./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.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-ticket-3.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 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:04:30,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:04:31,018 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-14 01:04:31,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:04:31,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:04:31,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:04:31,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:04:31,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:04:31,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-14 01:04:31,051 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-14 01:04:31,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:04:31,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:04:31,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:04:31,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:04:31,052 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:04:31,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:04:31,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:04:31,053 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:04:31,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:04:31,053 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:04:31,053 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:04:31,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:04:31,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:04:31,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:04:31,053 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:04:31,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:04:31,053 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:04:31,054 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:04:31,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:04:31,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:04:31,054 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 -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2025-03-14 01:04:31,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:04:31,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:04:31,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:04:31,308 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:04:31,308 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:04:31,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-03-14 01:04:32,452 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34a702390/e5105cab1a7a49018c20d2bbe34d07e1/FLAG40e793be4 [2025-03-14 01:04:32,659 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:04:32,660 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-03-14 01:04:32,667 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34a702390/e5105cab1a7a49018c20d2bbe34d07e1/FLAG40e793be4 [2025-03-14 01:04:33,021 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34a702390/e5105cab1a7a49018c20d2bbe34d07e1 [2025-03-14 01:04:33,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:04:33,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:04:33,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:04:33,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:04:33,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:04:33,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e515944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33, skipping insertion in model container [2025-03-14 01:04:33,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:04:33,167 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-ticket-3.wvr.c[2331,2344] [2025-03-14 01:04:33,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:04:33,180 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:04:33,199 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-ticket-3.wvr.c[2331,2344] [2025-03-14 01:04:33,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:04:33,211 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:04:33,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33 WrapperNode [2025-03-14 01:04:33,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:04:33,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:04:33,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:04:33,213 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:04:33,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,248 INFO L138 Inliner]: procedures = 19, calls = 14, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 140 [2025-03-14 01:04:33,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:04:33,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:04:33,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:04:33,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:04:33,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,264 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,280 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 01:04:33,284 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,287 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:04:33,297 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:04:33,297 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:04:33,298 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:04:33,298 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (1/1) ... [2025-03-14 01:04:33,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:04:33,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:04:33,327 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 01:04:33,329 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 01:04:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:04:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-14 01:04:33,351 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-14 01:04:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-14 01:04:33,351 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-14 01:04:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-14 01:04:33,351 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-14 01:04:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-14 01:04:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:04:33,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:04:33,352 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 01:04:33,426 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:04:33,427 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:04:33,653 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:04:33,654 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:04:33,654 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:04:33,783 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:04:33,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:04:33 BoogieIcfgContainer [2025-03-14 01:04:33,783 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:04:33,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:04:33,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:04:33,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:04:33,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:04:33" (1/3) ... [2025-03-14 01:04:33,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b50f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:04:33, skipping insertion in model container [2025-03-14 01:04:33,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:04:33" (2/3) ... [2025-03-14 01:04:33,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b50f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:04:33, skipping insertion in model container [2025-03-14 01:04:33,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:04:33" (3/3) ... [2025-03-14 01:04:33,791 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2025-03-14 01:04:33,802 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:04:33,804 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-3.wvr.c