./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label28.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem02_label28.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 61e7be63d8e367b5f988006276e044c9c346c537d002ac6b15fa75838eb4df4d --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 14:08:34,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 14:08:34,130 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 14:08:34,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 14:08:34,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 14:08:34,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 14:08:34,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 14:08:34,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 14:08:34,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 14:08:34,161 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 14:08:34,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 14:08:34,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 14:08:34,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 14:08:34,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 14:08:34,162 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 14:08:34,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 14:08:34,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 14:08:34,163 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 14:08:34,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 14:08:34,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 14:08:34,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 14:08:34,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 14:08:34,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 14:08:34,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 14:08:34,163 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 14:08:34,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 14:08:34,163 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 14:08:34,164 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 14:08:34,164 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 14:08:34,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 14:08:34,164 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 14:08:34,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 14:08:34,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 14:08:34,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 14:08:34,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 14:08:34,165 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 14:08:34,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 14:08:34,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 14:08:34,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 14:08:34,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 14:08:34,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 14:08:34,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 14:08:34,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 14:08:34,165 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 ! call(reach_error())) ) 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 -> 61e7be63d8e367b5f988006276e044c9c346c537d002ac6b15fa75838eb4df4d [2025-03-16 14:08:34,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 14:08:34,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 14:08:34,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 14:08:34,403 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 14:08:34,403 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 14:08:34,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label28.c [2025-03-16 14:08:35,559 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d967d75/ca0e666e20ba40448b401a0dd3fdac16/FLAG2623b603b [2025-03-16 14:08:35,883 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 14:08:35,888 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label28.c [2025-03-16 14:08:35,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d967d75/ca0e666e20ba40448b401a0dd3fdac16/FLAG2623b603b [2025-03-16 14:08:35,924 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d967d75/ca0e666e20ba40448b401a0dd3fdac16 [2025-03-16 14:08:35,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 14:08:35,928 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 14:08:35,930 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 14:08:35,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 14:08:35,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 14:08:35,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 02:08:35" (1/1) ... [2025-03-16 14:08:35,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6e10df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:35, skipping insertion in model container [2025-03-16 14:08:35,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 02:08:35" (1/1) ... [2025-03-16 14:08:35,970 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 14:08:36,205 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label28.c[19513,19526] [2025-03-16 14:08:36,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 14:08:36,242 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 14:08:36,311 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label28.c[19513,19526] [2025-03-16 14:08:36,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 14:08:36,330 INFO L204 MainTranslator]: Completed translation [2025-03-16 14:08:36,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36 WrapperNode [2025-03-16 14:08:36,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 14:08:36,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 14:08:36,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 14:08:36,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 14:08:36,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,384 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 666 [2025-03-16 14:08:36,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 14:08:36,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 14:08:36,385 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 14:08:36,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 14:08:36,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,398 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,419 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-16 14:08:36,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,429 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,444 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 14:08:36,444 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 14:08:36,444 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 14:08:36,444 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 14:08:36,447 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (1/1) ... [2025-03-16 14:08:36,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 14:08:36,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 14:08:36,475 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) [2025-03-16 14:08:36,478 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 [2025-03-16 14:08:36,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 14:08:36,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 14:08:36,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 14:08:36,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 14:08:36,550 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 14:08:36,552 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 14:08:37,317 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2025-03-16 14:08:37,318 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 14:08:37,334 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 14:08:37,338 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 14:08:37,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 02:08:37 BoogieIcfgContainer [2025-03-16 14:08:37,339 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 14:08:37,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 14:08:37,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 14:08:37,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 14:08:37,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 02:08:35" (1/3) ... [2025-03-16 14:08:37,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105ad6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 02:08:37, skipping insertion in model container [2025-03-16 14:08:37,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:08:36" (2/3) ... [2025-03-16 14:08:37,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105ad6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 02:08:37, skipping insertion in model container [2025-03-16 14:08:37,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 02:08:37" (3/3) ... [2025-03-16 14:08:37,351 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem02_label28.c [2025-03-16 14:08:37,366 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 14:08:37,368 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem02_label28.c that has 1 procedures, 166 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-16 14:08:37,427 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 14:08:37,441 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66d28b1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 14:08:37,441 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 14:08:37,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 164 states have (on average 1.9085365853658536) internal successors, (313), 165 states have internal predecessors, (313), 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) [2025-03-16 14:08:37,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-03-16 14:08:37,455 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:08:37,456 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:08:37,456 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:08:37,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:08:37,461 INFO L85 PathProgramCache]: Analyzing trace with hash -764695741, now seen corresponding path program 1 times [2025-03-16 14:08:37,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:08:37,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981748033] [2025-03-16 14:08:37,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:08:37,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:08:37,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-16 14:08:37,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-16 14:08:37,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:08:37,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:08:37,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 14:08:37,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:08:37,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981748033] [2025-03-16 14:08:37,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981748033] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:08:37,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:08:37,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:08:37,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265437020] [2025-03-16 14:08:37,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:08:37,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 14:08:37,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:08:37,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 14:08:37,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 14:08:37,859 INFO L87 Difference]: Start difference. First operand has 166 states, 164 states have (on average 1.9085365853658536) internal successors, (313), 165 states have internal predecessors, (313), 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) Second operand has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 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) [2025-03-16 14:08:37,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:08:37,885 INFO L93 Difference]: Finished difference Result 331 states and 625 transitions. [2025-03-16 14:08:37,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 14:08:37,887 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 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) Word has length 123 [2025-03-16 14:08:37,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:08:37,894 INFO L225 Difference]: With dead ends: 331 [2025-03-16 14:08:37,894 INFO L226 Difference]: Without dead ends: 163 [2025-03-16 14:08:37,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 14:08:37,898 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 14:08:37,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 14:08:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2025-03-16 14:08:37,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2025-03-16 14:08:37,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.5308641975308641) internal successors, (248), 162 states have internal predecessors, (248), 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) [2025-03-16 14:08:37,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 248 transitions. [2025-03-16 14:08:37,932 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 248 transitions. Word has length 123 [2025-03-16 14:08:37,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:08:37,933 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 248 transitions. [2025-03-16 14:08:37,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 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) [2025-03-16 14:08:37,933 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 248 transitions. [2025-03-16 14:08:37,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-03-16 14:08:37,935 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:08:37,935 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:08:37,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 14:08:37,935 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:08:37,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:08:37,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1090471836, now seen corresponding path program 1 times [2025-03-16 14:08:37,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:08:37,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658406966] [2025-03-16 14:08:37,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:08:37,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:08:37,964 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-16 14:08:37,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-16 14:08:37,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:08:37,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:08:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 14:08:38,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:08:38,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658406966] [2025-03-16 14:08:38,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658406966] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:08:38,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:08:38,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:08:38,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359433888] [2025-03-16 14:08:38,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:08:38,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:08:38,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:08:38,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:08:38,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:38,221 INFO L87 Difference]: Start difference. First operand 163 states and 248 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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) [2025-03-16 14:08:38,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:08:38,689 INFO L93 Difference]: Finished difference Result 466 states and 712 transitions. [2025-03-16 14:08:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:08:38,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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) Word has length 123 [2025-03-16 14:08:38,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:08:38,693 INFO L225 Difference]: With dead ends: 466 [2025-03-16 14:08:38,693 INFO L226 Difference]: Without dead ends: 304 [2025-03-16 14:08:38,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:38,694 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 96 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-16 14:08:38,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 43 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-16 14:08:38,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2025-03-16 14:08:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2025-03-16 14:08:38,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 1.528052805280528) internal successors, (463), 303 states have internal predecessors, (463), 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) [2025-03-16 14:08:38,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 463 transitions. [2025-03-16 14:08:38,717 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 463 transitions. Word has length 123 [2025-03-16 14:08:38,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:08:38,718 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 463 transitions. [2025-03-16 14:08:38,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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) [2025-03-16 14:08:38,718 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 463 transitions. [2025-03-16 14:08:38,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-16 14:08:38,722 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:08:38,722 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:08:38,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 14:08:38,722 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:08:38,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:08:38,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1725320760, now seen corresponding path program 1 times [2025-03-16 14:08:38,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:08:38,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483138348] [2025-03-16 14:08:38,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:08:38,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:08:38,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-16 14:08:38,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-16 14:08:38,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:08:38,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:08:38,857 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 14:08:38,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:08:38,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483138348] [2025-03-16 14:08:38,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483138348] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:08:38,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:08:38,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:08:38,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078815314] [2025-03-16 14:08:38,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:08:38,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:08:38,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:08:38,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:08:38,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:38,860 INFO L87 Difference]: Start difference. First operand 304 states and 463 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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) [2025-03-16 14:08:39,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:08:39,267 INFO L93 Difference]: Finished difference Result 901 states and 1374 transitions. [2025-03-16 14:08:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:08:39,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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) Word has length 134 [2025-03-16 14:08:39,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:08:39,271 INFO L225 Difference]: With dead ends: 901 [2025-03-16 14:08:39,271 INFO L226 Difference]: Without dead ends: 598 [2025-03-16 14:08:39,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:39,273 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 193 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-16 14:08:39,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 70 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-16 14:08:39,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2025-03-16 14:08:39,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 595. [2025-03-16 14:08:39,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 594 states have (on average 1.4781144781144782) internal successors, (878), 594 states have internal predecessors, (878), 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) [2025-03-16 14:08:39,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 878 transitions. [2025-03-16 14:08:39,294 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 878 transitions. Word has length 134 [2025-03-16 14:08:39,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:08:39,294 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 878 transitions. [2025-03-16 14:08:39,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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) [2025-03-16 14:08:39,294 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 878 transitions. [2025-03-16 14:08:39,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-03-16 14:08:39,296 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:08:39,296 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:08:39,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-16 14:08:39,296 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:08:39,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:08:39,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2072458057, now seen corresponding path program 1 times [2025-03-16 14:08:39,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:08:39,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607522789] [2025-03-16 14:08:39,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:08:39,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:08:39,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-03-16 14:08:39,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-03-16 14:08:39,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:08:39,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:08:39,416 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-16 14:08:39,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:08:39,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607522789] [2025-03-16 14:08:39,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607522789] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:08:39,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:08:39,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:08:39,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849836432] [2025-03-16 14:08:39,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:08:39,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:08:39,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:08:39,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:08:39,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:39,419 INFO L87 Difference]: Start difference. First operand 595 states and 878 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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) [2025-03-16 14:08:39,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:08:39,608 INFO L93 Difference]: Finished difference Result 1039 states and 1540 transitions. [2025-03-16 14:08:39,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:08:39,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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) Word has length 138 [2025-03-16 14:08:39,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:08:39,611 INFO L225 Difference]: With dead ends: 1039 [2025-03-16 14:08:39,611 INFO L226 Difference]: Without dead ends: 445 [2025-03-16 14:08:39,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:39,612 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 200 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 14:08:39,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 22 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 14:08:39,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2025-03-16 14:08:39,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2025-03-16 14:08:39,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 444 states have (on average 1.4256756756756757) internal successors, (633), 444 states have internal predecessors, (633), 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) [2025-03-16 14:08:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 633 transitions. [2025-03-16 14:08:39,626 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 633 transitions. Word has length 138 [2025-03-16 14:08:39,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:08:39,626 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 633 transitions. [2025-03-16 14:08:39,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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) [2025-03-16 14:08:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 633 transitions. [2025-03-16 14:08:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-16 14:08:39,629 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:08:39,629 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:08:39,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-16 14:08:39,629 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:08:39,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:08:39,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1079659675, now seen corresponding path program 1 times [2025-03-16 14:08:39,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:08:39,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426500014] [2025-03-16 14:08:39,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:08:39,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:08:39,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-16 14:08:39,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-16 14:08:39,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:08:39,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:08:39,743 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 14:08:39,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:08:39,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426500014] [2025-03-16 14:08:39,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426500014] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:08:39,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:08:39,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:08:39,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735975120] [2025-03-16 14:08:39,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:08:39,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:08:39,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:08:39,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:08:39,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:39,745 INFO L87 Difference]: Start difference. First operand 445 states and 633 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 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) [2025-03-16 14:08:40,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:08:40,067 INFO L93 Difference]: Finished difference Result 1325 states and 1887 transitions. [2025-03-16 14:08:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:08:40,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 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) Word has length 141 [2025-03-16 14:08:40,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:08:40,070 INFO L225 Difference]: With dead ends: 1325 [2025-03-16 14:08:40,070 INFO L226 Difference]: Without dead ends: 881 [2025-03-16 14:08:40,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:40,072 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 148 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 14:08:40,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 81 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 14:08:40,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2025-03-16 14:08:40,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 874. [2025-03-16 14:08:40,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 873 states have (on average 1.3734249713631157) internal successors, (1199), 873 states have internal predecessors, (1199), 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) [2025-03-16 14:08:40,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1199 transitions. [2025-03-16 14:08:40,089 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1199 transitions. Word has length 141 [2025-03-16 14:08:40,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:08:40,089 INFO L471 AbstractCegarLoop]: Abstraction has 874 states and 1199 transitions. [2025-03-16 14:08:40,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 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) [2025-03-16 14:08:40,090 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1199 transitions. [2025-03-16 14:08:40,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-03-16 14:08:40,092 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:08:40,092 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:08:40,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-16 14:08:40,092 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:08:40,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:08:40,093 INFO L85 PathProgramCache]: Analyzing trace with hash 997279738, now seen corresponding path program 1 times [2025-03-16 14:08:40,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:08:40,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245110377] [2025-03-16 14:08:40,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:08:40,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:08:40,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-03-16 14:08:40,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-03-16 14:08:40,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:08:40,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:08:40,181 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 14:08:40,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:08:40,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245110377] [2025-03-16 14:08:40,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245110377] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:08:40,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:08:40,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 14:08:40,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643604180] [2025-03-16 14:08:40,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:08:40,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:08:40,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:08:40,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:08:40,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:40,185 INFO L87 Difference]: Start difference. First operand 874 states and 1199 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2025-03-16 14:08:40,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:08:40,540 INFO L93 Difference]: Finished difference Result 2309 states and 3169 transitions. [2025-03-16 14:08:40,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:08:40,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) Word has length 145 [2025-03-16 14:08:40,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:08:40,548 INFO L225 Difference]: With dead ends: 2309 [2025-03-16 14:08:40,549 INFO L226 Difference]: Without dead ends: 1436 [2025-03-16 14:08:40,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:40,552 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 139 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 14:08:40,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 58 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 14:08:40,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2025-03-16 14:08:40,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1296. [2025-03-16 14:08:40,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 1.3034749034749036) internal successors, (1688), 1295 states have internal predecessors, (1688), 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) [2025-03-16 14:08:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1688 transitions. [2025-03-16 14:08:40,586 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1688 transitions. Word has length 145 [2025-03-16 14:08:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:08:40,587 INFO L471 AbstractCegarLoop]: Abstraction has 1296 states and 1688 transitions. [2025-03-16 14:08:40,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2025-03-16 14:08:40,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1688 transitions. [2025-03-16 14:08:40,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-03-16 14:08:40,591 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:08:40,591 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:08:40,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-16 14:08:40,591 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:08:40,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:08:40,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1552142097, now seen corresponding path program 1 times [2025-03-16 14:08:40,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:08:40,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500120513] [2025-03-16 14:08:40,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:08:40,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:08:40,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-03-16 14:08:40,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-03-16 14:08:40,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:08:40,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:08:40,675 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-16 14:08:40,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:08:40,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500120513] [2025-03-16 14:08:40,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500120513] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:08:40,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:08:40,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 14:08:40,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977561447] [2025-03-16 14:08:40,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:08:40,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:08:40,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:08:40,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:08:40,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:40,677 INFO L87 Difference]: Start difference. First operand 1296 states and 1688 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2025-03-16 14:08:41,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:08:41,033 INFO L93 Difference]: Finished difference Result 1859 states and 2422 transitions. [2025-03-16 14:08:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:08:41,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) Word has length 150 [2025-03-16 14:08:41,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:08:41,034 INFO L225 Difference]: With dead ends: 1859 [2025-03-16 14:08:41,034 INFO L226 Difference]: Without dead ends: 0 [2025-03-16 14:08:41,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:08:41,035 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 138 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 14:08:41,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 232 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 14:08:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-16 14:08:41,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-16 14:08:41,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2025-03-16 14:08:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-16 14:08:41,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2025-03-16 14:08:41,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:08:41,036 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-16 14:08:41,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2025-03-16 14:08:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-16 14:08:41,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-16 14:08:41,040 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-16 14:08:41,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-16 14:08:41,044 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:08:41,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-16 14:08:41,114 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 14:08:41,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 02:08:41 BoogieIcfgContainer [2025-03-16 14:08:41,126 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 14:08:41,127 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 14:08:41,127 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 14:08:41,127 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 14:08:41,128 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 02:08:37" (3/4) ... [2025-03-16 14:08:41,129 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-16 14:08:41,146 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-16 14:08:41,147 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-16 14:08:41,148 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-16 14:08:41,148 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-16 14:08:41,254 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-16 14:08:41,254 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-16 14:08:41,254 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 14:08:41,255 INFO L158 Benchmark]: Toolchain (without parser) took 5327.05ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 103.4MB in the beginning and 237.8MB in the end (delta: -134.4MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2025-03-16 14:08:41,256 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 14:08:41,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.81ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 77.4MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-16 14:08:41,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.34ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 72.8MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 14:08:41,256 INFO L158 Benchmark]: Boogie Preprocessor took 58.85ms. Allocated memory is still 142.6MB. Free memory was 72.8MB in the beginning and 69.0MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 14:08:41,257 INFO L158 Benchmark]: IcfgBuilder took 894.76ms. Allocated memory is still 142.6MB. Free memory was 69.0MB in the beginning and 65.7MB in the end (delta: 3.4MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2025-03-16 14:08:41,257 INFO L158 Benchmark]: TraceAbstraction took 3783.62ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 64.9MB in the beginning and 248.1MB in the end (delta: -183.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 14:08:41,257 INFO L158 Benchmark]: Witness Printer took 127.41ms. Allocated memory is still 302.0MB. Free memory was 248.1MB in the beginning and 237.8MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 14:08:41,258 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 201.3MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.81ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 77.4MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.34ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 72.8MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.85ms. Allocated memory is still 142.6MB. Free memory was 72.8MB in the beginning and 69.0MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 894.76ms. Allocated memory is still 142.6MB. Free memory was 69.0MB in the beginning and 65.7MB in the end (delta: 3.4MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3783.62ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 64.9MB in the beginning and 248.1MB in the end (delta: -183.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 127.41ms. Allocated memory is still 302.0MB. Free memory was 248.1MB in the beginning and 237.8MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 554]: 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 CFG has 1 procedures, 166 locations, 313 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 914 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 914 mSDsluCounter, 757 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 322 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1978 IncrementalHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 322 mSolverCounterUnsat, 683 mSDtfsCounter, 1978 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1296occurred in iteration=6, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 150 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 954 NumberOfCodeBlocks, 954 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 947 ConstructedInterpolants, 0 QuantifiedInterpolants, 1317 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 105/105 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 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Location Invariant Derived location invariant: (((((a17 == 8) && (a11 == 1)) || ((a17 == 8) && (a11 <= 0))) || (((a11 == 1) && (a17 <= 8)) && (a25 == 0))) || (((a28 <= 9) && (a11 == 1)) && (a17 <= 8))) RESULT: Ultimate proved your program to be correct! [2025-03-16 14:08:41,273 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