./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.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 24f8a0e9c852c8c27c98f017e17cd03e22f029ed37643ba9157cebc08b066e9c --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 17:36:54,721 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 17:36:54,766 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-03 17:36:54,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 17:36:54,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 17:36:54,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 17:36:54,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 17:36:54,791 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 17:36:54,791 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 17:36:54,792 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 17:36:54,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 17:36:54,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 17:36:54,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 17:36:54,793 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 17:36:54,793 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 17:36:54,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 17:36:54,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 17:36:54,794 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 17:36:54,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 17:36:54,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 17:36:54,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 17:36:54,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 17:36:54,794 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 17:36:54,794 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 17:36:54,794 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 17:36:54,794 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 17:36:54,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 17:36:54,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 17:36:54,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 17:36:54,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 17:36:54,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 17:36:54,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 17:36:54,795 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 17:36:54,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 17:36:54,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 17:36:54,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 17:36:54,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 17:36:54,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 17:36:54,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 17:36:54,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 17:36:54,795 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 -> 24f8a0e9c852c8c27c98f017e17cd03e22f029ed37643ba9157cebc08b066e9c [2025-03-03 17:36:55,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 17:36:55,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 17:36:55,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 17:36:55,032 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 17:36:55,032 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 17:36:55,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c [2025-03-03 17:36:56,162 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f746b2f0e/814d4c079d7d4de286371c80cd2ad2dd/FLAGf6cb208e2 [2025-03-03 17:36:56,535 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 17:36:56,535 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c [2025-03-03 17:36:56,555 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f746b2f0e/814d4c079d7d4de286371c80cd2ad2dd/FLAGf6cb208e2 [2025-03-03 17:36:56,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f746b2f0e/814d4c079d7d4de286371c80cd2ad2dd [2025-03-03 17:36:56,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 17:36:56,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 17:36:56,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 17:36:56,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 17:36:56,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 17:36:56,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:36:56" (1/1) ... [2025-03-03 17:36:56,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c78adea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:56, skipping insertion in model container [2025-03-03 17:36:56,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:36:56" (1/1) ... [2025-03-03 17:36:56,773 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 17:36:56,898 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.hanoi.1.prop1-func-interl.c[1172,1185] [2025-03-03 17:36:57,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 17:36:57,121 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 17:36:57,127 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.hanoi.1.prop1-func-interl.c[1172,1185] [2025-03-03 17:36:57,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 17:36:57,281 INFO L204 MainTranslator]: Completed translation [2025-03-03 17:36:57,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57 WrapperNode [2025-03-03 17:36:57,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 17:36:57,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 17:36:57,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 17:36:57,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 17:36:57,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:57,320 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:57,739 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4880 [2025-03-03 17:36:57,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 17:36:57,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 17:36:57,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 17:36:57,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 17:36:57,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:57,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:57,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:57,983 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-03 17:36:57,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:57,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:58,063 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:58,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:58,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:58,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:58,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 17:36:58,175 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 17:36:58,175 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 17:36:58,175 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 17:36:58,176 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (1/1) ... [2025-03-03 17:36:58,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 17:36:58,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:36:58,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 17:36:58,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 17:36:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 17:36:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 17:36:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 17:36:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 17:36:58,494 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 17:36:58,495 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 17:37:02,018 INFO L? ?]: Removed 2831 outVars from TransFormulas that were not future-live. [2025-03-03 17:37:02,018 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 17:37:02,194 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 17:37:02,197 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 17:37:02,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:37:02 BoogieIcfgContainer [2025-03-03 17:37:02,198 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 17:37:02,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 17:37:02,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 17:37:02,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 17:37:02,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 05:36:56" (1/3) ... [2025-03-03 17:37:02,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26df40f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:37:02, skipping insertion in model container [2025-03-03 17:37:02,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:57" (2/3) ... [2025-03-03 17:37:02,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26df40f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:37:02, skipping insertion in model container [2025-03-03 17:37:02,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:37:02" (3/3) ... [2025-03-03 17:37:02,206 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.hanoi.1.prop1-func-interl.c [2025-03-03 17:37:02,220 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 17:37:02,222 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.hanoi.1.prop1-func-interl.c that has 1 procedures, 1538 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 17:37:02,306 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 17:37:02,316 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;@33ef9c87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 17:37:02,316 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 17:37:02,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 1538 states, 1536 states have (on average 1.5084635416666667) internal successors, (2317), 1537 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:02,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-03 17:37:02,336 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:02,337 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:02,337 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:02,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:02,343 INFO L85 PathProgramCache]: Analyzing trace with hash 628463703, now seen corresponding path program 1 times [2025-03-03 17:37:02,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:02,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501808731] [2025-03-03 17:37:02,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:02,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:02,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-03 17:37:02,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-03 17:37:02,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:02,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:02,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:02,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:02,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501808731] [2025-03-03 17:37:02,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501808731] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:02,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:02,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:02,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455778709] [2025-03-03 17:37:02,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:02,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:02,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:03,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:03,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:03,012 INFO L87 Difference]: Start difference. First operand has 1538 states, 1536 states have (on average 1.5084635416666667) internal successors, (2317), 1537 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:03,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:03,745 INFO L93 Difference]: Finished difference Result 2923 states and 4408 transitions. [2025-03-03 17:37:03,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:03,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2025-03-03 17:37:03,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:03,766 INFO L225 Difference]: With dead ends: 2923 [2025-03-03 17:37:03,766 INFO L226 Difference]: Without dead ends: 1535 [2025-03-03 17:37:03,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:03,773 INFO L435 NwaCegarLoop]: 1924 mSDtfsCounter, 2227 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2227 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:03,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2227 Valid, 3846 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 17:37:03,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2025-03-03 17:37:03,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1535. [2025-03-03 17:37:03,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 1.5071707953063884) internal successors, (2312), 1534 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:03,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2312 transitions. [2025-03-03 17:37:03,868 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2312 transitions. Word has length 101 [2025-03-03 17:37:03,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:03,870 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 2312 transitions. [2025-03-03 17:37:03,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:03,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2312 transitions. [2025-03-03 17:37:03,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-03 17:37:03,874 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:03,874 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:03,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 17:37:03,875 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:03,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:03,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1329159761, now seen corresponding path program 1 times [2025-03-03 17:37:03,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:03,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232744348] [2025-03-03 17:37:03,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:03,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:03,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-03 17:37:03,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-03 17:37:03,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:03,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:04,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:04,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:04,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232744348] [2025-03-03 17:37:04,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232744348] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:04,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:04,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:04,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022346782] [2025-03-03 17:37:04,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:04,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:04,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:04,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:04,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:04,331 INFO L87 Difference]: Start difference. First operand 1535 states and 2312 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:04,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:04,983 INFO L93 Difference]: Finished difference Result 1539 states and 2316 transitions. [2025-03-03 17:37:04,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:04,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2025-03-03 17:37:04,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:04,989 INFO L225 Difference]: With dead ends: 1539 [2025-03-03 17:37:04,989 INFO L226 Difference]: Without dead ends: 1537 [2025-03-03 17:37:04,990 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 [2025-03-03 17:37:04,990 INFO L435 NwaCegarLoop]: 1935 mSDtfsCounter, 0 mSDsluCounter, 3865 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5800 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:04,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5800 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 17:37:04,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2025-03-03 17:37:05,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1537. [2025-03-03 17:37:05,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1536 states have (on average 1.5065104166666667) internal successors, (2314), 1536 states have internal predecessors, (2314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:05,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2314 transitions. [2025-03-03 17:37:05,025 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2314 transitions. Word has length 102 [2025-03-03 17:37:05,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:05,025 INFO L471 AbstractCegarLoop]: Abstraction has 1537 states and 2314 transitions. [2025-03-03 17:37:05,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:05,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2314 transitions. [2025-03-03 17:37:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-03 17:37:05,029 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:05,030 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:05,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 17:37:05,030 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:05,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:05,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1750401857, now seen corresponding path program 1 times [2025-03-03 17:37:05,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:05,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077889398] [2025-03-03 17:37:05,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:05,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:05,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-03 17:37:05,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-03 17:37:05,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:05,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:05,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:05,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:05,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077889398] [2025-03-03 17:37:05,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077889398] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:05,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:05,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:05,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021323120] [2025-03-03 17:37:05,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:05,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:05,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:05,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:05,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:05,226 INFO L87 Difference]: Start difference. First operand 1537 states and 2314 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:05,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:05,805 INFO L93 Difference]: Finished difference Result 2926 states and 4407 transitions. [2025-03-03 17:37:05,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:05,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2025-03-03 17:37:05,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:05,812 INFO L225 Difference]: With dead ends: 2926 [2025-03-03 17:37:05,813 INFO L226 Difference]: Without dead ends: 1539 [2025-03-03 17:37:05,815 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 [2025-03-03 17:37:05,816 INFO L435 NwaCegarLoop]: 1935 mSDtfsCounter, 0 mSDsluCounter, 3862 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5797 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:05,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5797 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 17:37:05,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2025-03-03 17:37:05,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1539. [2025-03-03 17:37:05,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1538 states have (on average 1.505851755526658) internal successors, (2316), 1538 states have internal predecessors, (2316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 2316 transitions. [2025-03-03 17:37:05,843 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 2316 transitions. Word has length 103 [2025-03-03 17:37:05,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:05,844 INFO L471 AbstractCegarLoop]: Abstraction has 1539 states and 2316 transitions. [2025-03-03 17:37:05,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:05,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 2316 transitions. [2025-03-03 17:37:05,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 17:37:05,847 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:05,847 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:05,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 17:37:05,847 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:05,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:05,848 INFO L85 PathProgramCache]: Analyzing trace with hash 359394282, now seen corresponding path program 1 times [2025-03-03 17:37:05,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:05,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976167798] [2025-03-03 17:37:05,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:05,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:05,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 17:37:05,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 17:37:05,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:05,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:06,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:06,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:06,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976167798] [2025-03-03 17:37:06,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976167798] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:06,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:06,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 17:37:06,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237613485] [2025-03-03 17:37:06,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:06,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:37:06,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:06,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:37:06,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:37:06,223 INFO L87 Difference]: Start difference. First operand 1539 states and 2316 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:07,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:07,283 INFO L93 Difference]: Finished difference Result 2932 states and 4414 transitions. [2025-03-03 17:37:07,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:37:07,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2025-03-03 17:37:07,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:07,289 INFO L225 Difference]: With dead ends: 2932 [2025-03-03 17:37:07,289 INFO L226 Difference]: Without dead ends: 1543 [2025-03-03 17:37:07,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:37:07,291 INFO L435 NwaCegarLoop]: 1789 mSDtfsCounter, 2227 mSDsluCounter, 5347 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2227 SdHoareTripleChecker+Valid, 7136 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:07,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2227 Valid, 7136 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-03 17:37:07,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2025-03-03 17:37:07,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1541. [2025-03-03 17:37:07,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1540 states have (on average 1.5051948051948052) internal successors, (2318), 1540 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:07,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2318 transitions. [2025-03-03 17:37:07,315 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2318 transitions. Word has length 104 [2025-03-03 17:37:07,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:07,316 INFO L471 AbstractCegarLoop]: Abstraction has 1541 states and 2318 transitions. [2025-03-03 17:37:07,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:07,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2318 transitions. [2025-03-03 17:37:07,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-03 17:37:07,318 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:07,318 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:07,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 17:37:07,318 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:07,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:07,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1360971601, now seen corresponding path program 1 times [2025-03-03 17:37:07,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:07,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872000831] [2025-03-03 17:37:07,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:07,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:07,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-03 17:37:07,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-03 17:37:07,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:07,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:07,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:07,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:07,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872000831] [2025-03-03 17:37:07,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872000831] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:07,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:07,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 17:37:07,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753516401] [2025-03-03 17:37:07,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:07,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 17:37:07,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:07,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 17:37:07,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:07,568 INFO L87 Difference]: Start difference. First operand 1541 states and 2318 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:08,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:08,225 INFO L93 Difference]: Finished difference Result 2959 states and 4452 transitions. [2025-03-03 17:37:08,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 17:37:08,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2025-03-03 17:37:08,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:08,230 INFO L225 Difference]: With dead ends: 2959 [2025-03-03 17:37:08,230 INFO L226 Difference]: Without dead ends: 1568 [2025-03-03 17:37:08,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:08,233 INFO L435 NwaCegarLoop]: 1934 mSDtfsCounter, 172 mSDsluCounter, 5610 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 7544 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:08,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 7544 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 17:37:08,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2025-03-03 17:37:08,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1568. [2025-03-03 17:37:08,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 1.5041480536056158) internal successors, (2357), 1567 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:08,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2357 transitions. [2025-03-03 17:37:08,258 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2357 transitions. Word has length 105 [2025-03-03 17:37:08,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:08,258 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 2357 transitions. [2025-03-03 17:37:08,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2357 transitions. [2025-03-03 17:37:08,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-03 17:37:08,259 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:08,259 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:08,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 17:37:08,259 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:08,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:08,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1630365547, now seen corresponding path program 1 times [2025-03-03 17:37:08,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:08,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632155027] [2025-03-03 17:37:08,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:08,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:08,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-03 17:37:08,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-03 17:37:08,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:08,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:08,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:08,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:08,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632155027] [2025-03-03 17:37:08,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632155027] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:08,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:08,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 17:37:08,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306891027] [2025-03-03 17:37:08,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:08,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 17:37:08,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:08,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 17:37:08,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:08,428 INFO L87 Difference]: Start difference. First operand 1568 states and 2357 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:09,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:09,104 INFO L93 Difference]: Finished difference Result 2961 states and 4454 transitions. [2025-03-03 17:37:09,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:09,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2025-03-03 17:37:09,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:09,110 INFO L225 Difference]: With dead ends: 2961 [2025-03-03 17:37:09,110 INFO L226 Difference]: Without dead ends: 1570 [2025-03-03 17:37:09,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:09,113 INFO L435 NwaCegarLoop]: 1935 mSDtfsCounter, 0 mSDsluCounter, 5782 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7717 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:09,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7717 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 17:37:09,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2025-03-03 17:37:09,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1570. [2025-03-03 17:37:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 1.5035054174633524) internal successors, (2359), 1569 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:09,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2359 transitions. [2025-03-03 17:37:09,136 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2359 transitions. Word has length 105 [2025-03-03 17:37:09,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:09,136 INFO L471 AbstractCegarLoop]: Abstraction has 1570 states and 2359 transitions. [2025-03-03 17:37:09,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:09,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2359 transitions. [2025-03-03 17:37:09,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-03 17:37:09,137 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:09,137 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:09,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 17:37:09,138 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:09,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:09,138 INFO L85 PathProgramCache]: Analyzing trace with hash 890089253, now seen corresponding path program 1 times [2025-03-03 17:37:09,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:09,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461838340] [2025-03-03 17:37:09,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:09,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:09,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-03 17:37:09,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-03 17:37:09,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:09,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:09,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:09,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461838340] [2025-03-03 17:37:09,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461838340] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:09,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:09,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 17:37:09,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516017081] [2025-03-03 17:37:09,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:09,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:37:09,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:09,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:37:09,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:37:09,581 INFO L87 Difference]: Start difference. First operand 1570 states and 2359 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:10,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:10,568 INFO L93 Difference]: Finished difference Result 2965 states and 4458 transitions. [2025-03-03 17:37:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:37:10,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2025-03-03 17:37:10,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:10,573 INFO L225 Difference]: With dead ends: 2965 [2025-03-03 17:37:10,573 INFO L226 Difference]: Without dead ends: 1572 [2025-03-03 17:37:10,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-03 17:37:10,575 INFO L435 NwaCegarLoop]: 1779 mSDtfsCounter, 2231 mSDsluCounter, 5323 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2231 SdHoareTripleChecker+Valid, 7102 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:10,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2231 Valid, 7102 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-03 17:37:10,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2025-03-03 17:37:10,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1571. [2025-03-03 17:37:10,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 1.5031847133757963) internal successors, (2360), 1570 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2360 transitions. [2025-03-03 17:37:10,596 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2360 transitions. Word has length 106 [2025-03-03 17:37:10,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:10,596 INFO L471 AbstractCegarLoop]: Abstraction has 1571 states and 2360 transitions. [2025-03-03 17:37:10,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2360 transitions. [2025-03-03 17:37:10,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-03 17:37:10,598 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:10,598 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:10,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 17:37:10,598 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:10,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:10,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1450666602, now seen corresponding path program 1 times [2025-03-03 17:37:10,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:10,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964439565] [2025-03-03 17:37:10,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:10,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:10,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-03 17:37:10,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-03 17:37:10,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:10,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:10,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:10,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964439565] [2025-03-03 17:37:10,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964439565] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:10,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:10,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 17:37:10,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473343597] [2025-03-03 17:37:10,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:10,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 17:37:10,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:10,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 17:37:10,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:10,824 INFO L87 Difference]: Start difference. First operand 1571 states and 2360 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:12,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:12,599 INFO L93 Difference]: Finished difference Result 4313 states and 6486 transitions. [2025-03-03 17:37:12,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 17:37:12,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2025-03-03 17:37:12,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:12,607 INFO L225 Difference]: With dead ends: 4313 [2025-03-03 17:37:12,607 INFO L226 Difference]: Without dead ends: 2919 [2025-03-03 17:37:12,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:37:12,609 INFO L435 NwaCegarLoop]: 1344 mSDtfsCounter, 2191 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 3846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:12,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 5180 Invalid, 3846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-03 17:37:12,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2025-03-03 17:37:12,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 1578. [2025-03-03 17:37:12,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 1.5009511731135066) internal successors, (2367), 1577 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:12,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2367 transitions. [2025-03-03 17:37:12,636 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2367 transitions. Word has length 107 [2025-03-03 17:37:12,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:12,637 INFO L471 AbstractCegarLoop]: Abstraction has 1578 states and 2367 transitions. [2025-03-03 17:37:12,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:12,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2367 transitions. [2025-03-03 17:37:12,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-03 17:37:12,637 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:12,637 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:12,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 17:37:12,638 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:12,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:12,638 INFO L85 PathProgramCache]: Analyzing trace with hash 674765449, now seen corresponding path program 1 times [2025-03-03 17:37:12,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:12,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231368638] [2025-03-03 17:37:12,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:12,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:12,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-03 17:37:12,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-03 17:37:12,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:12,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:13,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:13,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:13,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231368638] [2025-03-03 17:37:13,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231368638] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:13,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:13,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 17:37:13,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915159458] [2025-03-03 17:37:13,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:13,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 17:37:13,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:13,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 17:37:13,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 17:37:13,121 INFO L87 Difference]: Start difference. First operand 1578 states and 2367 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:14,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:14,490 INFO L93 Difference]: Finished difference Result 4024 states and 6051 transitions. [2025-03-03 17:37:14,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 17:37:14,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2025-03-03 17:37:14,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:14,496 INFO L225 Difference]: With dead ends: 4024 [2025-03-03 17:37:14,496 INFO L226 Difference]: Without dead ends: 2630 [2025-03-03 17:37:14,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-03-03 17:37:14,498 INFO L435 NwaCegarLoop]: 1907 mSDtfsCounter, 5398 mSDsluCounter, 11424 mSDsCounter, 0 mSdLazyCounter, 2848 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5398 SdHoareTripleChecker+Valid, 13331 SdHoareTripleChecker+Invalid, 2850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:14,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5398 Valid, 13331 Invalid, 2850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2848 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-03 17:37:14,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2025-03-03 17:37:14,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 1583. [2025-03-03 17:37:14,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 1.5006321112515804) internal successors, (2374), 1582 states have internal predecessors, (2374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:14,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2374 transitions. [2025-03-03 17:37:14,523 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2374 transitions. Word has length 108 [2025-03-03 17:37:14,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:14,524 INFO L471 AbstractCegarLoop]: Abstraction has 1583 states and 2374 transitions. [2025-03-03 17:37:14,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:14,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2374 transitions. [2025-03-03 17:37:14,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2025-03-03 17:37:14,538 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:14,539 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:14,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 17:37:14,540 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:14,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:14,543 INFO L85 PathProgramCache]: Analyzing trace with hash 903884225, now seen corresponding path program 1 times [2025-03-03 17:37:14,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:14,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849187505] [2025-03-03 17:37:14,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:14,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:14,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 791 statements into 1 equivalence classes. [2025-03-03 17:37:15,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 791 of 791 statements. [2025-03-03 17:37:15,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:15,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:16,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:16,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849187505] [2025-03-03 17:37:16,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849187505] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:16,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:16,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:16,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283905553] [2025-03-03 17:37:16,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:16,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:16,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:16,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:16,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:16,138 INFO L87 Difference]: Start difference. First operand 1583 states and 2374 transitions. Second operand has 4 states, 4 states have (on average 197.75) internal successors, (791), 4 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:16,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:16,605 INFO L93 Difference]: Finished difference Result 2982 states and 4478 transitions. [2025-03-03 17:37:16,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:16,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 197.75) internal successors, (791), 4 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 791 [2025-03-03 17:37:16,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:16,610 INFO L225 Difference]: With dead ends: 2982 [2025-03-03 17:37:16,610 INFO L226 Difference]: Without dead ends: 1583 [2025-03-03 17:37:16,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:16,612 INFO L435 NwaCegarLoop]: 1930 mSDtfsCounter, 2209 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:16,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 3858 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:37:16,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2025-03-03 17:37:16,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1583. [2025-03-03 17:37:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 1.5) internal successors, (2373), 1582 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:16,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2373 transitions. [2025-03-03 17:37:16,633 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2373 transitions. Word has length 791 [2025-03-03 17:37:16,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:16,633 INFO L471 AbstractCegarLoop]: Abstraction has 1583 states and 2373 transitions. [2025-03-03 17:37:16,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 197.75) internal successors, (791), 4 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:16,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2373 transitions. [2025-03-03 17:37:16,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2025-03-03 17:37:16,648 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:16,649 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:16,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 17:37:16,649 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:16,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:16,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1078472465, now seen corresponding path program 1 times [2025-03-03 17:37:16,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:16,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664989323] [2025-03-03 17:37:16,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:16,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:16,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 792 statements into 1 equivalence classes. [2025-03-03 17:37:17,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 792 of 792 statements. [2025-03-03 17:37:17,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:17,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:18,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:18,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664989323] [2025-03-03 17:37:18,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664989323] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:18,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:18,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 17:37:18,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696923126] [2025-03-03 17:37:18,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:18,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:37:18,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:18,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:37:18,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:37:18,612 INFO L87 Difference]: Start difference. First operand 1583 states and 2373 transitions. Second operand has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:19,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:19,698 INFO L93 Difference]: Finished difference Result 2986 states and 4482 transitions. [2025-03-03 17:37:19,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:37:19,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 792 [2025-03-03 17:37:19,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:19,703 INFO L225 Difference]: With dead ends: 2986 [2025-03-03 17:37:19,703 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:19,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:37:19,706 INFO L435 NwaCegarLoop]: 1788 mSDtfsCounter, 2301 mSDsluCounter, 5343 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 7131 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:19,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 7131 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-03 17:37:19,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:19,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1585. [2025-03-03 17:37:19,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 1.4993686868686869) internal successors, (2375), 1584 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2375 transitions. [2025-03-03 17:37:19,730 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2375 transitions. Word has length 792 [2025-03-03 17:37:19,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:19,731 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2375 transitions. [2025-03-03 17:37:19,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2375 transitions. [2025-03-03 17:37:19,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2025-03-03 17:37:19,741 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:19,743 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:19,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 17:37:19,743 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:19,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:19,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2104362120, now seen corresponding path program 1 times [2025-03-03 17:37:19,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:19,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080998219] [2025-03-03 17:37:19,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:19,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:19,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 793 statements into 1 equivalence classes. [2025-03-03 17:37:20,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 793 of 793 statements. [2025-03-03 17:37:20,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:20,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:20,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:20,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080998219] [2025-03-03 17:37:20,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080998219] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:20,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:20,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:20,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073782265] [2025-03-03 17:37:20,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:20,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:20,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:20,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:20,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:20,847 INFO L87 Difference]: Start difference. First operand 1585 states and 2375 transitions. Second operand has 4 states, 4 states have (on average 198.25) internal successors, (793), 4 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:21,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:21,302 INFO L93 Difference]: Finished difference Result 2986 states and 4480 transitions. [2025-03-03 17:37:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:21,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 198.25) internal successors, (793), 4 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 793 [2025-03-03 17:37:21,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:21,306 INFO L225 Difference]: With dead ends: 2986 [2025-03-03 17:37:21,307 INFO L226 Difference]: Without dead ends: 1585 [2025-03-03 17:37:21,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:21,308 INFO L435 NwaCegarLoop]: 1925 mSDtfsCounter, 2194 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2194 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:21,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2194 Valid, 3848 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:37:21,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2025-03-03 17:37:21,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2025-03-03 17:37:21,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 1.4987373737373737) internal successors, (2374), 1584 states have internal predecessors, (2374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:21,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2374 transitions. [2025-03-03 17:37:21,332 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2374 transitions. Word has length 793 [2025-03-03 17:37:21,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:21,333 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2374 transitions. [2025-03-03 17:37:21,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 198.25) internal successors, (793), 4 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:21,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2374 transitions. [2025-03-03 17:37:21,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2025-03-03 17:37:21,343 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:21,343 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:21,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 17:37:21,343 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:21,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:21,345 INFO L85 PathProgramCache]: Analyzing trace with hash -344922072, now seen corresponding path program 1 times [2025-03-03 17:37:21,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:21,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265505340] [2025-03-03 17:37:21,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:21,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:21,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 794 statements into 1 equivalence classes. [2025-03-03 17:37:21,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 794 of 794 statements. [2025-03-03 17:37:21,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:21,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:22,706 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:22,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:22,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265505340] [2025-03-03 17:37:22,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265505340] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:22,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:22,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:22,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8926970] [2025-03-03 17:37:22,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:22,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:22,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:22,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:22,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:22,709 INFO L87 Difference]: Start difference. First operand 1585 states and 2374 transitions. Second operand has 4 states, 4 states have (on average 198.5) internal successors, (794), 4 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:23,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:23,181 INFO L93 Difference]: Finished difference Result 2986 states and 4478 transitions. [2025-03-03 17:37:23,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:23,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 198.5) internal successors, (794), 4 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 794 [2025-03-03 17:37:23,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:23,186 INFO L225 Difference]: With dead ends: 2986 [2025-03-03 17:37:23,187 INFO L226 Difference]: Without dead ends: 1585 [2025-03-03 17:37:23,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:23,189 INFO L435 NwaCegarLoop]: 1921 mSDtfsCounter, 2184 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:23,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 3840 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:37:23,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2025-03-03 17:37:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2025-03-03 17:37:23,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 1.4981060606060606) internal successors, (2373), 1584 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:23,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2373 transitions. [2025-03-03 17:37:23,206 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2373 transitions. Word has length 794 [2025-03-03 17:37:23,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:23,206 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2373 transitions. [2025-03-03 17:37:23,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 198.5) internal successors, (794), 4 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:23,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2373 transitions. [2025-03-03 17:37:23,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2025-03-03 17:37:23,212 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:23,212 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:23,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 17:37:23,213 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:23,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1993166558, now seen corresponding path program 1 times [2025-03-03 17:37:23,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:23,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130474710] [2025-03-03 17:37:23,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:23,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:23,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 795 statements into 1 equivalence classes. [2025-03-03 17:37:23,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 795 of 795 statements. [2025-03-03 17:37:23,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:23,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:24,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:24,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130474710] [2025-03-03 17:37:24,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130474710] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:24,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:24,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 17:37:24,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808719378] [2025-03-03 17:37:24,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:24,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:37:24,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:24,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:37:24,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:37:24,698 INFO L87 Difference]: Start difference. First operand 1585 states and 2373 transitions. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:25,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:25,505 INFO L93 Difference]: Finished difference Result 2990 states and 4482 transitions. [2025-03-03 17:37:25,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:37:25,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 795 [2025-03-03 17:37:25,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:25,512 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:25,512 INFO L226 Difference]: Without dead ends: 1589 [2025-03-03 17:37:25,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:37:25,514 INFO L435 NwaCegarLoop]: 1786 mSDtfsCounter, 2274 mSDsluCounter, 5339 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 7125 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:25,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2274 Valid, 7125 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-03 17:37:25,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2025-03-03 17:37:25,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1587. [2025-03-03 17:37:25,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4974779319041613) internal successors, (2375), 1586 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:25,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2375 transitions. [2025-03-03 17:37:25,559 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2375 transitions. Word has length 795 [2025-03-03 17:37:25,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:25,560 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2375 transitions. [2025-03-03 17:37:25,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:25,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2375 transitions. [2025-03-03 17:37:25,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2025-03-03 17:37:25,565 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:25,565 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:25,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 17:37:25,565 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:25,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:25,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1462679919, now seen corresponding path program 1 times [2025-03-03 17:37:25,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:25,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580609883] [2025-03-03 17:37:25,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:25,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:25,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 796 statements into 1 equivalence classes. [2025-03-03 17:37:25,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 796 of 796 statements. [2025-03-03 17:37:25,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:25,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:26,356 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:26,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:26,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580609883] [2025-03-03 17:37:26,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580609883] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:26,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:26,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:26,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902164735] [2025-03-03 17:37:26,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:26,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:26,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:26,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:26,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:26,359 INFO L87 Difference]: Start difference. First operand 1587 states and 2375 transitions. Second operand has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:26,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:26,726 INFO L93 Difference]: Finished difference Result 2990 states and 4480 transitions. [2025-03-03 17:37:26,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:26,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 796 [2025-03-03 17:37:26,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:26,729 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:26,729 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:26,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:26,731 INFO L435 NwaCegarLoop]: 1923 mSDtfsCounter, 2173 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2173 SdHoareTripleChecker+Valid, 3844 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:26,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2173 Valid, 3844 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:26,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:26,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:26,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4968474148802018) internal successors, (2374), 1586 states have internal predecessors, (2374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:26,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2374 transitions. [2025-03-03 17:37:26,747 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2374 transitions. Word has length 796 [2025-03-03 17:37:26,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:26,747 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2374 transitions. [2025-03-03 17:37:26,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:26,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2374 transitions. [2025-03-03 17:37:26,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2025-03-03 17:37:26,752 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:26,752 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:26,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-03 17:37:26,753 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:26,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:26,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1629172429, now seen corresponding path program 1 times [2025-03-03 17:37:26,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:26,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18698510] [2025-03-03 17:37:26,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:26,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:26,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 797 statements into 1 equivalence classes. [2025-03-03 17:37:27,064 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 797 of 797 statements. [2025-03-03 17:37:27,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:27,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:27,569 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:27,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:27,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18698510] [2025-03-03 17:37:27,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18698510] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:27,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:27,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:27,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817032827] [2025-03-03 17:37:27,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:27,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:27,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:27,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:27,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:27,573 INFO L87 Difference]: Start difference. First operand 1587 states and 2374 transitions. Second operand has 4 states, 4 states have (on average 199.25) internal successors, (797), 4 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:27,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:27,946 INFO L93 Difference]: Finished difference Result 2990 states and 4478 transitions. [2025-03-03 17:37:27,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:27,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 199.25) internal successors, (797), 4 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 797 [2025-03-03 17:37:27,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:27,950 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:27,950 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:27,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:27,952 INFO L435 NwaCegarLoop]: 1922 mSDtfsCounter, 2155 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 3842 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:27,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 3842 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:27,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:27,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.496216897856242) internal successors, (2373), 1586 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:27,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2373 transitions. [2025-03-03 17:37:27,965 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2373 transitions. Word has length 797 [2025-03-03 17:37:27,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:27,965 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2373 transitions. [2025-03-03 17:37:27,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 199.25) internal successors, (797), 4 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:27,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2373 transitions. [2025-03-03 17:37:27,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2025-03-03 17:37:27,970 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:27,971 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:27,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-03 17:37:27,971 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:27,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:27,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2026807833, now seen corresponding path program 1 times [2025-03-03 17:37:27,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:27,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113837579] [2025-03-03 17:37:27,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:27,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:28,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 798 statements into 1 equivalence classes. [2025-03-03 17:37:28,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 798 of 798 statements. [2025-03-03 17:37:28,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:28,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:28,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:28,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113837579] [2025-03-03 17:37:28,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113837579] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:28,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:28,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:28,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426046144] [2025-03-03 17:37:28,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:28,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:28,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:28,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:28,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:28,772 INFO L87 Difference]: Start difference. First operand 1587 states and 2373 transitions. Second operand has 4 states, 4 states have (on average 199.5) internal successors, (798), 4 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:29,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:29,130 INFO L93 Difference]: Finished difference Result 2990 states and 4476 transitions. [2025-03-03 17:37:29,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:29,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 199.5) internal successors, (798), 4 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 798 [2025-03-03 17:37:29,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:29,133 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:29,133 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:29,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:29,135 INFO L435 NwaCegarLoop]: 1921 mSDtfsCounter, 2151 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:29,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 3840 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:29,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:29,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:29,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4955863808322825) internal successors, (2372), 1586 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:29,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2372 transitions. [2025-03-03 17:37:29,146 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2372 transitions. Word has length 798 [2025-03-03 17:37:29,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:29,147 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2372 transitions. [2025-03-03 17:37:29,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 199.5) internal successors, (798), 4 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:29,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2372 transitions. [2025-03-03 17:37:29,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2025-03-03 17:37:29,151 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:29,151 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:29,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-03 17:37:29,152 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:29,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:29,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1800504364, now seen corresponding path program 1 times [2025-03-03 17:37:29,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:29,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145146909] [2025-03-03 17:37:29,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:29,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:29,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 799 statements into 1 equivalence classes. [2025-03-03 17:37:29,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 799 of 799 statements. [2025-03-03 17:37:29,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:29,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:29,923 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:29,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:29,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145146909] [2025-03-03 17:37:29,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145146909] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:29,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:29,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:29,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234645750] [2025-03-03 17:37:29,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:29,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:29,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:29,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:29,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:29,926 INFO L87 Difference]: Start difference. First operand 1587 states and 2372 transitions. Second operand has 4 states, 4 states have (on average 199.75) internal successors, (799), 4 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:30,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:30,278 INFO L93 Difference]: Finished difference Result 2990 states and 4474 transitions. [2025-03-03 17:37:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:30,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 199.75) internal successors, (799), 4 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 799 [2025-03-03 17:37:30,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:30,281 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:30,281 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:30,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:30,282 INFO L435 NwaCegarLoop]: 1921 mSDtfsCounter, 2131 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2131 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:30,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2131 Valid, 3840 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:30,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:30,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:30,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.494955863808323) internal successors, (2371), 1586 states have internal predecessors, (2371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:30,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2371 transitions. [2025-03-03 17:37:30,293 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2371 transitions. Word has length 799 [2025-03-03 17:37:30,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:30,294 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2371 transitions. [2025-03-03 17:37:30,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 199.75) internal successors, (799), 4 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:30,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2371 transitions. [2025-03-03 17:37:30,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2025-03-03 17:37:30,298 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:30,299 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:30,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-03 17:37:30,299 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:30,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:30,300 INFO L85 PathProgramCache]: Analyzing trace with hash 513324008, now seen corresponding path program 1 times [2025-03-03 17:37:30,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:30,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464323776] [2025-03-03 17:37:30,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:30,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:30,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 800 statements into 1 equivalence classes. [2025-03-03 17:37:30,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 800 of 800 statements. [2025-03-03 17:37:30,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:30,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:31,275 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:31,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:31,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464323776] [2025-03-03 17:37:31,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464323776] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:31,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:31,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:31,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443264109] [2025-03-03 17:37:31,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:31,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:31,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:31,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:31,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:31,278 INFO L87 Difference]: Start difference. First operand 1587 states and 2371 transitions. Second operand has 4 states, 4 states have (on average 200.0) internal successors, (800), 4 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:31,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:31,765 INFO L93 Difference]: Finished difference Result 2990 states and 4472 transitions. [2025-03-03 17:37:31,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:31,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 200.0) internal successors, (800), 4 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 800 [2025-03-03 17:37:31,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:31,768 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:31,768 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:31,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:31,770 INFO L435 NwaCegarLoop]: 1920 mSDtfsCounter, 2127 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 3838 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:31,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 3838 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 17:37:31,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:31,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:31,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4943253467843631) internal successors, (2370), 1586 states have internal predecessors, (2370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:31,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2370 transitions. [2025-03-03 17:37:31,787 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2370 transitions. Word has length 800 [2025-03-03 17:37:31,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:31,787 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2370 transitions. [2025-03-03 17:37:31,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 200.0) internal successors, (800), 4 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2370 transitions. [2025-03-03 17:37:31,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2025-03-03 17:37:31,792 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:31,792 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:31,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-03 17:37:31,792 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:31,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:31,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1139103909, now seen corresponding path program 1 times [2025-03-03 17:37:31,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:31,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119268947] [2025-03-03 17:37:31,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:31,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:31,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 801 statements into 1 equivalence classes. [2025-03-03 17:37:32,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 801 of 801 statements. [2025-03-03 17:37:32,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:32,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:32,621 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:32,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:32,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119268947] [2025-03-03 17:37:32,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119268947] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:32,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:32,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:32,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095862058] [2025-03-03 17:37:32,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:32,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:32,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:32,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:32,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:32,624 INFO L87 Difference]: Start difference. First operand 1587 states and 2370 transitions. Second operand has 4 states, 4 states have (on average 200.25) internal successors, (801), 4 