that has 4 procedures, 46 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-14 01:04:33,804 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:04:33,851 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-14 01:04:33,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 47 transitions, 115 flow [2025-03-14 01:04:33,901 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2025-03-14 01:04:33,903 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-14 01:04:33,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 2/44 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2025-03-14 01:04:33,908 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 47 transitions, 115 flow [2025-03-14 01:04:33,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 43 transitions, 104 flow [2025-03-14 01:04:33,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:04:33,927 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;@1391d73e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:04:33,927 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-14 01:04:33,938 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:04:33,939 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2025-03-14 01:04:33,939 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-14 01:04:33,939 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:04:33,943 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] [2025-03-14 01:04:33,943 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 01:04:33,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:04:33,947 INFO L85 PathProgramCache]: Analyzing trace with hash 632659640, now seen corresponding path program 1 times [2025-03-14 01:04:33,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:04:33,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824791805] [2025-03-14 01:04:33,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:04:33,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:04:34,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-14 01:04:34,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-14 01:04:34,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:04:34,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:04:34,283 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 01:04:34,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:04:34,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824791805] [2025-03-14 01:04:34,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824791805] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:04:34,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:04:34,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 01:04:34,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012370106] [2025-03-14 01:04:34,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:04:34,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:04:34,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:04:34,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:04:34,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:04:34,310 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-14 01:04:34,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 01:04:34,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:04:34,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-14 01:04:34,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:04:34,654 INFO L124 PetriNetUnfolderBase]: 1948/3061 cut-off events. [2025-03-14 01:04:34,654 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2025-03-14 01:04:34,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6136 conditions, 3061 events. 1948/3061 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 16388 event pairs, 858 based on Foata normal form. 1/2959 useless extension candidates. Maximal degree in co-relation 5693. Up to 1547 conditions per place. [2025-03-14 01:04:34,676 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 51 selfloop transitions, 5 changer transitions 1/65 dead transitions. [2025-03-14 01:04:34,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 65 transitions, 274 flow [2025-03-14 01:04:34,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:04:34,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:04:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2025-03-14 01:04:34,687 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6453900709219859 [2025-03-14 01:04:34,689 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 104 flow. Second operand 3 states and 91 transitions. [2025-03-14 01:04:34,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 65 transitions, 274 flow [2025-03-14 01:04:34,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 65 transitions, 254 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-03-14 01:04:34,704 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 117 flow [2025-03-14 01:04:34,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2025-03-14 01:04:34,710 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2025-03-14 01:04:34,712 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 117 flow [2025-03-14 01:04:34,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 01:04:34,712 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:04:34,712 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] [2025-03-14 01:04:34,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:04:34,713 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 01:04:34,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:04:34,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1898157518, now seen corresponding path program 1 times [2025-03-14 01:04:34,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:04:34,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931433038] [2025-03-14 01:04:34,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:04:34,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:04:34,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:04:34,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:04:34,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:04:34,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:04:34,793 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 01:04:34,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:04:34,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931433038] [2025-03-14 01:04:34,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931433038] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:04:34,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:04:34,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 01:04:34,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845978094] [2025-03-14 01:04:34,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:04:34,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:04:34,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:04:34,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:04:34,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:04:34,805 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 47 [2025-03-14 01:04:34,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 01:04:34,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:04:34,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 47 [2025-03-14 01:04:34,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:04:35,078 INFO L124 PetriNetUnfolderBase]: 2293/3505 cut-off events. [2025-03-14 01:04:35,078 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2025-03-14 01:04:35,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7425 conditions, 3505 events. 2293/3505 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 17786 event pairs, 1673 based on Foata normal form. 0/3460 useless extension candidates. Maximal degree in co-relation 4808. Up to 3012 conditions per place. [2025-03-14 01:04:35,089 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 54 selfloop transitions, 7 changer transitions 0/65 dead transitions. [2025-03-14 01:04:35,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 65 transitions, 291 flow [2025-03-14 01:04:35,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:04:35,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:04:35,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2025-03-14 01:04:35,092 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5673758865248227 [2025-03-14 01:04:35,092 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 117 flow. Second operand 3 states and 80 transitions. [2025-03-14 01:04:35,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 65 transitions, 291 flow [2025-03-14 01:04:35,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 65 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:04:35,094 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 156 flow [2025-03-14 01:04:35,094 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2025-03-14 01:04:35,095 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2025-03-14 01:04:35,095 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 156 flow [2025-03-14 01:04:35,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 01:04:35,095 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:04:35,095 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] [2025-03-14 01:04:35,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:04:35,096 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 01:04:35,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:04:35,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1930786932, now seen corresponding path program 1 times [2025-03-14 01:04:35,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:04:35,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368673042] [2025-03-14 01:04:35,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:04:35,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:04:35,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:04:35,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:04:35,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:04:35,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:04:35,269 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 01:04:35,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:04:35,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368673042] [2025-03-14 01:04:35,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368673042] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:04:35,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:04:35,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 01:04:35,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544153440] [2025-03-14 01:04:35,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:04:35,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:04:35,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:04:35,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:04:35,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:04:35,271 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-14 01:04:35,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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 01:04:35,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:04:35,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-14 01:04:35,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:04:35,709 INFO L124 PetriNetUnfolderBase]: 2768/4506 cut-off events. [2025-03-14 01:04:35,709 INFO L125 PetriNetUnfolderBase]: For 1505/1509 co-relation queries the response was YES. [2025-03-14 01:04:35,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10349 conditions, 4506 events. 2768/4506 cut-off events. For 1505/1509 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 26697 event pairs, 604 based on Foata normal form. 26/4464 useless extension candidates. Maximal degree in co-relation 6384. Up to 1835 conditions per place. [2025-03-14 01:04:35,733 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 80 selfloop transitions, 21 changer transitions 3/114 dead transitions. [2025-03-14 01:04:35,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 114 transitions, 555 flow [2025-03-14 01:04:35,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:04:35,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:04:35,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2025-03-14 01:04:35,737 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5709219858156028 [2025-03-14 01:04:35,738 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 156 flow. Second operand 6 states and 161 transitions. [2025-03-14 01:04:35,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 114 transitions, 555 flow [2025-03-14 01:04:35,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 114 transitions, 529 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:04:35,748 INFO L231 Difference]: Finished difference. Result has 55 places, 62 transitions, 221 flow [2025-03-14 01:04:35,749 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=55, PETRI_TRANSITIONS=62} [2025-03-14 01:04:35,749 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 4 predicate places. [2025-03-14 01:04:35,750 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 62 transitions, 221 flow [2025-03-14 01:04:35,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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 01:04:35,750 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:04:35,750 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] [2025-03-14 01:04:35,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:04:35,751 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 01:04:35,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:04:35,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1191298344, now seen corresponding path program 2 times [2025-03-14 01:04:35,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:04:35,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705090876] [2025-03-14 01:04:35,752 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:04:35,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:04:35,767 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:04:35,783 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:04:35,783 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:04:35,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:04:35,938 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 01:04:35,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:04:35,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705090876] [2025-03-14 01:04:35,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705090876] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:04:35,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:04:35,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:04:35,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123509484] [2025-03-14 01:04:35,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:04:35,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 01:04:35,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:04:35,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 01:04:35,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-14 01:04:35,939 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-14 01:04:35,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 62 transitions, 221 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:04:35,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:04:35,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-14 01:04:35,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:04:36,379 INFO L124 PetriNetUnfolderBase]: 3433/5678 cut-off events. [2025-03-14 01:04:36,380 INFO L125 PetriNetUnfolderBase]: For 2124/2132 co-relation queries the response was YES. [2025-03-14 01:04:36,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14048 conditions, 5678 events. 