./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i --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/goblint-regression/04-mutex_43-thread_create_nr.i -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 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:03:52,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:03:52,860 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:03:52,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:03:52,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:03:52,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:03:52,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:03:52,893 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:03:52,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:03:52,894 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:03:52,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:03:52,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:03:52,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:03:52,897 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:03:52,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:03:52,898 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:03:52,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:03:52,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:03:52,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:03:52,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:03:52,899 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:03:52,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:03:52,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:03:52,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:03:52,899 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:03:52,899 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:03:52,899 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:03:52,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:03:52,899 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 -> 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 [2025-02-08 14:03:53,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:03:53,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:03:53,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:03:53,154 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:03:53,155 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:03:53,156 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i [2025-02-08 14:03:54,342 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/771191dfe/ed0275ff89dd48fbbf71bc627f0237ce/FLAG068bfb71a [2025-02-08 14:03:54,666 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:03:54,666 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i [2025-02-08 14:03:54,680 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/771191dfe/ed0275ff89dd48fbbf71bc627f0237ce/FLAG068bfb71a [2025-02-08 14:03:54,695 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/771191dfe/ed0275ff89dd48fbbf71bc627f0237ce [2025-02-08 14:03:54,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:03:54,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:03:54,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:03:54,700 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:03:54,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:03:54,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:03:54" (1/1) ... [2025-02-08 14:03:54,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29785afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:54, skipping insertion in model container [2025-02-08 14:03:54,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:03:54" (1/1) ... [2025-02-08 14:03:54,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:03:55,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:03:55,059 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:03:55,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:03:55,138 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:03:55,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55 WrapperNode [2025-02-08 14:03:55,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:03:55,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:03:55,139 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:03:55,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:03:55,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,169 INFO L138 Inliner]: procedures = 262, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 86 [2025-02-08 14:03:55,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:03:55,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:03:55,170 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:03:55,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:03:55,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,185 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,197 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [5]. The 0 writes are split as follows [0]. [2025-02-08 14:03:55,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,201 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,202 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,203 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:03:55,205 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:03:55,205 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:03:55,205 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:03:55,205 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (1/1) ... [2025-02-08 14:03:55,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:03:55,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:03:55,239 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 14:03:55,244 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 14:03:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:03:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:03:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:03:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 14:03:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 14:03:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:03:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:03:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:03:55,258 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 14:03:55,354 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:03:55,355 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:03:55,485 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:03:55,485 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:03:55,609 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:03:55,610 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:03:55,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:03:55 BoogieIcfgContainer [2025-02-08 14:03:55,610 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:03:55,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:03:55,613 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:03:55,617 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:03:55,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:03:54" (1/3) ... [2025-02-08 14:03:55,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c20a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:03:55, skipping insertion in model container [2025-02-08 14:03:55,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:55" (2/3) ... [2025-02-08 14:03:55,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c20a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:03:55, skipping insertion in model container [2025-02-08 14:03:55,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:03:55" (3/3) ... [2025-02-08 14:03:55,620 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_43-thread_create_nr.i [2025-02-08 14:03:55,633 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:03:55,634 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_43-thread_create_nr.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-02-08 14:03:55,635 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:03:55,657 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 14:03:55,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 21 transitions, 46 flow [2025-02-08 14:03:55,722 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2025-02-08 14:03:55,723 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:03:55,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-02-08 14:03:55,725 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 21 transitions, 46 flow [2025-02-08 14:03:55,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2025-02-08 14:03:55,735 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:03:55,752 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;@47c252b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:03:55,752 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-02-08 14:03:55,755 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:03:55,755 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2025-02-08 14:03:55,755 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:03:55,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:55,760 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2025-02-08 14:03:55,760 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-02-08 14:03:55,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:55,769 INFO L85 PathProgramCache]: Analyzing trace with hash 7375, now seen corresponding path program 1 times [2025-02-08 14:03:55,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:55,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300599105] [2025-02-08 14:03:55,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:55,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:55,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:03:55,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:03:55,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:55,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:56,093 