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:32,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:32,987 INFO L93 Difference]: Finished difference Result 2990 states and 4470 transitions. [2025-03-03 17:37:32,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:32,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 200.25) internal successors, (801), 4 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 801 [2025-03-03 17:37:32,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:32,989 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:32,989 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:32,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:32,991 INFO L435 NwaCegarLoop]: 1919 mSDtfsCounter, 2107 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:32,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2107 Valid, 3836 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:32,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4936948297604036) internal successors, (2369), 1586 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:33,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2369 transitions. [2025-03-03 17:37:33,001 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2369 transitions. Word has length 801 [2025-03-03 17:37:33,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:33,002 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2369 transitions. [2025-03-03 17:37:33,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 200.25) internal successors, (801), 4 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2369 transitions. [2025-03-03 17:37:33,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2025-03-03 17:37:33,005 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:33,006 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:33,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-03 17:37:33,006 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:33,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:33,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2081273289, now seen corresponding path program 1 times [2025-03-03 17:37:33,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:33,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148060859] [2025-03-03 17:37:33,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:33,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:33,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 802 statements into 1 equivalence classes. [2025-03-03 17:37:33,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 802 of 802 statements. [2025-03-03 17:37:33,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:33,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:33,765 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:33,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:33,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148060859] [2025-03-03 17:37:33,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148060859] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:33,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:33,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:33,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080467397] [2025-03-03 17:37:33,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:33,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:33,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:33,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:33,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:33,767 INFO L87 Difference]: Start difference. First operand 1587 states and 2369 transitions. Second operand has 4 states, 4 states have (on average 200.5) internal successors, (802), 4 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:34,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:34,115 INFO L93 Difference]: Finished difference Result 2990 states and 4468 transitions. [2025-03-03 17:37:34,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:34,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 200.5) internal successors, (802), 4 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 802 [2025-03-03 17:37:34,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:34,118 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:34,118 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:34,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:34,119 INFO L435 NwaCegarLoop]: 1918 mSDtfsCounter, 2103 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 3834 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:34,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2103 Valid, 3834 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:34,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:34,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:34,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4930643127364438) internal successors, (2368), 1586 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2368 transitions. [2025-03-03 17:37:34,130 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2368 transitions. Word has length 802 [2025-03-03 17:37:34,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:34,131 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2368 transitions. [2025-03-03 17:37:34,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 200.5) internal successors, (802), 4 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2368 transitions. [2025-03-03 17:37:34,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2025-03-03 17:37:34,135 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:34,135 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:34,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-03 17:37:34,136 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:34,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:34,136 INFO L85 PathProgramCache]: Analyzing trace with hash -707283614, now seen corresponding path program 1 times [2025-03-03 17:37:34,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:34,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205320068] [2025-03-03 17:37:34,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:34,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:34,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 803 statements into 1 equivalence classes. [2025-03-03 17:37:34,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 803 of 803 statements. [2025-03-03 17:37:34,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:34,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:34,913 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:34,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:34,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205320068] [2025-03-03 17:37:34,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205320068] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:34,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:34,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:34,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170009007] [2025-03-03 17:37:34,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:34,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:34,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:34,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:34,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:34,915 INFO L87 Difference]: Start difference. First operand 1587 states and 2368 transitions. Second operand has 4 states, 4 states have (on average 200.75) internal successors, (803), 4 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:35,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:35,276 INFO L93 Difference]: Finished difference Result 2990 states and 4466 transitions. [2025-03-03 17:37:35,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:35,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 200.75) internal successors, (803), 4 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 803 [2025-03-03 17:37:35,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:35,281 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:35,281 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:35,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:35,283 INFO L435 NwaCegarLoop]: 1917 mSDtfsCounter, 2083 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:35,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2083 Valid, 3832 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:35,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:35,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4924337957124842) internal successors, (2367), 1586 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2367 transitions. [2025-03-03 17:37:35,294 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2367 transitions. Word has length 803 [2025-03-03 17:37:35,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:35,295 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2367 transitions. [2025-03-03 17:37:35,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 200.75) internal successors, (803), 4 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:35,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2367 transitions. [2025-03-03 17:37:35,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2025-03-03 17:37:35,299 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:35,299 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:35,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-03 17:37:35,299 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:35,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:35,300 INFO L85 PathProgramCache]: Analyzing trace with hash 555017478, now seen corresponding path program 1 times [2025-03-03 17:37:35,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:35,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143290253] [2025-03-03 17:37:35,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:35,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:35,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 804 statements into 1 equivalence classes. [2025-03-03 17:37:35,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 804 of 804 statements. [2025-03-03 17:37:35,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:35,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:36,111 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:36,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:36,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143290253] [2025-03-03 17:37:36,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143290253] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:36,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:36,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:36,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576973257] [2025-03-03 17:37:36,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:36,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:36,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:36,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:36,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:36,113 INFO L87 Difference]: Start difference. First operand 1587 states and 2367 transitions. Second operand has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:36,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:36,480 INFO L93 Difference]: Finished difference Result 2990 states and 4464 transitions. [2025-03-03 17:37:36,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:36,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 804 [2025-03-03 17:37:36,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:36,483 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:36,483 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:36,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:36,485 INFO L435 NwaCegarLoop]: 1916 mSDtfsCounter, 2079 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2079 SdHoareTripleChecker+Valid, 3830 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:36,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2079 Valid, 3830 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:36,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:36,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4918032786885247) internal successors, (2366), 1586 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:36,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2366 transitions. [2025-03-03 17:37:36,497 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2366 transitions. Word has length 804 [2025-03-03 17:37:36,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:36,497 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2366 transitions. [2025-03-03 17:37:36,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2366 transitions. [2025-03-03 17:37:36,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2025-03-03 17:37:36,502 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:36,502 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:36,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-03 17:37:36,502 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:36,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:36,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1202711, now seen corresponding path program 1 times [2025-03-03 17:37:36,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:36,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433382322] [2025-03-03 17:37:36,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:36,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:36,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 805 statements into 1 equivalence classes. [2025-03-03 17:37:36,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 805 of 805 statements. [2025-03-03 17:37:36,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:36,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:37,266 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:37,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:37,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433382322] [2025-03-03 17:37:37,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433382322] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:37,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:37,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:37,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741940356] [2025-03-03 17:37:37,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:37,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:37,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:37,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:37,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:37,268 INFO L87 Difference]: Start difference. First operand 1587 states and 2366 transitions. Second operand has 4 states, 4 states have (on average 201.25) internal successors, (805), 4 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:37,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:37,649 INFO L93 Difference]: Finished difference Result 2990 states and 4462 transitions. [2025-03-03 17:37:37,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:37,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 201.25) internal successors, (805), 4 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 805 [2025-03-03 17:37:37,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:37,652 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:37,652 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:37,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:37,653 INFO L435 NwaCegarLoop]: 1915 mSDtfsCounter, 2059 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 3828 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:37,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 3828 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:37:37,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:37,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:37,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.491172761664565) internal successors, (2365), 1586 states have internal predecessors, (2365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2365 transitions. [2025-03-03 17:37:37,698 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2365 transitions. Word has length 805 [2025-03-03 17:37:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:37,699 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2365 transitions. [2025-03-03 17:37:37,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.25) internal successors, (805), 4 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2365 transitions. [2025-03-03 17:37:37,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2025-03-03 17:37:37,703 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:37,703 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:37,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-03 17:37:37,703 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:37,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:37,704 INFO L85 PathProgramCache]: Analyzing trace with hash -395705259, now seen corresponding path program 1 times [2025-03-03 17:37:37,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:37,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123747477] [2025-03-03 17:37:37,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:37,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:37,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 806 statements into 1 equivalence classes. [2025-03-03 17:37:38,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 806 of 806 statements. [2025-03-03 17:37:38,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:38,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:38,648 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:38,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:38,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123747477] [2025-03-03 17:37:38,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123747477] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:38,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:38,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:38,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650352900] [2025-03-03 17:37:38,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:38,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:38,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:38,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:38,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:38,650 INFO L87 Difference]: Start difference. First operand 1587 states and 2365 transitions. Second operand has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:39,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:39,003 INFO L93 Difference]: Finished difference Result 2990 states and 4460 transitions. [2025-03-03 17:37:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:39,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 806 [2025-03-03 17:37:39,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:39,006 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:39,006 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:39,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:39,008 INFO L435 NwaCegarLoop]: 1914 mSDtfsCounter, 2055 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2055 SdHoareTripleChecker+Valid, 3826 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:39,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2055 Valid, 3826 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:39,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:39,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:39,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4905422446406054) internal successors, (2364), 1586 states have internal predecessors, (2364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:39,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2364 transitions. [2025-03-03 17:37:39,021 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2364 transitions. Word has length 806 [2025-03-03 17:37:39,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:39,021 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2364 transitions. [2025-03-03 17:37:39,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:39,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2364 transitions. [2025-03-03 17:37:39,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2025-03-03 17:37:39,025 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:39,026 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:39,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-03 17:37:39,026 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:39,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:39,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1005877488, now seen corresponding path program 1 times [2025-03-03 17:37:39,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:39,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538947639] [2025-03-03 17:37:39,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:39,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:39,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 807 statements into 1 equivalence classes. [2025-03-03 17:37:39,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 807 of 807 statements. [2025-03-03 17:37:39,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:39,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:39,842 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:39,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:39,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538947639] [2025-03-03 17:37:39,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538947639] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:39,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:39,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:39,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734105301] [2025-03-03 17:37:39,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:39,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:39,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:39,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:39,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:39,844 INFO L87 Difference]: Start difference. First operand 1587 states and 2364 transitions. Second operand has 4 states, 4 states have (on average 201.75) internal successors, (807), 4 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:40,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:40,192 INFO L93 Difference]: Finished difference Result 2990 states and 4458 transitions. [2025-03-03 17:37:40,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:40,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 201.75) internal successors, (807), 4 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 807 [2025-03-03 17:37:40,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:40,195 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:40,195 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:40,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:40,196 INFO L435 NwaCegarLoop]: 1913 mSDtfsCounter, 2035 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 3824 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:40,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 3824 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:40,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:40,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:40,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4899117276166456) internal successors, (2363), 1586 states have internal predecessors, (2363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:40,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2363 transitions. [2025-03-03 17:37:40,212 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2363 transitions. Word has length 807 [2025-03-03 17:37:40,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:40,212 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2363 transitions. [2025-03-03 17:37:40,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.75) internal successors, (807), 4 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:40,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2363 transitions. [2025-03-03 17:37:40,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2025-03-03 17:37:40,216 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:40,216 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:40,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-03 17:37:40,217 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:40,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:40,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1653286948, now seen corresponding path program 1 times [2025-03-03 17:37:40,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:40,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877231909] [2025-03-03 17:37:40,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:40,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:40,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 808 statements into 1 equivalence classes. [2025-03-03 17:37:40,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 808 of 808 statements. [2025-03-03 17:37:40,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:40,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:41,001 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:41,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:41,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877231909] [2025-03-03 17:37:41,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877231909] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:41,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:41,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:41,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62121371] [2025-03-03 17:37:41,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:41,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:41,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:41,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:41,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:41,003 INFO L87 Difference]: Start difference. First operand 1587 states and 2363 transitions. Second operand has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:41,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:41,350 INFO L93 Difference]: Finished difference Result 2990 states and 4456 transitions. [2025-03-03 17:37:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:41,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 808 [2025-03-03 17:37:41,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:41,352 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:41,352 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:41,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:41,353 INFO L435 NwaCegarLoop]: 1912 mSDtfsCounter, 2031 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 3822 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:41,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 3822 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:41,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:41,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:41,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.489281210592686) internal successors, (2362), 1586 states have internal predecessors, (2362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:41,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2362 transitions. [2025-03-03 17:37:41,365 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2362 transitions. Word has length 808 [2025-03-03 17:37:41,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:41,365 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2362 transitions. [2025-03-03 17:37:41,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:41,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2362 transitions. [2025-03-03 17:37:41,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2025-03-03 17:37:41,370 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:41,370 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:41,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-03 17:37:41,370 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:41,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:41,371 INFO L85 PathProgramCache]: Analyzing trace with hash 856960631, now seen corresponding path program 1 times [2025-03-03 17:37:41,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:41,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433479730] [2025-03-03 17:37:41,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:41,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:41,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 809 statements into 1 equivalence classes. [2025-03-03 17:37:41,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 809 of 809 statements. [2025-03-03 17:37:41,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:41,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:42,272 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:42,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:42,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433479730] [2025-03-03 17:37:42,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433479730] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:42,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:42,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:42,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513589899] [2025-03-03 17:37:42,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:42,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:42,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:42,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:42,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:42,274 INFO L87 Difference]: Start difference. First operand 1587 states and 2362 transitions. Second operand has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:42,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:42,610 INFO L93 Difference]: Finished difference Result 2990 states and 4454 transitions. [2025-03-03 17:37:42,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:42,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 809 [2025-03-03 17:37:42,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:42,613 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:42,613 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:42,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:42,614 INFO L435 NwaCegarLoop]: 1911 mSDtfsCounter, 2011 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 3820 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:42,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 3820 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:42,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:42,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:42,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4886506935687263) internal successors, (2361), 1586 states have internal predecessors, (2361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:42,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2361 transitions. [2025-03-03 17:37:42,625 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2361 transitions. Word has length 809 [2025-03-03 17:37:42,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:42,625 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2361 transitions. [2025-03-03 17:37:42,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:42,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2361 transitions. [2025-03-03 17:37:42,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2025-03-03 17:37:42,629 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:42,630 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:42,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-03 17:37:42,630 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:42,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:42,630 INFO L85 PathProgramCache]: Analyzing trace with hash -901656461, now seen corresponding path program 1 times [2025-03-03 17:37:42,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:42,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444500028] [2025-03-03 17:37:42,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:42,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:42,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 810 statements into 1 equivalence classes. [2025-03-03 17:37:42,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 810 of 810 statements. [2025-03-03 17:37:42,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:42,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:43,576 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:43,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:43,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444500028] [2025-03-03 17:37:43,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444500028] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:43,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:43,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:43,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63799996] [2025-03-03 17:37:43,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:43,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:43,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:43,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:43,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:43,578 INFO L87 Difference]: Start difference. First operand 1587 states and 2361 transitions. Second operand has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:43,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:43,911 INFO L93 Difference]: Finished difference Result 2990 states and 4452 transitions. [2025-03-03 17:37:43,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:43,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 810 [2025-03-03 17:37:43,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:43,914 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:43,914 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:43,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:43,915 INFO L435 NwaCegarLoop]: 1910 mSDtfsCounter, 2007 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:43,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 3818 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:43,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:43,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:43,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4880201765447667) internal successors, (2360), 1586 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:43,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2360 transitions. [2025-03-03 17:37:43,928 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2360 transitions. Word has length 810 [2025-03-03 17:37:43,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:43,928 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2360 transitions. [2025-03-03 17:37:43,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:43,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2360 transitions. [2025-03-03 17:37:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2025-03-03 17:37:43,932 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:43,933 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:43,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-03 17:37:43,933 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:43,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:43,934 INFO L85 PathProgramCache]: Analyzing trace with hash -100350338, now seen corresponding path program 1 times [2025-03-03 17:37:43,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:43,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995411115] [2025-03-03 17:37:43,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:43,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:44,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 811 statements into 1 equivalence classes. [2025-03-03 17:37:44,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 811 of 811 statements. [2025-03-03 17:37:44,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:44,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:44,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:44,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995411115] [2025-03-03 17:37:44,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995411115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:44,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:44,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:44,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781936407] [2025-03-03 17:37:44,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:44,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:44,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:44,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:44,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:44,807 INFO L87 Difference]: Start difference. First operand 1587 states and 2360 transitions. Second operand has 4 states, 4 states have (on average 202.75) internal successors, (811), 4 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:45,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:45,144 INFO L93 Difference]: Finished difference Result 2990 states and 4450 transitions. [2025-03-03 17:37:45,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:45,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 202.75) internal successors, (811), 4 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 811 [2025-03-03 17:37:45,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:45,146 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:45,146 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:45,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:45,147 INFO L435 NwaCegarLoop]: 1909 mSDtfsCounter, 1987 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 3816 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:45,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 3816 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:45,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:45,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:45,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4873896595208072) internal successors, (2359), 1586 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:45,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2359 transitions. [2025-03-03 17:37:45,158 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2359 transitions. Word has length 811 [2025-03-03 17:37:45,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:45,158 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2359 transitions. [2025-03-03 17:37:45,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.75) internal successors, (811), 4 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2359 transitions. [2025-03-03 17:37:45,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2025-03-03 17:37:45,162 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:45,162 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:45,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-03-03 17:37:45,162 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:45,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:45,163 INFO L85 PathProgramCache]: Analyzing trace with hash 679968066, now seen corresponding path program 1 times [2025-03-03 17:37:45,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:45,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833589874] [2025-03-03 17:37:45,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:45,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:45,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 812 statements into 1 equivalence classes. [2025-03-03 17:37:45,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 812 of 812 statements. [2025-03-03 17:37:45,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:45,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:46,051 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:46,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:46,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833589874] [2025-03-03 17:37:46,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833589874] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:46,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:46,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:46,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593301046] [2025-03-03 17:37:46,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:46,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:46,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:46,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:46,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:46,053 INFO L87 Difference]: Start difference. First operand 1587 states and 2359 transitions. Second operand has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:46,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:46,384 INFO L93 Difference]: Finished difference Result 2990 states and 4448 transitions. [2025-03-03 17:37:46,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:46,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 812 [2025-03-03 17:37:46,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:46,385 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:46,385 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:46,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:46,387 INFO L435 NwaCegarLoop]: 1908 mSDtfsCounter, 1983 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:46,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1983 Valid, 3814 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:46,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:46,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:46,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4867591424968474) internal successors, (2358), 1586 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:46,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2358 transitions. [2025-03-03 17:37:46,396 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2358 transitions. Word has length 812 [2025-03-03 17:37:46,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:46,397 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2358 transitions. [2025-03-03 17:37:46,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:46,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2358 transitions. [2025-03-03 17:37:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2025-03-03 17:37:46,401 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:46,401 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:46,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-03 17:37:46,401 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:46,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:46,402 INFO L85 PathProgramCache]: Analyzing trace with hash -720486139, now seen corresponding path program 1 times [2025-03-03 17:37:46,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:46,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868143041] [2025-03-03 17:37:46,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:46,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:46,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 813 statements into 1 equivalence classes. [2025-03-03 17:37:46,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 813 of 813 statements. [2025-03-03 17:37:46,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:46,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:47,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:47,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868143041] [2025-03-03 17:37:47,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868143041] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:47,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:47,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:47,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701065489] [2025-03-03 17:37:47,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:47,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:47,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:47,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:47,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:47,448 INFO L87 Difference]: Start difference. First operand 1587 states and 2358 transitions. Second operand has 4 states, 4 states have (on average 203.25) internal successors, (813), 4 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:47,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:47,807 INFO L93 Difference]: Finished difference Result 2990 states and 4446 transitions. [2025-03-03 17:37:47,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:47,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 203.25) internal successors, (813), 4 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 813 [2025-03-03 17:37:47,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:47,809 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:47,809 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:47,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:47,811 INFO L435 NwaCegarLoop]: 1903 mSDtfsCounter, 1963 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 3804 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:47,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 3804 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:47,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:47,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:47,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4861286254728878) internal successors, (2357), 1586 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:47,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2357 transitions. [2025-03-03 17:37:47,828 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2357 transitions. Word has length 813 [2025-03-03 17:37:47,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:47,828 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2357 transitions. [2025-03-03 17:37:47,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 203.25) internal successors, (813), 4 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:47,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2357 transitions. [2025-03-03 17:37:47,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 815 [2025-03-03 17:37:47,836 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:47,836 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:47,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-03-03 17:37:47,837 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:47,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:47,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1887809169, now seen corresponding path program 1 times [2025-03-03 17:37:47,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:47,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960440084] [2025-03-03 17:37:47,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:47,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:47,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 814 statements into 1 equivalence classes. [2025-03-03 17:37:48,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 814 of 814 statements. [2025-03-03 17:37:48,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:48,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:48,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:48,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960440084] [2025-03-03 17:37:48,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960440084] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:48,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:48,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:48,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144469557] [2025-03-03 17:37:48,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:48,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:48,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:48,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:48,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:48,783 INFO L87 Difference]: Start difference. First operand 1587 states and 2357 transitions. Second operand has 4 states, 4 states have (on average 203.5) internal successors, (814), 4 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:49,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:49,128 INFO L93 Difference]: Finished difference Result 2990 states and 4444 transitions. [2025-03-03 17:37:49,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:49,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 203.5) internal successors, (814), 4 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 814 [2025-03-03 17:37:49,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:49,130 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:49,130 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:49,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:49,131 INFO L435 NwaCegarLoop]: 1902 mSDtfsCounter, 1959 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1959 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:49,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1959 Valid, 3802 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:49,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:49,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:49,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.485498108448928) internal successors, (2356), 1586 states have internal predecessors, (2356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:49,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2356 transitions. [2025-03-03 17:37:49,143 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2356 transitions. Word has length 814 [2025-03-03 17:37:49,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:49,143 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2356 transitions. [2025-03-03 17:37:49,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 203.5) internal successors, (814), 4 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:49,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2356 transitions. [2025-03-03 17:37:49,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2025-03-03 17:37:49,147 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:49,147 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:49,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-03-03 17:37:49,148 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:49,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:49,148 INFO L85 PathProgramCache]: Analyzing trace with hash -66544116, now seen corresponding path program 1 times [2025-03-03 17:37:49,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:49,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417827491] [2025-03-03 17:37:49,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:49,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:49,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 815 statements into 1 equivalence classes. [2025-03-03 17:37:49,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 815 of 815 statements. [2025-03-03 17:37:49,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:49,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:49,984 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:49,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:49,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417827491] [2025-03-03 17:37:49,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417827491] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:49,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:49,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:49,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907325782] [2025-03-03 17:37:49,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:49,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:49,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:49,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:49,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:49,985 INFO L87 Difference]: Start difference. First operand 1587 states and 2356 transitions. Second operand has 4 states, 4 states have (on average 203.75) internal successors, (815), 4 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:50,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:50,335 INFO L93 Difference]: Finished difference Result 2990 states and 4442 transitions. [2025-03-03 17:37:50,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:50,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 203.75) internal successors, (815), 4 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 815 [2025-03-03 17:37:50,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:50,337 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:50,337 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:50,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:50,339 INFO L435 NwaCegarLoop]: 1908 mSDtfsCounter, 1955 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:50,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1955 Valid, 3814 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:50,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:50,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4848675914249685) internal successors, (2355), 1586 states have internal predecessors, (2355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2355 transitions. [2025-03-03 17:37:50,349 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2355 transitions. Word has length 815 [2025-03-03 17:37:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:50,349 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2355 transitions. [2025-03-03 17:37:50,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 203.75) internal successors, (815), 4 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:50,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2355 transitions. [2025-03-03 17:37:50,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2025-03-03 17:37:50,353 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:50,354 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:50,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-03-03 17:37:50,354 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:50,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:50,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1184661704, now seen corresponding path program 1 times [2025-03-03 17:37:50,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:50,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720206817] [2025-03-03 17:37:50,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:50,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:50,456 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 816 statements into 1 equivalence classes. [2025-03-03 17:37:50,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 816 of 816 statements. [2025-03-03 17:37:50,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:50,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:51,190 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:51,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:51,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720206817] [2025-03-03 17:37:51,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720206817] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:51,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:51,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:51,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956467829] [2025-03-03 17:37:51,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:51,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:51,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:51,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:51,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:51,192 INFO L87 Difference]: Start difference. First operand 1587 states and 2355 transitions. Second operand has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:51,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:51,539 INFO L93 Difference]: Finished difference Result 2990 states and 4440 transitions. [2025-03-03 17:37:51,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:51,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 816 [2025-03-03 17:37:51,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:51,541 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:51,541 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:51,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:51,543 INFO L435 NwaCegarLoop]: 1903 mSDtfsCounter, 1933 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 3804 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:51,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1933 Valid, 3804 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:51,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:51,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:51,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.484237074401009) internal successors, (2354), 1586 states have internal predecessors, (2354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2354 transitions. [2025-03-03 17:37:51,555 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2354 transitions. Word has length 816 [2025-03-03 17:37:51,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:51,556 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2354 transitions. [2025-03-03 17:37:51,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:51,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2354 transitions. [2025-03-03 17:37:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2025-03-03 17:37:51,560 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:51,560 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:51,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-03-03 17:37:51,560 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:51,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:51,561 INFO L85 PathProgramCache]: Analyzing trace with hash -319381696, now seen corresponding path program 1 times [2025-03-03 17:37:51,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:51,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678665307] [2025-03-03 17:37:51,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:51,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:51,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 817 statements into 1 equivalence classes. [2025-03-03 17:37:51,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 817 of 817 statements. [2025-03-03 17:37:51,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:51,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:52,493 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:52,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:52,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678665307] [2025-03-03 17:37:52,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678665307] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:52,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:52,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:52,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38937872] [2025-03-03 17:37:52,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:52,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:52,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:52,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:52,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:52,496 INFO L87 Difference]: Start difference. First operand 1587 states and 2354 transitions. Second operand has 4 states, 4 states have (on average 204.25) internal successors, (817), 4 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:52,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:52,838 INFO L93 Difference]: Finished difference Result 2990 states and 4438 transitions. [2025-03-03 17:37:52,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:52,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 204.25) internal successors, (817), 4 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 817 [2025-03-03 17:37:52,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:52,839 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:52,839 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:52,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:52,841 INFO L435 NwaCegarLoop]: 1899 mSDtfsCounter, 1801 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 3796 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:52,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 3796 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:52,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:52,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4836065573770492) internal successors, (2353), 1586 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:52,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2353 transitions. [2025-03-03 17:37:52,850 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2353 transitions. Word has length 817 [2025-03-03 17:37:52,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:52,851 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2353 transitions. [2025-03-03 17:37:52,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.25) internal successors, (817), 4 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:52,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2353 transitions. [2025-03-03 17:37:52,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2025-03-03 17:37:52,855 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:52,855 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:52,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-03-03 