3433/5678 cut-off events. For 2124/2132 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 35909 event pairs, 926 based on Foata normal form. 62/5642 useless extension candidates. Maximal degree in co-relation 9317. Up to 1972 conditions per place. [2025-03-14 01:04:36,401 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 83 selfloop transitions, 23 changer transitions 11/127 dead transitions. [2025-03-14 01:04:36,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 127 transitions, 666 flow [2025-03-14 01:04:36,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-14 01:04:36,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-14 01:04:36,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2025-03-14 01:04:36,403 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6340425531914894 [2025-03-14 01:04:36,404 INFO L175 Difference]: Start difference. First operand has 55 places, 62 transitions, 221 flow. Second operand 5 states and 149 transitions. [2025-03-14 01:04:36,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 127 transitions, 666 flow [2025-03-14 01:04:36,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 127 transitions, 660 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:04:36,408 INFO L231 Difference]: Finished difference. Result has 60 places, 73 transitions, 346 flow [2025-03-14 01:04:36,408 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=346, PETRI_PLACES=60, PETRI_TRANSITIONS=73} [2025-03-14 01:04:36,409 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2025-03-14 01:04:36,409 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 73 transitions, 346 flow [2025-03-14 01:04:36,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:04:36,409 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:04:36,409 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] [2025-03-14 01:04:36,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 01:04:36,409 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 01:04:36,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:04:36,410 INFO L85 PathProgramCache]: Analyzing trace with hash -2036542814, now seen corresponding path program 2 times [2025-03-14 01:04:36,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:04:36,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259794398] [2025-03-14 01:04:36,411 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:04:36,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:04:36,419 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:04:36,431 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:04:36,431 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:04:36,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:04:36,560 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 01:04:36,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:04:36,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259794398] [2025-03-14 01:04:36,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259794398] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:04:36,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:04:36,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:04:36,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218036288] [2025-03-14 01:04:36,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:04:36,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 01:04:36,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:04:36,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 01:04:36,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-14 01:04:36,563 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-14 01:04:36,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 73 transitions, 346 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:04:36,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:04:36,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-14 01:04:36,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:04:36,952 INFO L124 PetriNetUnfolderBase]: 2839/4796 cut-off events. [2025-03-14 01:04:36,953 INFO L125 PetriNetUnfolderBase]: For 4790/4790 co-relation queries the response was YES. [2025-03-14 01:04:36,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13511 conditions, 4796 events. 2839/4796 cut-off events. For 4790/4790 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 29996 event pairs, 785 based on Foata normal form. 78/4813 useless extension candidates. Maximal degree in co-relation 8773. Up to 1604 conditions per place. [2025-03-14 01:04:36,971 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 80 selfloop transitions, 24 changer transitions 12/126 dead transitions. [2025-03-14 01:04:36,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 126 transitions, 770 flow [2025-03-14 01:04:36,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-14 01:04:36,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-14 01:04:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 146 transitions. [2025-03-14 01:04:36,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6212765957446809 [2025-03-14 01:04:36,974 INFO L175 Difference]: Start difference. First operand has 60 places, 73 transitions, 346 flow. Second operand 5 states and 146 transitions. [2025-03-14 01:04:36,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 126 transitions, 770 flow [2025-03-14 01:04:36,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 126 transitions, 757 flow, removed 4 selfloop flow, removed 1 redundant places. [2025-03-14 01:04:36,981 INFO L231 Difference]: Finished difference. Result has 64 places, 74 transitions, 402 flow [2025-03-14 01:04:36,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=402, PETRI_PLACES=64, PETRI_TRANSITIONS=74} [2025-03-14 01:04:36,982 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 13 predicate places. [2025-03-14 01:04:36,983 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 74 transitions, 402 flow [2025-03-14 01:04:36,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:04:36,983 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:04:36,983 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] [2025-03-14 01:04:36,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 01:04:36,983 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 01:04:36,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:04:36,986 INFO L85 PathProgramCache]: Analyzing trace with hash -523358514, now seen corresponding path program 3 times [2025-03-14 01:04:36,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:04:36,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349360710] [2025-03-14 01:04:36,986 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:04:36,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:04:36,993 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:04:37,000 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:04:37,001 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:04:37,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:04:37,083 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 01:04:37,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:04:37,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349360710] [2025-03-14 01:04:37,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349360710] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:04:37,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:04:37,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:04:37,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138089056] [2025-03-14 01:04:37,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:04:37,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 01:04:37,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:04:37,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 01:04:37,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-14 01:04:37,085 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-14 01:04:37,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 74 transitions, 402 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:04:37,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:04:37,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-14 01:04:37,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:04:37,296 INFO L124 PetriNetUnfolderBase]: 1303/2252 cut-off events. [2025-03-14 01:04:37,296 INFO L125 PetriNetUnfolderBase]: For 2619/2619 co-relation queries the response was YES. [2025-03-14 01:04:37,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6507 conditions, 2252 events. 