./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label24.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed 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/Problem15_label24.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 cb0c3ec54bfe7ca5ae5031ed15e31d11f389c6f34b7a5ddeb0a5af3b415963cc --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 02:00:26,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 02:00:26,243 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 02:00:26,250 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 02:00:26,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 02:00:26,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 02:00:26,277 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 02:00:26,278 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 02:00:26,278 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 02:00:26,278 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 02:00:26,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 02:00:26,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 02:00:26,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 02:00:26,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 02:00:26,279 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 02:00:26,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 02:00:26,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 02:00:26,280 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 02:00:26,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 02:00:26,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 02:00:26,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 02:00:26,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 02:00:26,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 02:00:26,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 02:00:26,281 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 02:00:26,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 02:00:26,281 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 02:00:26,281 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 02:00:26,281 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 02:00:26,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 02:00:26,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 02:00:26,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 02:00:26,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:00:26,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 02:00:26,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 02:00:26,282 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 02:00:26,282 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 02:00:26,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 02:00:26,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 02:00:26,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 02:00:26,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 02:00:26,282 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 02:00:26,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 02:00:26,283 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 -> cb0c3ec54bfe7ca5ae5031ed15e31d11f389c6f34b7a5ddeb0a5af3b415963cc [2025-03-08 02:00:26,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 02:00:26,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 02:00:26,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 02:00:26,538 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 02:00:26,539 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 02:00:26,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label24.c [2025-03-08 02:00:27,713 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/359f8112b/7300fb5ca4284a1f8b64e36ccba6c5c6/FLAG295934c67 [2025-03-08 02:00:28,043 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 02:00:28,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label24.c [2025-03-08 02:00:28,058 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/359f8112b/7300fb5ca4284a1f8b64e36ccba6c5c6/FLAG295934c67 [2025-03-08 02:00:28,074 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/359f8112b/7300fb5ca4284a1f8b64e36ccba6c5c6 [2025-03-08 02:00:28,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 02:00:28,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 02:00:28,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 02:00:28,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 02:00:28,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 02:00:28,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:28,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e9e34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28, skipping insertion in model container [2025-03-08 02:00:28,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:28,129 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 02:00:28,283 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/Problem15_label24.c[4739,4752] [2025-03-08 02:00:28,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:00:28,590 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 02:00:28,608 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/Problem15_label24.c[4739,4752] [2025-03-08 02:00:28,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:00:28,743 INFO L204 MainTranslator]: Completed translation [2025-03-08 02:00:28,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28 WrapperNode [2025-03-08 02:00:28,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 02:00:28,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 02:00:28,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 02:00:28,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 02:00:28,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:28,777 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:28,898 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1757 [2025-03-08 02:00:28,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 02:00:28,899 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 02:00:28,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 02:00:28,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 02:00:28,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:28,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:28,926 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:29,022 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]. [2025-03-08 02:00:29,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:29,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:29,074 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:29,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:29,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:29,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:29,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 02:00:29,146 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 02:00:29,146 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 02:00:29,146 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 02:00:29,147 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (1/1) ... [2025-03-08 02:00:29,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:00:29,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:00:29,173 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) [2025-03-08 02:00:29,175 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 [2025-03-08 02:00:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 02:00:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 02:00:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 02:00:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 02:00:29,248 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 02:00:29,250 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 02:00:31,265 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2025-03-08 02:00:31,331 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2025-03-08 02:00:31,332 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 02:00:31,358 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 02:00:31,358 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 02:00:31,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:00:31 BoogieIcfgContainer [2025-03-08 02:00:31,359 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 02:00:31,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 02:00:31,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 02:00:31,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 02:00:31,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 02:00:28" (1/3) ... [2025-03-08 02:00:31,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df7b866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:00:31, skipping insertion in model container [2025-03-08 02:00:31,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:28" (2/3) ... [2025-03-08 02:00:31,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df7b866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:00:31, skipping insertion in model container [2025-03-08 02:00:31,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:00:31" (3/3) ... [2025-03-08 02:00:31,367 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem15_label24.c [2025-03-08 02:00:31,380 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 02:00:31,382 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem15_label24.c that has 1 procedures, 424 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 02:00:31,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 02:00:31,452 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;@75317f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 02:00:31,452 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 02:00:31,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7748815165876777) internal successors, (749), 423 states have internal predecessors, (749), 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) [2025-03-08 02:00:31,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-08 02:00:31,463 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:31,463 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] [2025-03-08 02:00:31,464 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:31,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:31,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1185001010, now seen corresponding path program 1 times [2025-03-08 02:00:31,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:31,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16083747] [2025-03-08 02:00:31,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:31,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:31,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-08 02:00:31,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-08 02:00:31,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:31,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:31,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:31,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:31,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16083747] [2025-03-08 02:00:31,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16083747] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:31,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:31,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 02:00:31,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439568609] [2025-03-08 02:00:31,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:31,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:31,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:31,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:31,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:31,749 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7748815165876777) internal successors, (749), 423 states have internal predecessors, (749), 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 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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) [2025-03-08 02:00:33,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:33,421 INFO L93 Difference]: Finished difference Result 1154 states and 2103 transitions. [2025-03-08 02:00:33,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:33,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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 38 [2025-03-08 02:00:33,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:33,433 INFO L225 Difference]: With dead ends: 1154 [2025-03-08 02:00:33,433 INFO L226 Difference]: Without dead ends: 665 [2025-03-08 02:00:33,437 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 [2025-03-08 02:00:33,444 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 283 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:33,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 385 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-08 02:00:33,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2025-03-08 02:00:33,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 663. [2025-03-08 02:00:33,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 1.4818731117824773) internal successors, (981), 662 states have internal predecessors, (981), 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) [2025-03-08 02:00:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 981 transitions. [2025-03-08 02:00:33,494 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 981 transitions. Word has length 38 [2025-03-08 02:00:33,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:33,495 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 981 transitions. [2025-03-08 02:00:33,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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) [2025-03-08 02:00:33,495 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 981 transitions. [2025-03-08 02:00:33,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-08 02:00:33,499 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:33,499 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:00:33,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 02:00:33,500 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:33,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:33,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1577542350, now seen corresponding path program 1 times [2025-03-08 02:00:33,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:33,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140932132] [2025-03-08 02:00:33,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:33,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:33,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-08 02:00:33,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-08 02:00:33,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:33,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:33,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:33,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140932132] [2025-03-08 02:00:33,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140932132] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:33,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:33,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 02:00:33,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097349953] [2025-03-08 02:00:33,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:33,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:33,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:33,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:33,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:33,808 INFO L87 Difference]: Start difference. First operand 663 states and 981 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 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) [2025-03-08 02:00:34,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:34,847 INFO L93 Difference]: Finished difference Result 1624 states and 2315 transitions. [2025-03-08 02:00:34,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:34,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 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 103 [2025-03-08 02:00:34,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:34,851 INFO L225 Difference]: With dead ends: 1624 [2025-03-08 02:00:34,851 INFO L226 Difference]: Without dead ends: 963 [2025-03-08 02:00:34,854 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 [2025-03-08 02:00:34,855 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:34,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 337 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:34,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2025-03-08 02:00:34,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2025-03-08 02:00:34,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.362785862785863) internal successors, (1311), 962 states have internal predecessors, (1311), 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) [2025-03-08 02:00:34,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1311 transitions. [2025-03-08 02:00:34,889 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1311 transitions. Word has length 103 [2025-03-08 02:00:34,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:34,892 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1311 transitions. [2025-03-08 02:00:34,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 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) [2025-03-08 02:00:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1311 transitions. [2025-03-08 02:00:34,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-08 02:00:34,893 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:34,893 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:00:34,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 02:00:34,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:34,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:34,897 INFO L85 PathProgramCache]: Analyzing trace with hash -260514041, now seen corresponding path program 1 times [2025-03-08 02:00:34,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:34,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890958290] [2025-03-08 02:00:34,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:34,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:34,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 02:00:34,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 02:00:34,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:34,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:35,169 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:35,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:35,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890958290] [2025-03-08 02:00:35,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890958290] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:35,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:35,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 02:00:35,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031465042] [2025-03-08 02:00:35,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:35,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 02:00:35,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:35,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 02:00:35,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 02:00:35,171 INFO L87 Difference]: Start difference. First operand 963 states and 1311 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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) [2025-03-08 02:00:36,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:36,697 INFO L93 Difference]: Finished difference Result 2240 states and 3197 transitions. [2025-03-08 02:00:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 02:00:36,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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 108 [2025-03-08 02:00:36,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:36,702 INFO L225 Difference]: With dead ends: 2240 [2025-03-08 02:00:36,703 INFO L226 Difference]: Without dead ends: 1578 [2025-03-08 02:00:36,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 02:00:36,704 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 934 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:36,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 326 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-08 02:00:36,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2025-03-08 02:00:36,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1266. [2025-03-08 02:00:36,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 1.3043478260869565) internal successors, (1650), 1265 states have internal predecessors, (1650), 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) [2025-03-08 02:00:36,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1650 transitions. [2025-03-08 02:00:36,730 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1650 transitions. Word has length 108 [2025-03-08 02:00:36,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:36,731 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1650 transitions. [2025-03-08 02:00:36,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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) [2025-03-08 02:00:36,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1650 transitions. [2025-03-08 02:00:36,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2025-03-08 02:00:36,735 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:36,736 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:00:36,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 02:00:36,736 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:36,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:36,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1584475707, now seen corresponding path program 1 times [2025-03-08 02:00:36,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:36,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906678486] [2025-03-08 02:00:36,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:36,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:36,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-03-08 02:00:36,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-03-08 02:00:36,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:36,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:36,946 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:36,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:36,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906678486] [2025-03-08 02:00:36,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906678486] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:36,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:36,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:36,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5032748] [2025-03-08 02:00:36,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:36,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 02:00:36,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:36,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 02:00:36,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 02:00:36,949 INFO L87 Difference]: Start difference. First operand 1266 states and 1650 transitions. Second operand has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2025-03-08 02:00:39,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:39,299 INFO L93 Difference]: Finished difference Result 4670 states and 6170 transitions. [2025-03-08 02:00:39,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 02:00:39,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 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 204 [2025-03-08 02:00:39,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:39,309 INFO L225 Difference]: With dead ends: 4670 [2025-03-08 02:00:39,309 INFO L226 Difference]: Without dead ends: 3406 [2025-03-08 02:00:39,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 02:00:39,311 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 486 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:39,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 377 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-03-08 02:00:39,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2025-03-08 02:00:39,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 3381. [2025-03-08 02:00:39,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 3380 states have (on average 1.2366863905325445) internal successors, (4180), 3380 states have internal predecessors, (4180), 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) [2025-03-08 02:00:39,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 4180 transitions. [2025-03-08 02:00:39,359 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 4180 transitions. Word has length 204 [2025-03-08 02:00:39,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:39,360 INFO L471 AbstractCegarLoop]: Abstraction has 3381 states and 4180 transitions. [2025-03-08 02:00:39,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2025-03-08 02:00:39,360 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 4180 transitions. [2025-03-08 02:00:39,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2025-03-08 02:00:39,362 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:39,362 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:00:39,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 02:00:39,362 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:39,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:39,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1550440655, now seen corresponding path program 1 times [2025-03-08 02:00:39,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:39,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891211833] [2025-03-08 02:00:39,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:39,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:39,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-08 02:00:39,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-08 02:00:39,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:39,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:39,525 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-03-08 02:00:39,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:39,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891211833] [2025-03-08 02:00:39,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891211833] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:39,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:39,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 02:00:39,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834067936] [2025-03-08 02:00:39,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:39,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:39,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:39,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:39,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:39,528 INFO L87 Difference]: Start difference. First operand 3381 states and 4180 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2025-03-08 02:00:40,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:40,622 INFO L93 Difference]: Finished difference Result 8563 states and 10754 transitions. [2025-03-08 02:00:40,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:40,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 208 [2025-03-08 02:00:40,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:40,636 INFO L225 Difference]: With dead ends: 8563 [2025-03-08 02:00:40,636 INFO L226 Difference]: Without dead ends: 5483 [2025-03-08 02:00:40,640 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 [2025-03-08 02:00:40,642 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:40,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 340 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:40,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5483 states. [2025-03-08 02:00:40,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5483 to 5478. [2025-03-08 02:00:40,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.16870549570933) internal successors, (6401), 5477 states have internal predecessors, (6401), 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) [2025-03-08 02:00:40,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6401 transitions. [2025-03-08 02:00:40,736 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6401 transitions. Word has length 208 [2025-03-08 02:00:40,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:40,736 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6401 transitions. [2025-03-08 02:00:40,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2025-03-08 02:00:40,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6401 transitions. [2025-03-08 02:00:40,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2025-03-08 02:00:40,740 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:40,740 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 02:00:40,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 02:00:40,741 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:40,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:40,741 INFO L85 PathProgramCache]: Analyzing trace with hash 805142413, now seen corresponding path program 1 times [2025-03-08 02:00:40,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:40,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790840816] [2025-03-08 02:00:40,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:40,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:40,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 310 statements into 1 equivalence classes. [2025-03-08 02:00:40,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 310 of 310 statements. [2025-03-08 02:00:40,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:40,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-08 02:00:41,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:41,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790840816] [2025-03-08 02:00:41,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790840816] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:41,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:41,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 02:00:41,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079982773] [2025-03-08 02:00:41,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:41,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:41,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:41,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:41,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:41,190 INFO L87 Difference]: Start difference. First operand 5478 states and 6401 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 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) [2025-03-08 02:00:42,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:42,079 INFO L93 Difference]: Finished difference Result 10655 states and 12489 transitions. [2025-03-08 02:00:42,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:42,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 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 310 [2025-03-08 02:00:42,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:42,091 INFO L225 Difference]: With dead ends: 10655 [2025-03-08 02:00:42,092 INFO L226 Difference]: Without dead ends: 5478 [2025-03-08 02:00:42,097 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 [2025-03-08 02:00:42,097 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:42,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 02:00:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2025-03-08 02:00:42,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5478. [2025-03-08 02:00:42,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.1676100054774512) internal successors, (6395), 5477 states have internal predecessors, (6395), 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) [2025-03-08 02:00:42,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6395 transitions. [2025-03-08 02:00:42,212 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6395 transitions. Word has length 310 [2025-03-08 02:00:42,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:42,212 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6395 transitions. [2025-03-08 02:00:42,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 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) [2025-03-08 02:00:42,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6395 transitions. [2025-03-08 02:00:42,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2025-03-08 02:00:42,216 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:42,217 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2025-03-08 02:00:42,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 02:00:42,217 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:42,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:42,218 INFO L85 PathProgramCache]: Analyzing trace with hash 655628542, now seen corresponding path program 1 times [2025-03-08 02:00:42,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:42,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284814354] [2025-03-08 02:00:42,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:42,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:42,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 325 statements into 1 equivalence classes. [2025-03-08 02:00:42,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 325 of 325 statements. [2025-03-08 02:00:42,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:42,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:42,370 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-03-08 02:00:42,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:42,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284814354] [2025-03-08 02:00:42,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284814354] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:42,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:42,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:42,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373435341] [2025-03-08 02:00:42,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:42,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:42,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:42,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:42,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:42,372 INFO L87 Difference]: Start difference. First operand 5478 states and 6395 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2025-03-08 02:00:43,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:43,397 INFO L93 Difference]: Finished difference Result 11851 states and 14151 transitions. [2025-03-08 02:00:43,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:43,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 325 [2025-03-08 02:00:43,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:43,410 INFO L225 Difference]: With dead ends: 11851 [2025-03-08 02:00:43,410 INFO L226 Difference]: Without dead ends: 6674 [2025-03-08 02:00:43,414 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 [2025-03-08 02:00:43,415 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 277 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:43,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 324 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:43,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2025-03-08 02:00:43,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 4876. [2025-03-08 02:00:43,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4876 states, 4875 states have (on average 1.1805128205128206) internal successors, (5755), 4875 states have internal predecessors, (5755), 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) [2025-03-08 02:00:43,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 5755 transitions. [2025-03-08 02:00:43,479 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 5755 transitions. Word has length 325 [2025-03-08 02:00:43,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:43,480 INFO L471 AbstractCegarLoop]: Abstraction has 4876 states and 5755 transitions. [2025-03-08 02:00:43,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2025-03-08 02:00:43,481 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 5755 transitions. [2025-03-08 02:00:43,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2025-03-08 02:00:43,484 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:43,484 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 02:00:43,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 02:00:43,485 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:43,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:43,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1322037151, now seen corresponding path program 1 times [2025-03-08 02:00:43,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:43,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481494138] [2025-03-08 02:00:43,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:43,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:43,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 384 statements into 1 equivalence classes. [2025-03-08 02:00:43,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 384 of 384 statements. [2025-03-08 02:00:43,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:43,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-08 02:00:43,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:43,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481494138] [2025-03-08 02:00:43,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481494138] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:43,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:43,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:43,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362999156] [2025-03-08 02:00:43,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:43,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:43,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:43,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:43,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:43,734 INFO L87 Difference]: Start difference. First operand 4876 states and 5755 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2025-03-08 02:00:44,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:44,795 INFO L93 Difference]: Finished difference Result 11852 states and 14244 transitions. [2025-03-08 02:00:44,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:44,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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 384 [2025-03-08 02:00:44,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:44,810 INFO L225 Difference]: With dead ends: 11852 [2025-03-08 02:00:44,811 INFO L226 Difference]: Without dead ends: 7277 [2025-03-08 02:00:44,815 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 [2025-03-08 02:00:44,815 INFO L435 NwaCegarLoop]: 599 mSDtfsCounter, 290 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:44,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 636 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:44,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7277 states. [2025-03-08 02:00:44,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7277 to 6380. [2025-03-08 02:00:44,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6380 states, 6379 states have (on average 1.1558237968333596) internal successors, (7373), 6379 states have internal predecessors, (7373), 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) [2025-03-08 02:00:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6380 states to 6380 states and 7373 transitions. [2025-03-08 02:00:44,886 INFO L78 Accepts]: Start accepts. Automaton has 6380 states and 7373 transitions. Word has length 384 [2025-03-08 02:00:44,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:44,886 INFO L471 AbstractCegarLoop]: Abstraction has 6380 states and 7373 transitions. [2025-03-08 02:00:44,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2025-03-08 02:00:44,887 INFO L276 IsEmpty]: Start isEmpty. Operand 6380 states and 7373 transitions. [2025-03-08 02:00:44,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2025-03-08 02:00:44,892 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:44,893 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 02:00:44,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 02:00:44,894 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:44,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:44,894 INFO L85 PathProgramCache]: Analyzing trace with hash 631519079, now seen corresponding path program 1 times [2025-03-08 02:00:44,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:44,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351508492] [2025-03-08 02:00:44,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:44,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:44,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 390 statements into 1 equivalence classes. [2025-03-08 02:00:44,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 390 of 390 statements. [2025-03-08 02:00:44,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:44,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:45,197 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:45,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:45,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351508492] [2025-03-08 02:00:45,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351508492] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:45,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:45,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:45,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254424678] [2025-03-08 02:00:45,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:45,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:45,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:45,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:45,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:45,200 INFO L87 Difference]: Start difference. First operand 6380 states and 7373 transitions. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) [2025-03-08 02:00:46,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:46,358 INFO L93 Difference]: Finished difference Result 14563 states and 17152 transitions. [2025-03-08 02:00:46,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:46,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 390 [2025-03-08 02:00:46,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:46,371 INFO L225 Difference]: With dead ends: 14563 [2025-03-08 02:00:46,371 INFO L226 Difference]: Without dead ends: 8484 [2025-03-08 02:00:46,375 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 [2025-03-08 02:00:46,376 INFO L435 NwaCegarLoop]: 564 mSDtfsCounter, 250 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:46,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 602 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 02:00:46,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8484 states. [2025-03-08 02:00:46,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8484 to 8182. [2025-03-08 02:00:46,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8182 states, 8181 states have (on average 1.135558000244469) internal successors, (9290), 8181 states have internal predecessors, (9290), 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) [2025-03-08 02:00:46,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8182 states to 8182 states and 9290 transitions. [2025-03-08 02:00:46,439 INFO L78 Accepts]: Start accepts. Automaton has 8182 states and 9290 transitions. Word has length 390 [2025-03-08 02:00:46,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:46,439 INFO L471 AbstractCegarLoop]: Abstraction has 8182 states and 9290 transitions. [2025-03-08 02:00:46,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) [2025-03-08 02:00:46,439 INFO L276 IsEmpty]: Start isEmpty. Operand 8182 states and 9290 transitions. [2025-03-08 02:00:46,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2025-03-08 02:00:46,441 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:46,442 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2025-03-08 02:00:46,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 02:00:46,442 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:46,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:46,442 INFO L85 PathProgramCache]: Analyzing trace with hash -17873707, now seen corresponding path program 1 times [2025-03-08 02:00:46,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:46,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647019121] [2025-03-08 02:00:46,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:46,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:46,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 406 statements into 1 equivalence classes. [2025-03-08 02:00:46,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 406 of 406 statements. [2025-03-08 02:00:46,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:46,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-03-08 02:00:46,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:46,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647019121] [2025-03-08 02:00:46,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647019121] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:46,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:46,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:46,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461397282] [2025-03-08 02:00:46,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:46,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:46,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:46,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:46,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:46,637 INFO L87 Difference]: Start difference. First operand 8182 states and 9290 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2025-03-08 02:00:47,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:47,644 INFO L93 Difference]: Finished difference Result 17857 states and 20650 transitions. [2025-03-08 02:00:47,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:47,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 406 [2025-03-08 02:00:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:47,658 INFO L225 Difference]: With dead ends: 17857 [2025-03-08 02:00:47,658 INFO L226 Difference]: Without dead ends: 9976 [2025-03-08 02:00:47,685 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 [2025-03-08 02:00:47,686 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 245 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:47,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 619 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:47,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9976 states. [2025-03-08 02:00:47,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9976 to 9673. [2025-03-08 02:00:47,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9673 states, 9672 states have (on average 1.1267576509511994) internal successors, (10898), 9672 states have internal predecessors, (10898), 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) [2025-03-08 02:00:47,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9673 states to 9673 states and 10898 transitions. [2025-03-08 02:00:47,754 INFO L78 Accepts]: Start accepts. Automaton has 9673 states and 10898 transitions. Word has length 406 [2025-03-08 02:00:47,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:47,755 INFO L471 AbstractCegarLoop]: Abstraction has 9673 states and 10898 transitions. [2025-03-08 02:00:47,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2025-03-08 02:00:47,755 INFO L276 IsEmpty]: Start isEmpty. Operand 9673 states and 10898 transitions. [2025-03-08 02:00:47,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2025-03-08 02:00:47,758 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:47,759 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 02:00:47,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 02:00:47,759 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:47,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:47,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1560648747, now seen corresponding path program 1 times [2025-03-08 02:00:47,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:47,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34335770] [2025-03-08 02:00:47,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:47,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:47,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 502 statements into 1 equivalence classes. [2025-03-08 02:00:47,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 502 of 502 statements. [2025-03-08 02:00:47,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:47,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:47,914 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2025-03-08 02:00:47,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:47,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34335770] [2025-03-08 02:00:47,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34335770] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:47,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:47,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:47,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031286930] [2025-03-08 02:00:47,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:47,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:47,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:47,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:47,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:47,917 INFO L87 Difference]: Start difference. First operand 9673 states and 10898 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 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) [2025-03-08 02:00:48,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:48,980 INFO L93 Difference]: Finished difference Result 21436 states and 24446 transitions. [2025-03-08 02:00:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:48,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 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) Word has length 502 [2025-03-08 02:00:48,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:48,995 INFO L225 Difference]: With dead ends: 21436 [2025-03-08 02:00:48,995 INFO L226 Difference]: Without dead ends: 12064 [2025-03-08 02:00:49,002 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 [2025-03-08 02:00:49,003 INFO L435 NwaCegarLoop]: 426 mSDtfsCounter, 377 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:49,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 446 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:49,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12064 states. [2025-03-08 02:00:49,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12064 to 12064. [2025-03-08 02:00:49,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12064 states, 12063 states have (on average 1.1321396004310702) internal successors, (13657), 12063 states have internal predecessors, (13657), 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) [2025-03-08 02:00:49,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12064 states to 12064 states and 13657 transitions. [2025-03-08 02:00:49,106 INFO L78 Accepts]: Start accepts. Automaton has 12064 states and 13657 transitions. Word has length 502 [2025-03-08 02:00:49,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:49,107 INFO L471 AbstractCegarLoop]: Abstraction has 12064 states and 13657 transitions. [2025-03-08 02:00:49,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 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) [2025-03-08 02:00:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 12064 states and 13657 transitions. [2025-03-08 02:00:49,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2025-03-08 02:00:49,111 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:49,111 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:00:49,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 02:00:49,111 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:49,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:49,112 INFO L85 PathProgramCache]: Analyzing trace with hash -389602348, now seen corresponding path program 1 times [2025-03-08 02:00:49,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:49,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072325535] [2025-03-08 02:00:49,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:49,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:49,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 526 statements into 1 equivalence classes. [2025-03-08 02:00:49,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 526 of 526 statements. [2025-03-08 02:00:49,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:49,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:49,392 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 379 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2025-03-08 02:00:49,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:49,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072325535] [2025-03-08 02:00:49,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072325535] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:49,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:49,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:49,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89581468] [2025-03-08 02:00:49,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:49,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:49,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:49,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:49,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:49,395 INFO L87 Difference]: Start difference. First operand 12064 states and 13657 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2025-03-08 02:00:50,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:50,527 INFO L93 Difference]: Finished difference Result 28625 states and 32702 transitions. [2025-03-08 02:00:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:50,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 526 [2025-03-08 02:00:50,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:50,551 INFO L225 Difference]: With dead ends: 28625 [2025-03-08 02:00:50,552 INFO L226 Difference]: Without dead ends: 16862 [2025-03-08 02:00:50,563 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 [2025-03-08 02:00:50,564 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 246 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:50,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 623 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:50,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16862 states. [2025-03-08 02:00:50,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16862 to 15954. [2025-03-08 02:00:50,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15954 states, 15953 states have (on average 1.1254309534256879) internal successors, (17954), 15953 states have internal predecessors, (17954), 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) [2025-03-08 02:00:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15954 states to 15954 states and 17954 transitions. [2025-03-08 02:00:50,783 INFO L78 Accepts]: Start accepts. Automaton has 15954 states and 17954 transitions. Word has length 526 [2025-03-08 02:00:50,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:50,784 INFO L471 AbstractCegarLoop]: Abstraction has 15954 states and 17954 transitions. [2025-03-08 02:00:50,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2025-03-08 02:00:50,784 INFO L276 IsEmpty]: Start isEmpty. Operand 15954 states and 17954 transitions. [2025-03-08 02:00:50,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2025-03-08 02:00:50,793 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:50,794 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:00:50,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 02:00:50,794 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:50,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:50,795 INFO L85 PathProgramCache]: Analyzing trace with hash -2007495068, now seen corresponding path program 1 times [2025-03-08 02:00:50,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:50,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983266257] [2025-03-08 02:00:50,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:50,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:50,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 593 statements into 1 equivalence classes. [2025-03-08 02:00:50,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 593 of 593 statements. [2025-03-08 02:00:50,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:50,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:51,205 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 568 proven. 39 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-03-08 02:00:51,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:51,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983266257] [2025-03-08 02:00:51,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983266257] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 02:00:51,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365316861] [2025-03-08 02:00:51,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:51,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:00:51,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:00:51,212 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 02:00:51,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 02:00:51,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 593 statements into 1 equivalence classes. [2025-03-08 02:00:51,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 593 of 593 statements. [2025-03-08 02:00:51,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:51,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:51,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 02:00:51,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 02:00:52,036 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 568 proven. 39 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-03-08 02:00:52,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 02:00:52,643 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 568 proven. 39 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-03-08 02:00:52,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365316861] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 02:00:52,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 02:00:52,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-03-08 02:00:52,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943489795] [2025-03-08 02:00:52,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 02:00:52,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 02:00:52,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:52,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 02:00:52,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-08 02:00:52,646 INFO L87 Difference]: Start difference. First operand 15954 states and 17954 transitions. Second operand has 9 states, 9 states have (on average 80.77777777777777) internal successors, (727), 8 states have internal predecessors, (727), 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) [2025-03-08 02:00:57,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:57,526 INFO L93 Difference]: Finished difference Result 40238 states and 45011 transitions. [2025-03-08 02:00:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-08 02:00:57,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 80.77777777777777) internal successors, (727), 8 states have internal predecessors, (727), 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 593 [2025-03-08 02:00:57,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:57,547 INFO L225 Difference]: With dead ends: 40238 [2025-03-08 02:00:57,547 INFO L226 Difference]: Without dead ends: 17747 [2025-03-08 02:00:57,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1195 GetRequests, 1181 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2025-03-08 02:00:57,563 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 2682 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 7530 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 8141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 7530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:57,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 352 Invalid, 8141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 7530 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2025-03-08 02:00:57,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17747 states. [2025-03-08 02:00:57,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17747 to 12661. [2025-03-08 02:00:57,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12661 states, 12660 states have (on average 1.068562401263823) internal successors, (13528), 12660 states have internal predecessors, (13528), 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) [2025-03-08 02:00:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12661 states to 12661 states and 13528 transitions. [2025-03-08 02:00:57,766 INFO L78 Accepts]: Start accepts. Automaton has 12661 states and 13528 transitions. Word has length 593 [2025-03-08 02:00:57,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:57,766 INFO L471 AbstractCegarLoop]: Abstraction has 12661 states and 13528 transitions. [2025-03-08 02:00:57,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.77777777777777) internal successors, (727), 8 states have internal predecessors, (727), 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) [2025-03-08 02:00:57,766 INFO L276 IsEmpty]: Start isEmpty. Operand 12661 states and 13528 transitions. [2025-03-08 02:00:57,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2025-03-08 02:00:57,771 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:57,771 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 02:00:57,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 02:00:57,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-08 02:00:57,972 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:57,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:57,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1863909987, now seen corresponding path program 1 times [2025-03-08 02:00:57,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:57,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028001221] [2025-03-08 02:00:57,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:57,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:58,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 618 statements into 1 equivalence classes. [2025-03-08 02:00:58,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 618 of 618 statements. [2025-03-08 02:00:58,036 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:58,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:58,180 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2025-03-08 02:00:58,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:58,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028001221] [2025-03-08 02:00:58,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028001221] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:58,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:58,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819276152] [2025-03-08 02:00:58,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:58,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:58,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:58,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:58,182 INFO L87 Difference]: Start difference. First operand 12661 states and 13528 transitions. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2025-03-08 02:00:58,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:58,832 INFO L93 Difference]: Finished difference Result 25318 states and 27064 transitions. [2025-03-08 02:00:58,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:58,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 618 [2025-03-08 02:00:58,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:58,874 INFO L225 Difference]: With dead ends: 25318 [2025-03-08 02:00:58,874 INFO L226 Difference]: Without dead ends: 12958 [2025-03-08 02:00:58,877 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 [2025-03-08 02:00:58,877 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 437 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:58,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 69 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 02:00:58,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12958 states. [2025-03-08 02:00:58,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12958 to 12659. [2025-03-08 02:00:58,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12659 states, 12658 states have (on average 1.0684152314741666) internal successors, (13524), 12658 states have internal predecessors, (13524), 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) [2025-03-08 02:00:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12659 states to 12659 states and 13524 transitions. [2025-03-08 02:00:59,002 INFO L78 Accepts]: Start accepts. Automaton has 12659 states and 13524 transitions. Word has length 618 [2025-03-08 02:00:59,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:59,003 INFO L471 AbstractCegarLoop]: Abstraction has 12659 states and 13524 transitions. [2025-03-08 02:00:59,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2025-03-08 02:00:59,003 INFO L276 IsEmpty]: Start isEmpty. Operand 12659 states and 13524 transitions. [2025-03-08 02:00:59,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2025-03-08 02:00:59,010 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:59,011 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:00:59,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 02:00:59,011 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:59,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:59,012 INFO L85 PathProgramCache]: Analyzing trace with hash 230026047, now seen corresponding path program 1 times [2025-03-08 02:00:59,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:59,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761481645] [2025-03-08 02:00:59,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:59,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:59,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 639 statements into 1 equivalence classes. [2025-03-08 02:00:59,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 639 of 639 statements. [2025-03-08 02:00:59,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:59,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:59,245 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2025-03-08 02:00:59,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:59,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761481645] [2025-03-08 02:00:59,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761481645] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:59,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:59,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:59,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393699853] [2025-03-08 02:00:59,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:59,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:59,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:59,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:59,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:59,247 INFO L87 Difference]: Start difference. First operand 12659 states and 13524 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2025-03-08 02:00:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:59,931 INFO L93 Difference]: Finished difference Result 29201 states and 31263 transitions. [2025-03-08 02:00:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:59,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 639 [2025-03-08 02:00:59,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:59,946 INFO L225 Difference]: With dead ends: 29201 [2025-03-08 02:00:59,946 INFO L226 Difference]: Without dead ends: 16544 [2025-03-08 02:00:59,955 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 [2025-03-08 02:00:59,955 INFO L435 NwaCegarLoop]: 505 mSDtfsCounter, 277 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:59,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 543 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 02:00:59,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16544 states. [2025-03-08 02:01:00,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16544 to 15647. [2025-03-08 02:01:00,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15647 states, 15646 states have (on average 1.056755720311901) internal successors, (16534), 15646 states have internal predecessors, (16534), 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) [2025-03-08 02:01:00,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15647 states to 15647 states and 16534 transitions. [2025-03-08 02:01:00,122 INFO L78 Accepts]: Start accepts. Automaton has 15647 states and 16534 transitions. Word has length 639 [2025-03-08 02:01:00,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:00,122 INFO L471 AbstractCegarLoop]: Abstraction has 15647 states and 16534 transitions. [2025-03-08 02:01:00,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2025-03-08 02:01:00,122 INFO L276 IsEmpty]: Start isEmpty. Operand 15647 states and 16534 transitions. [2025-03-08 02:01:00,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2025-03-08 02:01:00,127 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:00,127 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:01:00,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 02:01:00,128 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:00,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:00,128 INFO L85 PathProgramCache]: Analyzing trace with hash 546721826, now seen corresponding path program 1 times [2025-03-08 02:01:00,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:00,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430970100] [2025-03-08 02:01:00,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:00,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:00,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 663 statements into 1 equivalence classes. [2025-03-08 02:01:00,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 663 of 663 statements. [2025-03-08 02:01:00,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:00,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:00,698 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2025-03-08 02:01:00,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:00,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430970100] [2025-03-08 02:01:00,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430970100] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:01:00,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:01:00,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:01:00,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001743255] [2025-03-08 02:01:00,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:01:00,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:01:00,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:00,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:01:00,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:01:00,700 INFO L87 Difference]: Start difference. First operand 15647 states and 16534 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 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) [2025-03-08 02:01:01,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:01,335 INFO L93 Difference]: Finished difference Result 31298 states and 33073 transitions. [2025-03-08 02:01:01,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:01:01,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 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) Word has length 663 [2025-03-08 02:01:01,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:01,347 INFO L225 Difference]: With dead ends: 31298 [2025-03-08 02:01:01,347 INFO L226 Difference]: Without dead ends: 15653 [2025-03-08 02:01:01,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:01:01,355 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 334 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:01,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 136 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 02:01:01,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15653 states. [2025-03-08 02:01:01,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15653 to 15049. [2025-03-08 02:01:01,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15049 states, 15048 states have (on average 1.046916533758639) internal successors, (15754), 15048 states have internal predecessors, (15754), 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) [2025-03-08 02:01:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15049 states to 15049 states and 15754 transitions. [2025-03-08 02:01:01,472 INFO L78 Accepts]: Start accepts. Automaton has 15049 states and 15754 transitions. Word has length 663 [2025-03-08 02:01:01,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:01,472 INFO L471 AbstractCegarLoop]: Abstraction has 15049 states and 15754 transitions. [2025-03-08 02:01:01,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 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) [2025-03-08 02:01:01,472 INFO L276 IsEmpty]: Start isEmpty. Operand 15049 states and 15754 transitions. [2025-03-08 02:01:01,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2025-03-08 02:01:01,477 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:01,477 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:01:01,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 02:01:01,477 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:01,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:01,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1373790535, now seen corresponding path program 1 times [2025-03-08 02:01:01,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:01,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585178480] [2025-03-08 02:01:01,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:01,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:01,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 663 statements into 1 equivalence classes. [2025-03-08 02:01:01,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 663 of 663 statements. [2025-03-08 02:01:01,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:01,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:01,730 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2025-03-08 02:01:01,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:01,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585178480] [2025-03-08 02:01:01,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585178480] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:01:01,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:01:01,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:01:01,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914393002] [2025-03-08 02:01:01,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:01:01,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:01:01,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:01,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:01:01,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:01:01,732 INFO L87 Difference]: Start difference. First operand 15049 states and 15754 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2025-03-08 02:01:02,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:02,551 INFO L93 Difference]: Finished difference Result 33083 states and 34703 transitions. [2025-03-08 02:01:02,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:01:02,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 663 [2025-03-08 02:01:02,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:02,569 INFO L225 Difference]: With dead ends: 33083 [2025-03-08 02:01:02,570 INFO L226 Difference]: Without dead ends: 18036 [2025-03-08 02:01:02,582 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 [2025-03-08 02:01:02,582 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 302 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:02,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 168 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 02:01:02,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18036 states. [2025-03-08 02:01:02,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18036 to 17138. [2025-03-08 02:01:02,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17138 states, 17137 states have (on average 1.0430063605065063) internal successors, (17874), 17137 states have internal predecessors, (17874), 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) [2025-03-08 02:01:02,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17138 states to 17138 states and 17874 transitions. [2025-03-08 02:01:02,705 INFO L78 Accepts]: Start accepts. Automaton has 17138 states and 17874 transitions. Word has length 663 [2025-03-08 02:01:02,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:02,705 INFO L471 AbstractCegarLoop]: Abstraction has 17138 states and 17874 transitions. [2025-03-08 02:01:02,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2025-03-08 02:01:02,705 INFO L276 IsEmpty]: Start isEmpty. Operand 17138 states and 17874 transitions. [2025-03-08 02:01:02,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2025-03-08 02:01:02,710 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:02,711 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2025-03-08 02:01:02,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-08 02:01:02,711 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:02,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:02,711 INFO L85 PathProgramCache]: Analyzing trace with hash 93145589, now seen corresponding path program 1 times [2025-03-08 02:01:02,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:02,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178177477] [2025-03-08 02:01:02,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:02,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:02,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 670 statements into 1 equivalence classes. [2025-03-08 02:01:02,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 670 of 670 statements. [2025-03-08 02:01:02,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:02,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 551 proven. 190 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-08 02:01:03,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:03,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178177477] [2025-03-08 02:01:03,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178177477] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 02:01:03,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487321416] [2025-03-08 02:01:03,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:03,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:01:03,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:01:03,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 02:01:03,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 02:01:03,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 670 statements into 1 equivalence classes. [2025-03-08 02:01:03,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 670 of 670 statements. [2025-03-08 02:01:03,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:03,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:03,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 02:01:03,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 02:01:03,895 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2025-03-08 02:01:03,895 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 02:01:03,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487321416] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:01:03,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 02:01:03,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-03-08 02:01:03,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819263145] [2025-03-08 02:01:03,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:01:03,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:01:03,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:03,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:01:03,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-08 02:01:03,897 INFO L87 Difference]: Start difference. First operand 17138 states and 17874 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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) [2025-03-08 02:01:04,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:04,871 INFO L93 Difference]: Finished difference Result 40276 states and 42056 transitions. [2025-03-08 02:01:04,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:01:04,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 670 [2025-03-08 02:01:04,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:04,892 INFO L225 Difference]: With dead ends: 40276 [2025-03-08 02:01:04,892 INFO L226 Difference]: Without dead ends: 23140 [2025-03-08 02:01:04,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-08 02:01:04,898 INFO L435 NwaCegarLoop]: 455 mSDtfsCounter, 302 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:04,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 482 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 02:01:04,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23140 states. [2025-03-08 02:01:05,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23140 to 21932. [2025-03-08 02:01:05,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21932 states, 21931 states have (on average 1.043089690392595) internal successors, (22876), 21931 states have internal predecessors, (22876), 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) [2025-03-08 02:01:05,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21932 states to 21932 states and 22876 transitions. [2025-03-08 02:01:05,048 INFO L78 Accepts]: Start accepts. Automaton has 21932 states and 22876 transitions. Word has length 670 [2025-03-08 02:01:05,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:05,048 INFO L471 AbstractCegarLoop]: Abstraction has 21932 states and 22876 transitions. [2025-03-08 02:01:05,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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) [2025-03-08 02:01:05,048 INFO L276 IsEmpty]: Start isEmpty. Operand 21932 states and 22876 transitions. [2025-03-08 02:01:05,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2025-03-08 02:01:05,057 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:05,057 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 02:01:05,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 02:01:05,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-08 02:01:05,258 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:05,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:05,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1010922950, now seen corresponding path program 1 times [2025-03-08 02:01:05,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:05,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630537300] [2025-03-08 02:01:05,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:05,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:05,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 756 statements into 1 equivalence classes. [2025-03-08 02:01:05,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 756 of 756 statements. [2025-03-08 02:01:05,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:05,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:06,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1198 backedges. 522 proven. 390 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2025-03-08 02:01:06,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:06,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630537300] [2025-03-08 02:01:06,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630537300] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 02:01:06,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700966576] [2025-03-08 02:01:06,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:06,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:01:06,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:01:06,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 02:01:06,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 02:01:06,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 756 statements into 1 equivalence classes. [2025-03-08 02:01:06,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 756 of 756 statements. [2025-03-08 02:01:06,396 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:06,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:06,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 02:01:06,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 02:01:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1198 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2025-03-08 02:01:06,606 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 02:01:06,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700966576] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:01:06,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 02:01:06,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-03-08 02:01:06,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229253434] [2025-03-08 02:01:06,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:01:06,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:01:06,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:06,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:01:06,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 02:01:06,610 INFO L87 Difference]: Start difference. First operand 21932 states and 22876 transitions. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) [2025-03-08 02:01:07,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:07,295 INFO L93 Difference]: Finished difference Result 43254 states and 45129 transitions. [2025-03-08 02:01:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:01:07,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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 756 [2025-03-08 02:01:07,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:07,317 INFO L225 Difference]: With dead ends: 43254 [2025-03-08 02:01:07,317 INFO L226 Difference]: Without dead ends: 21623 [2025-03-08 02:01:07,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 757 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 02:01:07,330 INFO L435 NwaCegarLoop]: 461 mSDtfsCounter, 179 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:07,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 494 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 02:01:07,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21623 states. [2025-03-08 02:01:07,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21623 to 20720. [2025-03-08 02:01:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20720 states, 20719 states have (on average 1.0287176022008784) internal successors, (21314), 20719 states have internal predecessors, (21314), 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) [2025-03-08 02:01:07,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20720 states to 20720 states and 21314 transitions. [2025-03-08 02:01:07,552 INFO L78 Accepts]: Start accepts. Automaton has 20720 states and 21314 transitions. Word has length 756 [2025-03-08 02:01:07,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:07,552 INFO L471 AbstractCegarLoop]: Abstraction has 20720 states and 21314 transitions. [2025-03-08 02:01:07,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) [2025-03-08 02:01:07,553 INFO L276 IsEmpty]: Start isEmpty. Operand 20720 states and 21314 transitions. [2025-03-08 02:01:07,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2025-03-08 02:01:07,565 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:07,565 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 02:01:07,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 02:01:07,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:01:07,766 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:07,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:07,767 INFO L85 PathProgramCache]: Analyzing trace with hash -561707583, now seen corresponding path program 1 times [2025-03-08 02:01:07,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:07,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232183440] [2025-03-08 02:01:07,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:07,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:07,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 758 statements into 1 equivalence classes. [2025-03-08 02:01:07,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 758 of 758 statements. [2025-03-08 02:01:07,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:07,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:08,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 626 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2025-03-08 02:01:08,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:08,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232183440] [2025-03-08 02:01:08,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232183440] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:01:08,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:01:08,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:01:08,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557523841] [2025-03-08 02:01:08,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:01:08,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:01:08,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:08,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:01:08,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:01:08,025 INFO L87 Difference]: Start difference. First operand 20720 states and 21314 transitions. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) [2025-03-08 02:01:08,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:08,703 INFO L93 Difference]: Finished difference Result 33017 states and 33949 transitions. [2025-03-08 02:01:08,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:01:08,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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 758 [2025-03-08 02:01:08,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:08,718 INFO L225 Difference]: With dead ends: 33017 [2025-03-08 02:01:08,718 INFO L226 Difference]: Without dead ends: 12598 [2025-03-08 02:01:08,729 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 [2025-03-08 02:01:08,730 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 190 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:08,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 367 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 02:01:08,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12598 states. [2025-03-08 02:01:08,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12598 to 11701. [2025-03-08 02:01:08,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11701 states, 11700 states have (on average 1.0217948717948717) internal successors, (11955), 11700 states have internal predecessors, (11955), 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) [2025-03-08 02:01:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11701 states to 11701 states and 11955 transitions. [2025-03-08 02:01:08,861 INFO L78 Accepts]: Start accepts. Automaton has 11701 states and 11955 transitions. Word has length 758 [2025-03-08 02:01:08,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:08,861 INFO L471 AbstractCegarLoop]: Abstraction has 11701 states and 11955 transitions. [2025-03-08 02:01:08,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) [2025-03-08 02:01:08,861 INFO L276 IsEmpty]: Start isEmpty. Operand 11701 states and 11955 transitions. [2025-03-08 02:01:08,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2025-03-08 02:01:08,870 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:08,870 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 02:01:08,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 02:01:08,870 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:08,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:08,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1496366427, now seen corresponding path program 1 times [2025-03-08 02:01:08,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:08,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038109157] [2025-03-08 02:01:08,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:08,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:08,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 801 statements into 1 equivalence classes. [2025-03-08 02:01:08,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 801 of 801 statements. [2025-03-08 02:01:08,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:08,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:09,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 662 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2025-03-08 02:01:09,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:09,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038109157] [2025-03-08 02:01:09,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038109157] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:01:09,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:01:09,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:01:09,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335969177] [2025-03-08 02:01:09,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:01:09,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:01:09,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:09,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:01:09,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:01:09,272 INFO L87 Difference]: Start difference. First operand 11701 states and 11955 transitions. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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) [2025-03-08 02:01:09,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:09,866 INFO L93 Difference]: Finished difference Result 24604 states and 25133 transitions. [2025-03-08 02:01:09,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:01:09,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 801 [2025-03-08 02:01:09,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:09,877 INFO L225 Difference]: With dead ends: 24604 [2025-03-08 02:01:09,878 INFO L226 Difference]: Without dead ends: 13204 [2025-03-08 02:01:09,884 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 [2025-03-08 02:01:09,884 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 168 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:09,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 110 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 02:01:09,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13204 states. [2025-03-08 02:01:09,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13204 to 11402. [2025-03-08 02:01:09,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11402 states, 11401 states have (on average 1.0204368037891414) internal successors, (11634), 11401 states have internal predecessors, (11634), 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) [2025-03-08 02:01:09,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11402 states to 11402 states and 11634 transitions. [2025-03-08 02:01:09,963 INFO L78 Accepts]: Start accepts. Automaton has 11402 states and 11634 transitions. Word has length 801 [2025-03-08 02:01:09,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:09,963 INFO L471 AbstractCegarLoop]: Abstraction has 11402 states and 11634 transitions. [2025-03-08 02:01:09,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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) [2025-03-08 02:01:09,963 INFO L276 IsEmpty]: Start isEmpty. Operand 11402 states and 11634 transitions. [2025-03-08 02:01:09,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2025-03-08 02:01:09,972 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:09,972 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:01:09,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-08 02:01:09,972 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:09,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:09,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2014464401, now seen corresponding path program 1 times [2025-03-08 02:01:09,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:09,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416395405] [2025-03-08 02:01:09,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:09,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:10,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 880 statements into 1 equivalence classes. [2025-03-08 02:01:10,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 880 of 880 statements. [2025-03-08 02:01:10,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:10,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:10,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 748 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2025-03-08 02:01:10,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:10,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416395405] [2025-03-08 02:01:10,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416395405] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:01:10,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:01:10,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:01:10,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829623580] [2025-03-08 02:01:10,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:01:10,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:01:10,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:10,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:01:10,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:01:10,264 INFO L87 Difference]: Start difference. First operand 11402 states and 11634 transitions. Second operand has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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) [2025-03-08 02:01:10,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:10,810 INFO L93 Difference]: Finished difference Result 23997 states and 24489 transitions. [2025-03-08 02:01:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:01:10,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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 880 [2025-03-08 02:01:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:10,824 INFO L225 Difference]: With dead ends: 23997 [2025-03-08 02:01:10,824 INFO L226 Difference]: Without dead ends: 12896 [2025-03-08 02:01:10,831 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 [2025-03-08 02:01:10,832 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 62 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:10,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 84 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 02:01:10,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12896 states. [2025-03-08 02:01:10,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12896 to 10803. [2025-03-08 02:01:10,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10803 states, 10802 states have (on average 1.016756156267358) internal successors, (10983), 10802 states have internal predecessors, (10983), 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) [2025-03-08 02:01:10,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10803 states to 10803 states and 10983 transitions. [2025-03-08 02:01:10,907 INFO L78 Accepts]: Start accepts. Automaton has 10803 states and 10983 transitions. Word has length 880 [2025-03-08 02:01:10,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:10,907 INFO L471 AbstractCegarLoop]: Abstraction has 10803 states and 10983 transitions. [2025-03-08 02:01:10,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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) [2025-03-08 02:01:10,907 INFO L276 IsEmpty]: Start isEmpty. Operand 10803 states and 10983 transitions. [2025-03-08 02:01:10,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 894 [2025-03-08 02:01:10,915 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:10,915 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:01:10,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-08 02:01:10,915 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:10,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:10,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1740270014, now seen corresponding path program 1 times [2025-03-08 02:01:10,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:10,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046093372] [2025-03-08 02:01:10,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:10,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:10,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 893 statements into 1 equivalence classes. [2025-03-08 02:01:11,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 893 of 893 statements. [2025-03-08 02:01:11,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:11,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2025-03-08 02:01:11,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:11,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046093372] [2025-03-08 02:01:11,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046093372] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:01:11,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:01:11,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:01:11,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862357023] [2025-03-08 02:01:11,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:01:11,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:01:11,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:11,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:01:11,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:01:11,501 INFO L87 Difference]: Start difference. First operand 10803 states and 10983 transitions. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2025-03-08 02:01:12,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:12,072 INFO L93 Difference]: Finished difference Result 23105 states and 23494 transitions. [2025-03-08 02:01:12,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:01:12,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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 893 [2025-03-08 02:01:12,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:12,082 INFO L225 Difference]: With dead ends: 23105 [2025-03-08 02:01:12,082 INFO L226 Difference]: Without dead ends: 12603 [2025-03-08 02:01:12,088 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 [2025-03-08 02:01:12,088 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 177 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:12,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 73 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 02:01:12,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12603 states. [2025-03-08 02:01:12,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12603 to 9904. [2025-03-08 02:01:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9904 states, 9903 states have (on average 1.0163586791881247) internal successors, (10065), 9903 states have internal predecessors, (10065), 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) [2025-03-08 02:01:12,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9904 states to 9904 states and 10065 transitions. [2025-03-08 02:01:12,161 INFO L78 Accepts]: Start accepts. Automaton has 9904 states and 10065 transitions. Word has length 893 [2025-03-08 02:01:12,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:12,161 INFO L471 AbstractCegarLoop]: Abstraction has 9904 states and 10065 transitions. [2025-03-08 02:01:12,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2025-03-08 02:01:12,161 INFO L276 IsEmpty]: Start isEmpty. Operand 9904 states and 10065 transitions. [2025-03-08 02:01:12,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 965 [2025-03-08 02:01:12,171 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:12,171 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2025-03-08 02:01:12,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-08 02:01:12,171 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:12,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:12,172 INFO L85 PathProgramCache]: Analyzing trace with hash -823698175, now seen corresponding path program 1 times [2025-03-08 02:01:12,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:12,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512557648] [2025-03-08 02:01:12,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:12,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:12,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 964 statements into 1 equivalence classes. [2025-03-08 02:01:12,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 964 of 964 statements. [2025-03-08 02:01:12,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:12,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:12,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1233 backedges. 734 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2025-03-08 02:01:12,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:12,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512557648] [2025-03-08 02:01:12,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512557648] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:01:12,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:01:12,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:01:12,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880733203] [2025-03-08 02:01:12,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:01:12,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:01:12,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:12,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:01:12,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:01:12,524 INFO L87 Difference]: Start difference. First operand 9904 states and 10065 transitions. Second operand has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 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) [2025-03-08 02:01:13,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:13,053 INFO L93 Difference]: Finished difference Result 20104 states and 20434 transitions. [2025-03-08 02:01:13,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:01:13,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 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 964 [2025-03-08 02:01:13,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:13,062 INFO L225 Difference]: With dead ends: 20104 [2025-03-08 02:01:13,063 INFO L226 Difference]: Without dead ends: 10501 [2025-03-08 02:01:13,067 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 [2025-03-08 02:01:13,068 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 311 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:13,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 401 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 02:01:13,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10501 states. [2025-03-08 02:01:13,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10501 to 9604. [2025-03-08 02:01:13,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9604 states, 9603 states have (on average 1.0159325210871604) internal successors, (9756), 9603 states have internal predecessors, (9756), 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) [2025-03-08 02:01:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9604 states to 9604 states and 9756 transitions. [2025-03-08 02:01:13,146 INFO L78 Accepts]: Start accepts. Automaton has 9604 states and 9756 transitions. Word has length 964 [2025-03-08 02:01:13,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:13,147 INFO L471 AbstractCegarLoop]: Abstraction has 9604 states and 9756 transitions. [2025-03-08 02:01:13,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 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) [2025-03-08 02:01:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 9604 states and 9756 transitions. [2025-03-08 02:01:13,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1067 [2025-03-08 02:01:13,156 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:13,157 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2025-03-08 02:01:13,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-08 02:01:13,157 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:13,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:13,157 INFO L85 PathProgramCache]: Analyzing trace with hash -43796591, now seen corresponding path program 1 times [2025-03-08 02:01:13,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:13,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497419194] [2025-03-08 02:01:13,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:13,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:13,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1066 statements into 1 equivalence classes. [2025-03-08 02:01:13,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1066 of 1066 statements. [2025-03-08 02:01:13,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:13,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:13,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1631 backedges. 143 proven. 757 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2025-03-08 02:01:13,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:13,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497419194] [2025-03-08 02:01:13,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497419194] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 02:01:13,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947543204] [2025-03-08 02:01:13,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:13,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:01:13,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:01:13,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 02:01:13,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 02:01:13,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1066 statements into 1 equivalence classes. [2025-03-08 02:01:14,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1066 of 1066 statements. [2025-03-08 02:01:14,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:14,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:14,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 02:01:14,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 02:01:18,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1631 backedges. 143 proven. 757 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2025-03-08 02:01:18,130 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 02:01:19,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1631 backedges. 143 proven. 757 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2025-03-08 02:01:19,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947543204] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 02:01:19,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 02:01:19,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-08 02:01:19,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022770071] [2025-03-08 02:01:19,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 02:01:19,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 02:01:19,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:19,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 02:01:19,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2025-03-08 02:01:19,063 INFO L87 Difference]: Start difference. First operand 9604 states and 9756 transitions. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 9 states have internal predecessors, (1462), 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) [2025-03-08 02:01:22,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:22,327 INFO L93 Difference]: Finished difference Result 18601 states and 18906 transitions. [2025-03-08 02:01:22,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 02:01:22,327 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 9 states have internal predecessors, (1462), 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 1066 [2025-03-08 02:01:22,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:22,344 INFO L225 Difference]: With dead ends: 18601 [2025-03-08 02:01:22,344 INFO L226 Difference]: Without dead ends: 18599 [2025-03-08 02:01:22,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2134 GetRequests, 2126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2025-03-08 02:01:22,349 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 1085 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 3859 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 4012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 3859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:22,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 135 Invalid, 4012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 3859 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-03-08 02:01:22,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18599 states. [2025-03-08 02:01:22,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18599 to 9305. [2025-03-08 02:01:22,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9305 states, 9304 states have (on average 1.015799656061909) internal successors, (9451), 9304 states have internal predecessors, (9451), 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) [2025-03-08 02:01:22,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9305 states to 9305 states and 9451 transitions. [2025-03-08 02:01:22,454 INFO L78 Accepts]: Start accepts. Automaton has 9305 states and 9451 transitions. Word has length 1066 [2025-03-08 02:01:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:22,455 INFO L471 AbstractCegarLoop]: Abstraction has 9305 states and 9451 transitions. [2025-03-08 02:01:22,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 9 states have internal predecessors, (1462), 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) [2025-03-08 02:01:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 9305 states and 9451 transitions. [2025-03-08 02:01:22,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1111 [2025-03-08 02:01:22,466 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:22,466 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-08 02:01:22,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 02:01:22,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:01:22,667 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:22,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:22,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2020110710, now seen corresponding path program 1 times [2025-03-08 02:01:22,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:22,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049798082] [2025-03-08 02:01:22,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:22,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:22,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1110 statements into 1 equivalence classes. [2025-03-08 02:01:22,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1110 of 1110 statements. [2025-03-08 02:01:22,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:22,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1794 backedges. 1107 proven. 188 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2025-03-08 02:01:23,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:23,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049798082] [2025-03-08 02:01:23,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049798082] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 02:01:23,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385621231] [2025-03-08 02:01:23,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:23,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:01:23,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:01:23,806 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 02:01:23,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 02:01:23,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1110 statements into 1 equivalence classes. [2025-03-08 02:01:24,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1110 of 1110 statements. [2025-03-08 02:01:24,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:24,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:24,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 1275 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 02:01:24,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 02:01:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1794 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 1615 trivial. 0 not checked. [2025-03-08 02:01:24,125 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 02:01:24,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385621231] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:01:24,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 02:01:24,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-03-08 02:01:24,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704639934] [2025-03-08 02:01:24,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:01:24,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:01:24,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:24,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:01:24,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 02:01:24,127 INFO L87 Difference]: Start difference. First operand 9305 states and 9451 transitions. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2025-03-08 02:01:24,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:24,680 INFO L93 Difference]: Finished difference Result 20404 states and 20727 transitions. [2025-03-08 02:01:24,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:01:24,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 1110 [2025-03-08 02:01:24,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:24,682 INFO L225 Difference]: With dead ends: 20404 [2025-03-08 02:01:24,682 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 02:01:24,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1113 GetRequests, 1109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 02:01:24,688 INFO L435 NwaCegarLoop]: 348 mSDtfsCounter, 287 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:24,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 358 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 02:01:24,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 02:01:24,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 02:01:24,689 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) [2025-03-08 02:01:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 02:01:24,689 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1110 [2025-03-08 02:01:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:24,689 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 02:01:24,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2025-03-08 02:01:24,689 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 02:01:24,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 02:01:24,693 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 02:01:24,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-08 02:01:24,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-08 02:01:24,896 INFO L422 BasicCegarLoop]: Path program 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] [2025-03-08 02:01:24,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 02:01:29,066 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 02:01:29,079 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-03-08 02:01:29,090 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-03-08 02:01:29,091 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-03-08 02:01:29,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 02:01:29 BoogieIcfgContainer [2025-03-08 02:01:29,098 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 02:01:29,099 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 02:01:29,099 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 02:01:29,099 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 02:01:29,100 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:00:31" (3/4) ... [2025-03-08 02:01:29,101 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 02:01:29,128 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-08 02:01:29,129 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-08 02:01:29,131 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 02:01:29,132 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 02:01:29,270 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 02:01:29,271 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 02:01:29,271 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 02:01:29,272 INFO L158 Benchmark]: Toolchain (without parser) took 61195.17ms. Allocated memory was 142.6MB in the beginning and 1.1GB in the end (delta: 998.2MB). Free memory was 101.8MB in the beginning and 475.5MB in the end (delta: -373.7MB). Peak memory consumption was 628.3MB. Max. memory is 16.1GB. [2025-03-08 02:01:29,272 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:01:29,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 668.20ms. Allocated memory is still 142.6MB. Free memory was 101.8MB in the beginning and 88.8MB in the end (delta: 13.0MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. [2025-03-08 02:01:29,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 152.22ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 51.9MB in the end (delta: 37.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-08 02:01:29,272 INFO L158 Benchmark]: Boogie Preprocessor took 245.88ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 51.9MB in the beginning and 58.3MB in the end (delta: -6.5MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2025-03-08 02:01:29,273 INFO L158 Benchmark]: IcfgBuilder took 2213.22ms. Allocated memory was 151.0MB in the beginning and 352.3MB in the end (delta: 201.3MB). Free memory was 57.6MB in the beginning and 222.1MB in the end (delta: -164.5MB). Peak memory consumption was 190.1MB. Max. memory is 16.1GB. [2025-03-08 02:01:29,273 INFO L158 Benchmark]: TraceAbstraction took 57737.97ms. Allocated memory was 352.3MB in the beginning and 1.1GB in the end (delta: 788.5MB). Free memory was 220.9MB in the beginning and 500.6MB in the end (delta: -279.7MB). Peak memory consumption was 692.2MB. Max. memory is 16.1GB. [2025-03-08 02:01:29,273 INFO L158 Benchmark]: Witness Printer took 172.36ms. Allocated memory is still 1.1GB. Free memory was 500.6MB in the beginning and 475.5MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 02:01:29,275 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 668.20ms. Allocated memory is still 142.6MB. Free memory was 101.8MB in the beginning and 88.8MB in the end (delta: 13.0MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 152.22ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 51.9MB in the end (delta: 37.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 245.88ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 51.9MB in the beginning and 58.3MB in the end (delta: -6.5MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * IcfgBuilder took 2213.22ms. Allocated memory was 151.0MB in the beginning and 352.3MB in the end (delta: 201.3MB). Free memory was 57.6MB in the beginning and 222.1MB in the end (delta: -164.5MB). Peak memory consumption was 190.1MB. Max. memory is 16.1GB. * TraceAbstraction took 57737.97ms. Allocated memory was 352.3MB in the beginning and 1.1GB in the end (delta: 788.5MB). Free memory was 220.9MB in the beginning and 500.6MB in the end (delta: -279.7MB). Peak memory consumption was 692.2MB. Max. memory is 16.1GB. * Witness Printer took 172.36ms. Allocated memory is still 1.1GB. Free memory was 500.6MB in the beginning and 475.5MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 131]: 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, 424 locations, 749 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.5s, OverallIterations: 26, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 31.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10780 SdHoareTripleChecker+Valid, 29.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10780 mSDsluCounter, 9146 SdHoareTripleChecker+Invalid, 24.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1131 mSDsCounter, 4373 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32777 IncrementalHoareTripleChecker+Invalid, 37150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4373 mSolverCounterUnsat, 8015 mSDtfsCounter, 32777 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5938 GetRequests, 5881 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21932occurred in iteration=18, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 26 MinimizatonAttempts, 32129 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 14.9s InterpolantComputationTime, 18773 NumberOfCodeBlocks, 18773 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 20399 ConstructedInterpolants, 304 QuantifiedInterpolants, 71174 SizeOfPredicates, 6 NumberOfNonLiveVariables, 4942 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 33 InterpolantComputations, 24 PerfectInterpolantSequences, 22697/25853 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: 1776]: Location Invariant Derived location invariant: (((((((((((((((((((((((((((((((((((((long long) 42 + a4) <= 0) && (44 <= a29)) && (((long long) a0 + 147) <= 0)) && (a2 == 1)) || (((2 == a2) && (((long long) 89 + a4) <= 0)) && (0 <= ((long long) a0 + 60)))) || (((((long long) 42 + a4) <= 0) && (((long long) 98 + a0) <= 0)) && (3 == a2))) || ((((((a2 == 1) && (((long long) a0 + 61) <= 0)) || ((0 <= ((long long) a4 + 85)) && (a2 == 1))) && (0 <= ((long long) 97 + a0))) && (((long long) 42 + a4) <= 0)) && (((long long) a29 + 18) <= 0))) || ((((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (((long long) a0 + 147) <= 0)) && (((long long) a29 + 18) <= 0)) && (5 <= a2)) && (0 <= ((long long) 600214 + a0)))) || (((((((a29 <= 41) && (0 <= ((long long) a29 + 14))) && (((long long) 42 + a4) <= 0)) && (2 == a2)) && (0 <= ((long long) a4 + 85))) && (((long long) 98 + a0) <= 0)) && (0 <= (4831 + ((((long long) 9 * a0) >= 0) ? (((long long) 9 * a0) / 10) : ((((long long) 9 * a0) / 10) - 1)))))) || (((2 != a2) && (((long long) 89 + a4) <= 0)) && (((long long) a0 + 61) <= 0))) || ((((2 == a2) && (44 <= a29)) && (((long long) 98 + a0) <= 0)) && (0 <= (4831 + ((((long long) 9 * a0) >= 0) ? (((long long) 9 * a0) / 10) : ((((long long) 9 * a0) / 10) - 1)))))) || ((((2 == a2) && (44 <= a29)) && (((long long) a0 + 147) <= 0)) && (0 <= ((long long) 600214 + a0)))) || (((((((long long) 42 + a4) <= 0) && (44 <= a29)) && (((long long) a0 + 147) <= 0)) && (5 <= a2)) && (0 <= ((long long) 600214 + a0)))) || ((((((long long) 42 + a4) <= 0) && (((long long) a0 + 147) <= 0)) && (a2 == 4)) && (((long long) a29 + 127) <= 0))) || (((44 <= a29) && (((long long) 89 + a4) <= 0)) && (3 == a2))) || (((0 <= ((long long) 97 + a0)) && (((long long) 89 + a4) <= 0)) && (((long long) a0 + 61) <= 0))) || ((((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (0 <= ((long long) a29 + 15))) && (((long long) a0 + 147) <= 0)) && (5 <= a2)) && (0 <= ((long long) 600214 + a0)))) || ((((a29 <= 41) && (0 <= ((long long) a29 + 15))) && (((long long) 89 + a4) <= 0)) && (5 <= a2))) || ((((((long long) 42 + a4) <= 0) && (((long long) a0 + 147) <= 0)) && (0 <= ((long long) 600214 + a0))) && (a2 == 4))) || (((a29 <= 41) && (((long long) 89 + a4) <= 0)) && (3 == a2))) || (((((((long long) 42 + a4) <= 0) && (2 == a2)) && (0 <= ((long long) a4 + 85))) && (((long long) a0 + 147) <= 0)) && (0 <= ((long long) 600214 + a0)))) || (((((0 <= ((long long) a29 + 14)) && (((long long) 42 + a4) <= 0)) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0))) && (5 <= a2))) || (((((long long) 89 + a4) <= 0) && (((long long) a29 + 18) <= 0)) && (a2 == 4))) || (((a2 == 1) && (((long long) a4 + 86) <= 0)) && (((long long) a29 + 144) <= 0))) || (((0 <= ((long long) a29 + 15)) && (((long long) 89 + a4) <= 0)) && (((long long) 98 + a0) <= 0))) || ((((long long) 89 + a4) <= 0) && (((long long) a0 + 147) <= 0))) || (((2 == a2) && (((long long) 89 + a4) <= 0)) && (((long long) a29 + 401505) <= 0))) || (((((a29 <= 41) && (((a2 == 1) && (((long long) a0 + 61) <= 0)) || ((0 <= ((long long) a4 + 85)) && (a2 == 1)))) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a29 + 15))) && (0 <= ((long long) 600214 + a0)))) || ((((((long long) 42 + a4) <= 0) && (((long long) a0 + 147) <= 0)) && (((long long) a29 + 18) <= 0)) && (a2 == 1))) || ((((((long long) 89 + a4) <= 0) && (a2 == 1)) && (0 <= ((long long) 44 + a0))) && (((long long) a29 + 127) == 0))) || ((((((long long) 42 + a4) <= 0) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0))) && (a2 == 1))) || (((((((long long) 42 + a4) <= 0) && (((long long) 98 + a0) <= 0)) && (((long long) a29 + 18) <= 0)) && (0 <= ((long long) 146 + a0))) && (5 <= a2))) || (((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (44 <= a29)) && (((long long) 98 + a0) <= 0)) && (a2 == 4))) || ((((44 <= a29) && (((long long) 89 + a4) <= 0)) && (0 <= ((long long) a0 + 60))) && (5 <= a2))) || (((0 <= ((long long) a29 + 14)) && (((long long) 89 + a4) <= 0)) && (a2 == 4))) RESULT: Ultimate proved your program to be correct! [2025-03-08 02:01:29,294 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