/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-14 00:12:58,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 00:12:58,990 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-14 00:12:58,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 00:12:59,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 00:12:59,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 00:12:59,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 00:12:59,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 00:12:59,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-14 00:12:59,023 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-14 00:12:59,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 00:12:59,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 00:12:59,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 00:12:59,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 00:12:59,024 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 00:12:59,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 00:12:59,025 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 00:12:59,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:12:59,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:12:59,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 00:12:59,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 00:12:59,027 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-14 00:12:59,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-14 00:12:59,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 00:12:59,027 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> PETRI_NET Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-14 00:12:59,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 00:12:59,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 00:12:59,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 00:12:59,292 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 00:12:59,294 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 00:12:59,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2025-04-14 00:13:00,701 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f876b86d0/40061332e38148e6aac1b387b6425cad/FLAG42c1ebfcd [2025-04-14 00:13:00,988 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 00:13:00,988 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2025-04-14 00:13:01,000 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f876b86d0/40061332e38148e6aac1b387b6425cad/FLAG42c1ebfcd [2025-04-14 00:13:01,751 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f876b86d0/40061332e38148e6aac1b387b6425cad [2025-04-14 00:13:01,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 00:13:01,754 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 00:13:01,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 00:13:01,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 00:13:01,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 00:13:01,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:13:01" (1/1) ... [2025-04-14 00:13:01,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589ccd34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:01, skipping insertion in model container [2025-04-14 00:13:01,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:13:01" (1/1) ... [2025-04-14 00:13:01,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 00:13:01,947 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2025-04-14 00:13:02,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:13:02,130 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 00:13:02,156 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2025-04-14 00:13:02,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:13:02,237 INFO L204 MainTranslator]: Completed translation [2025-04-14 00:13:02,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02 WrapperNode [2025-04-14 00:13:02,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 00:13:02,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 00:13:02,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 00:13:02,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 00:13:02,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,285 INFO L138 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 130 [2025-04-14 00:13:02,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 00:13:02,286 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 00:13:02,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 00:13:02,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 00:13:02,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,319 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]. [2025-04-14 00:13:02,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,323 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,323 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,324 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 00:13:02,328 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 00:13:02,329 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 00:13:02,329 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 00:13:02,329 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (1/1) ... [2025-04-14 00:13:02,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:13:02,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:13:02,356 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) [2025-04-14 00:13:02,358 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 [2025-04-14 00:13:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-14 00:13:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 00:13:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-14 00:13:02,378 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-14 00:13:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-14 00:13:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-14 00:13:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-14 00:13:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 00:13:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 00:13:02,380 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 00:13:02,506 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 00:13:02,508 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 00:13:02,695 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 00:13:02,696 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 00:13:02,696 INFO L318 CfgBuilder]: Performing block encoding [2025-04-14 00:13:03,078 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 00:13:03,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:13:03 BoogieIcfgContainer [2025-04-14 00:13:03,078 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 00:13:03,081 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 00:13:03,081 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 00:13:03,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 00:13:03,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:13:01" (1/3) ... [2025-04-14 00:13:03,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455e041c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:13:03, skipping insertion in model container [2025-04-14 00:13:03,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:02" (2/3) ... [2025-04-14 00:13:03,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455e041c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:13:03, skipping insertion in model container [2025-04-14 00:13:03,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:13:03" (3/3) ... [2025-04-14 00:13:03,085 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2025-04-14 00:13:03,097 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 00:13:03,098 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_01-priv_nr_true.i that has 2 procedures, 20 locations, 18 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-14 00:13:03,099 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 00:13:03,138 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-14 00:13:03,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 19 transitions, 45 flow [2025-04-14 00:13:03,207 INFO L116 PetriNetUnfolderBase]: 0/18 cut-off events. [2025-04-14 00:13:03,212 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-14 00:13:03,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 18 events. 0/18 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 22 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-14 00:13:03,214 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 19 transitions, 45 flow [2025-04-14 00:13:03,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 16 transitions, 35 flow [2025-04-14 00:13:03,226 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-14 00:13:03,238 INFO L340 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;@9afc245, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 00:13:03,238 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-14 00:13:03,240 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-14 00:13:03,240 INFO L116 PetriNetUnfolderBase]: 0/0 cut-off events. [2025-04-14 00:13:03,240 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:13:03,240 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:13:03,241 INFO L206 CegarLoopForPetriNet]: trace histogram [1] [2025-04-14 00:13:03,241 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:13:03,246 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:13:03,246 INFO L85 PathProgramCache]: Analyzing trace with hash 329, now seen corresponding path program 1 times [2025-04-14 00:13:03,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:13:03,252 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75152502] [2025-04-14 00:13:03,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:13:03,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:13:03,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-14 00:13:03,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-14 00:13:03,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:13:03,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:13:03,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:13:03,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:13:03,492 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75152502] [2025-04-14 00:13:03,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75152502] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:13:03,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:13:03,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2025-04-14 00:13:03,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339572735] [2025-04-14 00:13:03,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:13:03,504 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-14 00:13:03,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:13:03,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-14 00:13:03,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-14 00:13:03,529 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 19 [2025-04-14 00:13:03,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 35 flow. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2025-04-14 00:13:03,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:13:03,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 19 [2025-04-14 00:13:03,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:13:03,585 INFO L116 PetriNetUnfolderBase]: 30/79 cut-off events. [2025-04-14 00:13:03,585 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:13:03,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 79 events. 30/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 230 event pairs, 30 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 148. Up to 74 conditions per place. [2025-04-14 00:13:03,590 INFO L140 encePairwiseOnDemand]: 17/19 looper letters, 13 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2025-04-14 00:13:03,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 14 transitions, 57 flow [2025-04-14 00:13:03,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 00:13:03,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-14 00:13:03,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 19 transitions. [2025-04-14 00:13:03,602 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-04-14 00:13:03,604 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 35 flow. Second operand 2 states and 19 transitions. [2025-04-14 00:13:03,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 14 transitions, 57 flow [2025-04-14 00:13:03,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 14 transitions, 56 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-14 00:13:03,611 INFO L231 Difference]: Finished difference. Result has 18 places, 14 transitions, 30 flow [2025-04-14 00:13:03,612 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=30, PETRI_PLACES=18, PETRI_TRANSITIONS=14} [2025-04-14 00:13:03,614 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, -2 predicate places. [2025-04-14 00:13:03,615 INFO L485 AbstractCegarLoop]: Abstraction has has 18 places, 14 transitions, 30 flow [2025-04-14 00:13:03,615 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2025-04-14 00:13:03,615 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:13:03,615 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-04-14 00:13:03,615 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 00:13:03,615 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:13:03,616 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:13:03,616 INFO L85 PathProgramCache]: Analyzing trace with hash 314728035, now seen corresponding path program 1 times [2025-04-14 00:13:03,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:13:03,616 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469552938] [2025-04-14 00:13:03,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:13:03,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:13:03,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-14 00:13:03,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-14 00:13:03,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:13:03,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:13:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:13:03,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:13:03,793 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469552938] [2025-04-14 00:13:03,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469552938] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:13:03,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:13:03,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-14 00:13:03,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960506191] [2025-04-14 00:13:03,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:13:03,794 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:13:03,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:13:03,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:13:03,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:13:03,795 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 19 [2025-04-14 00:13:03,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2025-04-14 00:13:03,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:13:03,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 19 [2025-04-14 00:13:03,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:13:03,841 INFO L116 PetriNetUnfolderBase]: 20/56 cut-off events. [2025-04-14 00:13:03,841 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:13:03,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 56 events. 20/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 134 event pairs, 20 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 109. Up to 51 conditions per place. [2025-04-14 00:13:03,842 INFO L140 encePairwiseOnDemand]: 16/19 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2025-04-14 00:13:03,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 12 transitions, 48 flow [2025-04-14 00:13:03,842 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:13:03,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:13:03,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2025-04-14 00:13:03,843 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2025-04-14 00:13:03,843 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 30 flow. Second operand 3 states and 19 transitions. [2025-04-14 00:13:03,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 12 transitions, 48 flow [2025-04-14 00:13:03,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 12 transitions, 48 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-14 00:13:03,844 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2025-04-14 00:13:03,844 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2025-04-14 00:13:03,845 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, -2 predicate places. [2025-04-14 00:13:03,845 INFO L485 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2025-04-14 00:13:03,845 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2025-04-14 00:13:03,847 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2025-04-14 00:13:03,847 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2025-04-14 00:13:03,847 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-04-14 00:13:03,847 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2025-04-14 00:13:03,847 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2025-04-14 00:13:03,847 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2025-04-14 00:13:03,848 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2025-04-14 00:13:03,848 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 00:13:03,848 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-14 00:13:03,852 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 00:13:03,852 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 00:13:03,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 12:13:03 BasicIcfg [2025-04-14 00:13:03,855 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 00:13:03,856 INFO L158 Benchmark]: Toolchain (without parser) took 2101.84ms. Allocated memory is still 125.8MB. Free memory was 86.2MB in the beginning and 84.2MB in the end (delta: 1.9MB). Peak memory consumption was 59.5MB. Max. memory is 8.0GB. [2025-04-14 00:13:03,856 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 163.6MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:13:03,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.40ms. Allocated memory is still 125.8MB. Free memory was 85.5MB in the beginning and 62.7MB in the end (delta: 22.8MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2025-04-14 00:13:03,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.81ms. Allocated memory is still 125.8MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 00:13:03,857 INFO L158 Benchmark]: Boogie Preprocessor took 41.51ms. Allocated memory is still 125.8MB. Free memory was 60.6MB in the beginning and 58.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:13:03,857 INFO L158 Benchmark]: IcfgBuilder took 750.02ms. Allocated memory is still 125.8MB. Free memory was 58.6MB in the beginning and 35.2MB in the end (delta: 23.4MB). Peak memory consumption was 48.7MB. Max. memory is 8.0GB. [2025-04-14 00:13:03,857 INFO L158 Benchmark]: TraceAbstraction took 774.80ms. Allocated memory is still 125.8MB. Free memory was 34.2MB in the beginning and 84.2MB in the end (delta: -50.1MB). Peak memory consumption was 6.6MB. Max. memory is 8.0GB. [2025-04-14 00:13:03,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 163.6MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 483.40ms. Allocated memory is still 125.8MB. Free memory was 85.5MB in the beginning and 62.7MB in the end (delta: 22.8MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.81ms. Allocated memory is still 125.8MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.51ms. Allocated memory is still 125.8MB. Free memory was 60.6MB in the beginning and 58.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 8.0GB. * IcfgBuilder took 750.02ms. Allocated memory is still 125.8MB. Free memory was 58.6MB in the beginning and 35.2MB in the end (delta: 23.4MB). Peak memory consumption was 48.7MB. Max. memory is 8.0GB. * TraceAbstraction took 774.80ms. Allocated memory is still 125.8MB. Free memory was 34.2MB in the beginning and 84.2MB in the end (delta: -50.1MB). Peak memory consumption was 6.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 29 locations, 28 edges, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-14 00:13:03,871 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...