./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 97d5e878e91417e82dd07270e0861eeaeb97ebaf2313f5ec1a42b252f1484927 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 06:53:54,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 06:53:54,802 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 06:53:54,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 06:53:54,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 06:53:54,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 06:53:54,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 06:53:54,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 06:53:54,837 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 06:53:54,837 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 06:53:54,837 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 06:53:54,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 06:53:54,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 06:53:54,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 06:53:54,838 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 06:53:54,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 06:53:54,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 06:53:54,838 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 06:53:54,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 06:53:54,839 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 06:53:54,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 06:53:54,839 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 06:53:54,839 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 06:53:54,839 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 06:53:54,839 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 06:53:54,839 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 06:53:54,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 06:53:54,840 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 06:53:54,840 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 06:53:54,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 06:53:54,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 06:53:54,840 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 06:53:54,840 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 06:53:54,840 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 06:53:54,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 06:53:54,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 06:53:54,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 06:53:54,841 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 06:53:54,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 06:53:54,841 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 06:53:54,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 06:53:54,841 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 06:53:54,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 06:53:54,841 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 06:53:54,841 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 06:53:54,841 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-jdk21/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 -> 97d5e878e91417e82dd07270e0861eeaeb97ebaf2313f5ec1a42b252f1484927 [2025-01-09 06:53:55,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 06:53:55,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 06:53:55,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 06:53:55,104 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 06:53:55,104 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 06:53:55,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c [2025-01-09 06:53:56,384 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ece286cde/0a3225f0d2a64dda9061edbb8f0c4369/FLAGb8fd90c26 [2025-01-09 06:53:56,761 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 06:53:56,761 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c [2025-01-09 06:53:56,785 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ece286cde/0a3225f0d2a64dda9061edbb8f0c4369/FLAGb8fd90c26 [2025-01-09 06:53:56,799 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ece286cde/0a3225f0d2a64dda9061edbb8f0c4369 [2025-01-09 06:53:56,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 06:53:56,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 06:53:56,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 06:53:56,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 06:53:56,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 06:53:56,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:53:56" (1/1) ... [2025-01-09 06:53:56,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e60a0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:56, skipping insertion in model container [2025-01-09 06:53:56,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:53:56" (1/1) ... [2025-01-09 06:53:56,856 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 06:53:56,974 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c[1244,1257] [2025-01-09 06:53:57,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 06:53:57,306 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 06:53:57,313 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c[1244,1257] [2025-01-09 06:53:57,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 06:53:57,511 INFO L204 MainTranslator]: Completed translation [2025-01-09 06:53:57,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57 WrapperNode [2025-01-09 06:53:57,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 06:53:57,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 06:53:57,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 06:53:57,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 06:53:57,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:57,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,128 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6341 [2025-01-09 06:53:58,129 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 06:53:58,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 06:53:58,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 06:53:58,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 06:53:58,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,333 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,522 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2025-01-09 06:53:58,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,621 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,639 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,748 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 06:53:58,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 06:53:58,887 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 06:53:58,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 06:53:58,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (1/1) ... [2025-01-09 06:53:58,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 06:53:58,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:53:58,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 06:53:58,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 06:53:58,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 06:53:58,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 06:53:58,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 06:53:58,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 06:53:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 06:53:59,268 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 06:53:59,269 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 06:54:05,153 INFO L? ?]: Removed 3518 outVars from TransFormulas that were not future-live. [2025-01-09 06:54:05,153 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 06:54:05,196 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 06:54:05,197 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 06:54:05,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:54:05 BoogieIcfgContainer [2025-01-09 06:54:05,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 06:54:05,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 06:54:05,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 06:54:05,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 06:54:05,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 06:53:56" (1/3) ... [2025-01-09 06:54:05,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442c5af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:54:05, skipping insertion in model container [2025-01-09 06:54:05,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:53:57" (2/3) ... [2025-01-09 06:54:05,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442c5af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:54:05, skipping insertion in model container [2025-01-09 06:54:05,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:54:05" (3/3) ... [2025-01-09 06:54:05,206 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal5.c [2025-01-09 06:54:05,216 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 06:54:05,218 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cal5.c that has 1 procedures, 1951 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 06:54:05,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 06:54:05,309 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;@6c8bb515, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 06:54:05,310 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 06:54:05,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 1951 states, 1949 states have (on average 1.5028219599794768) internal successors, (2929), 1950 states have internal