./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/test-semi1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/test-semi1.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b8d952362e25e1ec421699ed1d237dd1d7a3724e3980d5a2557067ff115ae870 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:14:52,273 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:14:52,358 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:14:52,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:14:52,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:14:52,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:14:52,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:14:52,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:14:52,395 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:14:52,395 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:14:52,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:14:52,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:14:52,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:14:52,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:14:52,397 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:14:52,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:14:52,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:14:52,398 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:14:52,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:14:52,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:14:52,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:14:52,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:14:52,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:14:52,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:14:52,399 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:14:52,399 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:14:52,400 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:14:52,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:14:52,400 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:14:52,400 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:14:52,400 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:14:52,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:14:52,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:14:52,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:14:52,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:14:52,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:14:52,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:14:52,402 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:14:52,402 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:14:52,402 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:14:52,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:14:52,402 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:14:52,402 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:14:52,402 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:14:52,402 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:14:52,402 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-jdk21/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 ! overflow) ) 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 -> b8d952362e25e1ec421699ed1d237dd1d7a3724e3980d5a2557067ff115ae870 [2025-02-08 14:14:52,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:14:52,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:14:52,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:14:52,678 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:14:52,678 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:14:52,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-semi1.wvr.c [2025-02-08 14:14:53,885 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dcdb72d2a/897fc0329631467ca6bca46973ba5b41/FLAG15038d020 [2025-02-08 14:14:54,133 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:14:54,134 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/test-semi1.wvr.c [2025-02-08 14:14:54,139 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dcdb72d2a/897fc0329631467ca6bca46973ba5b41/FLAG15038d020 [2025-02-08 14:14:54,157 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dcdb72d2a/897fc0329631467ca6bca46973ba5b41 [2025-02-08 14:14:54,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:14:54,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:14:54,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:14:54,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:14:54,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:14:54,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@143f41b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54, skipping insertion in model container [2025-02-08 14:14:54,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,205 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:14:54,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:14:54,371 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:14:54,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:14:54,397 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:14:54,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54 WrapperNode [2025-02-08 14:14:54,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:14:54,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:14:54,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:14:54,400 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:14:54,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,410 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,429 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 65 [2025-02-08 14:14:54,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:14:54,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:14:54,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:14:54,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:14:54,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,442 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,452 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]. [2025-02-08 14:14:54,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,454 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:14:54,457 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:14:54,457 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:14:54,458 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:14:54,458 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (1/1) ... [2025-02-08 14:14:54,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:14:54,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:54,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:14:54,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:14:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:14:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:14:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:14:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:14:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:14:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:14:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:14:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:14:54,506 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:14:54,558 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:14:54,560 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:14:54,655 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:14:54,656 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:14:54,728 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:14:54,728 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:14:54,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:14:54 BoogieIcfgContainer [2025-02-08 14:14:54,728 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:14:54,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:14:54,731 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:14:54,734 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:14:54,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:14:54" (1/3) ... [2025-02-08 14:14:54,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d23f2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:14:54, skipping insertion in model container [2025-02-08 14:14:54,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:54" (2/3) ... [2025-02-08 14:14:54,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d23f2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:14:54, skipping insertion in model container [2025-02-08 14:14:54,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:14:54" (3/3) ... [2025-02-08 14:14:54,737 INFO L128 eAbstractionObserver]: Analyzing ICFG test-semi1.wvr.c [2025-02-08 14:14:54,750 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:14:54,751 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-semi1.wvr.c that has 3 procedures, 23 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-08 14:14:54,752 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:14:54,788 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 14:14:54,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 22 transitions, 58 flow [2025-02-08 14:14:54,836 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2025-02-08 14:14:54,838 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 14:14:54,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 20 events. 