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 14:03:56,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:56,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300599105] [2025-02-08 14:03:56,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300599105] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:56,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:56,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:03:56,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764953947] [2025-02-08 14:03:56,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:56,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:03:56,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:56,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:03:56,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:03:56,122 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 21 [2025-02-08 14:03:56,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 14:03:56,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:56,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 21 [2025-02-08 14:03:56,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:56,153 INFO L124 PetriNetUnfolderBase]: 12/54 cut-off events. [2025-02-08 14:03:56,153 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:03:56,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 54 events. 12/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 188 event pairs, 12 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 82. Up to 35 conditions per place. [2025-02-08 14:03:56,155 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 9 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2025-02-08 14:03:56,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 61 flow [2025-02-08 14:03:56,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:03:56,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:03:56,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2025-02-08 14:03:56,162 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2025-02-08 14:03:56,163 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 3 states and 37 transitions. [2025-02-08 14:03:56,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 61 flow [2025-02-08 14:03:56,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:03:56,167 INFO L231 Difference]: Finished difference. Result has 23 places, 18 transitions, 42 flow [2025-02-08 14:03:56,168 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=18} [2025-02-08 14:03:56,170 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2025-02-08 14:03:56,170 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 18 transitions, 42 flow [2025-02-08 14:03:56,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 14:03:56,171 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:56,171 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:03:56,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:03:56,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-02-08 14:03:56,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1773347505, now seen corresponding path program 1 times [2025-02-08 14:03:56,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:56,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43530335] [2025-02-08 14:03:56,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:56,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:56,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:03:56,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:03:56,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:56,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:56,290 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 14:03:56,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:56,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43530335] [2025-02-08 14:03:56,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43530335] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:56,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:56,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:03:56,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352928217] [2025-02-08 14:03:56,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:56,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:03:56,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:56,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:03:56,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:03:56,296 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 21 [2025-02-08 14:03:56,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 18 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 14:03:56,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:56,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 21 [2025-02-08 14:03:56,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:56,380 INFO L124 PetriNetUnfolderBase]: 8/36 cut-off events. [2025-02-08 14:03:56,380 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:03:56,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 36 events. 8/36 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 5/40 useless extension candidates. Maximal degree in co-relation 58. Up to 10 conditions per place. [2025-02-08 14:03:56,380 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 5 selfloop transitions, 3 changer transitions 9/24 dead transitions. [2025-02-08 14:03:56,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 24 transitions, 88 flow [2025-02-08 14:03:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:03:56,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:03:56,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 59 transitions. [2025-02-08 14:03:56,386 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2025-02-08 14:03:56,386 INFO L175 Difference]: Start difference. First operand has 23 places, 18 transitions, 42 flow. Second operand 4 states and 59 transitions. [2025-02-08 14:03:56,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 24 transitions, 88 flow [2025-02-08 14:03:56,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 24 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:03:56,386 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 34 flow [2025-02-08 14:03:56,386 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=34, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2025-02-08 14:03:56,387 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2025-02-08 14:03:56,387 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 34 flow [2025-02-08 14:03:56,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 14:03:56,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:56,387 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:56,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:03:56,387 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-02-08 14:03:56,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash 915580643, now seen corresponding path program 1 times [2025-02-08 14:03:56,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:56,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489865910] [2025-02-08 14:03:56,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:56,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:56,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:03:56,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:03:56,496 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:56,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:56,548 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 14:03:56,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:56,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489865910] [2025-02-08 14:03:56,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489865910] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:56,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:56,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:03:56,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052546624] [2025-02-08 14:03:56,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:56,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:03:56,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:56,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:03:56,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:03:56,561 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 21 [2025-02-08 14:03:56,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 13 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 14:03:56,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:56,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 21 [2025-02-08 14:03:56,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:56,581 INFO L124 PetriNetUnfolderBase]: 4/22 cut-off events. [2025-02-08 14:03:56,581 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 14:03:56,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 22 events. 4/22 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 4 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 36. Up to 14 conditions per place. [2025-02-08 14:03:56,582 INFO L140 encePairwiseOnDemand]: 18/21 looper letters, 5 selfloop transitions, 2 changer transitions 0/12 dead transitions. [2025-02-08 14:03:56,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 12 transitions, 46 flow [2025-02-08 14:03:56,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:03:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:03:56,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2025-02-08 14:03:56,583 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2025-02-08 14:03:56,583 INFO L175 Difference]: Start difference. First operand has 22 places, 13 transitions, 34 flow. Second operand 4 states and 40 transitions. [2025-02-08 14:03:56,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 12 transitions, 46 flow [2025-02-08 14:03:56,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 12 transitions, 40 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:03:56,584 INFO L231 Difference]: Finished difference. Result has 18 places, 12 transitions, 30 flow [2025-02-08 14:03:56,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=30, PETRI_PLACES=18, PETRI_TRANSITIONS=12} [2025-02-08 14:03:56,584 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, -6 predicate places. [2025-02-08 14:03:56,584 INFO L471 AbstractCegarLoop]: Abstraction has has 18 places, 12 transitions, 30 flow [2025-02-08 14:03:56,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 14:03:56,585 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:56,585 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:56,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:03:56,585 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-02-08 14:03:56,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:56,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1681770945, now seen corresponding path program 1 times [2025-02-08 14:03:56,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:56,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638321178] [2025-02-08 14:03:56,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:56,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:56,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:03:56,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:03:56,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:56,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:56,647 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 14:03:56,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:56,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638321178] [2025-02-08 14:03:56,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638321178] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:56,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:56,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:03:56,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455131718] [2025-02-08 14:03:56,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:56,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:03:56,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:56,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:03:56,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:03:56,659 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 21 [2025-02-08 14:03:56,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 12 transitions, 30 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 14:03:56,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:56,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 21 [2025-02-08 14:03:56,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:56,674 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2025-02-08 14:03:56,674 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:03:56,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 16 events. 2/16 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 2 based on Foata normal form. 2/18 useless extension candidates. Maximal degree in co-relation 23. Up to 9 conditions per place. [2025-02-08 14:03:56,675 INFO L140 encePairwiseOnDemand]: 18/21 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2025-02-08 14:03:56,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 11 transitions, 40 flow [2025-02-08 14:03:56,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:03:56,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:03:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2025-02-08 14:03:56,676 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2025-02-08 14:03:56,676 INFO L175 Difference]: Start difference. First operand has 18 places, 12 transitions, 30 flow. Second operand 4 states and 39 transitions. [2025-02-08 14:03:56,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 11 transitions, 40 flow [2025-02-08 14:03:56,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 11 transitions, 37 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:03:56,677 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2025-02-08 14:03:56,677 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2025-02-08 14:03:56,677 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, -6 predicate places. [2025-02-08 14:03:56,677 INFO L471 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2025-02-08 14:03:56,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 14:03:56,679 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2025-02-08 14:03:56,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2025-02-08 14:03:56,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2025-02-08 14:03:56,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2025-02-08 14:03:56,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-02-08 14:03:56,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2025-02-08 14:03:56,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2025-02-08 14:03:56,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2025-02-08 14:03:56,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2025-02-08 14:03:56,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:03:56,680 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-08 14:03:56,687 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:03:56,687 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:03:56,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:03:56 BasicIcfg [2025-02-08 14:03:56,691 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:03:56,691 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:03:56,691 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:03:56,691 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:03:56,692 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:03:55" (3/4) ... [2025-02-08 14:03:56,693 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:03:56,696 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-02-08 14:03:56,699 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2025-02-08 14:03:56,699 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2025-02-08 14:03:56,699 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-02-08 14:03:56,699 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 14:03:56,700 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 14:03:56,700 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 14:03:56,749 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:03:56,749 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:03:56,749 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:03:56,750 INFO L158 Benchmark]: Toolchain (without parser) took 2051.74ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 63.5MB in the end (delta: 40.0MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2025-02-08 14:03:56,750 INFO L158 Benchmark]: CDTParser took 1.22ms. Allocated memory is still 226.5MB. Free memory is still 140.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:03:56,750 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.15ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 76.3MB in the end (delta: 27.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 14:03:56,750 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.16ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 74.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:03:56,750 INFO L158 Benchmark]: Boogie Preprocessor took 34.10ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 72.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:03:56,751 INFO L158 Benchmark]: IcfgBuilder took 405.63ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 38.0MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 14:03:56,751 INFO L158 Benchmark]: TraceAbstraction took 1077.77ms. Allocated memory is still 142.6MB. Free memory was 37.1MB in the beginning and 69.0MB in the end (delta: -32.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:03:56,751 INFO L158 Benchmark]: Witness Printer took 57.74ms. Allocated memory is still 142.6MB. Free memory was 69.0MB in the beginning and 63.5MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:03:56,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22ms. Allocated memory is still 226.5MB. Free memory is still 140.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.15ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 76.3MB in the end (delta: 27.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.16ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 74.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.10ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 72.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 405.63ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 38.0MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1077.77ms. Allocated memory is still 142.6MB. Free memory was 37.1MB in the beginning and 69.0MB in the end (delta: -32.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.74ms. Allocated memory is still 142.6MB. Free memory was 69.0MB in the beginning and 63.5MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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 3 procedures, 33 locations, 9 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: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 2 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:03:56,767 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