predecessors, (2929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:05,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2025-01-09 06:54:05,359 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:05,360 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:05,360 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:05,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash 2001985982, now seen corresponding path program 1 times [2025-01-09 06:54:05,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:05,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765575335] [2025-01-09 06:54:05,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:05,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:05,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 769 statements into 1 equivalence classes. [2025-01-09 06:54:09,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 769 of 769 statements. [2025-01-09 06:54:09,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:09,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:14,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:14,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765575335] [2025-01-09 06:54:14,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765575335] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:14,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:14,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 06:54:14,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741456541] [2025-01-09 06:54:14,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:14,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 06:54:14,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:14,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 06:54:14,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 06:54:14,130 INFO L87 Difference]: Start difference. First operand has 1951 states, 1949 states have (on average 1.5028219599794768) internal successors, (2929), 1950 states have internal predecessors, (2929), 0 states have call successors, (0), 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 7 states, 7 states have (on average 109.85714285714286) internal successors, (769), 7 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:14,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:14,471 INFO L93 Difference]: Finished difference Result 5125 states and 7703 transitions. [2025-01-09 06:54:14,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 06:54:14,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 109.85714285714286) internal successors, (769), 7 states have internal predecessors, (769), 0 states have call successors, (0), 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 769 [2025-01-09 06:54:14,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:14,503 INFO L225 Difference]: With dead ends: 5125 [2025-01-09 06:54:14,503 INFO L226 Difference]: Without dead ends: 3224 [2025-01-09 06:54:14,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2025-01-09 06:54:14,515 INFO L435 NwaCegarLoop]: 2913 mSDtfsCounter, 6844 mSDsluCounter, 11640 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6844 SdHoareTripleChecker+Valid, 14553 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:14,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6844 Valid, 14553 Invalid, 71 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 06:54:14,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3224 states. [2025-01-09 06:54:14,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3224 to 2149. [2025-01-09 06:54:14,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2149 states, 2148 states have (on average 1.5023277467411547) internal successors, (3227), 2148 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:14,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 3227 transitions. [2025-01-09 06:54:14,648 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 3227 transitions. Word has length 769 [2025-01-09 06:54:14,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:14,650 INFO L471 AbstractCegarLoop]: Abstraction has 2149 states and 3227 transitions. [2025-01-09 06:54:14,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 109.85714285714286) internal successors, (769), 7 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 3227 transitions. [2025-01-09 06:54:14,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2025-01-09 06:54:14,663 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:14,663 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:14,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 06:54:14,664 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:14,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:14,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1291615685, now seen corresponding path program 1 times [2025-01-09 06:54:14,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:14,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125941787] [2025-01-09 06:54:14,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:14,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:14,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 770 statements into 1 equivalence classes. [2025-01-09 06:54:14,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 770 of 770 statements. [2025-01-09 06:54:14,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:14,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:17,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:17,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125941787] [2025-01-09 06:54:17,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125941787] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:17,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:17,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 06:54:17,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960515102] [2025-01-09 06:54:17,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:17,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 06:54:17,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:17,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 06:54:17,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:54:17,416 INFO L87 Difference]: Start difference. First operand 2149 states and 3227 transitions. Second operand has 4 states, 4 states have (on average 192.5) internal successors, (770), 4 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:17,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:17,478 INFO L93 Difference]: Finished difference Result 2153 states and 3231 transitions. [2025-01-09 06:54:17,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:54:17,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 192.5) internal successors, (770), 4 states have internal predecessors, (770), 0 states have call successors, (0), 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 770 [2025-01-09 06:54:17,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:17,489 INFO L225 Difference]: With dead ends: 2153 [2025-01-09 06:54:17,489 INFO L226 Difference]: Without dead ends: 2151 [2025-01-09 06:54:17,490 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 [2025-01-09 06:54:17,491 INFO L435 NwaCegarLoop]: 2923 mSDtfsCounter, 0 mSDsluCounter, 5840 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8763 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:17,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8763 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:54:17,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2025-01-09 06:54:17,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 2151. [2025-01-09 06:54:17,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 2150 states have (on average 1.501860465116279) internal successors, (3229), 2150 states have internal predecessors, (3229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:17,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 3229 transitions. [2025-01-09 06:54:17,535 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 3229 transitions. Word has length 770 [2025-01-09 06:54:17,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:17,537 INFO L471 AbstractCegarLoop]: Abstraction has 2151 states and 3229 transitions. [2025-01-09 06:54:17,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 192.5) internal successors, (770), 4 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:17,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 3229 transitions. [2025-01-09 06:54:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2025-01-09 06:54:17,549 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:17,550 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:17,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 06:54:17,550 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:17,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:17,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1387080755, now seen corresponding path program 1 times [2025-01-09 06:54:17,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:17,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950176106] [2025-01-09 06:54:17,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:17,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:17,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 771 statements into 1 equivalence classes. [2025-01-09 06:54:17,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 771 of 771 statements. [2025-01-09 06:54:17,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:17,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:19,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:19,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:19,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950176106] [2025-01-09 06:54:19,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950176106] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:19,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:19,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 06:54:19,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252186880] [2025-01-09 06:54:19,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:19,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 06:54:19,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:19,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 06:54:19,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:54:19,679 INFO L87 Difference]: Start difference. First operand 2151 states and 3229 transitions. Second operand has 4 states, 4 states have (on average 192.75) internal successors, (771), 4 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:19,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:19,748 INFO L93 Difference]: Finished difference Result 4254 states and 6387 transitions. [2025-01-09 06:54:19,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:54:19,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 192.75) internal successors, (771), 4 states have internal predecessors, (771), 0 states have call successors, (0), 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 771 [2025-01-09 06:54:19,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:19,758 INFO L225 Difference]: With dead ends: 4254 [2025-01-09 06:54:19,758 INFO L226 Difference]: Without dead ends: 2153 [2025-01-09 06:54:19,765 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 [2025-01-09 06:54:19,766 INFO L435 NwaCegarLoop]: 2923 mSDtfsCounter, 0 mSDsluCounter, 5836 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8759 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:19,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8759 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:54:19,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2025-01-09 06:54:19,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2153. [2025-01-09 06:54:19,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2153 states, 2152 states have (on average 1.5013940520446096) internal successors, (3231), 2152 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 3231 transitions. [2025-01-09 06:54:19,817 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 3231 transitions. Word has length 771 [2025-01-09 06:54:19,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:19,819 INFO L471 AbstractCegarLoop]: Abstraction has 2153 states and 3231 transitions. [2025-01-09 06:54:19,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 192.75) internal successors, (771), 4 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:19,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 3231 transitions. [2025-01-09 06:54:19,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2025-01-09 06:54:19,831 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:19,832 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:19,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 06:54:19,832 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:19,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:19,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1048130466, now seen corresponding path program 1 times [2025-01-09 06:54:19,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:19,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144312928] [2025-01-09 06:54:19,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:19,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:19,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 772 statements into 1 equivalence classes. [2025-01-09 06:54:23,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 772 of 772 statements. [2025-01-09 06:54:23,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:23,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:24,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:24,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:24,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144312928] [2025-01-09 06:54:24,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144312928] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:24,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:24,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 06:54:24,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811308113] [2025-01-09 06:54:24,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:24,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 06:54:24,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:24,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 06:54:24,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:54:24,500 INFO L87 Difference]: Start difference. First operand 2153 states and 3231 transitions. Second operand has 6 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:25,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:25,129 INFO L93 Difference]: Finished difference Result 8030 states and 12053 transitions. [2025-01-09 06:54:25,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 06:54:25,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 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 772 [2025-01-09 06:54:25,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:25,144 INFO L225 Difference]: With dead ends: 8030 [2025-01-09 06:54:25,144 INFO L226 Difference]: Without dead ends: 3946 [2025-01-09 06:54:25,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-01-09 06:54:25,149 INFO L435 NwaCegarLoop]: 3797 mSDtfsCounter, 6047 mSDsluCounter, 14811 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6047 SdHoareTripleChecker+Valid, 18608 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:25,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6047 Valid, 18608 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 06:54:25,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2025-01-09 06:54:25,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 2845. [2025-01-09 06:54:25,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2845 states, 2844 states have (on average 1.500351617440225) internal successors, (4267), 2844 states have internal predecessors, (4267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:25,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2845 states to 2845 states and 4267 transitions. [2025-01-09 06:54:25,203 INFO L78 Accepts]: Start accepts. Automaton has 2845 states and 4267 transitions. Word has length 772 [2025-01-09 06:54:25,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:25,204 INFO L471 AbstractCegarLoop]: Abstraction has 2845 states and 4267 transitions. [2025-01-09 06:54:25,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:25,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2845 states and 4267 transitions. [2025-01-09 06:54:25,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2025-01-09 06:54:25,217 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:25,218 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:25,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 06:54:25,218 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:25,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:25,219 INFO L85 PathProgramCache]: Analyzing trace with hash 810589719, now seen corresponding path program 1 times [2025-01-09 06:54:25,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:25,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584366833] [2025-01-09 06:54:25,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:25,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:25,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 773 statements into 1 equivalence classes. [2025-01-09 06:54:25,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 773 of 773 statements. [2025-01-09 06:54:25,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:25,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:27,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:27,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584366833] [2025-01-09 06:54:27,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584366833] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:27,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:27,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 06:54:27,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512126585] [2025-01-09 06:54:27,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:27,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 06:54:27,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:27,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 06:54:27,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 06:54:27,716 INFO L87 Difference]: Start difference. First operand 2845 states and 4267 transitions. Second operand has 5 states, 5 states have (on average 154.6) internal successors, (773), 5 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:28,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:28,539 INFO L93 Difference]: Finished difference Result 5648 states and 8472 transitions. [2025-01-09 06:54:28,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 06:54:28,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 154.6) internal successors, (773), 5 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 773 [2025-01-09 06:54:28,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:28,547 INFO L225 Difference]: With dead ends: 5648 [2025-01-09 06:54:28,547 INFO L226 Difference]: Without dead ends: 2853 [2025-01-09 06:54:28,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 06:54:28,552 INFO L435 NwaCegarLoop]: 2920 mSDtfsCounter, 1 mSDsluCounter, 8023 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10943 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:28,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10943 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 06:54:28,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2025-01-09 06:54:28,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2851. [2025-01-09 06:54:28,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 2850 states have (on average 1.5) internal successors, (4275), 2850 states have internal predecessors, (4275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:28,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 4275 transitions. [2025-01-09 06:54:28,594 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 4275 transitions. Word has length 773 [2025-01-09 06:54:28,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:28,595 INFO L471 AbstractCegarLoop]: Abstraction has 2851 states and 4275 transitions. [2025-01-09 06:54:28,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 154.6) internal successors, (773), 5 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:28,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 4275 transitions. [2025-01-09 06:54:28,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2025-01-09 06:54:28,602 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:28,602 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:28,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 06:54:28,602 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:28,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:28,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1797291061, now seen corresponding path program 1 times [2025-01-09 06:54:28,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:28,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918908067] [2025-01-09 06:54:28,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:28,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:28,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 773 statements into 1 equivalence classes. [2025-01-09 06:54:29,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 773 of 773 statements. [2025-01-09 06:54:29,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:29,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:31,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:31,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:31,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918908067] [2025-01-09 06:54:31,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918908067] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:31,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:31,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 06:54:31,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981414755] [2025-01-09 06:54:31,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:31,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 06:54:31,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:31,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 06:54:31,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:54:31,330 INFO L87 Difference]: Start difference. First operand 2851 states and 4275 transitions. Second operand has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:31,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:31,365 INFO L93 Difference]: Finished difference Result 5652 states and 8476 transitions. [2025-01-09 06:54:31,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:54:31,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 773 [2025-01-09 06:54:31,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:31,373 INFO L225 Difference]: With dead ends: 5652 [2025-01-09 06:54:31,373 INFO L226 Difference]: Without dead ends: 2851 [2025-01-09 06:54:31,376 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 [2025-01-09 06:54:31,377 INFO L435 NwaCegarLoop]: 2920 mSDtfsCounter, 163 mSDsluCounter, 5595 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 8515 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:31,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 8515 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:54:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2025-01-09 06:54:31,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2851. [2025-01-09 06:54:31,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 2850 states have (on average 1.4992982456140351) internal successors, (4273), 2850 states have internal predecessors, (4273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:31,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 4273 transitions. [2025-01-09 06:54:31,419 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 4273 transitions. Word has length 773 [2025-01-09 06:54:31,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:31,419 INFO L471 AbstractCegarLoop]: Abstraction has 2851 states and 4273 transitions. [2025-01-09 06:54:31,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:31,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 4273 transitions. [2025-01-09 06:54:31,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2025-01-09 06:54:31,425 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:31,426 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:31,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 06:54:31,427 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:31,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:31,427 INFO L85 PathProgramCache]: Analyzing trace with hash -692476854, now seen corresponding path program 1 times [2025-01-09 06:54:31,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:31,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610384799] [2025-01-09 06:54:31,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:31,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:31,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 774 statements into 1 equivalence classes. [2025-01-09 06:54:33,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 774 of 774 statements. [2025-01-09 06:54:33,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:33,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:34,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:34,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:34,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610384799] [2025-01-09 06:54:34,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610384799] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:34,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:34,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 06:54:34,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630906638] [2025-01-09 06:54:34,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:34,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 06:54:34,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:34,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 06:54:34,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:54:34,481 INFO L87 Difference]: Start difference. First operand 2851 states and 4273 transitions. Second operand has 4 states, 4 states have (on average 193.5) internal successors, (774), 4 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:34,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:34,537 INFO L93 Difference]: Finished difference Result 5652 states and 8472 transitions. [2025-01-09 06:54:34,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:54:34,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 193.5) internal successors, (774), 4 states have internal predecessors, (774), 0 states have call successors, (0), 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 774 [2025-01-09 06:54:34,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:34,546 INFO L225 Difference]: With dead ends: 5652 [2025-01-09 06:54:34,546 INFO L226 Difference]: Without dead ends: 2851 [2025-01-09 06:54:34,549 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 [2025-01-09 06:54:34,550 INFO L435 NwaCegarLoop]: 2916 mSDtfsCounter, 811 mSDsluCounter, 4786 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 7702 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:34,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 7702 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:54:34,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2025-01-09 06:54:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2851. [2025-01-09 06:54:34,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 2850 states have (on average 1.4989473684210526) internal successors, (4272), 2850 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:34,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 4272 transitions. [2025-01-09 06:54:34,590 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 4272 transitions. Word has length 774 [2025-01-09 06:54:34,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:34,591 INFO L471 AbstractCegarLoop]: Abstraction has 2851 states and 4272 transitions. [2025-01-09 06:54:34,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.5) internal successors, (774), 4 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:34,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 4272 transitions. [2025-01-09 06:54:34,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2025-01-09 06:54:34,600 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:34,600 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:34,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 06:54:34,600 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:34,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:34,601 INFO L85 PathProgramCache]: Analyzing trace with hash 215359679, now seen corresponding path program 1 times [2025-01-09 06:54:34,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:34,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864099357] [2025-01-09 06:54:34,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:34,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:34,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 775 statements into 1 equivalence classes. [2025-01-09 06:54:36,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 775 of 775 statements. [2025-01-09 06:54:36,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:36,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:38,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:38,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:38,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864099357] [2025-01-09 06:54:38,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864099357] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:38,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:38,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 06:54:38,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694600231] [2025-01-09 06:54:38,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:38,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 06:54:38,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:38,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 06:54:38,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 06:54:38,176 INFO L87 Difference]: Start difference. First operand 2851 states and 4272 transitions. Second operand has 7 states, 7 states have (on average 110.71428571428571) internal successors, (775), 7 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:38,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:38,580 INFO L93 Difference]: Finished difference Result 5656 states and 8476 transitions. [2025-01-09 06:54:38,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 06:54:38,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 110.71428571428571) internal successors, (775), 7 states have internal predecessors, (775), 0 states have call successors, (0), 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 775 [2025-01-09 06:54:38,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:38,591 INFO L225 Difference]: With dead ends: 5656 [2025-01-09 06:54:38,591 INFO L226 Difference]: Without dead ends: 2855 [2025-01-09 06:54:38,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-09 06:54:38,595 INFO L435 NwaCegarLoop]: 2792 mSDtfsCounter, 3130 mSDsluCounter, 10177 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 12969 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:38,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3130 Valid, 12969 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 06:54:38,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2025-01-09 06:54:38,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2853. [2025-01-09 06:54:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2852 states have (on average 1.4985974754558204) internal successors, (4274), 2852 states have internal predecessors, (4274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:38,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 4274 transitions. [2025-01-09 06:54:38,627 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 4274 transitions. Word has length 775 [2025-01-09 06:54:38,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:38,631 INFO L471 AbstractCegarLoop]: Abstraction has 2853 states and 4274 transitions. [2025-01-09 06:54:38,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.71428571428571) internal successors, (775), 7 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 4274 transitions. [2025-01-09 06:54:38,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2025-01-09 06:54:38,637 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:38,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:38,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 06:54:38,637 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:38,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:38,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1575943, now seen corresponding path program 1 times [2025-01-09 06:54:38,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:38,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498029716] [2025-01-09 06:54:38,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:38,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:38,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 776 statements into 1 equivalence classes. [2025-01-09 06:54:40,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 776 of 776 statements. [2025-01-09 06:54:40,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:40,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:41,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:41,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:41,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498029716] [2025-01-09 06:54:41,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498029716] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:41,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:41,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 06:54:41,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100303778] [2025-01-09 06:54:41,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:41,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 06:54:41,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:41,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 06:54:41,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:54:41,300 INFO L87 Difference]: Start difference. First operand 2853 states and 4274 transitions. Second operand has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:41,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:41,337 INFO L93 Difference]: Finished difference Result 5659 states and 8478 transitions. [2025-01-09 06:54:41,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:54:41,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 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 776 [2025-01-09 06:54:41,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:41,351 INFO L225 Difference]: With dead ends: 5659 [2025-01-09 06:54:41,351 INFO L226 Difference]: Without dead ends: 2856 [2025-01-09 06:54:41,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:54:41,355 INFO L435 NwaCegarLoop]: 2920 mSDtfsCounter, 0 mSDsluCounter, 5832 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8752 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:41,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8752 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:54:41,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2025-01-09 06:54:41,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2856. [2025-01-09 06:54:41,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2856 states, 2855 states have (on average 1.4980735551663749) internal successors, (4277), 2855 states have internal predecessors, (4277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:41,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 4277 transitions. [2025-01-09 06:54:41,386 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 4277 transitions. Word has length 776 [2025-01-09 06:54:41,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:41,386 INFO L471 AbstractCegarLoop]: Abstraction has 2856 states and 4277 transitions. [2025-01-09 06:54:41,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:41,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 4277 transitions. [2025-01-09 06:54:41,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2025-01-09 06:54:41,392 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:41,393 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:41,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 06:54:41,393 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:41,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:41,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1422677725, now seen corresponding path program 1 times [2025-01-09 06:54:41,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:41,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962793719] [2025-01-09 06:54:41,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:41,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:41,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 776 statements into 1 equivalence classes. [2025-01-09 06:54:46,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 776 of 776 statements. [2025-01-09 06:54:46,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:46,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:48,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:48,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:48,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962793719] [2025-01-09 06:54:48,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962793719] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:48,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:48,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 06:54:48,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811027052] [2025-01-09 06:54:48,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:48,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 06:54:48,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:48,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 06:54:48,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:54:48,144 INFO L87 Difference]: Start difference. First operand 2856 states and 4277 transitions. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:48,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:48,348 INFO L93 Difference]: Finished difference Result 8068 states and 12083 transitions. [2025-01-09 06:54:48,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 06:54:48,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 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 776 [2025-01-09 06:54:48,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:48,358 INFO L225 Difference]: With dead ends: 8068 [2025-01-09 06:54:48,358 INFO L226 Difference]: Without dead ends: 5262 [2025-01-09 06:54:48,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2025-01-09 06:54:48,362 INFO L435 NwaCegarLoop]: 2895 mSDtfsCounter, 8816 mSDsluCounter, 8687 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8816 SdHoareTripleChecker+Valid, 11582 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:48,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8816 Valid, 11582 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 06:54:48,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5262 states. [2025-01-09 06:54:48,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5262 to 5243. [2025-01-09 06:54:48,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 1.4984738649370468) internal successors, (7855), 5242 states have internal predecessors, (7855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 7855 transitions. [2025-01-09 06:54:48,456 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 7855 transitions. Word has length 776 [2025-01-09 06:54:48,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:48,457 INFO L471 AbstractCegarLoop]: Abstraction has 5243 states and 7855 transitions. [2025-01-09 06:54:48,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:48,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 7855 transitions. [2025-01-09 06:54:48,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2025-01-09 06:54:48,463 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:48,463 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:48,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 06:54:48,463 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:48,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:48,464 INFO L85 PathProgramCache]: Analyzing trace with hash -244444683, now seen corresponding path program 1 times [2025-01-09 06:54:48,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:48,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747800243] [2025-01-09 06:54:48,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:48,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:48,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 777 statements into 1 equivalence classes. [2025-01-09 06:54:50,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 777 of 777 statements. [2025-01-09 06:54:50,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:50,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:51,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:51,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747800243] [2025-01-09 06:54:51,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747800243] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:51,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:51,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 06:54:51,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895192036] [2025-01-09 06:54:51,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:51,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 06:54:51,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:51,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 06:54:51,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:54:51,398 INFO L87 Difference]: Start difference. First operand 5243 states and 7855 transitions. Second operand has 4 states, 4 states have (on average 194.25) internal successors, (777), 4 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:51,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:51,444 INFO L93 Difference]: Finished difference Result 8305 states and 12440 transitions. [2025-01-09 06:54:51,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:54:51,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 194.25) internal successors, (777), 4 states have internal predecessors, (777), 0 states have call successors, (0), 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 777 [2025-01-09 06:54:51,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:51,452 INFO L225 Difference]: With dead ends: 8305 [2025-01-09 06:54:51,452 INFO L226 Difference]: Without dead ends: 5243 [2025-01-09 06:54:51,454 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 [2025-01-09 06:54:51,455 INFO L435 NwaCegarLoop]: 2915 mSDtfsCounter, 784 mSDsluCounter, 4785 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 7700 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:51,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 7700 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:54:51,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2025-01-09 06:54:51,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 5243. [2025-01-09 06:54:51,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 1.4980923311713086) internal successors, (7853), 5242 states have internal predecessors, (7853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:51,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 7853 transitions. [2025-01-09 06:54:51,498 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 7853 transitions. Word has length 777 [2025-01-09 06:54:51,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:51,498 INFO L471 AbstractCegarLoop]: Abstraction has 5243 states and 7853 transitions. [2025-01-09 06:54:51,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.25) internal successors, (777), 4 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:51,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 7853 transitions. [2025-01-09 06:54:51,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2025-01-09 06:54:51,505 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:51,505 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:51,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 06:54:51,505 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:51,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:51,506 INFO L85 PathProgramCache]: Analyzing trace with hash 477910726, now seen corresponding path program 1 times [2025-01-09 06:54:51,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:51,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393352007] [2025-01-09 06:54:51,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:51,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:51,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 778 statements into 1 equivalence classes. [2025-01-09 06:54:55,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 778 of 778 statements. [2025-01-09 06:54:55,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:54:55,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:54:56,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:54:56,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:54:56,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393352007] [2025-01-09 06:54:56,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393352007] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:54:56,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:54:56,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 06:54:56,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142351111] [2025-01-09 06:54:56,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:54:56,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 06:54:56,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:54:56,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 06:54:56,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:54:56,868 INFO L87 Difference]: Start difference. First operand 5243 states and 7853 transitions. Second operand has 6 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:57,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:54:57,526 INFO L93 Difference]: Finished difference Result 10839 states and 16235 transitions. [2025-01-09 06:54:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 06:54:57,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 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 778 [2025-01-09 06:54:57,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:54:57,537 INFO L225 Difference]: With dead ends: 10839 [2025-01-09 06:54:57,537 INFO L226 Difference]: Without dead ends: 7192 [2025-01-09 06:54:57,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 06:54:57,542 INFO L435 NwaCegarLoop]: 4240 mSDtfsCounter, 5066 mSDsluCounter, 11133 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5066 SdHoareTripleChecker+Valid, 15373 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 06:54:57,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5066 Valid, 15373 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 06:54:57,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7192 states. [2025-01-09 06:54:57,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7192 to 5245. [2025-01-09 06:54:57,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 1.49790236460717) internal successors, (7855), 5244 states have internal predecessors, (7855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 7855 transitions. [2025-01-09 06:54:57,601 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 7855 transitions. Word has length 778 [2025-01-09 06:54:57,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:54:57,601 INFO L471 AbstractCegarLoop]: Abstraction has 5245 states and 7855 transitions. [2025-01-09 06:54:57,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:54:57,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 7855 transitions. [2025-01-09 06:54:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2025-01-09 06:54:57,606 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:54:57,607 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:54:57,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 06:54:57,607 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:54:57,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:54:57,608 INFO L85 PathProgramCache]: Analyzing trace with hash -328281886, now seen corresponding path program 1 times [2025-01-09 06:54:57,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:54:57,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310658752] [2025-01-09 06:54:57,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:54:57,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:54:57,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 779 statements into 1 equivalence classes. [2025-01-09 06:55:02,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 779 of 779 statements. [2025-01-09 06:55:02,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:55:02,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:55:04,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:55:04,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:55:04,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310658752] [2025-01-09 06:55:04,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310658752] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:55:04,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:55:04,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 06:55:04,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573477994] [2025-01-09 06:55:04,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:55:04,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 06:55:04,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:55:04,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 06:55:04,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-09 06:55:04,476 INFO L87 Difference]: Start difference. First operand 5245 states and 7855 transitions. Second operand has 8 states, 8 states have (on average 97.375) internal successors, (779), 8 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:05,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:55:05,251 INFO L93 Difference]: Finished difference Result 10932 states and 16372 transitions. [2025-01-09 06:55:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 06:55:05,252 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 97.375) internal successors, (779), 8 states have internal predecessors, (779), 0 states have call successors, (0), 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 779 [2025-01-09 06:55:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:55:05,261 INFO L225 Difference]: With dead ends: 10932 [2025-01-09 06:55:05,261 INFO L226 Difference]: Without dead ends: 6429 [2025-01-09 06:55:05,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-09 06:55:05,266 INFO L435 NwaCegarLoop]: 2632 mSDtfsCounter, 3196 mSDsluCounter, 13145 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3196 SdHoareTripleChecker+Valid, 15777 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 06:55:05,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3196 Valid, 15777 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 06:55:05,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6429 states. [2025-01-09 06:55:05,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6429 to 6421. [2025-01-09 06:55:05,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6421 states, 6420 states have (on average 1.4970404984423675) internal successors, (9611), 6420 states have internal predecessors, (9611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:05,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6421 states to 6421 states and 9611 transitions. [2025-01-09 06:55:05,320 INFO L78 Accepts]: Start accepts. Automaton has 6421 states and 9611 transitions. Word has length 779 [2025-01-09 06:55:05,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:55:05,320 INFO L471 AbstractCegarLoop]: Abstraction has 6421 states and 9611 transitions. [2025-01-09 06:55:05,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 97.375) internal successors, (779), 8 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:05,321 INFO L276 IsEmpty]: Start isEmpty. Operand 6421 states and 9611 transitions. [2025-01-09 06:55:05,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2025-01-09 06:55:05,326 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:55:05,326 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:55:05,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 06:55:05,327 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:55:05,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:55:05,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1102449338, now seen corresponding path program 1 times [2025-01-09 06:55:05,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:55:05,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809642505] [2025-01-09 06:55:05,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:55:05,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:55:05,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 780 statements into 1 equivalence classes. [2025-01-09 06:55:07,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 780 of 780 statements. [2025-01-09 06:55:07,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:55:07,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:55:09,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:55:09,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:55:09,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809642505] [2025-01-09 06:55:09,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809642505] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:55:09,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:55:09,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 06:55:09,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267596014] [2025-01-09 06:55:09,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:55:09,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 06:55:09,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:55:09,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 06:55:09,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 06:55:09,046 INFO L87 Difference]: Start difference. First operand 6421 states and 9611 transitions. Second operand has 7 states, 7 states have (on average 111.42857142857143) internal successors, (780), 7 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:09,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:55:09,612 INFO L93 Difference]: Finished difference Result 10076 states and 15080 transitions. [2025-01-09 06:55:09,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 06:55:09,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 111.42857142857143) internal successors, (780), 7 states have internal predecessors, (780), 0 states have call successors, (0), 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 780 [2025-01-09 06:55:09,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:55:09,619 INFO L225 Difference]: With dead ends: 10076 [2025-01-09 06:55:09,622 INFO L226 Difference]: Without dead ends: 6429 [2025-01-09 06:55:09,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-09 06:55:09,626 INFO L435 NwaCegarLoop]: 2630 mSDtfsCounter, 3074 mSDsluCounter, 9563 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3074 SdHoareTripleChecker+Valid, 12193 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 06:55:09,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3074 Valid, 12193 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 06:55:09,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6429 states. [2025-01-09 06:55:09,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6429 to 6427. [2025-01-09 06:55:09,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6427 states, 6426 states have (on average 1.4965764083411142) internal successors, (9617), 6426 states have internal predecessors, (9617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6427 states to 6427 states and 9617 transitions. [2025-01-09 06:55:09,678 INFO L78 Accepts]: Start accepts. Automaton has 6427 states and 9617 transitions. Word has length 780 [2025-01-09 06:55:09,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:55:09,679 INFO L471 AbstractCegarLoop]: Abstraction has 6427 states and 9617 transitions. [2025-01-09 06:55:09,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 111.42857142857143) internal successors, (780), 7 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:09,679 INFO L276 IsEmpty]: Start isEmpty. Operand 6427 states and 9617 transitions. [2025-01-09 06:55:09,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2025-01-09 06:55:09,684 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:55:09,685 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:55:09,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 06:55:09,685 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:55:09,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:55:09,686 INFO L85 PathProgramCache]: Analyzing trace with hash -952018396, now seen corresponding path program 1 times [2025-01-09 06:55:09,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:55:09,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798385342] [2025-01-09 06:55:09,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:55:09,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:55:09,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 781 statements into 1 equivalence classes. [2025-01-09 06:55:10,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 781 of 781 statements. [2025-01-09 06:55:10,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:55:10,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:55:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:55:11,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:55:11,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798385342] [2025-01-09 06:55:11,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798385342] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:55:11,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:55:11,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 06:55:11,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281065719] [2025-01-09 06:55:11,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:55:11,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 06:55:11,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:55:11,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 06:55:11,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:55:11,552 INFO L87 Difference]: Start difference. First operand 6427 states and 9617 transitions. Second operand has 4 states, 4 states have (on average 195.25) internal successors, (781), 4 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:11,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:55:11,591 INFO L93 Difference]: Finished difference Result 11558 states and 17292 transitions. [2025-01-09 06:55:11,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:55:11,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 195.25) internal successors, (781), 4 states have internal predecessors, (781), 0 states have call successors, (0), 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 781 [2025-01-09 06:55:11,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:55:11,599 INFO L225 Difference]: With dead ends: 11558 [2025-01-09 06:55:11,599 INFO L226 Difference]: Without dead ends: 6451 [2025-01-09 06:55:11,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:55:11,605 INFO L435 NwaCegarLoop]: 2919 mSDtfsCounter, 0 mSDsluCounter, 5830 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8749 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:55:11,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8749 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:55:11,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6451 states. [2025-01-09 06:55:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6451 to 6451. [2025-01-09 06:55:11,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6451 states, 6450 states have (on average 1.4947286821705426) internal successors, (9641), 6450 states have internal predecessors, (9641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:11,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6451 states to 6451 states and 9641 transitions. [2025-01-09 06:55:11,660 INFO L78 Accepts]: Start accepts. Automaton has 6451 states and 9641 transitions. Word has length 781 [2025-01-09 06:55:11,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:55:11,660 INFO L471 AbstractCegarLoop]: Abstraction has 6451 states and 9641 transitions. [2025-01-09 06:55:11,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 195.25) internal successors, (781), 4 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:11,660 INFO L276 IsEmpty]: Start isEmpty. Operand 6451 states and 9641 transitions. [2025-01-09 06:55:11,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2025-01-09 06:55:11,665 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:55:11,666 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:55:11,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 06:55:11,666 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:55:11,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:55:11,667 INFO L85 PathProgramCache]: Analyzing trace with hash -556178180, now seen corresponding path program 1 times [2025-01-09 06:55:11,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:55:11,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330013325] [2025-01-09 06:55:11,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:55:11,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:55:11,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 781 statements into 1 equivalence classes. [2025-01-09 06:55:13,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 781 of 781 statements. [2025-01-09 06:55:13,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:55:13,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:55:14,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:55:14,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:55:14,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330013325] [2025-01-09 06:55:14,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330013325] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:55:14,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:55:14,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 06:55:14,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255290789] [2025-01-09 06:55:14,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:55:14,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 06:55:14,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:55:14,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 06:55:14,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:55:14,228 INFO L87 Difference]: Start difference. First operand 6451 states and 9641 transitions. Second operand has 4 states, 4 states have (on average 195.25) internal successors, (781), 4 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:14,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:55:14,268 INFO L93 Difference]: Finished difference Result 10124 states and 15128 transitions. [2025-01-09 06:55:14,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:55:14,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 195.25) internal successors, (781), 4 states have internal predecessors, (781), 0 states have call successors, (0), 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 781 [2025-01-09 06:55:14,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:55:14,274 INFO L225 Difference]: With dead ends: 10124 [2025-01-09 06:55:14,274 INFO L226 Difference]: Without dead ends: 6457 [2025-01-09 06:55:14,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:55:14,278 INFO L435 NwaCegarLoop]: 2919 mSDtfsCounter, 0 mSDsluCounter, 5830 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8749 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:55:14,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8749 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:55:14,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6457 states. [2025-01-09 06:55:14,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6457 to 6457. [2025-01-09 06:55:14,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6457 states, 6456 states have (on average 1.494268897149938) internal successors, (9647), 6456 states have internal predecessors, (9647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:14,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6457 states to 6457 states and 9647 transitions. [2025-01-09 06:55:14,333 INFO L78 Accepts]: Start accepts. Automaton has 6457 states and 9647 transitions. Word has length 781 [2025-01-09 06:55:14,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:55:14,334 INFO L471 AbstractCegarLoop]: Abstraction has 6457 states and 9647 transitions. [2025-01-09 06:55:14,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 195.25) internal successors, (781), 4 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 06:55:14,334 INFO L276 IsEmpty]: Start isEmpty. Operand 6457 states and 9647 transitions. [2025-01-09 06:55:14,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 783 [2025-01-09 06:55:14,339 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:55:14,339 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:55:14,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-09 06:55:14,340 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:55:14,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:55:14,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1689156837, now seen corresponding path program 1 times [2025-01-09 06:55:14,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:55:14,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489935300] [2025-01-09 06:55:14,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:55:14,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:55:14,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 782 statements into 1 equivalence classes.