0/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-02-08 14:14:54,840 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 22 transitions, 58 flow [2025-02-08 14:14:54,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 18 transitions, 45 flow [2025-02-08 14:14:54,849 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:14:54,860 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;@9ec7705, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:14:54,861 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-02-08 14:14:54,865 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:14:54,865 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2025-02-08 14:14:54,865 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:14:54,866 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:54,866 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:14:54,867 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-02-08 14:14:54,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:54,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1926972998, now seen corresponding path program 1 times [2025-02-08 14:14:54,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:54,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923897703] [2025-02-08 14:14:54,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:54,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:54,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:14:54,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:14:54,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:54,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:55,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:55,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923897703] [2025-02-08 14:14:55,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923897703] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:55,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:55,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:14:55,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339464551] [2025-02-08 14:14:55,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:55,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:14:55,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:55,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:14:55,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:14:55,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2025-02-08 14:14:55,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 45 flow. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2025-02-08 14:14:55,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:55,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2025-02-08 14:14:55,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:55,221 INFO L124 PetriNetUnfolderBase]: 64/130 cut-off events. [2025-02-08 14:14:55,221 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-02-08 14:14:55,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 130 events. 64/130 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 471 event pairs, 64 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 237. Up to 127 conditions per place. [2025-02-08 14:14:55,227 INFO L140 encePairwiseOnDemand]: 19/22 looper letters, 14 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2025-02-08 14:14:55,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 17 transitions, 75 flow [2025-02-08 14:14:55,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:14:55,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:14:55,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2025-02-08 14:14:55,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32954545454545453 [2025-02-08 14:14:55,243 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 45 flow. Second operand 4 states and 29 transitions. [2025-02-08 14:14:55,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 17 transitions, 75 flow [2025-02-08 14:14:55,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 70 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:14:55,251 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 42 flow [2025-02-08 14:14:55,255 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=42, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2025-02-08 14:14:55,260 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, -1 predicate places. [2025-02-08 14:14:55,261 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 42 flow [2025-02-08 14:14:55,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2025-02-08 14:14:55,261 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:55,261 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:14:55,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:14:55,262 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-02-08 14:14:55,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:55,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1926972999, now seen corresponding path program 1 times [2025-02-08 14:14:55,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:55,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321303693] [2025-02-08 14:14:55,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:55,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:55,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:14:55,279 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:14:55,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:55,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:55,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:55,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:55,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321303693] [2025-02-08 14:14:55,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321303693] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:55,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:55,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:14:55,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898359648] [2025-02-08 14:14:55,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:55,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:14:55,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:55,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:14:55,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:14:55,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2025-02-08 14:14:55,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2025-02-08 14:14:55,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:55,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2025-02-08 14:14:55,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:55,363 INFO L124 PetriNetUnfolderBase]: 43/98 cut-off events. [2025-02-08 14:14:55,363 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:14:55,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 98 events. 43/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 316 event pairs, 9 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 196. Up to 70 conditions per place. [2025-02-08 14:14:55,364 INFO L140 encePairwiseOnDemand]: 15/22 looper letters, 15 selfloop transitions, 5 changer transitions 4/25 dead transitions. [2025-02-08 14:14:55,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 109 flow [2025-02-08 14:14:55,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:14:55,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:14:55,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2025-02-08 14:14:55,365 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5303030303030303 [2025-02-08 14:14:55,365 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 42 flow. Second operand 3 states and 35 transitions. [2025-02-08 14:14:55,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 109 flow [2025-02-08 14:14:55,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 25 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:14:55,367 INFO L231 Difference]: Finished difference. Result has 25 places, 15 transitions, 59 flow [2025-02-08 14:14:55,367 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=25, PETRI_TRANSITIONS=15} [2025-02-08 14:14:55,367 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2025-02-08 14:14:55,367 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 15 transitions, 59 flow [2025-02-08 14:14:55,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2025-02-08 14:14:55,368 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:55,368 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:55,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:14:55,368 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-02-08 14:14:55,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash 689834908, now seen corresponding path program 1 times [2025-02-08 14:14:55,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:55,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490942502] [2025-02-08 14:14:55,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:55,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:55,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:14:55,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:14:55,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:55,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:55,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:55,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:55,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490942502] [2025-02-08 14:14:55,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490942502] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:55,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:55,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:14:55,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149341826] [2025-02-08 14:14:55,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:55,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:14:55,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:55,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:14:55,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:14:55,415 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2025-02-08 14:14:55,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 15 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2025-02-08 14:14:55,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:55,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2025-02-08 14:14:55,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:55,449 INFO L124 PetriNetUnfolderBase]: 19/48 cut-off events. [2025-02-08 14:14:55,449 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2025-02-08 14:14:55,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 48 events. 19/48 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 6 based on Foata normal form. 7/55 useless extension candidates. Maximal degree in co-relation 113. Up to 26 conditions per place. [2025-02-08 14:14:55,452 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 13 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2025-02-08 14:14:55,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 94 flow [2025-02-08 14:14:55,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:14:55,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:14:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2025-02-08 14:14:55,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3939393939393939 [2025-02-08 14:14:55,453 INFO L175 Difference]: Start difference. First operand has 25 places, 15 transitions, 59 flow. Second operand 3 states and 26 transitions. [2025-02-08 14:14:55,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 94 flow [2025-02-08 14:14:55,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 79 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:14:55,454 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 43 flow [2025-02-08 14:14:55,454 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2025-02-08 14:14:55,455 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, -4 predicate places. [2025-02-08 14:14:55,455 INFO L471 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 43 flow [2025-02-08 14:14:55,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2025-02-08 14:14:55,455 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:55,455 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:55,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:14:55,455 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-02-08 14:14:55,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:55,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1813450144, now seen corresponding path program 1 times [2025-02-08 14:14:55,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:55,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009155755] [2025-02-08 14:14:55,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:55,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:55,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:14:55,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:14:55,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:55,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:55,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:55,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:55,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009155755] [2025-02-08 14:14:55,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009155755] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:55,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:55,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:14:55,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130720851] [2025-02-08 14:14:55,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:55,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:14:55,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:55,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:14:55,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:14:55,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2025-02-08 14:14:55,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2025-02-08 14:14:55,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:55,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2025-02-08 14:14:55,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:55,537 INFO L124 PetriNetUnfolderBase]: 14/38 cut-off events. [2025-02-08 14:14:55,537 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-02-08 14:14:55,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 38 events. 14/38 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 70 event pairs, 1 based on Foata normal form. 5/43 useless extension candidates. Maximal degree in co-relation 89. Up to 27 conditions per place. [2025-02-08 14:14:55,538 INFO L140 encePairwiseOnDemand]: 17/22 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2025-02-08 14:14:55,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 16 transitions, 81 flow [2025-02-08 14:14:55,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:14:55,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:14:55,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2025-02-08 14:14:55,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3181818181818182 [2025-02-08 14:14:55,538 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 43 flow. Second operand 4 states and 28 transitions. [2025-02-08 14:14:55,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 16 transitions, 81 flow [2025-02-08 14:14:55,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 69 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:14:55,539 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2025-02-08 14:14:55,539 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2025-02-08 14:14:55,540 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, -5 predicate places. [2025-02-08 14:14:55,540 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2025-02-08 14:14:55,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2025-02-08 14:14:55,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2025-02-08 14:14:55,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2025-02-08 14:14:55,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2025-02-08 14:14:55,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2025-02-08 14:14:55,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2025-02-08 14:14:55,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2025-02-08 14:14:55,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2025-02-08 14:14:55,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2025-02-08 14:14:55,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2025-02-08 14:14:55,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2025-02-08 14:14:55,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:14:55,543 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-08 14:14:55,547 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:14:55,547 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:14:55,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:14:55 BasicIcfg [2025-02-08 14:14:55,550 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:14:55,551 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:14:55,551 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:14:55,551 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:14:55,552 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:14:54" (3/4) ... [2025-02-08 14:14:55,553 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:14:55,554 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:14:55,554 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:14:55,556 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-02-08 14:14:55,556 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 14:14:55,556 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 14:14:55,556 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 14:14:55,602 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:14:55,603 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:14:55,603 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:14:55,603 INFO L158 Benchmark]: Toolchain (without parser) took 1443.24ms. Allocated memory was 604.0MB in the beginning and 201.3MB in the end (delta: -402.7MB). Free memory was 561.9MB in the beginning and 61.1MB in the end (delta: 500.8MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2025-02-08 14:14:55,603 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 218.1MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:14:55,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.85ms. Allocated memory was 604.0MB in the beginning and 201.3MB in the end (delta: -402.7MB). Free memory was 561.9MB in the beginning and 148.3MB in the end (delta: 413.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:14:55,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.80ms. Allocated memory is still 201.3MB. Free memory was 148.3MB in the beginning and 146.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:14:55,604 INFO L158 Benchmark]: Boogie Preprocessor took 23.96ms. Allocated memory is still 201.3MB. Free memory was 146.9MB in the beginning and 145.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:14:55,604 INFO L158 Benchmark]: IcfgBuilder took 271.12ms. Allocated memory is still 201.3MB. Free memory was 145.7MB in the beginning and 124.4MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 14:14:55,604 INFO L158 Benchmark]: TraceAbstraction took 819.62ms. Allocated memory is still 201.3MB. Free memory was 123.8MB in the beginning and 66.3MB in the end (delta: 57.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-08 14:14:55,605 INFO L158 Benchmark]: Witness Printer took 51.75ms. Allocated memory is still 201.3MB. Free memory was 66.3MB in the beginning and 61.1MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:14:55,606 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 218.1MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.85ms. Allocated memory was 604.0MB in the beginning and 201.3MB in the end (delta: -402.7MB). Free memory was 561.9MB in the beginning and 148.3MB in the end (delta: 413.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.80ms. Allocated memory is still 201.3MB. Free memory was 148.3MB in the beginning and 146.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.96ms. Allocated memory is still 201.3MB. Free memory was 146.9MB in the beginning and 145.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 271.12ms. Allocated memory is still 201.3MB. Free memory was 145.7MB in the beginning and 124.4MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 819.62ms. Allocated memory is still 201.3MB. Free memory was 123.8MB in the beginning and 66.3MB in the end (delta: 57.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 51.75ms. Allocated memory is still 201.3MB. Free memory was 66.3MB in the beginning and 61.1MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 37 locations, 10 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: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 0 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:14:55,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE