./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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.cal9.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 21ba1e2aac39d30ab80cebcc5810c00ee6372583f3d8403b849f6ba17231dc2d --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 18:50:24,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 18:50:24,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-05 18:50:24,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 18:50:24,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 18:50:24,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 18:50:24,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 18:50:24,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 18:50:24,570 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 18:50:24,571 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 18:50:24,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 18:50:24,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 18:50:24,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 18:50:24,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 18:50:24,572 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 18:50:24,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 18:50:24,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 18:50:24,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 18:50:24,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 18:50:24,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 18:50:24,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 18:50:24,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 18:50:24,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 18:50:24,572 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 18:50:24,573 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 18:50:24,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 18:50:24,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 18:50:24,573 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 -> 21ba1e2aac39d30ab80cebcc5810c00ee6372583f3d8403b849f6ba17231dc2d [2025-02-05 18:50:24,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 18:50:24,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 18:50:24,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 18:50:24,777 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 18:50:24,777 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 18:50:24,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal9.c [2025-02-05 18:50:25,910 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8152b4eee/45df9f0649c54372bd5a4063b22b98b3/FLAGef8537856 [2025-02-05 18:50:26,285 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 18:50:26,285 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal9.c [2025-02-05 18:50:26,301 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8152b4eee/45df9f0649c54372bd5a4063b22b98b3/FLAGef8537856 [2025-02-05 18:50:26,469 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8152b4eee/45df9f0649c54372bd5a4063b22b98b3 [2025-02-05 18:50:26,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 18:50:26,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 18:50:26,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 18:50:26,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 18:50:26,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 18:50:26,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:26,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30270c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26, skipping insertion in model container [2025-02-05 18:50:26,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:26,518 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 18:50:26,640 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.cal9.c[1244,1257] [2025-02-05 18:50:26,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 18:50:26,857 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 18:50:26,864 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.cal9.c[1244,1257] [2025-02-05 18:50:26,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 18:50:26,983 INFO L204 MainTranslator]: Completed translation [2025-02-05 18:50:26,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26 WrapperNode [2025-02-05 18:50:26,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 18:50:26,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 18:50:26,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 18:50:26,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 18:50:26,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,293 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3628 [2025-02-05 18:50:27,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 18:50:27,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 18:50:27,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 18:50:27,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 18:50:27,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,342 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,487 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]. [2025-02-05 18:50:27,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,564 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,617 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 18:50:27,719 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 18:50:27,719 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 18:50:27,719 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 18:50:27,720 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (1/1) ... [2025-02-05 18:50:27,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 18:50:27,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 18:50:27,771 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) [2025-02-05 18:50:27,777 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 [2025-02-05 18:50:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 18:50:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 18:50:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 18:50:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 18:50:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 18:50:28,135 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 18:50:28,137 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 18:50:30,885 INFO L? ?]: Removed 2034 outVars from TransFormulas that were not future-live. [2025-02-05 18:50:30,885 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 18:50:31,084 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 18:50:31,084 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 18:50:31,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 06:50:31 BoogieIcfgContainer [2025-02-05 18:50:31,084 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 18:50:31,086 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 18:50:31,086 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 18:50:31,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 18:50:31,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 06:50:26" (1/3) ... [2025-02-05 18:50:31,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b53e814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 06:50:31, skipping insertion in model container [2025-02-05 18:50:31,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:50:26" (2/3) ... [2025-02-05 18:50:31,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b53e814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 06:50:31, skipping insertion in model container [2025-02-05 18:50:31,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 06:50:31" (3/3) ... [2025-02-05 18:50:31,098 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal9.c [2025-02-05 18:50:31,114 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 18:50:31,116 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cal9.c that has 1 procedures, 1085 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 18:50:31,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 18:50:31,204 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;@55be4998, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 18:50:31,205 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 18:50:31,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 