17:37:52,855 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:52,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:52,856 INFO L85 PathProgramCache]: Analyzing trace with hash 48097791, now seen corresponding path program 1 times [2025-03-03 17:37:52,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:52,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532709652] [2025-03-03 17:37:52,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:52,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:52,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 818 statements into 1 equivalence classes. [2025-03-03 17:37:53,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 818 of 818 statements. [2025-03-03 17:37:53,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:53,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:53,653 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:53,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:53,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532709652] [2025-03-03 17:37:53,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532709652] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:53,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:53,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:53,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561300322] [2025-03-03 17:37:53,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:53,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:53,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:53,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:53,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:53,654 INFO L87 Difference]: Start difference. First operand 1587 states and 2353 transitions. Second operand has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:54,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:54,013 INFO L93 Difference]: Finished difference Result 2990 states and 4436 transitions. [2025-03-03 17:37:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:54,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 818 [2025-03-03 17:37:54,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:54,015 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:54,015 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:54,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:54,016 INFO L435 NwaCegarLoop]: 1901 mSDtfsCounter, 1781 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1781 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:54,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1781 Valid, 3800 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:54,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:54,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:54,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4829760403530896) internal successors, (2352), 1586 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:54,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2352 transitions. [2025-03-03 17:37:54,062 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2352 transitions. Word has length 818 [2025-03-03 17:37:54,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:54,062 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2352 transitions. [2025-03-03 17:37:54,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:54,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2352 transitions. [2025-03-03 17:37:54,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2025-03-03 17:37:54,066 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:54,067 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:54,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-03-03 17:37:54,067 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:54,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:54,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1430271345, now seen corresponding path program 1 times [2025-03-03 17:37:54,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:54,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872955736] [2025-03-03 17:37:54,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:54,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:54,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 819 statements into 1 equivalence classes. [2025-03-03 17:37:54,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 819 of 819 statements. [2025-03-03 17:37:54,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:54,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:37:55,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:55,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872955736] [2025-03-03 17:37:55,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872955736] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:55,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:55,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:55,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121538771] [2025-03-03 17:37:55,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:55,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:55,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:55,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:55,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:55,037 INFO L87 Difference]: Start difference. First operand 1587 states and 2352 transitions. Second operand has 4 states, 4 states have (on average 204.75) internal successors, (819), 4 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:55,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:55,378 INFO L93 Difference]: Finished difference Result 2990 states and 4434 transitions. [2025-03-03 17:37:55,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:55,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 204.75) internal successors, (819), 4 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 819 [2025-03-03 17:37:55,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:55,380 INFO L225 Difference]: With dead ends: 2990 [2025-03-03 17:37:55,380 INFO L226 Difference]: Without dead ends: 1587 [2025-03-03 17:37:55,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:37:55,381 INFO L435 NwaCegarLoop]: 1897 mSDtfsCounter, 1649 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 3792 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:55,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 3792 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:37:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-03 17:37:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2025-03-03 17:37:55,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.4823455233291298) internal successors, (2351), 1586 states have internal predecessors, (2351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:55,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2351 transitions. [2025-03-03 17:37:55,392 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2351 transitions. Word has length 819 [2025-03-03 17:37:55,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:55,392 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2351 transitions. [2025-03-03 17:37:55,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.75) internal successors, (819), 4 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:55,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2351 transitions. [2025-03-03 17:37:55,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2025-03-03 17:37:55,397 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:55,397 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:55,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-03-03 17:37:55,397 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:55,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:55,398 INFO L85 PathProgramCache]: Analyzing trace with hash -2061025466, now seen corresponding path program 1 times [2025-03-03 17:37:55,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:55,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148114870] [2025-03-03 17:37:55,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:55,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:55,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 820 statements into 1 equivalence classes. [2025-03-03 17:37:55,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 820 of 820 statements. [2025-03-03 17:37:55,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:37:55,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:37:56,471 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-03 17:37:56,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:37:56,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148114870] [2025-03-03 17:37:56,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148114870] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:37:56,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:37:56,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:37:56,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060976078] [2025-03-03 17:37:56,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:37:56,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:37:56,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:37:56,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:37:56,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:37:56,473 INFO L87 Difference]: Start difference. First operand 1587 states and 2351 transitions. Second operand has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:56,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:37:56,867 INFO L93 Difference]: Finished difference Result 2992 states and 4435 transitions. [2025-03-03 17:37:56,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:37:56,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 820 [2025-03-03 17:37:56,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:37:56,869 INFO L225 Difference]: With dead ends: 2992 [2025-03-03 17:37:56,869 INFO L226 Difference]: Without dead ends: 1589 [2025-03-03 17:37:56,870 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 [2025-03-03 17:37:56,871 INFO L435 NwaCegarLoop]: 1909 mSDtfsCounter, 0 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5706 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:37:56,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5706 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:37:56,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2025-03-03 17:37:56,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1589. [2025-03-03 17:37:56,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1588 states have (on average 1.4817380352644836) internal successors, (2353), 1588 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:56,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2353 transitions. [2025-03-03 17:37:56,884 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2353 transitions. Word has length 820 [2025-03-03 17:37:56,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:37:56,884 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 2353 transitions. [2025-03-03 17:37:56,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:37:56,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2353 transitions. [2025-03-03 17:37:56,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2025-03-03 17:37:56,888 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:37:56,888 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:37:56,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-03-03 17:37:56,889 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:37:56,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:37:56,889 INFO L85 PathProgramCache]: Analyzing trace with hash -231080048, now seen corresponding path program 1 times [2025-03-03 17:37:56,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:37:56,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181288390] [2025-03-03 17:37:56,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:37:56,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:37:56,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 821 statements into 1 equivalence classes. [2025-03-03 17:38:00,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 821 of 821 statements. [2025-03-03 17:38:00,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:38:00,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:38:01,745 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:38:01,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:38:01,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181288390] [2025-03-03 17:38:01,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181288390] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:38:01,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:38:01,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 17:38:01,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475012398] [2025-03-03 17:38:01,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:38:01,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:38:01,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:38:01,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:38:01,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:38:01,748 INFO L87 Difference]: Start difference. First operand 1589 states and 2353 transitions. Second operand has 6 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:38:03,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:38:03,036 INFO L93 Difference]: Finished difference Result 4300 states and 6371 transitions. [2025-03-03 17:38:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:38:03,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 821 [2025-03-03 17:38:03,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:38:03,039 INFO L225 Difference]: With dead ends: 4300 [2025-03-03 17:38:03,039 INFO L226 Difference]: Without dead ends: 2895 [2025-03-03 17:38:03,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:38:03,040 INFO L435 NwaCegarLoop]: 1397 mSDtfsCounter, 2910 mSDsluCounter, 4440 mSDsCounter, 0 mSdLazyCounter, 3173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2910 SdHoareTripleChecker+Valid, 5837 SdHoareTripleChecker+Invalid, 3179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-03 17:38:03,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2910 Valid, 5837 Invalid, 3179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3173 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-03 17:38:03,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2025-03-03 17:38:03,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 2661. [2025-03-03 17:38:03,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2660 states have (on average 1.481578947368421) internal successors, (3941), 2660 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:38:03,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3941 transitions. [2025-03-03 17:38:03,064 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3941 transitions. Word has length 821 [2025-03-03 17:38:03,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:38:03,065 INFO L471 AbstractCegarLoop]: Abstraction has 2661 states and 3941 transitions. [2025-03-03 17:38:03,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:38:03,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3941 transitions. [2025-03-03 17:38:03,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2025-03-03 17:38:03,069 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:38:03,069 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:38:03,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-03-03 17:38:03,070 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:38:03,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:38:03,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2115795060, now seen corresponding path program 1 times [2025-03-03 17:38:03,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:38:03,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380622200] [2025-03-03 17:38:03,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:38:03,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:38:03,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 822 statements into 1 equivalence classes. [2025-03-03 17:38:05,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 822 of 822 statements. [2025-03-03 17:38:05,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:38:05,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:38:06,191 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:38:06,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:38:06,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380622200] [2025-03-03 17:38:06,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380622200] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:38:06,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:38:06,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 17:38:06,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859916279] [2025-03-03 17:38:06,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:38:06,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:38:06,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:38:06,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:38:06,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:38:06,194 INFO L87 Difference]: Start difference. First operand 2661 states and 3941 transitions. Second operand has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:38:07,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:38:07,813 INFO L93 Difference]: Finished difference Result 7465 states and 11046 transitions. [2025-03-03 17:38:07,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:38:07,814 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 822 [2025-03-03 17:38:07,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:38:07,819 INFO L225 Difference]: With dead ends: 7465 [2025-03-03 17:38:07,819 INFO L226 Difference]: Without dead ends: 6060 [2025-03-03 17:38:07,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:38:07,822 INFO L435 NwaCegarLoop]: 1388 mSDtfsCounter, 4082 mSDsluCounter, 5581 mSDsCounter, 0 mSdLazyCounter, 3590 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4082 SdHoareTripleChecker+Valid, 6969 SdHoareTripleChecker+Invalid, 3718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 3590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-03 17:38:07,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4082 Valid, 6969 Invalid, 3718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 3590 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-03 17:38:07,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6060 states. [2025-03-03 17:38:07,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6060 to 5753. [2025-03-03 17:38:07,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5753 states, 5752 states have (on average 1.4793115438108484) internal successors, (8509), 5752 states have internal predecessors, (8509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:38:07,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5753 states to 5753 states and 8509 transitions. [2025-03-03 17:38:07,875 INFO L78 Accepts]: Start accepts. Automaton has 5753 states and 8509 transitions. Word has length 822 [2025-03-03 17:38:07,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:38:07,876 INFO L471 AbstractCegarLoop]: Abstraction has 5753 states and 8509 transitions. [2025-03-03 17:38:07,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:38:07,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5753 states and 8509 transitions. [2025-03-03 17:38:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2025-03-03 17:38:07,881 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:38:07,881 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:38:07,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-03-03 17:38:07,881 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:38:07,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:38:07,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1464558817, now seen corresponding path program 1 times [2025-03-03 17:38:07,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:38:07,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922632896] [2025-03-03 17:38:07,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:38:07,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:38:07,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 823 statements into 1 equivalence classes. [2025-03-03 17:38:11,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 823 of 823 statements. [2025-03-03 17:38:11,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:38:11,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat