] [2025-03-14 01:03:11,563 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-03-14 01:03:11,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:03:11,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1667971580, now seen corresponding path program 1 times [2025-03-14 01:03:11,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:03:11,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17157656] [2025-03-14 01:03:11,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:03:11,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:03:11,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-14 01:03:11,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-14 01:03:11,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:03:11,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:03:11,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:03:11,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:03:11,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17157656] [2025-03-14 01:03:11,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17157656] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:03:11,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:03:11,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:03:11,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141021097] [2025-03-14 01:03:11,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:03:11,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 01:03:11,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:03:11,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 01:03:11,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 01:03:11,798 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 116 [2025-03-14 01:03:11,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 99 transitions, 246 flow. Second operand has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:03:11,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:03:11,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 116 [2025-03-14 01:03:11,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand