./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 10:01:26,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 10:01:26,264 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 10:01:26,269 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 10:01:26,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 10:01:26,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 10:01:26,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 10:01:26,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 10:01:26,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 10:01:26,294 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 10:01:26,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 10:01:26,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 10:01:26,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 10:01:26,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 10:01:26,294 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 10:01:26,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 10:01:26,294 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 10:01:26,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 10:01:26,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 10:01:26,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 10:01:26,296 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 10:01:26,296 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 10:01:26,297 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:01:26,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 10:01:26,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 10:01:26,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 10:01:26,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 10:01:26,298 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 10:01:26,298 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 10:01:26,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 10:01:26,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 10:01:26,298 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f [2025-03-04 10:01:26,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 10:01:26,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 10:01:26,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 10:01:26,532 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 10:01:26,532 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 10:01:26,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2025-03-04 10:01:27,619 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26a3deded/7e0d92fa26ed4ed298e747c48d8baaef/FLAGdae48f2a8 [2025-03-04 10:01:27,902 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 10:01:27,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2025-03-04 10:01:27,920 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26a3deded/7e0d92fa26ed4ed298e747c48d8baaef/FLAGdae48f2a8 [2025-03-04 10:01:27,937 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26a3deded/7e0d92fa26ed4ed298e747c48d8baaef [2025-03-04 10:01:27,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 10:01:27,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 10:01:27,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 10:01:27,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 10:01:27,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 10:01:27,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:01:27" (1/1) ... [2025-03-04 10:01:27,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5766f10a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:27, skipping insertion in model container [2025-03-04 10:01:27,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:01:27" (1/1) ... [2025-03-04 10:01:27,978 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 10:01:28,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:01:28,161 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 10:01:28,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:01:28,235 INFO L204 MainTranslator]: Completed translation [2025-03-04 10:01:28,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28 WrapperNode [2025-03-04 10:01:28,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 10:01:28,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 10:01:28,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 10:01:28,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 10:01:28,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,266 INFO L138 Inliner]: procedures = 163, calls = 20, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 48 [2025-03-04 10:01:28,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 10:01:28,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 10:01:28,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 10:01:28,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 10:01:28,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,282 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-03-04 10:01:28,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,288 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 10:01:28,297 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 10:01:28,297 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 10:01:28,297 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 10:01:28,297 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (1/1) ... [2025-03-04 10:01:28,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:01:28,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:01:28,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 10:01:28,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 10:01:28,339 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 10:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 10:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 10:01:28,340 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 10:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 10:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 10:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 10:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 10:01:28,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 10:01:28,341 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 10:01:28,428 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 10:01:28,430 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 10:01:28,564 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 10:01:28,564 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 10:01:28,644 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 10:01:28,644 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 10:01:28,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:01:28 BoogieIcfgContainer [2025-03-04 10:01:28,646 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 10:01:28,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 10:01:28,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 10:01:28,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 10:01:28,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 10:01:27" (1/3) ... [2025-03-04 10:01:28,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c490ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:01:28, skipping insertion in model container [2025-03-04 10:01:28,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:01:28" (2/3) ... [2025-03-04 10:01:28,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c490ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:01:28, skipping insertion in model container [2025-03-04 10:01:28,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:01:28" (3/3) ... [2025-03-04 10:01:28,653 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2025-03-04 10:01:28,665 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 10:01:28,667 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_18-first-reads_true.i that has 2 procedures, 30 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-04 10:01:28,667 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 10:01:28,709 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 10:01:28,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 33 transitions, 73 flow [2025-03-04 10:01:28,761 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2025-03-04 10:01:28,766 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 10:01:28,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 32 events. 4/32 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2025-03-04 10:01:28,771 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 33 transitions, 73 flow [2025-03-04 10:01:28,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 31 transitions, 68 flow [2025-03-04 10:01:28,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 10:01:28,794 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=None, 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;@6b0f2b7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 10:01:28,795 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-04 10:01:28,799 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 10:01:28,802 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2025-03-04 10:01:28,802 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 10:01:28,802 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:01:28,803 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 10:01:28,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2025-03-04 10:01:28,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:01:28,808 INFO L85 PathProgramCache]: Analyzing trace with hash 5838291, now seen corresponding path program 1 times [2025-03-04 10:01:28,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:01:28,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106380755] [2025-03-04 10:01:28,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:01:28,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:01:28,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 10:01:28,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 10:01:28,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:01:28,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:01:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:01:29,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:01:29,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106380755] [2025-03-04 10:01:29,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106380755] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:01:29,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:01:29,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:01:29,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899467183] [2025-03-04 10:01:29,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:01:29,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:01:29,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:01:29,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:01:29,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:01:29,075 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2025-03-04 10:01:29,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 31 transitions, 68 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) [2025-03-04 10:01:29,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:01:29,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2025-03-04 10:01:29,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:01:29,152 INFO L124 PetriNetUnfolderBase]: 35/103 cut-off events. [2025-03-04 10:01:29,153 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-04 10:01:29,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 103 events. 35/103 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 317 event pairs, 30 based on Foata normal form. 11/108 useless extension candidates. Maximal degree in co-relation 178. Up to 75 conditions per place. [2025-03-04 10:01:29,155 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 18 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2025-03-04 10:01:29,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 104 flow [2025-03-04 10:01:29,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:01:29,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 10:01:29,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2025-03-04 10:01:29,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.494949494949495 [2025-03-04 10:01:29,165 INFO L175 Difference]: Start difference. First operand has 31 places, 31 transitions, 68 flow. Second operand 3 states and 49 transitions. [2025-03-04 10:01:29,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 104 flow [2025-03-04 10:01:29,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 10:01:29,169 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 54 flow [2025-03-04 10:01:29,171 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2025-03-04 10:01:29,174 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2025-03-04 10:01:29,174 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 54 flow [2025-03-04 10:01:29,174 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) [2025-03-04 10:01:29,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:01:29,174 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:01:29,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 10:01:29,175 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2025-03-04 10:01:29,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:01:29,175 INFO L85 PathProgramCache]: Analyzing trace with hash -277228523, now seen corresponding path program 1 times [2025-03-04 10:01:29,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:01:29,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342090567] [2025-03-04 10:01:29,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:01:29,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:01:29,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 10:01:29,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 10:01:29,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:01:29,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:01:29,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:01:29,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:01:29,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342090567] [2025-03-04 10:01:29,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342090567] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:01:29,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:01:29,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 10:01:29,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083724766] [2025-03-04 10:01:29,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:01:29,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:01:29,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:01:29,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:01:29,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:01:29,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2025-03-04 10:01:29,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:01:29,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:01:29,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2025-03-04 10:01:29,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:01:29,423 INFO L124 PetriNetUnfolderBase]: 30/84 cut-off events. [2025-03-04 10:01:29,423 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 10:01:29,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 84 events. 30/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 211 event pairs, 20 based on Foata normal form. 6/90 useless extension candidates. Maximal degree in co-relation 79. Up to 52 conditions per place. [2025-03-04 10:01:29,424 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 17 selfloop transitions, 4 changer transitions 0/24 dead transitions. [2025-03-04 10:01:29,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 100 flow [2025-03-04 10:01:29,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:01:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 10:01:29,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2025-03-04 10:01:29,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4090909090909091 [2025-03-04 10:01:29,425 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 54 flow. Second operand 4 states and 54 transitions. [2025-03-04 10:01:29,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 100 flow [2025-03-04 10:01:29,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 10:01:29,426 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 48 flow [2025-03-04 10:01:29,426 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=48, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2025-03-04 10:01:29,426 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2025-03-04 10:01:29,427 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 48 flow [2025-03-04 10:01:29,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:01:29,427 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:01:29,427 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:01:29,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 10:01:29,427 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2025-03-04 10:01:29,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:01:29,427 INFO L85 PathProgramCache]: Analyzing trace with hash -956211510, now seen corresponding path program 1 times [2025-03-04 10:01:29,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:01:29,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954391806] [2025-03-04 10:01:29,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:01:29,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:01:29,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 10:01:29,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 10:01:29,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:01:29,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:01:29,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:01:29,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:01:29,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954391806] [2025-03-04 10:01:29,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954391806] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:01:29,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:01:29,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:01:29,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680638783] [2025-03-04 10:01:29,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:01:29,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:01:29,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:01:29,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:01:29,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:01:29,548 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2025-03-04 10:01:29,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:01:29,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:01:29,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2025-03-04 10:01:29,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:01:29,591 INFO L124 PetriNetUnfolderBase]: 14/56 cut-off events. [2025-03-04 10:01:29,591 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-04 10:01:29,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 56 events. 14/56 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 113 event pairs, 6 based on Foata normal form. 5/61 useless extension candidates. Maximal degree in co-relation 47. Up to 26 conditions per place. [2025-03-04 10:01:29,592 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 13 selfloop transitions, 4 changer transitions 0/22 dead transitions. [2025-03-04 10:01:29,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 22 transitions, 88 flow [2025-03-04 10:01:29,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:01:29,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 10:01:29,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2025-03-04 10:01:29,593 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.494949494949495 [2025-03-04 10:01:29,593 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 48 flow. Second operand 3 states and 49 transitions. [2025-03-04 10:01:29,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 22 transitions, 88 flow [2025-03-04 10:01:29,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 22 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 10:01:29,594 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 48 flow [2025-03-04 10:01:29,594 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2025-03-04 10:01:29,595 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -8 predicate places. [2025-03-04 10:01:29,595 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 48 flow [2025-03-04 10:01:29,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:01:29,595 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:01:29,595 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:01:29,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 10:01:29,595 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2025-03-04 10:01:29,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:01:29,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1048304146, now seen corresponding path program 2 times [2025-03-04 10:01:29,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:01:29,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817228889] [2025-03-04 10:01:29,597 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:01:29,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:01:29,609 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 1 equivalence classes. [2025-03-04 10:01:29,614 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 10:01:29,614 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 10:01:29,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:01:29,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:01:29,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:01:29,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817228889] [2025-03-04 10:01:29,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817228889] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:01:29,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:01:29,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 10:01:29,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610327774] [2025-03-04 10:01:29,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:01:29,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:01:29,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:01:29,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:01:29,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:01:29,640 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2025-03-04 10:01:29,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:01:29,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:01:29,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2025-03-04 10:01:29,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:01:29,676 INFO L124 PetriNetUnfolderBase]: 14/54 cut-off events. [2025-03-04 10:01:29,676 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-04 10:01:29,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 54 events. 14/54 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 14 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 16. Up to 47 conditions per place. [2025-03-04 10:01:29,676 INFO L140 encePairwiseOnDemand]: 31/33 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2025-03-04 10:01:29,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 74 flow [2025-03-04 10:01:29,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:01:29,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 10:01:29,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2025-03-04 10:01:29,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2025-03-04 10:01:29,677 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 48 flow. Second operand 3 states and 42 transitions. [2025-03-04 10:01:29,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 74 flow [2025-03-04 10:01:29,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 10:01:29,678 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2025-03-04 10:01:29,678 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2025-03-04 10:01:29,678 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -8 predicate places. [2025-03-04 10:01:29,678 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2025-03-04 10:01:29,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:01:29,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-03-04 10:01:29,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-03-04 10:01:29,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2025-03-04 10:01:29,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-03-04 10:01:29,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 10:01:29,682 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-03-04 10:01:29,684 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 10:01:29,684 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 10:01:29,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 10:01:29 BasicIcfg [2025-03-04 10:01:29,688 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 10:01:29,688 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 10:01:29,688 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 10:01:29,688 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 10:01:29,690 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:01:28" (3/4) ... [2025-03-04 10:01:29,691 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 10:01:29,693 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-04 10:01:29,695 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2025-03-04 10:01:29,695 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-04 10:01:29,695 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-04 10:01:29,695 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 10:01:29,745 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 10:01:29,745 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 10:01:29,745 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 10:01:29,746 INFO L158 Benchmark]: Toolchain (without parser) took 1805.70ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 59.8MB in the end (delta: 52.0MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2025-03-04 10:01:29,746 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory was 124.0MB in the beginning and 123.7MB in the end (delta: 293.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:01:29,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.98ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 92.6MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 10:01:29,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.06ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 91.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:01:29,747 INFO L158 Benchmark]: Boogie Preprocessor took 26.46ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 89.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 10:01:29,747 INFO L158 Benchmark]: IcfgBuilder took 349.83ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 70.6MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 10:01:29,747 INFO L158 Benchmark]: TraceAbstraction took 1039.77ms. Allocated memory is still 142.6MB. Free memory was 69.7MB in the beginning and 65.1MB in the end (delta: 4.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2025-03-04 10:01:29,747 INFO L158 Benchmark]: Witness Printer took 57.16ms. Allocated memory is still 142.6MB. Free memory was 65.1MB in the beginning and 59.8MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:01:29,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory was 124.0MB in the beginning and 123.7MB in the end (delta: 293.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.98ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 92.6MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.06ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 91.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.46ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 89.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 349.83ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 70.6MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1039.77ms. Allocated memory is still 142.6MB. Free memory was 69.7MB in the beginning and 65.1MB in the end (delta: 4.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 57.16ms. Allocated memory is still 142.6MB. Free memory was 65.1MB in the beginning and 59.8MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 695]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 2 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 10:01:29,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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