/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_19-publish-precision_true.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-14 00:13:09,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 00:13:09,165 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 00:13:09,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 00:13:09,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 00:13:09,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 00:13:09,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 00:13:09,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 00:13:09,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-14 00:13:09,192 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-14 00:13:09,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 00:13:09,192 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 00:13:09,193 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 00:13:09,193 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 00:13:09,193 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 00:13:09,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 00:13:09,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 00:13:09,193 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 00:13:09,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 00:13:09,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 00:13:09,194 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:13:09,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 00:13:09,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:13:09,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:13:09,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:13:09,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:13:09,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 00:13:09,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 00:13:09,195 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 00:13:09,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 00:13:09,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 00:13:09,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 00:13:09,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-14 00:13:09,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-14 00:13:09,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 00:13:09,195 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 00:13:09,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 00:13:09,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 00:13:09,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 00:13:09,454 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 00:13:09,456 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 00:13:09,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_true.i [2025-04-14 00:13:10,749 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7e7fbe2e/fe81c6c15a684eda9da9161e3e91915e/FLAGacf5c4448 [2025-04-14 00:13:10,992 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 00:13:10,992 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_true.i [2025-04-14 00:13:11,002 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7e7fbe2e/fe81c6c15a684eda9da9161e3e91915e/FLAGacf5c4448 [2025-04-14 00:13:11,753 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7e7fbe2e/fe81c6c15a684eda9da9161e3e91915e [2025-04-14 00:13:11,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 00:13:11,757 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 00:13:11,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 00:13:11,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 00:13:11,772 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 00:13:11,773 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:13:11" (1/1) ... [2025-04-14 00:13:11,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3625f4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:11, skipping insertion in model container [2025-04-14 00:13:11,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:13:11" (1/1) ... [2025-04-14 00:13:11,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 00:13:11,931 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_19-publish-precision_true.i[1094,1107] [2025-04-14 00:13:12,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:13:12,032 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 00:13:12,046 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_19-publish-precision_true.i[1094,1107] [2025-04-14 00:13:12,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:13:12,105 INFO L204 MainTranslator]: Completed translation [2025-04-14 00:13:12,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12 WrapperNode [2025-04-14 00:13:12,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 00:13:12,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 00:13:12,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 00:13:12,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 00:13:12,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,139 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2025-04-14 00:13:12,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 00:13:12,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 00:13:12,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 00:13:12,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 00:13:12,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,151 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,163 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2025-04-14 00:13:12,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,167 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 00:13:12,172 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 00:13:12,172 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 00:13:12,172 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 00:13:12,172 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (1/1) ... [2025-04-14 00:13:12,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:13:12,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:13:12,195 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 00:13:12,200 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 00:13:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-14 00:13:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 00:13:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-14 00:13:12,217 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-14 00:13:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-14 00:13:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-14 00:13:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-14 00:13:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-14 00:13:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 00:13:12,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 00:13:12,218 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 00:13:12,305 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 00:13:12,306 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 00:13:12,422 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 00:13:12,423 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 00:13:12,423 INFO L318 CfgBuilder]: Performing block encoding [2025-04-14 00:13:12,544 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 00:13:12,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:13:12 BoogieIcfgContainer [2025-04-14 00:13:12,545 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 00:13:12,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 00:13:12,548 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 00:13:12,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 00:13:12,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:13:11" (1/3) ... [2025-04-14 00:13:12,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456dc10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:13:12, skipping insertion in model container [2025-04-14 00:13:12,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:12" (2/3) ... [2025-04-14 00:13:12,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456dc10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:13:12, skipping insertion in model container [2025-04-14 00:13:12,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:13:12" (3/3) ... [2025-04-14 00:13:12,554 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_true.i [2025-04-14 00:13:12,565 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 00:13:12,567 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_19-publish-precision_true.i that has 2 procedures, 26 locations, 24 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-04-14 00:13:12,567 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 00:13:12,602 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-14 00:13:12,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 57 flow [2025-04-14 00:13:12,669 INFO L116 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-04-14 00:13:12,672 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-14 00:13:12,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 24 events. 0/24 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-14 00:13:12,674 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 25 transitions, 57 flow [2025-04-14 00:13:12,680 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 17 transitions, 37 flow [2025-04-14 00:13:12,685 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-14 00:13:12,697 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;@5955b1c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 00:13:12,697 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-14 00:13:12,700 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-14 00:13:12,700 INFO L116 PetriNetUnfolderBase]: 0/0 cut-off events. [2025-04-14 00:13:12,700 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:13:12,701 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:13:12,701 INFO L206 CegarLoopForPetriNet]: trace histogram [1] [2025-04-14 00:13:12,701 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-04-14 00:13:12,705 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:13:12,706 INFO L85 PathProgramCache]: Analyzing trace with hash 207, now seen corresponding path program 1 times [2025-04-14 00:13:12,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:13:12,711 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068480257] [2025-04-14 00:13:12,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:13:12,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:13:12,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-14 00:13:12,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-14 00:13:12,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:13:12,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:13:12,872 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 00:13:12,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:13:12,872 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068480257] [2025-04-14 00:13:12,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068480257] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:13:12,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:13:12,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2025-04-14 00:13:12,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172941349] [2025-04-14 00:13:12,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:13:12,880 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-14 00:13:12,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:13:12,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-14 00:13:12,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-14 00:13:12,908 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 25 [2025-04-14 00:13:12,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 37 flow. Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 00:13:12,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:13:12,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 25 [2025-04-14 00:13:12,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:13:12,967 INFO L116 PetriNetUnfolderBase]: 18/59 cut-off events. [2025-04-14 00:13:12,967 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:13:12,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 59 events. 18/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 156 event pairs, 18 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 102. Up to 48 conditions per place. [2025-04-14 00:13:12,970 INFO L140 encePairwiseOnDemand]: 24/25 looper letters, 11 selfloop transitions, 0 changer transitions 0/16 dead transitions. [2025-04-14 00:13:12,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 57 flow [2025-04-14 00:13:12,971 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 00:13:12,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-14 00:13:12,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 26 transitions. [2025-04-14 00:13:12,980 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.52 [2025-04-14 00:13:12,982 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 37 flow. Second operand 2 states and 26 transitions. [2025-04-14 00:13:12,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 57 flow [2025-04-14 00:13:12,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 56 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-14 00:13:12,986 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 34 flow [2025-04-14 00:13:12,988 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=34, PETRI_PLACES=20, PETRI_TRANSITIONS=16} [2025-04-14 00:13:12,992 INFO L279 CegarLoopForPetriNet]: 21 programPoint places, -1 predicate places. [2025-04-14 00:13:12,993 INFO L485 AbstractCegarLoop]: Abstraction has has 20 places, 16 transitions, 34 flow [2025-04-14 00:13:12,993 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 00:13:12,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:13:12,993 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:13:12,993 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 00:13:12,993 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-04-14 00:13:12,994 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:13:12,994 INFO L85 PathProgramCache]: Analyzing trace with hash -683181147, now seen corresponding path program 1 times [2025-04-14 00:13:12,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:13:12,995 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996952430] [2025-04-14 00:13:12,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:13:12,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:13:13,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-14 00:13:13,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-14 00:13:13,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:13:13,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:13:13,162 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 00:13:13,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:13:13,162 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996952430] [2025-04-14 00:13:13,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996952430] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:13:13,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:13:13,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-14 00:13:13,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875061618] [2025-04-14 00:13:13,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:13:13,163 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:13:13,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:13:13,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:13:13,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:13:13,164 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 25 [2025-04-14 00:13:13,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 00:13:13,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:13:13,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 25 [2025-04-14 00:13:13,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:13:13,207 INFO L116 PetriNetUnfolderBase]: 15/52 cut-off events. [2025-04-14 00:13:13,207 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:13:13,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 52 events. 15/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 137 event pairs, 6 based on Foata normal form. 4/55 useless extension candidates. Maximal degree in co-relation 94. Up to 21 conditions per place. [2025-04-14 00:13:13,207 INFO L140 encePairwiseOnDemand]: 23/25 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2025-04-14 00:13:13,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 18 transitions, 64 flow [2025-04-14 00:13:13,208 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:13:13,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:13:13,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2025-04-14 00:13:13,208 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2025-04-14 00:13:13,208 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 34 flow. Second operand 3 states and 35 transitions. [2025-04-14 00:13:13,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 18 transitions, 64 flow [2025-04-14 00:13:13,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 64 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-14 00:13:13,209 INFO L231 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2025-04-14 00:13:13,209 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2025-04-14 00:13:13,209 INFO L279 CegarLoopForPetriNet]: 21 programPoint places, 0 predicate places. [2025-04-14 00:13:13,209 INFO L485 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2025-04-14 00:13:13,210 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 00:13:13,211 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-04-14 00:13:13,212 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-14 00:13:13,212 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2025-04-14 00:13:13,212 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-04-14 00:13:13,212 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 00:13:13,212 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-14 00:13:13,215 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 00:13:13,218 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 00:13:13,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 12:13:13 BasicIcfg [2025-04-14 00:13:13,224 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 00:13:13,225 INFO L158 Benchmark]: Toolchain (without parser) took 1468.20ms. Allocated memory is still 125.8MB. Free memory was 86.4MB in the beginning and 49.9MB in the end (delta: 36.5MB). Peak memory consumption was 36.0MB. Max. memory is 8.0GB. [2025-04-14 00:13:13,225 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 159.4MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:13:13,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.51ms. Allocated memory is still 125.8MB. Free memory was 85.9MB in the beginning and 63.3MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2025-04-14 00:13:13,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.13ms. Allocated memory is still 125.8MB. Free memory was 63.3MB in the beginning and 61.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 00:13:13,225 INFO L158 Benchmark]: Boogie Preprocessor took 31.11ms. Allocated memory is still 125.8MB. Free memory was 61.2MB in the beginning and 59.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:13:13,226 INFO L158 Benchmark]: IcfgBuilder took 373.35ms. Allocated memory is still 125.8MB. Free memory was 59.6MB in the beginning and 28.6MB in the end (delta: 31.0MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2025-04-14 00:13:13,226 INFO L158 Benchmark]: TraceAbstraction took 676.47ms. Allocated memory is still 125.8MB. Free memory was 28.1MB in the beginning and 49.9MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:13:13,227 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 159.4MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 344.51ms. Allocated memory is still 125.8MB. Free memory was 85.9MB in the beginning and 63.3MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.13ms. Allocated memory is still 125.8MB. Free memory was 63.3MB in the beginning and 61.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.11ms. Allocated memory is still 125.8MB. Free memory was 61.2MB in the beginning and 59.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. * IcfgBuilder took 373.35ms. Allocated memory is still 125.8MB. Free memory was 59.6MB in the beginning and 28.6MB in the end (delta: 31.0MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 676.47ms. Allocated memory is still 125.8MB. Free memory was 28.1MB in the beginning and 49.9MB in the end (delta: -21.8MB). There was no memory consumed. 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 42 locations, 41 edges, 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: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-14 00:13:13,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...