1303/2252 cut-off events. For 2619/2619 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12036 event pairs, 424 based on Foata normal form. 40/2275 useless extension candidates. Maximal degree in co-relation 5183. Up to 884 conditions per place. [2025-03-14 01:04:37,306 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 59 selfloop transitions, 23 changer transitions 17/109 dead transitions. [2025-03-14 01:04:37,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 109 transitions, 709 flow [2025-03-14 01:04:37,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-14 01:04:37,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-14 01:04:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2025-03-14 01:04:37,307 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5957446808510638 [2025-03-14 01:04:37,307 INFO L175 Difference]: Start difference. First operand has 64 places, 74 transitions, 402 flow. Second operand 5 states and 140 transitions. [2025-03-14 01:04:37,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 109 transitions, 709 flow [2025-03-14 01:04:37,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 109 transitions, 671 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-14 01:04:37,314 INFO L231 Difference]: Finished difference. Result has 66 places, 66 transitions, 379 flow [2025-03-14 01:04:37,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=379, PETRI_PLACES=66, PETRI_TRANSITIONS=66} [2025-03-14 01:04:37,314 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 15 predicate places. [2025-03-14 01:04:37,314 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 66 transitions, 379 flow [2025-03-14 01:04:37,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:04:37,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:04:37,315 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] [2025-03-14 01:04:37,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 01:04:37,315 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 01:04:37,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:04:37,316 INFO L85 PathProgramCache]: Analyzing trace with hash 606672572, now seen corresponding path program 4 times [2025-03-14 01:04:37,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:04:37,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555775649] [2025-03-14 01:04:37,317 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:04:37,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:04:37,324 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 40 statements into 2 equivalence classes. [2025-03-14 01:04:37,337 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:04:37,337 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:04:37,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:04:37,478 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 01:04:37,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:04:37,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555775649] [2025-03-14 01:04:37,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555775649] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:04:37,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:04:37,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 01:04:37,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100266065] [2025-03-14 01:04:37,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:04:37,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:04:37,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:04:37,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:04:37,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:04:37,480 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-14 01:04:37,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 66 transitions, 379 flow. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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 01:04:37,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:04:37,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-14 01:04:37,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:04:37,684 INFO L124 PetriNetUnfolderBase]: 1136/1951 cut-off events. [2025-03-14 01:04:37,685 INFO L125 PetriNetUnfolderBase]: For 2556/2556 co-relation queries the response was YES. [2025-03-14 01:04:37,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5789 conditions, 1951 events. 1136/1951 cut-off events. For 2556/2556 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 10089 event pairs, 335 based on Foata normal form. 16/1930 useless extension candidates. Maximal degree in co-relation 2247. Up to 750 conditions per place. [2025-03-14 01:04:37,690 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 62 selfloop transitions, 26 changer transitions 11/109 dead transitions. [2025-03-14 01:04:37,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 109 transitions, 717 flow [2025-03-14 01:04:37,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:04:37,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:04:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 157 transitions. [2025-03-14 01:04:37,692 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5567375886524822 [2025-03-14 01:04:37,692 INFO L175 Difference]: Start difference. First operand has 66 places, 66 transitions, 379 flow. Second operand 6 states and 157 transitions. [2025-03-14 01:04:37,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 109 transitions, 717 flow [2025-03-14 01:04:37,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 109 transitions, 683 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-14 01:04:37,697 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 386 flow [2025-03-14 01:04:37,697 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2025-03-14 01:04:37,697 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 18 predicate places. [2025-03-14 01:04:37,698 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 386 flow [2025-03-14 01:04:37,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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 01:04:37,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:04:37,698 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] [2025-03-14 01:04:37,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-14 01:04:37,699 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 01:04:37,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:04:37,699 INFO L85 PathProgramCache]: Analyzing trace with hash 273665806, now seen corresponding path program 5 times [2025-03-14 01:04:37,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:04:37,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984181768] [2025-03-14 01:04:37,699 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:04:37,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:04:37,709 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:04:37,714 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:04:37,714 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:04:37,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:04:37,792 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 01:04:37,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:04:37,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984181768] [2025-03-14 01:04:37,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984181768] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:04:37,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:04:37,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 01:04:37,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117617111] [2025-03-14 01:04:37,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:04:37,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 01:04:37,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:04:37,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 01:04:37,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-14 01:04:37,795 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-14 01:04:37,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 386 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:04:37,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:04:37,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-14 01:04:37,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:04:38,036 INFO L124 PetriNetUnfolderBase]: 1063/1841 cut-off events. [2025-03-14 01:04:38,038 INFO L125 PetriNetUnfolderBase]: For 3285/3285 co-relation queries the response was YES. [2025-03-14 01:04:38,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5440 conditions, 1841 events. 1063/1841 cut-off events. For 3285/3285 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 9534 event pairs, 317 based on Foata normal form. 16/1828 useless extension candidates. Maximal degree in co-relation 2174. Up to 676 conditions per place. [2025-03-14 01:04:38,044 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 60 selfloop transitions, 24 changer transitions 16/110 dead transitions. [2025-03-14 01:04:38,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 110 transitions, 736 flow [2025-03-14 01:04:38,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-14 01:04:38,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-14 01:04:38,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 183 transitions. [2025-03-14 01:04:38,049 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4867021276595745 [2025-03-14 01:04:38,049 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 386 flow. Second operand 8 states and 183 transitions. [2025-03-14 01:04:38,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 110 transitions, 736 flow [2025-03-14 01:04:38,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 110 transitions, 682 flow, removed 3 selfloop flow, removed 5 redundant places. [2025-03-14 01:04:38,055 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 369 flow [2025-03-14 01:04:38,055 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=369, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2025-03-14 01:04:38,056 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 21 predicate places. [2025-03-14 01:04:38,057 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 369 flow [2025-03-14 01:04:38,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:04:38,057 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:04:38,057 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] [2025-03-14 01:04:38,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-14 01:04:38,058 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 01:04:38,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:04:38,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1134753332, now seen corresponding path program 6 times [2025-03-14 01:04:38,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:04:38,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929477441] [2025-03-14 01:04:38,058 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:04:38,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:04:38,065 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:04:38,070 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:04:38,070 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:04:38,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:04:38,165 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 01:04:38,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:04:38,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929477441] [2025-03-14 01:04:38,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929477441] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:04:38,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:04:38,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 01:04:38,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904321147] [2025-03-14 01:04:38,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:04:38,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 01:04:38,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:04:38,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 01:04:38,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-14 01:04:38,167 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-14 01:04:38,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 369 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:04:38,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:04:38,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-14 01:04:38,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:04:38,387 INFO L124 PetriNetUnfolderBase]: 731/1315 cut-off events. [2025-03-14 01:04:38,387 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2025-03-14 01:04:38,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3890 conditions, 1315 events. 731/1315 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6332 event pairs, 216 based on Foata normal form. 32/1334 useless extension candidates. Maximal degree in co-relation 1688. Up to 440 conditions per place. [2025-03-14 01:04:38,392 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 50 selfloop transitions, 14 changer transitions 33/105 dead transitions. [2025-03-14 01:04:38,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 105 transitions, 723 flow [2025-03-14 01:04:38,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-14 01:04:38,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-14 01:04:38,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 182 transitions. [2025-03-14 01:04:38,394 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48404255319148937 [2025-03-14 01:04:38,395 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 369 flow. Second operand 8 states and 182 transitions. [2025-03-14 01:04:38,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 105 transitions, 723 flow [2025-03-14 01:04:38,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 105 transitions, 657 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-14 01:04:38,399 INFO L231 Difference]: Finished difference. Result has 71 places, 48 transitions, 247 flow [2025-03-14 01:04:38,399 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=247, PETRI_PLACES=71, PETRI_TRANSITIONS=48} [2025-03-14 01:04:38,401 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2025-03-14 01:04:38,401 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 48 transitions, 247 flow [2025-03-14 01:04:38,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:04:38,401 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:04:38,401 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] [2025-03-14 01:04:38,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-14 01:04:38,402 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 01:04:38,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:04:38,403 INFO L85 PathProgramCache]: Analyzing trace with hash 248874422, now seen corresponding path program 3 times [2025-03-14 01:04:38,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:04:38,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275120420] [2025-03-14 01:04:38,403 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:04:38,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:04:38,414 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:04:38,420 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:04:38,421 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:04:38,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:04:38,506 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 01:04:38,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:04:38,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275120420] [2025-03-14 01:04:38,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275120420] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:04:38,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:04:38,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 01:04:38,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717870267] [2025-03-14 01:04:38,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:04:38,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 01:04:38,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:04:38,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 01:04:38,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-14 01:04:38,507 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-14 01:04:38,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 48 transitions, 247 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:04:38,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:04:38,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-14 01:04:38,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:04:38,651 INFO L124 PetriNetUnfolderBase]: 185/377 cut-off events. [2025-03-14 01:04:38,652 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES. [2025-03-14 01:04:38,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 377 events. 185/377 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1311 event pairs, 60 based on Foata normal form. 32/407 useless extension candidates. Maximal degree in co-relation 689. Up to 125 conditions per place. [2025-03-14 01:04:38,653 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2025-03-14 01:04:38,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 68 transitions, 429 flow [2025-03-14 01:04:38,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-14 01:04:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-14 01:04:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2025-03-14 01:04:38,655 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40691489361702127 [2025-03-14 01:04:38,655 INFO L175 Difference]: Start difference. First operand has 71 places, 48 transitions, 247 flow. Second operand 8 states and 153 transitions. [2025-03-14 01:04:38,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 68 transitions, 429 flow [2025-03-14 01:04:38,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 68 transitions, 338 flow, removed 11 selfloop flow, removed 13 redundant places. [2025-03-14 01:04:38,657 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2025-03-14 01:04:38,657 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2025-03-14 01:04:38,657 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2025-03-14 01:04:38,657 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2025-03-14 01:04:38,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:04:38,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-03-14 01:04:38,663 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-03-14 01:04:38,663 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-03-14 01:04:38,663 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-03-14 01:04:38,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-14 01:04:38,663 INFO L422 BasicCegarLoop]: Path program histogram: [6, 3, 1] [2025-03-14 01:04:38,667 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 01:04:38,667 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 01:04:38,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 01:04:38 BasicIcfg [2025-03-14 01:04:38,673 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 01:04:38,673 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-14 01:04:38,674 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-14 01:04:38,674 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-14 01:04:38,675 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:04:33" (3/4) ... [2025-03-14 01:04:38,676 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-14 01:04:38,679 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-14 01:04:38,680 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-14 01:04:38,680 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-14 01:04:38,682 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2025-03-14 01:04:38,683 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-14 01:04:38,683 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-14 01:04:38,683 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-14 01:04:38,744 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-14 01:04:38,744 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-14 01:04:38,744 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-14 01:04:38,745 INFO L158 Benchmark]: Toolchain (without parser) took 5720.34ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 106.3MB in the beginning and 386.1MB in the end (delta: -279.8MB). Peak memory consumption was 119.9MB. Max. memory is 16.1GB. [2025-03-14 01:04:38,745 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:04:38,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.98ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 94.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 01:04:38,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.93ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 93.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:04:38,746 INFO L158 Benchmark]: Boogie Preprocessor took 44.88ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 91.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 01:04:38,746 INFO L158 Benchmark]: IcfgBuilder took 486.75ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 57.0MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-14 01:04:38,747 INFO L158 Benchmark]: TraceAbstraction took 4887.78ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 57.0MB in the beginning and 389.6MB in the end (delta: -332.7MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2025-03-14 01:04:38,747 INFO L158 Benchmark]: Witness Printer took 70.63ms. Allocated memory is still 545.3MB. Free memory was 389.6MB in the beginning and 386.1MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:04:38,748 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.98ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 94.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.93ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 93.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.88ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 91.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 486.75ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 57.0MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4887.78ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 57.0MB in the beginning and 389.6MB in the end (delta: -332.7MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. * Witness Printer took 70.63ms. Allocated memory is still 545.3MB. Free memory was 389.6MB in the beginning and 386.1MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 94]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 73 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 396 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 390 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1723 IncrementalHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 4 mSDtfsCounter, 1723 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=5, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 399 NumberOfCodeBlocks, 399 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 923 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-14 01:04:38,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE