./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash b18ea44291cf6a5fe4a58e4ca0647553170f03564941daee77c7211d4f72496f --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 20:57:28,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 20:57:28,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-16 20:57:28,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 20:57:28,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 20:57:28,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 20:57:28,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 20:57:28,901 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 20:57:28,902 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 20:57:28,902 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 20:57:28,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 20:57:28,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 20:57:28,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 20:57:28,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 20:57:28,903 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 20:57:28,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 20:57:28,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 20:57:28,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 20:57:28,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 20:57:28,904 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 20:57:28,904 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 20:57:28,904 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 20:57:28,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 20:57:28,904 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 20:57:28,904 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 20:57:28,904 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 20:57:28,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 20:57:28,904 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 20:57:28,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 20:57:28,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 20:57:28,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 20:57:28,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 20:57:28,905 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 20:57:28,905 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 20:57:28,905 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 20:57:28,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 20:57:28,905 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 20:57:28,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 20:57:28,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 20:57:28,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 20:57:28,905 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b18ea44291cf6a5fe4a58e4ca0647553170f03564941daee77c7211d4f72496f [2025-03-16 20:57:29,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 20:57:29,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 20:57:29,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 20:57:29,126 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 20:57:29,127 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 20:57:29,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c [2025-03-16 20:57:30,233 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acedbbdc/1cc2f80d47224e0d8b4ec6ca7ff01bcc/FLAGa2a50f8d2 [2025-03-16 20:57:30,631 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 20:57:30,632 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c [2025-03-16 20:57:30,659 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acedbbdc/1cc2f80d47224e0d8b4ec6ca7ff01bcc/FLAGa2a50f8d2 [2025-03-16 20:57:30,790 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acedbbdc/1cc2f80d47224e0d8b4ec6ca7ff01bcc [2025-03-16 20:57:30,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 20:57:30,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 20:57:30,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 20:57:30,794 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 20:57:30,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 20:57:30,798 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 08:57:30" (1/1) ... [2025-03-16 20:57:30,799 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eaf004b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:30, skipping insertion in model container [2025-03-16 20:57:30,799 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 08:57:30" (1/1) ... [2025-03-16 20:57:30,869 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 20:57:31,026 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/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c[1270,1283] [2025-03-16 20:57:31,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 20:57:31,419 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 20:57:31,426 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/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c[1270,1283] [2025-03-16 20:57:31,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 20:57:31,636 INFO L204 MainTranslator]: Completed translation [2025-03-16 20:57:31,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31 WrapperNode [2025-03-16 20:57:31,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 20:57:31,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 20:57:31,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 20:57:31,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 20:57:31,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:31,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:32,459 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10739 [2025-03-16 20:57:32,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 20:57:32,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 20:57:32,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 20:57:32,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 20:57:32,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:32,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:32,660 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:32,794 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-16 20:57:32,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:32,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:33,027 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:33,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:33,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:33,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:33,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 20:57:33,271 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 20:57:33,271 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 20:57:33,271 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 20:57:33,272 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (1/1) ... [2025-03-16 20:57:33,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 20:57:33,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 20:57:33,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 20:57:33,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 20:57:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 20:57:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-16 20:57:33,350 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-16 20:57:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 20:57:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 20:57:33,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 20:57:34,083 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 20:57:34,084 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 20:57:44,497 INFO L? ?]: Removed 6225 outVars from TransFormulas that were not future-live. [2025-03-16 20:57:44,498 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 20:57:44,691 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 20:57:44,695 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 20:57:44,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 08:57:44 BoogieIcfgContainer [2025-03-16 20:57:44,695 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 20:57:44,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 20:57:44,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 20:57:44,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 20:57:44,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 08:57:30" (1/3) ... [2025-03-16 20:57:44,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb569b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 08:57:44, skipping insertion in model container [2025-03-16 20:57:44,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 08:57:31" (2/3) ... [2025-03-16 20:57:44,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb569b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 08:57:44, skipping insertion in model container [2025-03-16 20:57:44,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 08:57:44" (3/3) ... [2025-03-16 20:57:44,703 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c [2025-03-16 20:57:44,715 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 20:57:44,716 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c that has 2 procedures, 2946 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-16 20:57:44,785 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 20:57:44,792 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;@4df42a99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 20:57:44,792 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 20:57:44,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 2946 states, 2930 states have (on average 1.4976109215017064) internal successors, (4388), 2931 states have internal predecessors, (4388), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:57:44,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2025-03-16 20:57:44,830 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:57:44,831 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:57:44,832 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:57:44,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:57:44,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1069865863, now seen corresponding path program 1 times [2025-03-16 20:57:44,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:57:44,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785605341] [2025-03-16 20:57:44,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:57:44,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:57:45,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 766 statements into 1 equivalence classes. [2025-03-16 20:57:45,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 766 of 766 statements. [2025-03-16 20:57:45,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:57:45,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:57:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2025-03-16 20:57:45,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:57:45,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785605341] [2025-03-16 20:57:45,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785605341] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 20:57:45,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26319189] [2025-03-16 20:57:45,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:57:45,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 20:57:45,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 20:57:45,795 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) [2025-03-16 20:57:45,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-16 20:57:46,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 766 statements into 1 equivalence classes. [2025-03-16 20:57:47,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 766 of 766 statements. [2025-03-16 20:57:47,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:57:47,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:57:47,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 4684 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 20:57:47,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 20:57:47,219 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2025-03-16 20:57:47,220 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 20:57:47,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26319189] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:57:47,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 20:57:47,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-16 20:57:47,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512600809] [2025-03-16 20:57:47,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:57:47,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 20:57:47,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:57:47,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 20:57:47,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 20:57:47,250 INFO L87 Difference]: Start difference. First operand has 2946 states, 2930 states have (on average 1.4976109215017064) internal successors, (4388), 2931 states have internal predecessors, (4388), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 353.0) internal successors, (706), 2 states have internal predecessors, (706), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:57:47,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:57:47,908 INFO L93 Difference]: Finished difference Result 5293 states and 7945 transitions. [2025-03-16 20:57:47,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 20:57:47,910 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 353.0) internal successors, (706), 2 states have internal predecessors, (706), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 766 [2025-03-16 20:57:47,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:57:47,934 INFO L225 Difference]: With dead ends: 5293 [2025-03-16 20:57:47,935 INFO L226 Difference]: Without dead ends: 2944 [2025-03-16 20:57:47,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 767 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 20:57:47,948 INFO L435 NwaCegarLoop]: 3683 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3683 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-16 20:57:47,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3683 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-16 20:57:47,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2025-03-16 20:57:48,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 2944. [2025-03-16 20:57:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2929 states have (on average 1.496756572208945) internal successors, (4384), 2929 states have internal predecessors, (4384), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:57:48,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 4410 transitions. [2025-03-16 20:57:48,155 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 4410 transitions. Word has length 766 [2025-03-16 20:57:48,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:57:48,156 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 4410 transitions. [2025-03-16 20:57:48,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 353.0) internal successors, (706), 2 states have internal predecessors, (706), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:57:48,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 4410 transitions. [2025-03-16 20:57:48,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2025-03-16 20:57:48,174 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:57:48,175 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:57:48,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-16 20:57:48,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-16 20:57:48,376 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:57:48,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:57:48,378 INFO L85 PathProgramCache]: Analyzing trace with hash 138555916, now seen corresponding path program 1 times [2025-03-16 20:57:48,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:57:48,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201759323] [2025-03-16 20:57:48,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:57:48,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:57:48,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 766 statements into 1 equivalence classes. [2025-03-16 20:57:49,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 766 of 766 statements. [2025-03-16 20:57:49,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:57:49,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:57:51,940 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:57:51,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:57:51,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201759323] [2025-03-16 20:57:51,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201759323] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:57:51,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:57:51,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 20:57:51,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663270748] [2025-03-16 20:57:51,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:57:51,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 20:57:51,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:57:51,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 20:57:51,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 20:57:51,946 INFO L87 Difference]: Start difference. First operand 2944 states and 4410 transitions. Second operand has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:57:53,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:57:53,622 INFO L93 Difference]: Finished difference Result 2948 states and 4414 transitions. [2025-03-16 20:57:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:57:53,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 766 [2025-03-16 20:57:53,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:57:53,632 INFO L225 Difference]: With dead ends: 2948 [2025-03-16 20:57:53,633 INFO L226 Difference]: Without dead ends: 2946 [2025-03-16 20:57:53,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 20:57:53,634 INFO L435 NwaCegarLoop]: 3681 mSDtfsCounter, 0 mSDsluCounter, 7357 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11038 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-16 20:57:53,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11038 Invalid, 2191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-16 20:57:53,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2025-03-16 20:57:53,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2025-03-16 20:57:53,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2931 states have (on average 1.496417604912999) internal successors, (4386), 2931 states have internal predecessors, (4386), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:57:53,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 4412 transitions. [2025-03-16 20:57:53,693 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 4412 transitions. Word has length 766 [2025-03-16 20:57:53,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:57:53,695 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 4412 transitions. [2025-03-16 20:57:53,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:57:53,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 4412 transitions. [2025-03-16 20:57:53,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2025-03-16 20:57:53,700 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:57:53,701 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:57:53,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 20:57:53,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:57:53,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:57:53,703 INFO L85 PathProgramCache]: Analyzing trace with hash 4947938, now seen corresponding path program 1 times [2025-03-16 20:57:53,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:57:53,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248451836] [2025-03-16 20:57:53,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:57:53,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:57:53,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 767 statements into 1 equivalence classes. [2025-03-16 20:57:54,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 767 of 767 statements. [2025-03-16 20:57:54,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:57:54,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:57:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:57:55,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:57:55,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248451836] [2025-03-16 20:57:55,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248451836] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:57:55,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:57:55,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:57:55,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597448355] [2025-03-16 20:57:55,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:57:55,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:57:55,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:57:55,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:57:55,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:57:55,179 INFO L87 Difference]: Start difference. First operand 2946 states and 4412 transitions. Second operand has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:57:57,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:57:57,815 INFO L93 Difference]: Finished difference Result 7232 states and 10833 transitions. [2025-03-16 20:57:57,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 20:57:57,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 767 [2025-03-16 20:57:57,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:57:57,825 INFO L225 Difference]: With dead ends: 7232 [2025-03-16 20:57:57,825 INFO L226 Difference]: Without dead ends: 2946 [2025-03-16 20:57:57,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-16 20:57:57,831 INFO L435 NwaCegarLoop]: 3596 mSDtfsCounter, 8883 mSDsluCounter, 6442 mSDsCounter, 0 mSdLazyCounter, 3563 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8891 SdHoareTripleChecker+Valid, 10038 SdHoareTripleChecker+Invalid, 3774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 3563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-03-16 20:57:57,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8891 Valid, 10038 Invalid, 3774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 3563 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-03-16 20:57:57,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2025-03-16 20:57:57,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2025-03-16 20:57:57,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2931 states have (on average 1.4960764244285227) internal successors, (4385), 2931 states have internal predecessors, (4385), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:57:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 4411 transitions. [2025-03-16 20:57:57,875 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 4411 transitions. Word has length 767 [2025-03-16 20:57:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:57:57,876 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 4411 transitions. [2025-03-16 20:57:57,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:57:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 4411 transitions. [2025-03-16 20:57:57,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2025-03-16 20:57:57,880 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:57:57,881 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:57:57,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-16 20:57:57,881 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:57:57,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:57:57,882 INFO L85 PathProgramCache]: Analyzing trace with hash -183056782, now seen corresponding path program 1 times [2025-03-16 20:57:57,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:57:57,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886379145] [2025-03-16 20:57:57,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:57:57,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:57:58,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 768 statements into 1 equivalence classes. [2025-03-16 20:57:58,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 768 of 768 statements. [2025-03-16 20:57:58,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:57:58,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:57:59,490 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:57:59,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:57:59,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886379145] [2025-03-16 20:57:59,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886379145] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:57:59,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:57:59,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:57:59,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150831310] [2025-03-16 20:57:59,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:57:59,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:57:59,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:57:59,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:57:59,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:57:59,494 INFO L87 Difference]: Start difference. First operand 2946 states and 4411 transitions. Second operand has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:58:01,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:01,074 INFO L93 Difference]: Finished difference Result 5295 states and 7927 transitions. [2025-03-16 20:58:01,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:01,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 768 [2025-03-16 20:58:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:01,083 INFO L225 Difference]: With dead ends: 5295 [2025-03-16 20:58:01,083 INFO L226 Difference]: Without dead ends: 2946 [2025-03-16 20:58:01,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:01,087 INFO L435 NwaCegarLoop]: 2838 mSDtfsCounter, 8234 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8239 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 3153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:01,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8239 Valid, 5677 Invalid, 3153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-16 20:58:01,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2025-03-16 20:58:01,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2025-03-16 20:58:01,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2931 states have (on average 1.4957352439440463) internal successors, (4384), 2931 states have internal predecessors, (4384), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 4410 transitions. [2025-03-16 20:58:01,127 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 4410 transitions. Word has length 768 [2025-03-16 20:58:01,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:01,128 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 4410 transitions. [2025-03-16 20:58:01,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:58:01,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 4410 transitions. [2025-03-16 20:58:01,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2025-03-16 20:58:01,134 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:01,134 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:01,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-16 20:58:01,134 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:01,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:01,135 INFO L85 PathProgramCache]: Analyzing trace with hash 2062409143, now seen corresponding path program 1 times [2025-03-16 20:58:01,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:01,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350994934] [2025-03-16 20:58:01,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:01,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:01,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 769 statements into 1 equivalence classes. [2025-03-16 20:58:01,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 769 of 769 statements. [2025-03-16 20:58:01,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:01,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:02,580 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:02,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:02,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350994934] [2025-03-16 20:58:02,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350994934] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:02,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:02,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:02,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736170731] [2025-03-16 20:58:02,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:02,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:02,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:02,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:02,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:02,585 INFO L87 Difference]: Start difference. First operand 2946 states and 4410 transitions. Second operand has 5 states, 5 states have (on average 141.4) internal successors, (707), 5 states have internal predecessors, (707), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:58:04,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:04,227 INFO L93 Difference]: Finished difference Result 5295 states and 7925 transitions. [2025-03-16 20:58:04,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:04,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 141.4) internal successors, (707), 5 states have internal predecessors, (707), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 769 [2025-03-16 20:58:04,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:04,239 INFO L225 Difference]: With dead ends: 5295 [2025-03-16 20:58:04,239 INFO L226 Difference]: Without dead ends: 2946 [2025-03-16 20:58:04,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:04,243 INFO L435 NwaCegarLoop]: 2838 mSDtfsCounter, 8106 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 3150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8111 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 3151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:04,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8111 Valid, 5677 Invalid, 3151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3150 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-16 20:58:04,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2025-03-16 20:58:04,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2025-03-16 20:58:04,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2931 states have (on average 1.4953940634595702) internal successors, (4383), 2931 states have internal predecessors, (4383), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:04,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 4409 transitions. [2025-03-16 20:58:04,290 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 4409 transitions. Word has length 769 [2025-03-16 20:58:04,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:04,291 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 4409 transitions. [2025-03-16 20:58:04,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.4) internal successors, (707), 5 states have internal predecessors, (707), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:58:04,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 4409 transitions. [2025-03-16 20:58:04,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2025-03-16 20:58:04,299 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:04,299 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:04,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-16 20:58:04,299 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:04,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:04,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2055493869, now seen corresponding path program 1 times [2025-03-16 20:58:04,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:04,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877150715] [2025-03-16 20:58:04,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:04,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:04,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 770 statements into 1 equivalence classes. [2025-03-16 20:58:04,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 770 of 770 statements. [2025-03-16 20:58:04,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:04,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:05,402 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:05,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:05,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877150715] [2025-03-16 20:58:05,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877150715] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:05,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:05,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:05,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852815850] [2025-03-16 20:58:05,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:05,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:05,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:05,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:05,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:05,405 INFO L87 Difference]: Start difference. First operand 2946 states and 4409 transitions. Second operand has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:58:06,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:06,987 INFO L93 Difference]: Finished difference Result 5295 states and 7923 transitions. [2025-03-16 20:58:06,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:06,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 770 [2025-03-16 20:58:06,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:06,995 INFO L225 Difference]: With dead ends: 5295 [2025-03-16 20:58:06,995 INFO L226 Difference]: Without dead ends: 2946 [2025-03-16 20:58:06,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:06,998 INFO L435 NwaCegarLoop]: 2838 mSDtfsCounter, 7978 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 3148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7983 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:06,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7983 Valid, 5677 Invalid, 3149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3148 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-16 20:58:07,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2025-03-16 20:58:07,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2025-03-16 20:58:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2931 states have (on average 1.4950528829750938) internal successors, (4382), 2931 states have internal predecessors, (4382), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:07,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 4408 transitions. [2025-03-16 20:58:07,033 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 4408 transitions. Word has length 770 [2025-03-16 20:58:07,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:07,034 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 4408 transitions. [2025-03-16 20:58:07,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:58:07,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 4408 transitions. [2025-03-16 20:58:07,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2025-03-16 20:58:07,039 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:07,039 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:07,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-16 20:58:07,039 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:07,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:07,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1203029102, now seen corresponding path program 1 times [2025-03-16 20:58:07,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:07,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438502536] [2025-03-16 20:58:07,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:07,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:07,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 771 statements into 1 equivalence classes. [2025-03-16 20:58:07,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 771 of 771 statements. [2025-03-16 20:58:07,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:07,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:08,419 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:08,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:08,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438502536] [2025-03-16 20:58:08,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438502536] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:08,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:08,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:08,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980078105] [2025-03-16 20:58:08,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:08,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:08,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:08,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:08,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:08,422 INFO L87 Difference]: Start difference. First operand 2946 states and 4408 transitions. Second operand has 5 states, 5 states have (on average 141.8) internal successors, (709), 5 states have internal predecessors, (709), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:58:09,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:09,919 INFO L93 Difference]: Finished difference Result 5295 states and 7921 transitions. [2025-03-16 20:58:09,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:09,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 141.8) internal successors, (709), 5 states have internal predecessors, (709), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 771 [2025-03-16 20:58:09,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:09,928 INFO L225 Difference]: With dead ends: 5295 [2025-03-16 20:58:09,928 INFO L226 Difference]: Without dead ends: 2946 [2025-03-16 20:58:09,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:09,931 INFO L435 NwaCegarLoop]: 2838 mSDtfsCounter, 4102 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 3146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 5693 SdHoareTripleChecker+Invalid, 3147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:09,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4107 Valid, 5693 Invalid, 3147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3146 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-16 20:58:09,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2025-03-16 20:58:09,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2025-03-16 20:58:09,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2931 states have (on average 1.4947117024906176) internal successors, (4381), 2931 states have internal predecessors, (4381), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:09,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 4407 transitions. [2025-03-16 20:58:09,971 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 4407 transitions. Word has length 771 [2025-03-16 20:58:09,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:09,972 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 4407 transitions. [2025-03-16 20:58:09,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.8) internal successors, (709), 5 states have internal predecessors, (709), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-16 20:58:09,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 4407 transitions. [2025-03-16 20:58:09,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2025-03-16 20:58:09,977 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:09,977 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:09,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-16 20:58:09,978 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:09,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:09,979 INFO L85 PathProgramCache]: Analyzing trace with hash -790781464, now seen corresponding path program 1 times [2025-03-16 20:58:09,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:09,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781211225] [2025-03-16 20:58:09,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:09,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:10,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 772 statements into 1 equivalence classes. [2025-03-16 20:58:10,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 772 of 772 statements. [2025-03-16 20:58:10,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:10,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:11,419 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:11,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:11,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781211225] [2025-03-16 20:58:11,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781211225] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:11,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:11,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 20:58:11,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373433880] [2025-03-16 20:58:11,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:11,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 20:58:11,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:11,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 20:58:11,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 20:58:11,422 INFO L87 Difference]: Start difference. First operand 2946 states and 4407 transitions. Second operand has 4 states, 4 states have (on average 177.5) internal successors, (710), 4 states have internal predecessors, (710), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:12,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:12,206 INFO L93 Difference]: Finished difference Result 5297 states and 7922 transitions. [2025-03-16 20:58:12,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:12,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 177.5) internal successors, (710), 4 states have internal predecessors, (710), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 772 [2025-03-16 20:58:12,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:12,215 INFO L225 Difference]: With dead ends: 5297 [2025-03-16 20:58:12,215 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:12,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 20:58:12,218 INFO L435 NwaCegarLoop]: 3676 mSDtfsCounter, 0 mSDsluCounter, 7344 mSDsCounter, 0 mSdLazyCounter, 2194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11020 SdHoareTripleChecker+Invalid, 2194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:12,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11020 Invalid, 2194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2194 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-16 20:58:12,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:12,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:12,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.4943743607228095) internal successors, (4383), 2933 states have internal predecessors, (4383), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:12,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4409 transitions. [2025-03-16 20:58:12,255 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4409 transitions. Word has length 772 [2025-03-16 20:58:12,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:12,257 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4409 transitions. [2025-03-16 20:58:12,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 177.5) internal successors, (710), 4 states have internal predecessors, (710), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:12,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4409 transitions. [2025-03-16 20:58:12,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2025-03-16 20:58:12,262 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:12,262 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:12,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-16 20:58:12,263 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:12,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:12,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1107876991, now seen corresponding path program 1 times [2025-03-16 20:58:12,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:12,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126334057] [2025-03-16 20:58:12,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:12,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:12,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 773 statements into 1 equivalence classes. [2025-03-16 20:58:12,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 773 of 773 statements. [2025-03-16 20:58:12,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:12,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:13,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:13,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126334057] [2025-03-16 20:58:13,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126334057] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:13,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:13,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 20:58:13,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494180456] [2025-03-16 20:58:13,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:13,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 20:58:13,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:13,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 20:58:13,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 20:58:13,892 INFO L87 Difference]: Start difference. First operand 2948 states and 4409 transitions. Second operand has 4 states, 4 states have (on average 177.75) internal successors, (711), 4 states have internal predecessors, (711), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:15,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:15,158 INFO L93 Difference]: Finished difference Result 5299 states and 7923 transitions. [2025-03-16 20:58:15,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:15,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 177.75) internal successors, (711), 4 states have internal predecessors, (711), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 773 [2025-03-16 20:58:15,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:15,172 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:15,172 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:15,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:15,177 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 3791 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3791 SdHoareTripleChecker+Valid, 6797 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:15,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3791 Valid, 6797 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2024 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-16 20:58:15,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:15,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:15,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.494033412887828) internal successors, (4382), 2933 states have internal predecessors, (4382), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:15,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4408 transitions. [2025-03-16 20:58:15,215 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4408 transitions. Word has length 773 [2025-03-16 20:58:15,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:15,216 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4408 transitions. [2025-03-16 20:58:15,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 177.75) internal successors, (711), 4 states have internal predecessors, (711), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:15,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4408 transitions. [2025-03-16 20:58:15,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2025-03-16 20:58:15,222 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:15,223 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:15,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-16 20:58:15,223 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:15,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:15,224 INFO L85 PathProgramCache]: Analyzing trace with hash 220174766, now seen corresponding path program 1 times [2025-03-16 20:58:15,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:15,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847744656] [2025-03-16 20:58:15,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:15,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:15,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 774 statements into 1 equivalence classes. [2025-03-16 20:58:15,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 774 of 774 statements. [2025-03-16 20:58:15,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:15,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:16,378 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:16,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:16,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847744656] [2025-03-16 20:58:16,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847744656] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:16,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:16,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:16,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187592832] [2025-03-16 20:58:16,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:16,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:16,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:16,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:16,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:16,380 INFO L87 Difference]: Start difference. First operand 2948 states and 4408 transitions. Second operand has 5 states, 5 states have (on average 142.4) internal successors, (712), 5 states have internal predecessors, (712), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:17,553 INFO L93 Difference]: Finished difference Result 5517 states and 8245 transitions. [2025-03-16 20:58:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 20:58:17,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 142.4) internal successors, (712), 5 states have internal predecessors, (712), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 774 [2025-03-16 20:58:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:17,560 INFO L225 Difference]: With dead ends: 5517 [2025-03-16 20:58:17,560 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:17,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-16 20:58:17,563 INFO L435 NwaCegarLoop]: 3645 mSDtfsCounter, 4398 mSDsluCounter, 7056 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4398 SdHoareTripleChecker+Valid, 10701 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:17,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4398 Valid, 10701 Invalid, 2543 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-16 20:58:17,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:17,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:17,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.493692465052847) internal successors, (4381), 2933 states have internal predecessors, (4381), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:17,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4407 transitions. [2025-03-16 20:58:17,595 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4407 transitions. Word has length 774 [2025-03-16 20:58:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:17,596 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4407 transitions. [2025-03-16 20:58:17,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.4) internal successors, (712), 5 states have internal predecessors, (712), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:17,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4407 transitions. [2025-03-16 20:58:17,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2025-03-16 20:58:17,601 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:17,601 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:17,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-16 20:58:17,601 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:17,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:17,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1475608752, now seen corresponding path program 1 times [2025-03-16 20:58:17,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:17,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291881906] [2025-03-16 20:58:17,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:17,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:17,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 775 statements into 1 equivalence classes. [2025-03-16 20:58:17,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 775 of 775 statements. [2025-03-16 20:58:17,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:17,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:18,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:18,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291881906] [2025-03-16 20:58:18,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291881906] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:18,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:18,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:18,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098073840] [2025-03-16 20:58:18,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:18,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:18,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:18,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:18,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:18,940 INFO L87 Difference]: Start difference. First operand 2948 states and 4407 transitions. Second operand has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:19,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:19,976 INFO L93 Difference]: Finished difference Result 5299 states and 7919 transitions. [2025-03-16 20:58:19,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:19,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 775 [2025-03-16 20:58:19,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:19,981 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:19,981 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:19,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:19,984 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 4372 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4385 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:19,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4385 Valid, 6813 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-16 20:58:19,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:20,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:20,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.4933515172178657) internal successors, (4380), 2933 states have internal predecessors, (4380), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:20,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4406 transitions. [2025-03-16 20:58:20,048 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4406 transitions. Word has length 775 [2025-03-16 20:58:20,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:20,049 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4406 transitions. [2025-03-16 20:58:20,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4406 transitions. [2025-03-16 20:58:20,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2025-03-16 20:58:20,054 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:20,054 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:20,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-16 20:58:20,057 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:20,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:20,057 INFO L85 PathProgramCache]: Analyzing trace with hash -733009847, now seen corresponding path program 1 times [2025-03-16 20:58:20,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:20,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688098151] [2025-03-16 20:58:20,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:20,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:20,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 776 statements into 1 equivalence classes. [2025-03-16 20:58:20,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 776 of 776 statements. [2025-03-16 20:58:20,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:20,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:21,087 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:21,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:21,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688098151] [2025-03-16 20:58:21,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688098151] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:21,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:21,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:21,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445419806] [2025-03-16 20:58:21,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:21,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:21,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:21,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:21,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:21,089 INFO L87 Difference]: Start difference. First operand 2948 states and 4406 transitions. Second operand has 5 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:22,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:22,105 INFO L93 Difference]: Finished difference Result 5299 states and 7917 transitions. [2025-03-16 20:58:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:22,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 776 [2025-03-16 20:58:22,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:22,111 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:22,112 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:22,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:22,114 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 8280 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8293 SdHoareTripleChecker+Valid, 6797 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:22,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8293 Valid, 6797 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-16 20:58:22,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:22,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:22,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.4930105693828843) internal successors, (4379), 2933 states have internal predecessors, (4379), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:22,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4405 transitions. [2025-03-16 20:58:22,142 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4405 transitions. Word has length 776 [2025-03-16 20:58:22,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:22,143 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4405 transitions. [2025-03-16 20:58:22,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:22,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4405 transitions. [2025-03-16 20:58:22,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2025-03-16 20:58:22,147 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:22,148 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:22,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-16 20:58:22,148 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:22,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:22,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1979284715, now seen corresponding path program 1 times [2025-03-16 20:58:22,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:22,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541773005] [2025-03-16 20:58:22,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:22,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:22,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 777 statements into 1 equivalence classes. [2025-03-16 20:58:22,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 777 of 777 statements. [2025-03-16 20:58:22,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:22,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:23,230 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:23,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:23,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541773005] [2025-03-16 20:58:23,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541773005] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:23,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:23,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:23,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371724446] [2025-03-16 20:58:23,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:23,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:23,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:23,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:23,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:23,231 INFO L87 Difference]: Start difference. First operand 2948 states and 4405 transitions. Second operand has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:24,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:24,262 INFO L93 Difference]: Finished difference Result 5299 states and 7915 transitions. [2025-03-16 20:58:24,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:24,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 777 [2025-03-16 20:58:24,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:24,267 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:24,267 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:24,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:24,269 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 4364 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4377 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:24,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4377 Valid, 6813 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-16 20:58:24,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:24,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:24,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.4926696215479032) internal successors, (4378), 2933 states have internal predecessors, (4378), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4404 transitions. [2025-03-16 20:58:24,292 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4404 transitions. Word has length 777 [2025-03-16 20:58:24,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:24,292 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4404 transitions. [2025-03-16 20:58:24,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:24,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4404 transitions. [2025-03-16 20:58:24,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2025-03-16 20:58:24,296 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:24,296 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:24,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-16 20:58:24,296 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:24,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:24,297 INFO L85 PathProgramCache]: Analyzing trace with hash 963629156, now seen corresponding path program 1 times [2025-03-16 20:58:24,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:24,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928504019] [2025-03-16 20:58:24,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:24,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:24,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 778 statements into 1 equivalence classes. [2025-03-16 20:58:24,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 778 of 778 statements. [2025-03-16 20:58:24,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:24,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:25,648 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:25,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:25,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928504019] [2025-03-16 20:58:25,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928504019] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:25,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:25,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:25,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537071693] [2025-03-16 20:58:25,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:25,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:25,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:25,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:25,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:25,650 INFO L87 Difference]: Start difference. First operand 2948 states and 4404 transitions. Second operand has 5 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:26,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:26,701 INFO L93 Difference]: Finished difference Result 5299 states and 7913 transitions. [2025-03-16 20:58:26,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:26,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 778 [2025-03-16 20:58:26,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:26,707 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:26,707 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:26,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:26,710 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 4360 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 2014 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4373 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:26,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4373 Valid, 6813 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2014 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-16 20:58:26,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:26,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:26,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.492328673712922) internal successors, (4377), 2933 states have internal predecessors, (4377), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4403 transitions. [2025-03-16 20:58:26,753 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4403 transitions. Word has length 778 [2025-03-16 20:58:26,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:26,753 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4403 transitions. [2025-03-16 20:58:26,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:26,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4403 transitions. [2025-03-16 20:58:26,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2025-03-16 20:58:26,761 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:26,762 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:26,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-16 20:58:26,762 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:26,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:26,763 INFO L85 PathProgramCache]: Analyzing trace with hash -214746458, now seen corresponding path program 1 times [2025-03-16 20:58:26,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:26,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748200330] [2025-03-16 20:58:26,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:26,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:26,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 779 statements into 1 equivalence classes. [2025-03-16 20:58:27,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 779 of 779 statements. [2025-03-16 20:58:27,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:27,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:27,816 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:27,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:27,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748200330] [2025-03-16 20:58:27,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748200330] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:27,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:27,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:27,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139946734] [2025-03-16 20:58:27,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:27,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:27,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:27,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:27,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:27,818 INFO L87 Difference]: Start difference. First operand 2948 states and 4403 transitions. Second operand has 5 states, 5 states have (on average 143.4) internal successors, (717), 5 states have internal predecessors, (717), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:28,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:28,833 INFO L93 Difference]: Finished difference Result 5299 states and 7911 transitions. [2025-03-16 20:58:28,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:28,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 143.4) internal successors, (717), 5 states have internal predecessors, (717), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 779 [2025-03-16 20:58:28,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:28,838 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:28,838 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:28,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:28,841 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 4356 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4369 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:28,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4369 Valid, 6813 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-16 20:58:28,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:28,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:28,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.4919877258779406) internal successors, (4376), 2933 states have internal predecessors, (4376), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:28,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4402 transitions. [2025-03-16 20:58:28,869 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4402 transitions. Word has length 779 [2025-03-16 20:58:28,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:28,871 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4402 transitions. [2025-03-16 20:58:28,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.4) internal successors, (717), 5 states have internal predecessors, (717), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:28,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4402 transitions. [2025-03-16 20:58:28,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2025-03-16 20:58:28,876 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:28,876 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:28,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-16 20:58:28,876 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:28,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:28,877 INFO L85 PathProgramCache]: Analyzing trace with hash 91574783, now seen corresponding path program 1 times [2025-03-16 20:58:28,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:28,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520334904] [2025-03-16 20:58:28,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:28,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:29,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 780 statements into 1 equivalence classes. [2025-03-16 20:58:29,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 780 of 780 statements. [2025-03-16 20:58:29,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:29,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:29,888 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:29,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520334904] [2025-03-16 20:58:29,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520334904] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:29,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:29,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:29,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453236113] [2025-03-16 20:58:29,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:29,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:29,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:29,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:29,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:29,889 INFO L87 Difference]: Start difference. First operand 2948 states and 4402 transitions. Second operand has 5 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:30,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:30,891 INFO L93 Difference]: Finished difference Result 5299 states and 7909 transitions. [2025-03-16 20:58:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:30,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 780 [2025-03-16 20:58:30,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:30,897 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:30,897 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:30,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:30,900 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 8248 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8261 SdHoareTripleChecker+Valid, 6797 SdHoareTripleChecker+Invalid, 2011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:30,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8261 Valid, 6797 Invalid, 2011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-16 20:58:30,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:30,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:30,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.4916467780429594) internal successors, (4375), 2933 states have internal predecessors, (4375), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:30,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4401 transitions. [2025-03-16 20:58:30,967 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4401 transitions. Word has length 780 [2025-03-16 20:58:30,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:30,968 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4401 transitions. [2025-03-16 20:58:30,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:30,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4401 transitions. [2025-03-16 20:58:30,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2025-03-16 20:58:30,972 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:30,973 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:30,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-16 20:58:30,973 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:30,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:30,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1158481439, now seen corresponding path program 1 times [2025-03-16 20:58:30,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:30,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379356292] [2025-03-16 20:58:30,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:30,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:31,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 781 statements into 1 equivalence classes. [2025-03-16 20:58:31,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 781 of 781 statements. [2025-03-16 20:58:31,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:31,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:31,969 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:31,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:31,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379356292] [2025-03-16 20:58:31,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379356292] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:31,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:31,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:31,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336741784] [2025-03-16 20:58:31,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:31,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:31,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:31,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:31,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:31,972 INFO L87 Difference]: Start difference. First operand 2948 states and 4401 transitions. Second operand has 5 states, 5 states have (on average 143.8) internal successors, (719), 5 states have internal predecessors, (719), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:33,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:33,028 INFO L93 Difference]: Finished difference Result 5299 states and 7907 transitions. [2025-03-16 20:58:33,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:33,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 143.8) internal successors, (719), 5 states have internal predecessors, (719), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 781 [2025-03-16 20:58:33,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:33,032 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:33,032 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:33,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:33,034 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 8240 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8253 SdHoareTripleChecker+Valid, 6797 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:33,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8253 Valid, 6797 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-16 20:58:33,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:33,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:33,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.4913058302079782) internal successors, (4374), 2933 states have internal predecessors, (4374), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4400 transitions. [2025-03-16 20:58:33,062 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4400 transitions. Word has length 781 [2025-03-16 20:58:33,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:33,063 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4400 transitions. [2025-03-16 20:58:33,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.8) internal successors, (719), 5 states have internal predecessors, (719), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:33,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4400 transitions. [2025-03-16 20:58:33,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 783 [2025-03-16 20:58:33,067 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:33,067 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:33,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-16 20:58:33,068 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:33,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:33,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1651731738, now seen corresponding path program 1 times [2025-03-16 20:58:33,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:33,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106611393] [2025-03-16 20:58:33,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:33,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:33,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 782 statements into 1 equivalence classes. [2025-03-16 20:58:33,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 782 of 782 statements. [2025-03-16 20:58:33,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:33,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:34,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:34,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106611393] [2025-03-16 20:58:34,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106611393] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:34,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:34,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:34,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835443323] [2025-03-16 20:58:34,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:34,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:34,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:34,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:34,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:34,068 INFO L87 Difference]: Start difference. First operand 2948 states and 4400 transitions. Second operand has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:35,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:35,151 INFO L93 Difference]: Finished difference Result 5299 states and 7905 transitions. [2025-03-16 20:58:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:35,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 782 [2025-03-16 20:58:35,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:35,155 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:35,155 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:35,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:35,157 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 8138 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8151 SdHoareTripleChecker+Valid, 6797 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:35,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8151 Valid, 6797 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-16 20:58:35,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:35,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:35,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.4909648823729968) internal successors, (4373), 2933 states have internal predecessors, (4373), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4399 transitions. [2025-03-16 20:58:35,195 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4399 transitions. Word has length 782 [2025-03-16 20:58:35,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:35,196 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4399 transitions. [2025-03-16 20:58:35,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:35,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4399 transitions. [2025-03-16 20:58:35,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2025-03-16 20:58:35,200 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:35,200 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:35,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-16 20:58:35,200 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:35,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:35,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1504918127, now seen corresponding path program 1 times [2025-03-16 20:58:35,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:35,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767589184] [2025-03-16 20:58:35,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:35,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:35,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 783 statements into 1 equivalence classes. [2025-03-16 20:58:35,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 783 of 783 statements. [2025-03-16 20:58:35,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:35,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:36,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:36,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767589184] [2025-03-16 20:58:36,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767589184] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:36,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:36,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:36,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510820143] [2025-03-16 20:58:36,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:36,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:36,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:36,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:36,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:36,335 INFO L87 Difference]: Start difference. First operand 2948 states and 4399 transitions. Second operand has 5 states, 5 states have (on average 144.2) internal successors, (721), 5 states have internal predecessors, (721), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:37,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:37,343 INFO L93 Difference]: Finished difference Result 5299 states and 7903 transitions. [2025-03-16 20:58:37,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:37,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 144.2) internal successors, (721), 5 states have internal predecessors, (721), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 783 [2025-03-16 20:58:37,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:37,346 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:37,346 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:37,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:37,349 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 8130 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8143 SdHoareTripleChecker+Valid, 6797 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:37,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8143 Valid, 6797 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-16 20:58:37,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:37,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:37,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.4906239345380157) internal successors, (4372), 2933 states have internal predecessors, (4372), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4398 transitions. [2025-03-16 20:58:37,373 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4398 transitions. Word has length 783 [2025-03-16 20:58:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:37,373 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4398 transitions. [2025-03-16 20:58:37,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.2) internal successors, (721), 5 states have internal predecessors, (721), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4398 transitions. [2025-03-16 20:58:37,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2025-03-16 20:58:37,377 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:37,377 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:37,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-16 20:58:37,378 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:37,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:37,378 INFO L85 PathProgramCache]: Analyzing trace with hash -32842561, now seen corresponding path program 1 times [2025-03-16 20:58:37,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:37,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764347867] [2025-03-16 20:58:37,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:37,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:37,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 784 statements into 1 equivalence classes. [2025-03-16 20:58:37,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 784 of 784 statements. [2025-03-16 20:58:37,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:37,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:38,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:38,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764347867] [2025-03-16 20:58:38,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764347867] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:38,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:38,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:38,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185864891] [2025-03-16 20:58:38,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:38,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:38,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:38,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:38,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:38,385 INFO L87 Difference]: Start difference. First operand 2948 states and 4398 transitions. Second operand has 5 states, 5 states have (on average 144.4) internal successors, (722), 5 states have internal predecessors, (722), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:39,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:39,393 INFO L93 Difference]: Finished difference Result 5299 states and 7901 transitions. [2025-03-16 20:58:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:39,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 144.4) internal successors, (722), 5 states have internal predecessors, (722), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 784 [2025-03-16 20:58:39,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:39,396 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:39,396 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:39,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:39,399 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 8122 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8135 SdHoareTripleChecker+Valid, 6797 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:39,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8135 Valid, 6797 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-16 20:58:39,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:39,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:39,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.4902829867030345) internal successors, (4371), 2933 states have internal predecessors, (4371), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:39,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4397 transitions. [2025-03-16 20:58:39,428 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4397 transitions. Word has length 784 [2025-03-16 20:58:39,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:39,428 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4397 transitions. [2025-03-16 20:58:39,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.4) internal successors, (722), 5 states have internal predecessors, (722), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:39,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4397 transitions. [2025-03-16 20:58:39,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2025-03-16 20:58:39,434 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:39,434 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:39,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-16 20:58:39,434 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:39,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:39,436 INFO L85 PathProgramCache]: Analyzing trace with hash -57882956, now seen corresponding path program 1 times [2025-03-16 20:58:39,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:39,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239533910] [2025-03-16 20:58:39,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:39,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:39,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 785 statements into 1 equivalence classes. [2025-03-16 20:58:39,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 785 of 785 statements. [2025-03-16 20:58:39,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:39,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:40,434 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:40,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:40,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239533910] [2025-03-16 20:58:40,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239533910] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:40,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:40,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:40,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455814867] [2025-03-16 20:58:40,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:40,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:40,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:40,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:40,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:40,436 INFO L87 Difference]: Start difference. First operand 2948 states and 4397 transitions. Second operand has 5 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:41,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:41,421 INFO L93 Difference]: Finished difference Result 5299 states and 7899 transitions. [2025-03-16 20:58:41,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:41,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 785 [2025-03-16 20:58:41,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:41,425 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:41,425 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:41,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:41,427 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 4285 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4298 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:41,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4298 Valid, 6813 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-16 20:58:41,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:41,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:41,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.489942038868053) internal successors, (4370), 2933 states have internal predecessors, (4370), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:41,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4396 transitions. [2025-03-16 20:58:41,455 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4396 transitions. Word has length 785 [2025-03-16 20:58:41,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:41,455 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4396 transitions. [2025-03-16 20:58:41,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:41,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4396 transitions. [2025-03-16 20:58:41,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2025-03-16 20:58:41,459 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:41,459 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:41,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-16 20:58:41,460 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:41,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:41,460 INFO L85 PathProgramCache]: Analyzing trace with hash -726455580, now seen corresponding path program 1 times [2025-03-16 20:58:41,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:41,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216419578] [2025-03-16 20:58:41,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:41,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:41,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 786 statements into 1 equivalence classes. [2025-03-16 20:58:41,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 786 of 786 statements. [2025-03-16 20:58:41,866 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:41,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:42,565 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:42,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:42,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216419578] [2025-03-16 20:58:42,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216419578] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:42,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:42,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:42,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632757758] [2025-03-16 20:58:42,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:42,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:42,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:42,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:42,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:42,567 INFO L87 Difference]: Start difference. First operand 2948 states and 4396 transitions. Second operand has 5 states, 5 states have (on average 144.8) internal successors, (724), 5 states have internal predecessors, (724), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:43,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 20:58:43,523 INFO L93 Difference]: Finished difference Result 5299 states and 7897 transitions. [2025-03-16 20:58:43,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 20:58:43,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 144.8) internal successors, (724), 5 states have internal predecessors, (724), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 786 [2025-03-16 20:58:43,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 20:58:43,526 INFO L225 Difference]: With dead ends: 5299 [2025-03-16 20:58:43,526 INFO L226 Difference]: Without dead ends: 2948 [2025-03-16 20:58:43,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 20:58:43,530 INFO L435 NwaCegarLoop]: 3398 mSDtfsCounter, 8106 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8119 SdHoareTripleChecker+Valid, 6797 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-16 20:58:43,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8119 Valid, 6797 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-16 20:58:43,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-16 20:58:43,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2948. [2025-03-16 20:58:43,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2933 states have (on average 1.489601091033072) internal successors, (4369), 2933 states have internal predecessors, (4369), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-16 20:58:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4395 transitions. [2025-03-16 20:58:43,561 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4395 transitions. Word has length 786 [2025-03-16 20:58:43,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 20:58:43,562 INFO L471 AbstractCegarLoop]: Abstraction has 2948 states and 4395 transitions. [2025-03-16 20:58:43,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.8) internal successors, (724), 5 states have internal predecessors, (724), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-16 20:58:43,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4395 transitions. [2025-03-16 20:58:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2025-03-16 20:58:43,566 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 20:58:43,566 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 20:58:43,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-16 20:58:43,566 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 20:58:43,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 20:58:43,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1680049799, now seen corresponding path program 1 times [2025-03-16 20:58:43,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 20:58:43,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881646631] [2025-03-16 20:58:43,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 20:58:43,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 20:58:43,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 787 statements into 1 equivalence classes. [2025-03-16 20:58:44,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 787 of 787 statements. [2025-03-16 20:58:44,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 20:58:44,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 20:58:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-16 20:58:44,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 20:58:44,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881646631] [2025-03-16 20:58:44,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881646631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 20:58:44,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 20:58:44,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 20:58:44,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024280896] [2025-03-16 20:58:44,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 20:58:44,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 20:58:44,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 20:58:44,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 20:58:44,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 20:58:44,599 INFO L87 Difference]: Start difference. First operand 2948 states and 4395 transitions. Second operand has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)