./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label53.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem16_label53.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 f141a301b31229dd66a7cd564eee9643a79b3eee13542a71eb8c2449d9b4afb4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 10:56:52,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 10:56:52,158 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 10:56:52,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 10:56:52,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 10:56:52,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 10:56:52,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 10:56:52,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 10:56:52,177 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 10:56:52,177 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 10:56:52,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 10:56:52,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 10:56:52,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 10:56:52,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 10:56:52,178 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 10:56:52,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 10:56:52,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 10:56:52,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 10:56:52,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 10:56:52,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 10:56:52,179 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 10:56:52,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 10:56:52,179 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 10:56:52,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 10:56:52,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 10:56:52,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 10:56:52,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 10:56:52,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 10:56:52,180 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 -> f141a301b31229dd66a7cd564eee9643a79b3eee13542a71eb8c2449d9b4afb4 [2025-03-03 10:56:52,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 10:56:52,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 10:56:52,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 10:56:52,439 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 10:56:52,439 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 10:56:52,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label53.c [2025-03-03 10:56:53,549 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02cfaf551/ef7eeffa42b945ceb32767f8899297bc/FLAGbc9f617b3 [2025-03-03 10:56:53,948 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 10:56:53,948 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label53.c [2025-03-03 10:56:53,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02cfaf551/ef7eeffa42b945ceb32767f8899297bc/FLAGbc9f617b3 [2025-03-03 10:56:54,122 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02cfaf551/ef7eeffa42b945ceb32767f8899297bc [2025-03-03 10:56:54,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 10:56:54,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 10:56:54,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 10:56:54,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 10:56:54,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 10:56:54,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51738cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54, skipping insertion in model container [2025-03-03 10:56:54,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 10:56:54,292 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/Problem16_label53.c[4014,4027] [2025-03-03 10:56:54,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 10:56:54,478 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 10:56:54,493 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/Problem16_label53.c[4014,4027] [2025-03-03 10:56:54,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 10:56:54,623 INFO L204 MainTranslator]: Completed translation [2025-03-03 10:56:54,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54 WrapperNode [2025-03-03 10:56:54,624 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 10:56:54,625 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 10:56:54,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 10:56:54,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 10:56:54,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,660 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,756 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1767 [2025-03-03 10:56:54,756 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 10:56:54,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 10:56:54,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 10:56:54,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 10:56:54,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,784 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,862 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]. [2025-03-03 10:56:54,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,907 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 10:56:54,943 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 10:56:54,944 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 10:56:54,944 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 10:56:54,945 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (1/1) ... [2025-03-03 10:56:54,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 10:56:54,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:56:54,970 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) [2025-03-03 10:56:54,974 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 [2025-03-03 10:56:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 10:56:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 10:56:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 10:56:54,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 10:56:55,041 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 10:56:55,042 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 10:56:56,633 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1501: havoc calculate_output_#t~ret7#1; [2025-03-03 10:56:56,703 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2025-03-03 10:56:56,703 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 10:56:56,722 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 10:56:56,725 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 10:56:56,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:56:56 BoogieIcfgContainer [2025-03-03 10:56:56,726 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 10:56:56,727 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 10:56:56,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 10:56:56,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 10:56:56,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 10:56:54" (1/3) ... [2025-03-03 10:56:56,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c179f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:56:56, skipping insertion in model container [2025-03-03 10:56:56,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:56:54" (2/3) ... [2025-03-03 10:56:56,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c179f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:56:56, skipping insertion in model container [2025-03-03 10:56:56,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:56:56" (3/3) ... [2025-03-03 10:56:56,733 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem16_label53.c [2025-03-03 10:56:56,745 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 10:56:56,746 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem16_label53.c that has 1 procedures, 396 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 10:56:56,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 10:56:56,810 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;@4e7d9888, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 10:56:56,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 10:56:56,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.83248730964467) internal successors, (722), 395 states have internal predecessors, (722), 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) [2025-03-03 10:56:56,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-03 10:56:56,819 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:56:56,819 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] [2025-03-03 10:56:56,820 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:56:56,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:56:56,823 INFO L85 PathProgramCache]: Analyzing trace with hash 499132300, now seen corresponding path program 1 times [2025-03-03 10:56:56,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:56:56,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157569331] [2025-03-03 10:56:56,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:56:56,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:56:56,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-03 10:56:56,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-03 10:56:56,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:56:56,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:56:57,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:56:57,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:56:57,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157569331] [2025-03-03 10:56:57,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157569331] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:56:57,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:56:57,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:56:57,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796925562] [2025-03-03 10:56:57,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:56:57,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:56:57,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:56:57,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:56:57,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:56:57,111 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.83248730964467) internal successors, (722), 395 states have internal predecessors, (722), 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 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 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) [2025-03-03 10:56:58,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:56:58,555 INFO L93 Difference]: Finished difference Result 1137 states and 2115 transitions. [2025-03-03 10:56:58,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:56:58,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 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 37 [2025-03-03 10:56:58,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:56:58,568 INFO L225 Difference]: With dead ends: 1137 [2025-03-03 10:56:58,568 INFO L226 Difference]: Without dead ends: 662 [2025-03-03 10:56:58,571 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 [2025-03-03 10:56:58,573 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 347 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-03 10:56:58,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 114 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-03 10:56:58,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2025-03-03 10:56:58,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2025-03-03 10:56:58,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.7004538577912254) internal successors, (1124), 661 states have internal predecessors, (1124), 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) [2025-03-03 10:56:58,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1124 transitions. [2025-03-03 10:56:58,629 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1124 transitions. Word has length 37 [2025-03-03 10:56:58,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:56:58,630 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1124 transitions. [2025-03-03 10:56:58,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 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) [2025-03-03 10:56:58,630 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1124 transitions. [2025-03-03 10:56:58,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-03 10:56:58,632 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:56:58,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:56:58,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 10:56:58,633 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:56:58,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:56:58,633 INFO L85 PathProgramCache]: Analyzing trace with hash 659477210, now seen corresponding path program 1 times [2025-03-03 10:56:58,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:56:58,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652041442] [2025-03-03 10:56:58,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:56:58,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:56:58,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-03 10:56:58,675 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-03 10:56:58,675 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:56:58,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:56:58,815 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:56:58,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:56:58,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652041442] [2025-03-03 10:56:58,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652041442] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:56:58,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:56:58,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:56:58,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693789036] [2025-03-03 10:56:58,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:56:58,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:56:58,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:56:58,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:56:58,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:56:58,818 INFO L87 Difference]: Start difference. First operand 662 states and 1124 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) [2025-03-03 10:56:59,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:56:59,788 INFO L93 Difference]: Finished difference Result 1980 states and 3367 transitions. [2025-03-03 10:56:59,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:56:59,788 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 [2025-03-03 10:56:59,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:56:59,792 INFO L225 Difference]: With dead ends: 1980 [2025-03-03 10:56:59,792 INFO L226 Difference]: Without dead ends: 1320 [2025-03-03 10:56:59,793 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 [2025-03-03 10:56:59,794 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 293 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-03 10:56:59,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 218 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-03 10:56:59,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2025-03-03 10:56:59,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2025-03-03 10:56:59,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.4556482183472328) internal successors, (1920), 1319 states have internal predecessors, (1920), 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) [2025-03-03 10:56:59,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1920 transitions. [2025-03-03 10:56:59,826 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1920 transitions. Word has length 103 [2025-03-03 10:56:59,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:56:59,826 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 1920 transitions. [2025-03-03 10:56:59,826 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) [2025-03-03 10:56:59,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1920 transitions. [2025-03-03 10:56:59,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-03 10:56:59,828 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:56:59,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:56:59,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 10:56:59,828 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:56:59,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:56:59,829 INFO L85 PathProgramCache]: Analyzing trace with hash 497532957, now seen corresponding path program 1 times [2025-03-03 10:56:59,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:56:59,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314516080] [2025-03-03 10:56:59,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:56:59,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:56:59,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-03 10:56:59,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-03 10:56:59,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:56:59,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:00,070 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:57:00,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:00,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314516080] [2025-03-03 10:57:00,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314516080] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:00,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:00,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:57:00,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549879368] [2025-03-03 10:57:00,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:00,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 10:57:00,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:00,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 10:57:00,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:57:00,072 INFO L87 Difference]: Start difference. First operand 1320 states and 1920 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 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) [2025-03-03 10:57:01,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:01,679 INFO L93 Difference]: Finished difference Result 4283 states and 6144 transitions. [2025-03-03 10:57:01,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 10:57:01,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 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 116 [2025-03-03 10:57:01,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:01,688 INFO L225 Difference]: With dead ends: 4283 [2025-03-03 10:57:01,689 INFO L226 Difference]: Without dead ends: 2965 [2025-03-03 10:57:01,691 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 [2025-03-03 10:57:01,691 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 886 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:01,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 150 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-03 10:57:01,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2025-03-03 10:57:01,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 2965. [2025-03-03 10:57:01,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2964 states have (on average 1.3670715249662617) internal successors, (4052), 2964 states have internal predecessors, (4052), 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) [2025-03-03 10:57:01,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 4052 transitions. [2025-03-03 10:57:01,742 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 4052 transitions. Word has length 116 [2025-03-03 10:57:01,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:01,742 INFO L471 AbstractCegarLoop]: Abstraction has 2965 states and 4052 transitions. [2025-03-03 10:57:01,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 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) [2025-03-03 10:57:01,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 4052 transitions. [2025-03-03 10:57:01,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-03-03 10:57:01,748 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:01,748 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 10:57:01,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 10:57:01,749 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:01,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:01,751 INFO L85 PathProgramCache]: Analyzing trace with hash -232852392, now seen corresponding path program 1 times [2025-03-03 10:57:01,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:01,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718649818] [2025-03-03 10:57:01,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:01,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:01,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-03-03 10:57:01,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-03-03 10:57:01,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:01,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:01,998 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-03-03 10:57:01,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:01,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718649818] [2025-03-03 10:57:01,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718649818] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:01,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:01,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:57:01,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908888102] [2025-03-03 10:57:01,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:02,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:57:02,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:02,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:57:02,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:57:02,001 INFO L87 Difference]: Start difference. First operand 2965 states and 4052 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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) [2025-03-03 10:57:03,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:03,021 INFO L93 Difference]: Finished difference Result 8231 states and 11469 transitions. [2025-03-03 10:57:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:57:03,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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 203 [2025-03-03 10:57:03,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:03,039 INFO L225 Difference]: With dead ends: 8231 [2025-03-03 10:57:03,040 INFO L226 Difference]: Without dead ends: 5597 [2025-03-03 10:57:03,042 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 [2025-03-03 10:57:03,043 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 359 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:03,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 155 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-03 10:57:03,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states. [2025-03-03 10:57:03,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 4281. [2025-03-03 10:57:03,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4281 states, 4280 states have (on average 1.3133177570093457) internal successors, (5621), 4280 states have internal predecessors, (5621), 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) [2025-03-03 10:57:03,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 5621 transitions. [2025-03-03 10:57:03,110 INFO L78 Accepts]: Start accepts. Automaton has 4281 states and 5621 transitions. Word has length 203 [2025-03-03 10:57:03,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:03,111 INFO L471 AbstractCegarLoop]: Abstraction has 4281 states and 5621 transitions. [2025-03-03 10:57:03,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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) [2025-03-03 10:57:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 4281 states and 5621 transitions. [2025-03-03 10:57:03,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2025-03-03 10:57:03,113 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:03,113 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 10:57:03,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 10:57:03,113 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:03,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:03,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1797543021, now seen corresponding path program 1 times [2025-03-03 10:57:03,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:03,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185156726] [2025-03-03 10:57:03,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:03,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:03,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 234 statements into 1 equivalence classes. [2025-03-03 10:57:03,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 234 of 234 statements. [2025-03-03 10:57:03,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:03,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:03,242 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-03 10:57:03,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:03,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185156726] [2025-03-03 10:57:03,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185156726] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:03,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:03,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:57:03,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843041432] [2025-03-03 10:57:03,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:03,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:57:03,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:03,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:57:03,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:57:03,244 INFO L87 Difference]: Start difference. First operand 4281 states and 5621 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 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) [2025-03-03 10:57:04,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:04,118 INFO L93 Difference]: Finished difference Result 9547 states and 12468 transitions. [2025-03-03 10:57:04,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:57:04,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 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 234 [2025-03-03 10:57:04,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:04,133 INFO L225 Difference]: With dead ends: 9547 [2025-03-03 10:57:04,133 INFO L226 Difference]: Without dead ends: 5597 [2025-03-03 10:57:04,138 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 [2025-03-03 10:57:04,140 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 277 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:04,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 84 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-03 10:57:04,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states. [2025-03-03 10:57:04,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5597. [2025-03-03 10:57:04,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5596 states have (on average 1.2162258756254467) internal successors, (6806), 5596 states have internal predecessors, (6806), 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) [2025-03-03 10:57:04,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 6806 transitions. [2025-03-03 10:57:04,262 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 6806 transitions. Word has length 234 [2025-03-03 10:57:04,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:04,263 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 6806 transitions. [2025-03-03 10:57:04,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 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) [2025-03-03 10:57:04,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 6806 transitions. [2025-03-03 10:57:04,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2025-03-03 10:57:04,269 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:04,270 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 10:57:04,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 10:57:04,270 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:04,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:04,271 INFO L85 PathProgramCache]: Analyzing trace with hash -445032681, now seen corresponding path program 1 times [2025-03-03 10:57:04,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:04,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210615450] [2025-03-03 10:57:04,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:04,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:04,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 369 statements into 1 equivalence classes. [2025-03-03 10:57:04,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 369 of 369 statements. [2025-03-03 10:57:04,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:04,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:57:04,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:04,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210615450] [2025-03-03 10:57:04,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210615450] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:04,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:04,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 10:57:04,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542727146] [2025-03-03 10:57:04,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:04,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 10:57:04,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:04,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 10:57:04,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-03 10:57:04,834 INFO L87 Difference]: Start difference. First operand 5597 states and 6806 transitions. Second operand has 7 states, 7 states have (on average 52.714285714285715) internal successors, (369), 6 states have internal predecessors, (369), 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) [2025-03-03 10:57:06,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:06,100 INFO L93 Difference]: Finished difference Result 10722 states and 13122 transitions. [2025-03-03 10:57:06,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-03 10:57:06,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.714285714285715) internal successors, (369), 6 states have internal predecessors, (369), 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 369 [2025-03-03 10:57:06,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:06,113 INFO L225 Difference]: With dead ends: 10722 [2025-03-03 10:57:06,113 INFO L226 Difference]: Without dead ends: 5268 [2025-03-03 10:57:06,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-03 10:57:06,120 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 308 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 2221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:06,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 291 Invalid, 2221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1870 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-03 10:57:06,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2025-03-03 10:57:06,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 5268. [2025-03-03 10:57:06,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 5267 states have (on average 1.0924625023732675) internal successors, (5754), 5267 states have internal predecessors, (5754), 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) [2025-03-03 10:57:06,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 5754 transitions. [2025-03-03 10:57:06,181 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 5754 transitions. Word has length 369 [2025-03-03 10:57:06,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:06,181 INFO L471 AbstractCegarLoop]: Abstraction has 5268 states and 5754 transitions. [2025-03-03 10:57:06,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.714285714285715) internal successors, (369), 6 states have internal predecessors, (369), 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) [2025-03-03 10:57:06,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 5754 transitions. [2025-03-03 10:57:06,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2025-03-03 10:57:06,186 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:06,186 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 10:57:06,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 10:57:06,187 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:06,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:06,187 INFO L85 PathProgramCache]: Analyzing trace with hash 883600336, now seen corresponding path program 1 times [2025-03-03 10:57:06,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:06,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508775458] [2025-03-03 10:57:06,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:06,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:06,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 376 statements into 1 equivalence classes. [2025-03-03 10:57:06,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 376 of 376 statements. [2025-03-03 10:57:06,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:06,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:06,608 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-03 10:57:06,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:06,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508775458] [2025-03-03 10:57:06,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508775458] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 10:57:06,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893419582] [2025-03-03 10:57:06,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:06,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:57:06,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:57:06,611 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) [2025-03-03 10:57:06,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 10:57:06,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 376 statements into 1 equivalence classes. [2025-03-03 10:57:06,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 376 of 376 statements. [2025-03-03 10:57:06,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:06,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:06,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 10:57:06,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 10:57:07,148 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-03-03 10:57:07,149 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 10:57:07,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893419582] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:07,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 10:57:07,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2025-03-03 10:57:07,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917463210] [2025-03-03 10:57:07,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:07,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:57:07,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:07,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:57:07,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 10:57:07,151 INFO L87 Difference]: Start difference. First operand 5268 states and 5754 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:57:07,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:07,824 INFO L93 Difference]: Finished difference Result 6257 states and 6773 transitions. [2025-03-03 10:57:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:57:07,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 376 [2025-03-03 10:57:07,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:07,839 INFO L225 Difference]: With dead ends: 6257 [2025-03-03 10:57:07,839 INFO L226 Difference]: Without dead ends: 6255 [2025-03-03 10:57:07,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 10:57:07,841 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 108 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:07,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 83 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 10:57:07,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6255 states. [2025-03-03 10:57:07,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6255 to 5597. [2025-03-03 10:57:07,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5596 states have (on average 1.089349535382416) internal successors, (6096), 5596 states have internal predecessors, (6096), 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) [2025-03-03 10:57:07,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 6096 transitions. [2025-03-03 10:57:07,916 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 6096 transitions. Word has length 376 [2025-03-03 10:57:07,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:07,916 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 6096 transitions. [2025-03-03 10:57:07,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 10:57:07,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 6096 transitions. [2025-03-03 10:57:07,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2025-03-03 10:57:07,923 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:07,924 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2025-03-03 10:57:07,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 10:57:08,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:57:08,125 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:08,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:08,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1969219093, now seen corresponding path program 1 times [2025-03-03 10:57:08,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:08,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416891174] [2025-03-03 10:57:08,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:08,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:08,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 575 statements into 1 equivalence classes. [2025-03-03 10:57:08,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 575 of 575 statements. [2025-03-03 10:57:08,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:08,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 525 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2025-03-03 10:57:08,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:08,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416891174] [2025-03-03 10:57:08,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416891174] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:08,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:08,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:57:08,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083771468] [2025-03-03 10:57:08,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:08,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:57:08,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:08,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:57:08,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:57:08,549 INFO L87 Difference]: Start difference. First operand 5597 states and 6096 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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) [2025-03-03 10:57:09,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:09,275 INFO L93 Difference]: Finished difference Result 13824 states and 15194 transitions. [2025-03-03 10:57:09,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:57:09,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 575 [2025-03-03 10:57:09,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:09,292 INFO L225 Difference]: With dead ends: 13824 [2025-03-03 10:57:09,292 INFO L226 Difference]: Without dead ends: 8558 [2025-03-03 10:57:09,297 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 [2025-03-03 10:57:09,298 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 219 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:09,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 434 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-03 10:57:09,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2025-03-03 10:57:09,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 8229. [2025-03-03 10:57:09,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8229 states, 8228 states have (on average 1.0675741370928538) internal successors, (8784), 8228 states have internal predecessors, (8784), 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) [2025-03-03 10:57:09,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8229 states to 8229 states and 8784 transitions. [2025-03-03 10:57:09,379 INFO L78 Accepts]: Start accepts. Automaton has 8229 states and 8784 transitions. Word has length 575 [2025-03-03 10:57:09,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:09,379 INFO L471 AbstractCegarLoop]: Abstraction has 8229 states and 8784 transitions. [2025-03-03 10:57:09,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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) [2025-03-03 10:57:09,379 INFO L276 IsEmpty]: Start isEmpty. Operand 8229 states and 8784 transitions. [2025-03-03 10:57:09,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2025-03-03 10:57:09,407 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:09,407 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2025-03-03 10:57:09,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 10:57:09,408 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:09,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:09,408 INFO L85 PathProgramCache]: Analyzing trace with hash 84553196, now seen corresponding path program 1 times [2025-03-03 10:57:09,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:09,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292909469] [2025-03-03 10:57:09,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:09,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:09,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 679 statements into 1 equivalence classes. [2025-03-03 10:57:09,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 679 of 679 statements. [2025-03-03 10:57:09,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:09,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:09,721 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 721 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2025-03-03 10:57:09,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:09,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292909469] [2025-03-03 10:57:09,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292909469] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:09,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:09,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:57:09,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779878650] [2025-03-03 10:57:09,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:09,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:57:09,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:09,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:57:09,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:57:09,724 INFO L87 Difference]: Start difference. First operand 8229 states and 8784 transitions. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2025-03-03 10:57:10,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:10,393 INFO L93 Difference]: Finished difference Result 18759 states and 20216 transitions. [2025-03-03 10:57:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:57:10,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 679 [2025-03-03 10:57:10,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:10,408 INFO L225 Difference]: With dead ends: 18759 [2025-03-03 10:57:10,408 INFO L226 Difference]: Without dead ends: 10861 [2025-03-03 10:57:10,415 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 [2025-03-03 10:57:10,416 INFO L435 NwaCegarLoop]: 414 mSDtfsCounter, 176 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:10,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 420 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 10:57:10,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2025-03-03 10:57:10,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10532. [2025-03-03 10:57:10,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10532 states, 10531 states have (on average 1.0627670686544488) internal successors, (11192), 10531 states have internal predecessors, (11192), 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) [2025-03-03 10:57:10,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10532 states to 10532 states and 11192 transitions. [2025-03-03 10:57:10,504 INFO L78 Accepts]: Start accepts. Automaton has 10532 states and 11192 transitions. Word has length 679 [2025-03-03 10:57:10,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:10,505 INFO L471 AbstractCegarLoop]: Abstraction has 10532 states and 11192 transitions. [2025-03-03 10:57:10,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2025-03-03 10:57:10,505 INFO L276 IsEmpty]: Start isEmpty. Operand 10532 states and 11192 transitions. [2025-03-03 10:57:10,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2025-03-03 10:57:10,522 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:10,523 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 10:57:10,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 10:57:10,523 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:10,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:10,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1160721122, now seen corresponding path program 1 times [2025-03-03 10:57:10,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:10,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206800685] [2025-03-03 10:57:10,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:10,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:10,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 910 statements into 1 equivalence classes. [2025-03-03 10:57:10,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 910 of 910 statements. [2025-03-03 10:57:10,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:10,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 717 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2025-03-03 10:57:11,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:11,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206800685] [2025-03-03 10:57:11,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206800685] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:11,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:11,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:57:11,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788914449] [2025-03-03 10:57:11,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:11,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:57:11,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:11,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:57:11,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:57:11,036 INFO L87 Difference]: Start difference. First operand 10532 states and 11192 transitions. Second operand has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 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) [2025-03-03 10:57:11,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:11,670 INFO L93 Difference]: Finished difference Result 22378 states and 23735 transitions. [2025-03-03 10:57:11,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:57:11,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 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 910 [2025-03-03 10:57:11,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:11,682 INFO L225 Difference]: With dead ends: 22378 [2025-03-03 10:57:11,683 INFO L226 Difference]: Without dead ends: 10532 [2025-03-03 10:57:11,691 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 [2025-03-03 10:57:11,691 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 143 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:11,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 430 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 10:57:11,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10532 states. [2025-03-03 10:57:11,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10532 to 10203. [2025-03-03 10:57:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10203 states, 10202 states have (on average 1.0413644383454224) internal successors, (10624), 10202 states have internal predecessors, (10624), 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) [2025-03-03 10:57:11,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10203 states to 10203 states and 10624 transitions. [2025-03-03 10:57:11,811 INFO L78 Accepts]: Start accepts. Automaton has 10203 states and 10624 transitions. Word has length 910 [2025-03-03 10:57:11,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:11,812 INFO L471 AbstractCegarLoop]: Abstraction has 10203 states and 10624 transitions. [2025-03-03 10:57:11,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 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) [2025-03-03 10:57:11,812 INFO L276 IsEmpty]: Start isEmpty. Operand 10203 states and 10624 transitions. [2025-03-03 10:57:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1225 [2025-03-03 10:57:11,825 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:11,826 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:57:11,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 10:57:11,826 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:11,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:11,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2001297751, now seen corresponding path program 1 times [2025-03-03 10:57:11,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:11,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599246393] [2025-03-03 10:57:11,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:11,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:11,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1224 statements into 1 equivalence classes. [2025-03-03 10:57:11,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1224 of 1224 statements. [2025-03-03 10:57:11,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:11,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2846 backedges. 1987 proven. 0 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2025-03-03 10:57:12,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:12,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599246393] [2025-03-03 10:57:12,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599246393] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:12,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:12,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:57:12,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55599268] [2025-03-03 10:57:12,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:12,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:57:12,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:12,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:57:12,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:57:12,332 INFO L87 Difference]: Start difference. First operand 10203 states and 10624 transitions. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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) [2025-03-03 10:57:12,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:12,929 INFO L93 Difference]: Finished difference Result 23036 states and 24117 transitions. [2025-03-03 10:57:12,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:57:12,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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 1224 [2025-03-03 10:57:12,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:12,947 INFO L225 Difference]: With dead ends: 23036 [2025-03-03 10:57:12,947 INFO L226 Difference]: Without dead ends: 13164 [2025-03-03 10:57:12,954 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 [2025-03-03 10:57:12,954 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 221 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:12,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 432 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 10:57:12,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2025-03-03 10:57:13,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 12835. [2025-03-03 10:57:13,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 1.0364656381486677) internal successors, (13302), 12834 states have internal predecessors, (13302), 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) [2025-03-03 10:57:13,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 13302 transitions. [2025-03-03 10:57:13,062 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 13302 transitions. Word has length 1224 [2025-03-03 10:57:13,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:13,062 INFO L471 AbstractCegarLoop]: Abstraction has 12835 states and 13302 transitions. [2025-03-03 10:57:13,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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) [2025-03-03 10:57:13,063 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 13302 transitions. [2025-03-03 10:57:13,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1226 [2025-03-03 10:57:13,076 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:13,077 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:57:13,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 10:57:13,077 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:13,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:13,078 INFO L85 PathProgramCache]: Analyzing trace with hash 889942803, now seen corresponding path program 1 times [2025-03-03 10:57:13,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:13,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492058507] [2025-03-03 10:57:13,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:13,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:13,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1225 statements into 1 equivalence classes. [2025-03-03 10:57:13,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1225 of 1225 statements. [2025-03-03 10:57:13,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:13,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:13,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1039 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2025-03-03 10:57:13,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:13,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492058507] [2025-03-03 10:57:13,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492058507] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:13,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:13,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:57:13,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551520088] [2025-03-03 10:57:13,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:13,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:57:13,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:13,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:57:13,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:57:13,741 INFO L87 Difference]: Start difference. First operand 12835 states and 13302 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) [2025-03-03 10:57:14,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:14,344 INFO L93 Difference]: Finished difference Result 27971 states and 28996 transitions. [2025-03-03 10:57:14,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:57:14,344 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 1225 [2025-03-03 10:57:14,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:14,357 INFO L225 Difference]: With dead ends: 27971 [2025-03-03 10:57:14,358 INFO L226 Difference]: Without dead ends: 13493 [2025-03-03 10:57:14,363 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 [2025-03-03 10:57:14,364 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 170 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:14,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 412 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 10:57:14,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13493 states. [2025-03-03 10:57:14,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13493 to 12835. [2025-03-03 10:57:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 1.0296867695184666) internal successors, (13215), 12834 states have internal predecessors, (13215), 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) [2025-03-03 10:57:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 13215 transitions. [2025-03-03 10:57:14,451 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 13215 transitions. Word has length 1225 [2025-03-03 10:57:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:14,452 INFO L471 AbstractCegarLoop]: Abstraction has 12835 states and 13215 transitions. [2025-03-03 10:57:14,452 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) [2025-03-03 10:57:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 13215 transitions. [2025-03-03 10:57:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1342 [2025-03-03 10:57:14,467 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:14,467 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2025-03-03 10:57:14,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 10:57:14,467 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:14,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:14,468 INFO L85 PathProgramCache]: Analyzing trace with hash 395226674, now seen corresponding path program 1 times [2025-03-03 10:57:14,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:14,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134128393] [2025-03-03 10:57:14,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:14,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:14,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1341 statements into 1 equivalence classes. [2025-03-03 10:57:14,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1341 of 1341 statements. [2025-03-03 10:57:14,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:14,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:15,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3073 backedges. 1260 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2025-03-03 10:57:15,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:15,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134128393] [2025-03-03 10:57:15,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134128393] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:15,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:15,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 10:57:15,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088875793] [2025-03-03 10:57:15,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:15,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 10:57:15,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:15,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 10:57:15,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:57:15,703 INFO L87 Difference]: Start difference. First operand 12835 states and 13215 transitions. Second operand has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2025-03-03 10:57:16,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:16,491 INFO L93 Difference]: Finished difference Result 28984 states and 29827 transitions. [2025-03-03 10:57:16,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 10:57:16,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 1341 [2025-03-03 10:57:16,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:16,509 INFO L225 Difference]: With dead ends: 28984 [2025-03-03 10:57:16,509 INFO L226 Difference]: Without dead ends: 16454 [2025-03-03 10:57:16,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:57:16,520 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 49 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:16,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 64 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-03 10:57:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16454 states. [2025-03-03 10:57:16,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16454 to 11519. [2025-03-03 10:57:16,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11519 states, 11518 states have (on average 1.0292585518319153) internal successors, (11855), 11518 states have internal predecessors, (11855), 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) [2025-03-03 10:57:16,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11519 states to 11519 states and 11855 transitions. [2025-03-03 10:57:16,670 INFO L78 Accepts]: Start accepts. Automaton has 11519 states and 11855 transitions. Word has length 1341 [2025-03-03 10:57:16,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:16,672 INFO L471 AbstractCegarLoop]: Abstraction has 11519 states and 11855 transitions. [2025-03-03 10:57:16,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2025-03-03 10:57:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand 11519 states and 11855 transitions. [2025-03-03 10:57:16,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1576 [2025-03-03 10:57:16,703 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:16,703 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2025-03-03 10:57:16,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 10:57:16,704 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:16,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:16,704 INFO L85 PathProgramCache]: Analyzing trace with hash -105391002, now seen corresponding path program 1 times [2025-03-03 10:57:16,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:16,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251389388] [2025-03-03 10:57:16,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:16,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:16,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1575 statements into 1 equivalence classes. [2025-03-03 10:57:16,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1575 of 1575 statements. [2025-03-03 10:57:16,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:16,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4451 backedges. 3102 proven. 0 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2025-03-03 10:57:18,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:18,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251389388] [2025-03-03 10:57:18,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251389388] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:18,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:18,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 10:57:18,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435666392] [2025-03-03 10:57:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:18,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 10:57:18,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:18,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 10:57:18,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:57:18,075 INFO L87 Difference]: Start difference. First operand 11519 states and 11855 transitions. Second operand has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 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) [2025-03-03 10:57:18,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:18,762 INFO L93 Difference]: Finished difference Result 22716 states and 23386 transitions. [2025-03-03 10:57:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 10:57:18,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 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 1575 [2025-03-03 10:57:18,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:18,771 INFO L225 Difference]: With dead ends: 22716 [2025-03-03 10:57:18,771 INFO L226 Difference]: Without dead ends: 11528 [2025-03-03 10:57:18,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 10:57:18,778 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 217 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:18,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 436 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 10:57:18,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11528 states. [2025-03-03 10:57:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11528 to 11519. [2025-03-03 10:57:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11519 states, 11518 states have (on average 1.0290849105747526) internal successors, (11853), 11518 states have internal predecessors, (11853), 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) [2025-03-03 10:57:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11519 states to 11519 states and 11853 transitions. [2025-03-03 10:57:18,852 INFO L78 Accepts]: Start accepts. Automaton has 11519 states and 11853 transitions. Word has length 1575 [2025-03-03 10:57:18,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:18,852 INFO L471 AbstractCegarLoop]: Abstraction has 11519 states and 11853 transitions. [2025-03-03 10:57:18,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 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) [2025-03-03 10:57:18,853 INFO L276 IsEmpty]: Start isEmpty. Operand 11519 states and 11853 transitions. [2025-03-03 10:57:18,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1708 [2025-03-03 10:57:18,870 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:18,870 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:57:18,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 10:57:18,871 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:18,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:18,872 INFO L85 PathProgramCache]: Analyzing trace with hash 719442729, now seen corresponding path program 1 times [2025-03-03 10:57:18,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:18,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111789149] [2025-03-03 10:57:18,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:18,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:18,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1707 statements into 1 equivalence classes. [2025-03-03 10:57:19,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1707 of 1707 statements. [2025-03-03 10:57:19,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:19,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:19,591 INFO L134 CoverageAnalysis]: Checked inductivity of 6102 backedges. 3594 proven. 0 refuted. 0 times theorem prover too weak. 2508 trivial. 0 not checked. [2025-03-03 10:57:19,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:19,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111789149] [2025-03-03 10:57:19,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111789149] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:19,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:19,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:57:19,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279448746] [2025-03-03 10:57:19,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:19,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:57:19,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:19,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:57:19,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:57:19,594 INFO L87 Difference]: Start difference. First operand 11519 states and 11853 transitions. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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) [2025-03-03 10:57:20,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:20,154 INFO L93 Difference]: Finished difference Result 22707 states and 23373 transitions. [2025-03-03 10:57:20,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:57:20,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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 1707 [2025-03-03 10:57:20,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:20,163 INFO L225 Difference]: With dead ends: 22707 [2025-03-03 10:57:20,163 INFO L226 Difference]: Without dead ends: 11519 [2025-03-03 10:57:20,169 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 [2025-03-03 10:57:20,169 INFO L435 NwaCegarLoop]: 410 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:20,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 416 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 10:57:20,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11519 states. [2025-03-03 10:57:20,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11519 to 11190. [2025-03-03 10:57:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11190 states, 11189 states have (on average 1.0203771561354902) internal successors, (11417), 11189 states have internal predecessors, (11417), 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) [2025-03-03 10:57:20,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 11417 transitions. [2025-03-03 10:57:20,274 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 11417 transitions. Word has length 1707 [2025-03-03 10:57:20,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:20,275 INFO L471 AbstractCegarLoop]: Abstraction has 11190 states and 11417 transitions. [2025-03-03 10:57:20,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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) [2025-03-03 10:57:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 11417 transitions. [2025-03-03 10:57:20,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1787 [2025-03-03 10:57:20,329 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:20,330 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:57:20,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-03 10:57:20,330 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:20,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:20,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1266298549, now seen corresponding path program 1 times [2025-03-03 10:57:20,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:20,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809012442] [2025-03-03 10:57:20,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:20,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:20,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1786 statements into 1 equivalence classes. [2025-03-03 10:57:20,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1786 of 1786 statements. [2025-03-03 10:57:20,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:20,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:21,412 INFO L134 CoverageAnalysis]: Checked inductivity of 6345 backedges. 1303 proven. 0 refuted. 0 times theorem prover too weak. 5042 trivial. 0 not checked. [2025-03-03 10:57:21,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:21,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809012442] [2025-03-03 10:57:21,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809012442] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:21,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:21,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:57:21,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267598888] [2025-03-03 10:57:21,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:21,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:57:21,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:21,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:57:21,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:57:21,414 INFO L87 Difference]: Start difference. First operand 11190 states and 11417 transitions. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2025-03-03 10:57:21,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:21,967 INFO L93 Difference]: Finished difference Result 25997 states and 26535 transitions. [2025-03-03 10:57:21,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:57:21,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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 1786 [2025-03-03 10:57:21,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:21,980 INFO L225 Difference]: With dead ends: 25997 [2025-03-03 10:57:21,981 INFO L226 Difference]: Without dead ends: 15138 [2025-03-03 10:57:21,988 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 [2025-03-03 10:57:21,988 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 223 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:21,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 27 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 10:57:21,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15138 states. [2025-03-03 10:57:22,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 12835. [2025-03-03 10:57:22,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 1.0193236714975846) internal successors, (13082), 12834 states have internal predecessors, (13082), 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) [2025-03-03 10:57:22,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 13082 transitions. [2025-03-03 10:57:22,079 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 13082 transitions. Word has length 1786 [2025-03-03 10:57:22,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:22,079 INFO L471 AbstractCegarLoop]: Abstraction has 12835 states and 13082 transitions. [2025-03-03 10:57:22,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2025-03-03 10:57:22,080 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 13082 transitions. [2025-03-03 10:57:22,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1853 [2025-03-03 10:57:22,098 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:22,098 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:57:22,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-03 10:57:22,098 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:22,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:22,099 INFO L85 PathProgramCache]: Analyzing trace with hash 731048208, now seen corresponding path program 1 times [2025-03-03 10:57:22,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:22,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201553478] [2025-03-03 10:57:22,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:22,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:22,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1852 statements into 1 equivalence classes. [2025-03-03 10:57:22,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1852 of 1852 statements. [2025-03-03 10:57:22,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:22,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:23,588 INFO L134 CoverageAnalysis]: Checked inductivity of 6659 backedges. 1303 proven. 0 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2025-03-03 10:57:23,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:23,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201553478] [2025-03-03 10:57:23,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201553478] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:57:23,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:57:23,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 10:57:23,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096418619] [2025-03-03 10:57:23,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:57:23,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 10:57:23,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:23,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 10:57:23,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:57:23,590 INFO L87 Difference]: Start difference. First operand 12835 states and 13082 transitions. Second operand has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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) [2025-03-03 10:57:24,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:24,056 INFO L93 Difference]: Finished difference Result 25362 states and 25854 transitions. [2025-03-03 10:57:24,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 10:57:24,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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 1852 [2025-03-03 10:57:24,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:24,065 INFO L225 Difference]: With dead ends: 25362 [2025-03-03 10:57:24,065 INFO L226 Difference]: Without dead ends: 12835 [2025-03-03 10:57:24,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:57:24,072 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 227 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:24,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 16 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 10:57:24,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12835 states. [2025-03-03 10:57:24,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12835 to 12835. [2025-03-03 10:57:24,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 1.0192457534673522) internal successors, (13081), 12834 states have internal predecessors, (13081), 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) [2025-03-03 10:57:24,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 13081 transitions. [2025-03-03 10:57:24,153 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 13081 transitions. Word has length 1852 [2025-03-03 10:57:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:24,153 INFO L471 AbstractCegarLoop]: Abstraction has 12835 states and 13081 transitions. [2025-03-03 10:57:24,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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) [2025-03-03 10:57:24,154 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 13081 transitions. [2025-03-03 10:57:24,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1881 [2025-03-03 10:57:24,171 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:57:24,172 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 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, 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, 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, 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] [2025-03-03 10:57:24,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-03 10:57:24,172 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:57:24,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:57:24,173 INFO L85 PathProgramCache]: Analyzing trace with hash 818645784, now seen corresponding path program 1 times [2025-03-03 10:57:24,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:57:24,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925394720] [2025-03-03 10:57:24,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:24,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:57:24,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1880 statements into 1 equivalence classes. [2025-03-03 10:57:24,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1880 of 1880 statements. [2025-03-03 10:57:24,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:24,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:26,523 INFO L134 CoverageAnalysis]: Checked inductivity of 5783 backedges. 4323 proven. 377 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2025-03-03 10:57:26,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:57:26,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925394720] [2025-03-03 10:57:26,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925394720] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 10:57:26,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27552154] [2025-03-03 10:57:26,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:57:26,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:57:26,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:57:26,526 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) [2025-03-03 10:57:26,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 10:57:26,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1880 statements into 1 equivalence classes. [2025-03-03 10:57:26,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1880 of 1880 statements. [2025-03-03 10:57:26,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:57:26,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:57:26,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 2143 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-03 10:57:26,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 10:57:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 5783 backedges. 2514 proven. 201 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2025-03-03 10:57:28,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 10:57:31,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5783 backedges. 2514 proven. 201 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2025-03-03 10:57:31,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27552154] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 10:57:31,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 10:57:31,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 12 [2025-03-03 10:57:31,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884595475] [2025-03-03 10:57:31,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 10:57:31,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-03 10:57:31,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:57:31,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-03 10:57:31,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2025-03-03 10:57:31,852 INFO L87 Difference]: Start difference. First operand 12835 states and 13081 transitions. Second operand has 12 states, 12 states have (on average 195.5) internal successors, (2346), 12 states have internal predecessors, (2346), 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) [2025-03-03 10:57:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:57:35,116 INFO L93 Difference]: Finished difference Result 25998 states and 26506 transitions. [2025-03-03 10:57:35,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-03 10:57:35,116 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 195.5) internal successors, (2346), 12 states have internal predecessors, (2346), 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 1880 [2025-03-03 10:57:35,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:57:35,117 INFO L225 Difference]: With dead ends: 25998 [2025-03-03 10:57:35,117 INFO L226 Difference]: Without dead ends: 0 [2025-03-03 10:57:35,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3776 GetRequests, 3761 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2025-03-03 10:57:35,123 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 1251 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 8930 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 9130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 8930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-03-03 10:57:35,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 100 Invalid, 9130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 8930 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-03-03 10:57:35,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-03 10:57:35,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-03 10:57:35,123 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) [2025-03-03 10:57:35,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-03 10:57:35,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1880 [2025-03-03 10:57:35,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:57:35,124 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-03 10:57:35,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 195.5) internal successors, (2346), 12 states have internal predecessors, (2346), 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) [2025-03-03 10:57:35,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-03 10:57:35,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-03 10:57:35,127 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 10:57:35,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-03 10:57:35,328 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 [2025-03-03 10:57:35,330 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:57:35,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-03 10:57:36,610 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 10:57:36,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 10:57:36 BoogieIcfgContainer [2025-03-03 10:57:36,629 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 10:57:36,632 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 10:57:36,632 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 10:57:36,633 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 10:57:36,633 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:56:56" (3/4) ... [2025-03-03 10:57:36,635 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-03 10:57:36,662 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-03 10:57:36,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-03 10:57:36,665 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-03 10:57:36,667 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 10:57:36,812 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 10:57:36,812 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 10:57:36,812 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 10:57:36,813 INFO L158 Benchmark]: Toolchain (without parser) took 42687.58ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 118.9MB in the beginning and 196.0MB in the end (delta: -77.1MB). Peak memory consumption was 257.4MB. Max. memory is 16.1GB. [2025-03-03 10:57:36,813 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 10:57:36,813 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.68ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 61.2MB in the end (delta: 57.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-03 10:57:36,813 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.32ms. Allocated memory is still 167.8MB. Free memory was 61.2MB in the beginning and 37.9MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-03 10:57:36,813 INFO L158 Benchmark]: Boogie Preprocessor took 185.13ms. Allocated memory is still 167.8MB. Free memory was 37.9MB in the beginning and 79.9MB in the end (delta: -42.0MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2025-03-03 10:57:36,813 INFO L158 Benchmark]: IcfgBuilder took 1782.52ms. Allocated memory was 167.8MB in the beginning and 209.7MB in the end (delta: 41.9MB). Free memory was 79.9MB in the beginning and 151.9MB in the end (delta: -72.0MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2025-03-03 10:57:36,815 INFO L158 Benchmark]: TraceAbstraction took 39901.75ms. Allocated memory was 209.7MB in the beginning and 503.3MB in the end (delta: 293.6MB). Free memory was 151.9MB in the beginning and 217.0MB in the end (delta: -65.0MB). Peak memory consumption was 348.7MB. Max. memory is 16.1GB. [2025-03-03 10:57:36,815 INFO L158 Benchmark]: Witness Printer took 179.76ms. Allocated memory is still 503.3MB. Free memory was 217.0MB in the beginning and 196.0MB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 10:57:36,816 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.68ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 61.2MB in the end (delta: 57.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.32ms. Allocated memory is still 167.8MB. Free memory was 61.2MB in the beginning and 37.9MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 185.13ms. Allocated memory is still 167.8MB. Free memory was 37.9MB in the beginning and 79.9MB in the end (delta: -42.0MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * IcfgBuilder took 1782.52ms. Allocated memory was 167.8MB in the beginning and 209.7MB in the end (delta: 41.9MB). Free memory was 79.9MB in the beginning and 151.9MB in the end (delta: -72.0MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. * TraceAbstraction took 39901.75ms. Allocated memory was 209.7MB in the beginning and 503.3MB in the end (delta: 293.6MB). Free memory was 151.9MB in the beginning and 217.0MB in the end (delta: -65.0MB). Peak memory consumption was 348.7MB. Max. memory is 16.1GB. * Witness Printer took 179.76ms. Allocated memory is still 503.3MB. Free memory was 217.0MB in the beginning and 196.0MB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 128]: 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, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.5s, OverallIterations: 18, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 17.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5666 SdHoareTripleChecker+Valid, 16.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5666 mSDsluCounter, 4282 SdHoareTripleChecker+Invalid, 13.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 217 mSDsCounter, 3000 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25753 IncrementalHoareTripleChecker+Invalid, 28753 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3000 mSolverCounterUnsat, 4065 mSDtfsCounter, 25753 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4208 GetRequests, 4164 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12835occurred in iteration=11, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 11524 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 16.4s InterpolantComputationTime, 18448 NumberOfCodeBlocks, 18448 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 20307 ConstructedInterpolants, 0 QuantifiedInterpolants, 54438 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2615 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 21 InterpolantComputations, 17 PerfectInterpolantSequences, 52559/53432 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: 1783]: Location Invariant Derived location invariant: (((((((((((((((((((((((((((((a15 <= 3) && (0 <= ((long long) 600001 + a18))) && (a12 == 8)) && (((long long) 87 + a18) <= 0)) && (a16 <= 11)) || (((((a12 <= 5) && (a16 == 10)) && (a15 == 4)) && (0 <= ((long long) 600001 + a18))) && (((long long) a18 + 80) <= 0))) || ((((a12 == 9) && (a16 == 8)) && (a15 == 4)) && (0 <= ((long long) a18 + 155)))) || ((((a16 == 8) && (a15 == 4)) && (0 <= ((long long) 600001 + a18))) && (5 == a12))) || ((((a16 == 10) && (a12 == 8)) && (((long long) a18 + 419869) <= 0)) && (a15 == 3))) || (((((a12 == 9) && (a15 <= 3)) && (0 <= ((long long) 600001 + a18))) && (((long long) 87 + a18) <= 0)) && (a16 <= 11))) || ((a16 == 8) && (a15 <= 3))) || ((((a15 <= 3) && (0 <= ((long long) 600001 + a18))) && (a12 == 6)) && (a16 <= 11))) || ((((a16 == 8) && (a15 == 4)) && (0 <= ((long long) 600001 + a18))) && (7 == a12))) || ((((a16 == 10) && (a15 == 4)) && (0 <= ((long long) 600001 + a18))) && (a12 == 6))) || ((a16 == 9) && (a15 <= 3))) || (((a15 <= 3) && (0 <= ((long long) a18 + 155))) && (7 == a12))) || ((((a16 == 8) && (a15 == 4)) && (0 <= ((long long) 600001 + a18))) && (a12 == 6))) || (((((a12 == 9) && (a16 == 9)) && (a15 == 4)) && (0 <= ((long long) 600001 + a18))) && (((long long) a18 + 80) <= 0))) || ((((a16 == 9) && (a15 == 4)) && (0 <= ((long long) 600001 + a18))) && (7 == a12))) || (((0 <= ((long long) a18 + 155)) && (5 == a12)) && (a15 == 3))) || ((((a16 == 10) && (a12 == 8)) && (150 <= a18)) && (a15 == 3))) || ((((a16 == 10) && (a15 == 4)) && (0 <= ((long long) 154 + a18))) && (5 == a12))) || ((((a12 == 9) && (a15 <= 3)) && (0 <= ((long long) 600001 + a18))) && (11 <= a16))) || (((a15 <= 3) && (0 <= ((long long) a18 + 155))) && (a12 == 6))) || (((((a12 <= 5) && (a16 == 9)) && (a15 == 4)) && (0 <= ((long long) 600001 + a18))) && (((long long) a18 + 80) <= 0))) || ((((a16 == 9) && (a15 == 4)) && (0 <= ((long long) 600001 + a18))) && (a12 == 6))) || ((((a15 <= 3) && (0 <= ((long long) 600001 + a18))) && (a12 == 8)) && (11 <= a16))) || ((((a16 == 9) && (a15 == 4)) && (a12 == 8)) && (0 <= ((long long) a18 + 155)))) || ((((a16 == 8) && (a15 == 4)) && (0 <= ((long long) 600001 + a18))) && (a12 == 8))) RESULT: Ultimate proved your program to be correct! [2025-03-03 10:57:36,838 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