1085 states, 1083 states have (on average 1.5004616805170823) internal successors, (1625), 1084 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:31,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2025-02-05 18:50:31,247 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:31,248 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] [2025-02-05 18:50:31,251 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:31,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:31,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1313250636, now seen corresponding path program 1 times [2025-02-05 18:50:31,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:31,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751102640] [2025-02-05 18:50:31,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:31,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:31,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 345 statements into 1 equivalence classes. [2025-02-05 18:50:31,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 345 of 345 statements. [2025-02-05 18:50:31,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:31,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:33,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:33,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:33,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751102640] [2025-02-05 18:50:33,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751102640] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:33,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:33,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 18:50:33,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888335782] [2025-02-05 18:50:33,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:33,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 18:50:33,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:33,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 18:50:33,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 18:50:33,367 INFO L87 Difference]: Start difference. First operand has 1085 states, 1083 states have (on average 1.5004616805170823) internal successors, (1625), 1084 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:33,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:50:33,898 INFO L93 Difference]: Finished difference Result 2139 states and 3207 transitions. [2025-02-05 18:50:33,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 18:50:33,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 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 345 [2025-02-05 18:50:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:50:33,915 INFO L225 Difference]: With dead ends: 2139 [2025-02-05 18:50:33,919 INFO L226 Difference]: Without dead ends: 1084 [2025-02-05 18:50:33,923 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 [2025-02-05 18:50:33,928 INFO L435 NwaCegarLoop]: 1351 mSDtfsCounter, 0 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4048 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 18:50:33,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4048 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 18:50:33,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2025-02-05 18:50:33,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1084. [2025-02-05 18:50:33,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1083 states have (on average 1.4986149584487534) internal successors, (1623), 1083 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:34,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1623 transitions. [2025-02-05 18:50:34,001 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1623 transitions. Word has length 345 [2025-02-05 18:50:34,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:50:34,004 INFO L471 AbstractCegarLoop]: Abstraction has 1084 states and 1623 transitions. [2025-02-05 18:50:34,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:34,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1623 transitions. [2025-02-05 18:50:34,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2025-02-05 18:50:34,009 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:34,009 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] [2025-02-05 18:50:34,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 18:50:34,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:34,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:34,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2051384221, now seen corresponding path program 1 times [2025-02-05 18:50:34,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:34,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856428761] [2025-02-05 18:50:34,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:34,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:34,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes. [2025-02-05 18:50:34,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements. [2025-02-05 18:50:34,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:34,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:34,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:34,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856428761] [2025-02-05 18:50:34,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856428761] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:34,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:34,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 18:50:34,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834939881] [2025-02-05 18:50:34,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:34,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 18:50:34,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:34,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 18:50:34,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 18:50:34,700 INFO L87 Difference]: Start difference. First operand 1084 states and 1623 transitions. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:35,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:50:35,168 INFO L93 Difference]: Finished difference Result 2140 states and 3205 transitions. [2025-02-05 18:50:35,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 18:50:35,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 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 346 [2025-02-05 18:50:35,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:50:35,175 INFO L225 Difference]: With dead ends: 2140 [2025-02-05 18:50:35,176 INFO L226 Difference]: Without dead ends: 1086 [2025-02-05 18:50:35,177 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 [2025-02-05 18:50:35,177 INFO L435 NwaCegarLoop]: 1351 mSDtfsCounter, 0 mSDsluCounter, 2694 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4045 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 18:50:35,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4045 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 18:50:35,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2025-02-05 18:50:35,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1086. [2025-02-05 18:50:35,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1085 states have (on average 1.4976958525345623) internal successors, (1625), 1085 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:35,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1625 transitions. [2025-02-05 18:50:35,202 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1625 transitions. Word has length 346 [2025-02-05 18:50:35,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:50:35,203 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1625 transitions. [2025-02-05 18:50:35,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:35,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1625 transitions. [2025-02-05 18:50:35,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2025-02-05 18:50:35,206 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:35,206 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] [2025-02-05 18:50:35,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 18:50:35,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:35,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:35,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1531858801, now seen corresponding path program 1 times [2025-02-05 18:50:35,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:35,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834165896] [2025-02-05 18:50:35,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:35,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:35,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 347 statements into 1 equivalence classes. [2025-02-05 18:50:37,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 347 of 347 statements. [2025-02-05 18:50:37,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:37,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:38,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:38,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:38,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834165896] [2025-02-05 18:50:38,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834165896] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:38,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:38,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 18:50:38,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289119394] [2025-02-05 18:50:38,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:38,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 18:50:38,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:38,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 18:50:38,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 18:50:38,812 INFO L87 Difference]: Start difference. First operand 1086 states and 1625 transitions. Second operand has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:39,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:50:39,673 INFO L93 Difference]: Finished difference Result 2806 states and 4199 transitions. [2025-02-05 18:50:39,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 18:50:39,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 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 347 [2025-02-05 18:50:39,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:50:39,680 INFO L225 Difference]: With dead ends: 2806 [2025-02-05 18:50:39,681 INFO L226 Difference]: Without dead ends: 1750 [2025-02-05 18:50:39,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2025-02-05 18:50:39,683 INFO L435 NwaCegarLoop]: 1332 mSDtfsCounter, 4181 mSDsluCounter, 3997 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4181 SdHoareTripleChecker+Valid, 5329 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-05 18:50:39,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4181 Valid, 5329 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-05 18:50:39,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2025-02-05 18:50:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1731. [2025-02-05 18:50:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1730 states have (on average 1.498843930635838) internal successors, (2593), 1730 states have internal predecessors, (2593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2593 transitions. [2025-02-05 18:50:39,711 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2593 transitions. Word has length 347 [2025-02-05 18:50:39,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:50:39,711 INFO L471 AbstractCegarLoop]: Abstraction has 1731 states and 2593 transitions. [2025-02-05 18:50:39,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:39,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2593 transitions. [2025-02-05 18:50:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2025-02-05 18:50:39,714 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:39,715 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] [2025-02-05 18:50:39,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 18:50:39,715 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:39,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:39,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1645380616, now seen corresponding path program 1 times [2025-02-05 18:50:39,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:39,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030104191] [2025-02-05 18:50:39,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:39,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:39,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 348 statements into 1 equivalence classes. [2025-02-05 18:50:40,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 348 of 348 statements. [2025-02-05 18:50:40,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:40,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:40,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:40,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:40,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030104191] [2025-02-05 18:50:40,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030104191] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:40,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:40,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 18:50:40,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915845108] [2025-02-05 18:50:40,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:40,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 18:50:40,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:40,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 18:50:40,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 18:50:40,762 INFO L87 Difference]: Start difference. First operand 1731 states and 2593 transitions. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:41,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:50:41,601 INFO L93 Difference]: Finished difference Result 3781 states and 5663 transitions. [2025-02-05 18:50:41,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 18:50:41,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 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 348 [2025-02-05 18:50:41,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:50:41,606 INFO L225 Difference]: With dead ends: 3781 [2025-02-05 18:50:41,606 INFO L226 Difference]: Without dead ends: 1731 [2025-02-05 18:50:41,609 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 [2025-02-05 18:50:41,609 INFO L435 NwaCegarLoop]: 2048 mSDtfsCounter, 1429 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 5296 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-05 18:50:41,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 5296 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-05 18:50:41,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2025-02-05 18:50:41,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2025-02-05 18:50:41,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1730 states have (on average 1.4976878612716762) internal successors, (2591), 1730 states have internal predecessors, (2591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:41,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2591 transitions. [2025-02-05 18:50:41,638 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2591 transitions. Word has length 348 [2025-02-05 18:50:41,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:50:41,638 INFO L471 AbstractCegarLoop]: Abstraction has 1731 states and 2591 transitions. [2025-02-05 18:50:41,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:41,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2591 transitions. [2025-02-05 18:50:41,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2025-02-05 18:50:41,641 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:41,641 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] [2025-02-05 18:50:41,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 18:50:41,642 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:41,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:41,642 INFO L85 PathProgramCache]: Analyzing trace with hash 415405728, now seen corresponding path program 1 times [2025-02-05 18:50:41,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:41,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280292726] [2025-02-05 18:50:41,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:41,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:41,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 349 statements into 1 equivalence classes. [2025-02-05 18:50:42,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 349 of 349 statements. [2025-02-05 18:50:42,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:42,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:42,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:42,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:42,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280292726] [2025-02-05 18:50:42,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280292726] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:42,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:42,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 18:50:42,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061403818] [2025-02-05 18:50:42,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:42,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 18:50:42,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:42,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 18:50:42,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 18:50:42,763 INFO L87 Difference]: Start difference. First operand 1731 states and 2591 transitions. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:43,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:50:43,192 INFO L93 Difference]: Finished difference Result 2809 states and 4202 transitions. [2025-02-05 18:50:43,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 18:50:43,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 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 349 [2025-02-05 18:50:43,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:50:43,198 INFO L225 Difference]: With dead ends: 2809 [2025-02-05 18:50:43,198 INFO L226 Difference]: Without dead ends: 1731 [2025-02-05 18:50:43,199 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 [2025-02-05 18:50:43,201 INFO L435 NwaCegarLoop]: 1347 mSDtfsCounter, 28 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 18:50:43,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 4016 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 18:50:43,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2025-02-05 18:50:43,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2025-02-05 18:50:43,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1730 states have (on average 1.4965317919075145) internal successors, (2589), 1730 states have internal predecessors, (2589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:43,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2589 transitions. [2025-02-05 18:50:43,232 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2589 transitions. Word has length 349 [2025-02-05 18:50:43,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:50:43,232 INFO L471 AbstractCegarLoop]: Abstraction has 1731 states and 2589 transitions. [2025-02-05 18:50:43,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:43,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2589 transitions. [2025-02-05 18:50:43,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2025-02-05 18:50:43,235 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:43,236 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] [2025-02-05 18:50:43,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 18:50:43,237 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:43,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:43,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1158209271, now seen corresponding path program 1 times [2025-02-05 18:50:43,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:43,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148557794] [2025-02-05 18:50:43,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:43,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:43,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 350 statements into 1 equivalence classes. [2025-02-05 18:50:44,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 350 of 350 statements. [2025-02-05 18:50:44,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:44,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:45,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:45,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148557794] [2025-02-05 18:50:45,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148557794] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:45,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:45,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 18:50:45,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439214374] [2025-02-05 18:50:45,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:45,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 18:50:45,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:45,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 18:50:45,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:50:45,354 INFO L87 Difference]: Start difference. First operand 1731 states and 2589 transitions. Second operand has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:46,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:50:46,053 INFO L93 Difference]: Finished difference Result 2805 states and 4192 transitions. [2025-02-05 18:50:46,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 18:50:46,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 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 350 [2025-02-05 18:50:46,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:50:46,061 INFO L225 Difference]: With dead ends: 2805 [2025-02-05 18:50:46,061 INFO L226 Difference]: Without dead ends: 1739 [2025-02-05 18:50:46,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-05 18:50:46,062 INFO L435 NwaCegarLoop]: 1202 mSDtfsCounter, 1293 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 3601 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 18:50:46,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 3601 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 18:50:46,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2025-02-05 18:50:46,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1737. [2025-02-05 18:50:46,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1736 states have (on average 1.494815668202765) internal successors, (2595), 1736 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:46,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2595 transitions. [2025-02-05 18:50:46,084 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2595 transitions. Word has length 350 [2025-02-05 18:50:46,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:50:46,084 INFO L471 AbstractCegarLoop]: Abstraction has 1737 states and 2595 transitions. [2025-02-05 18:50:46,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:46,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2595 transitions. [2025-02-05 18:50:46,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2025-02-05 18:50:46,087 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:46,087 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] [2025-02-05 18:50:46,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 18:50:46,088 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:46,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:46,088 INFO L85 PathProgramCache]: Analyzing trace with hash 980177096, now seen corresponding path program 1 times [2025-02-05 18:50:46,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:46,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937575403] [2025-02-05 18:50:46,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:46,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:46,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 351 statements into 1 equivalence classes. [2025-02-05 18:50:47,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 351 of 351 statements. [2025-02-05 18:50:47,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:47,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:48,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:48,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:48,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937575403] [2025-02-05 18:50:48,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937575403] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:48,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:48,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 18:50:48,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158359223] [2025-02-05 18:50:48,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:48,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 18:50:48,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:48,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 18:50:48,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-05 18:50:48,210 INFO L87 Difference]: Start difference. First operand 1737 states and 2595 transitions. Second operand has 8 states, 8 states have (on average 43.875) internal successors, (351), 8 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:50:49,175 INFO L93 Difference]: Finished difference Result 2817 states and 4204 transitions. [2025-02-05 18:50:49,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 18:50:49,175 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 43.875) internal successors, (351), 8 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2025-02-05 18:50:49,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:50:49,180 INFO L225 Difference]: With dead ends: 2817 [2025-02-05 18:50:49,180 INFO L226 Difference]: Without dead ends: 1758 [2025-02-05 18:50:49,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2025-02-05 18:50:49,182 INFO L435 NwaCegarLoop]: 1329 mSDtfsCounter, 4173 mSDsluCounter, 6641 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4173 SdHoareTripleChecker+Valid, 7970 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-05 18:50:49,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4173 Valid, 7970 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-05 18:50:49,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2025-02-05 18:50:49,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1740. [2025-02-05 18:50:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1740 states, 1739 states have (on average 1.4945370902817712) internal successors, (2599), 1739 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:49,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2599 transitions. [2025-02-05 18:50:49,203 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2599 transitions. Word has length 351 [2025-02-05 18:50:49,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:50:49,203 INFO L471 AbstractCegarLoop]: Abstraction has 1740 states and 2599 transitions. [2025-02-05 18:50:49,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.875) internal successors, (351), 8 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:49,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2599 transitions. [2025-02-05 18:50:49,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2025-02-05 18:50:49,206 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:49,206 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] [2025-02-05 18:50:49,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 18:50:49,206 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:49,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:49,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1521985787, now seen corresponding path program 1 times [2025-02-05 18:50:49,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:49,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100525363] [2025-02-05 18:50:49,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:49,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:49,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 352 statements into 1 equivalence classes. [2025-02-05 18:50:49,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 352 of 352 statements. [2025-02-05 18:50:49,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:49,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:50,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:50,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:50,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100525363] [2025-02-05 18:50:50,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100525363] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:50,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:50,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 18:50:50,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993035148] [2025-02-05 18:50:50,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:50,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 18:50:50,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:50,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 18:50:50,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 18:50:50,152 INFO L87 Difference]: Start difference. First operand 1740 states and 2599 transitions. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:50,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:50:50,671 INFO L93 Difference]: Finished difference Result 2847 states and 4245 transitions. [2025-02-05 18:50:50,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 18:50:50,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 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 352 [2025-02-05 18:50:50,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:50:50,675 INFO L225 Difference]: With dead ends: 2847 [2025-02-05 18:50:50,675 INFO L226 Difference]: Without dead ends: 1740 [2025-02-05 18:50:50,677 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 [2025-02-05 18:50:50,677 INFO L435 NwaCegarLoop]: 1347 mSDtfsCounter, 12 mSDsluCounter, 2547 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 18:50:50,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3894 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 18:50:50,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2025-02-05 18:50:50,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1740. [2025-02-05 18:50:50,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1740 states, 1739 states have (on average 1.493387004025302) internal successors, (2597), 1739 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:50,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2597 transitions. [2025-02-05 18:50:50,697 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2597 transitions. Word has length 352 [2025-02-05 18:50:50,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:50:50,697 INFO L471 AbstractCegarLoop]: Abstraction has 1740 states and 2597 transitions. [2025-02-05 18:50:50,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:50,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2597 transitions. [2025-02-05 18:50:50,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2025-02-05 18:50:50,699 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:50,699 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] [2025-02-05 18:50:50,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 18:50:50,700 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:50,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:50,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1357707521, now seen corresponding path program 1 times [2025-02-05 18:50:50,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:50,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533096574] [2025-02-05 18:50:50,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:50,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:50,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 353 statements into 1 equivalence classes. [2025-02-05 18:50:50,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 353 of 353 statements. [2025-02-05 18:50:50,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:50,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:51,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:51,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533096574] [2025-02-05 18:50:51,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533096574] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:51,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:51,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 18:50:51,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443173557] [2025-02-05 18:50:51,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:51,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 18:50:51,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:51,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 18:50:51,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:50:51,380 INFO L87 Difference]: Start difference. First operand 1740 states and 2597 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:52,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:50:52,035 INFO L93 Difference]: Finished difference Result 2835 states and 4226 transitions. [2025-02-05 18:50:52,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 18:50:52,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2025-02-05 18:50:52,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:50:52,039 INFO L225 Difference]: With dead ends: 2835 [2025-02-05 18:50:52,039 INFO L226 Difference]: Without dead ends: 1748 [2025-02-05 18:50:52,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:50:52,041 INFO L435 NwaCegarLoop]: 1201 mSDtfsCounter, 1617 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1617 SdHoareTripleChecker+Valid, 3598 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-05 18:50:52,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1617 Valid, 3598 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-05 18:50:52,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2025-02-05 18:50:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1746. [2025-02-05 18:50:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1746 states, 1745 states have (on average 1.4916905444126074) internal successors, (2603), 1745 states have internal predecessors, (2603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2603 transitions. [2025-02-05 18:50:52,059 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2603 transitions. Word has length 353 [2025-02-05 18:50:52,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:50:52,059 INFO L471 AbstractCegarLoop]: Abstraction has 1746 states and 2603 transitions. [2025-02-05 18:50:52,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2603 transitions. [2025-02-05 18:50:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2025-02-05 18:50:52,061 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:52,061 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] [2025-02-05 18:50:52,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 18:50:52,061 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:52,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:52,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1812079321, now seen corresponding path program 1 times [2025-02-05 18:50:52,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:52,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296581166] [2025-02-05 18:50:52,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:52,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:52,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 354 statements into 1 equivalence classes. [2025-02-05 18:50:53,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 354 of 354 statements. [2025-02-05 18:50:53,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:53,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:54,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:54,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:54,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296581166] [2025-02-05 18:50:54,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296581166] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:54,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:54,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 18:50:54,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607962408] [2025-02-05 18:50:54,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:54,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 18:50:54,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:54,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 18:50:54,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-02-05 18:50:54,342 INFO L87 Difference]: Start difference. First operand 1746 states and 2603 transitions. Second operand has 9 states, 9 states have (on average 39.333333333333336) internal successors, (354), 9 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:55,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:50:55,432 INFO L93 Difference]: Finished difference Result 2826 states and 4209 transitions. [2025-02-05 18:50:55,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 18:50:55,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 39.333333333333336) internal successors, (354), 9 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2025-02-05 18:50:55,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:50:55,436 INFO L225 Difference]: With dead ends: 2826 [2025-02-05 18:50:55,437 INFO L226 Difference]: Without dead ends: 1764 [2025-02-05 18:50:55,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2025-02-05 18:50:55,438 INFO L435 NwaCegarLoop]: 1323 mSDtfsCounter, 4161 mSDsluCounter, 7936 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4161 SdHoareTripleChecker+Valid, 9259 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-05 18:50:55,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4161 Valid, 9259 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-05 18:50:55,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2025-02-05 18:50:55,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1750. [2025-02-05 18:50:55,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1750 states, 1749 states have (on average 1.4911377930245855) internal successors, (2608), 1749 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:55,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 2608 transitions. [2025-02-05 18:50:55,455 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 2608 transitions. Word has length 354 [2025-02-05 18:50:55,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:50:55,456 INFO L471 AbstractCegarLoop]: Abstraction has 1750 states and 2608 transitions. [2025-02-05 18:50:55,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 39.333333333333336) internal successors, (354), 9 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 2608 transitions. [2025-02-05 18:50:55,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2025-02-05 18:50:55,458 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:55,458 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] [2025-02-05 18:50:55,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 18:50:55,458 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:55,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash 2078752085, now seen corresponding path program 1 times [2025-02-05 18:50:55,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:55,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173038803] [2025-02-05 18:50:55,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:55,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:55,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 355 statements into 1 equivalence classes. [2025-02-05 18:50:56,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 355 of 355 statements. [2025-02-05 18:50:56,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:56,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:57,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:57,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:57,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173038803] [2025-02-05 18:50:57,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173038803] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:57,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:57,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 18:50:57,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550548246] [2025-02-05 18:50:57,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:57,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 18:50:57,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:57,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 18:50:57,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-05 18:50:57,095 INFO L87 Difference]: Start difference. First operand 1750 states and 2608 transitions. Second operand has 8 states, 8 states have (on average 44.375) internal successors, (355), 8 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:57,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:50:57,878 INFO L93 Difference]: Finished difference Result 4145 states and 6183 transitions. [2025-02-05 18:50:57,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 18:50:57,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 8 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2025-02-05 18:50:57,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:50:57,884 INFO L225 Difference]: With dead ends: 4145 [2025-02-05 18:50:57,885 INFO L226 Difference]: Without dead ends: 2694 [2025-02-05 18:50:57,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-02-05 18:50:57,886 INFO L435 NwaCegarLoop]: 1338 mSDtfsCounter, 3024 mSDsluCounter, 6542 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3024 SdHoareTripleChecker+Valid, 7880 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 18:50:57,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3024 Valid, 7880 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 18:50:57,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2025-02-05 18:50:57,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 2640. [2025-02-05 18:50:57,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2639 states have (on average 1.4945054945054945) internal successors, (3944), 2639 states have internal predecessors, (3944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:57,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 3944 transitions. [2025-02-05 18:50:57,912 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 3944 transitions. Word has length 355 [2025-02-05 18:50:57,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:50:57,912 INFO L471 AbstractCegarLoop]: Abstraction has 2640 states and 3944 transitions. [2025-02-05 18:50:57,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 8 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:50:57,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 3944 transitions. [2025-02-05 18:50:57,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2025-02-05 18:50:57,917 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:50:57,917 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] [2025-02-05 18:50:57,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-05 18:50:57,917 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:50:57,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:50:57,917 INFO L85 PathProgramCache]: Analyzing trace with hash 882538804, now seen corresponding path program 1 times [2025-02-05 18:50:57,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:50:57,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755915785] [2025-02-05 18:50:57,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:50:57,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:50:57,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 356 statements into 1 equivalence classes. [2025-02-05 18:50:58,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 356 of 356 statements. [2025-02-05 18:50:58,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:50:58,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:50:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:50:59,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:50:59,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755915785] [2025-02-05 18:50:59,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755915785] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:50:59,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:50:59,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 18:50:59,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026861616] [2025-02-05 18:50:59,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:50:59,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 18:50:59,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:50:59,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 18:50:59,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 18:50:59,630 INFO L87 Difference]: Start difference. First operand 2640 states and 3944 transitions. Second operand has 7 states, 7 states have (on average 50.857142857142854) internal successors, (356), 7 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:00,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:00,569 INFO L93 Difference]: Finished difference Result 4396 states and 6560 transitions. [2025-02-05 18:51:00,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-05 18:51:00,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.857142857142854) internal successors, (356), 7 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2025-02-05 18:51:00,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:00,575 INFO L225 Difference]: With dead ends: 4396 [2025-02-05 18:51:00,575 INFO L226 Difference]: Without dead ends: 2694 [2025-02-05 18:51:00,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2025-02-05 18:51:00,577 INFO L435 NwaCegarLoop]: 1230 mSDtfsCounter, 2699 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 2132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2699 SdHoareTripleChecker+Valid, 6105 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:00,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2699 Valid, 6105 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2132 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-05 18:51:00,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2025-02-05 18:51:00,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 2642. [2025-02-05 18:51:00,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 2641 states have (on average 1.4941310109806891) internal successors, (3946), 2641 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 3946 transitions. [2025-02-05 18:51:00,622 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 3946 transitions. Word has length 356 [2025-02-05 18:51:00,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:00,622 INFO L471 AbstractCegarLoop]: Abstraction has 2642 states and 3946 transitions. [2025-02-05 18:51:00,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.857142857142854) internal successors, (356), 7 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 3946 transitions. [2025-02-05 18:51:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2025-02-05 18:51:00,625 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:00,625 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] [2025-02-05 18:51:00,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-05 18:51:00,625 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:00,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:00,626 INFO L85 PathProgramCache]: Analyzing trace with hash 593309381, now seen corresponding path program 1 times [2025-02-05 18:51:00,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:00,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646245947] [2025-02-05 18:51:00,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:00,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:00,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 356 statements into 1 equivalence classes. [2025-02-05 18:51:01,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 356 of 356 statements. [2025-02-05 18:51:01,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:01,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:02,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:02,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646245947] [2025-02-05 18:51:02,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646245947] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:02,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:02,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 18:51:02,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993256243] [2025-02-05 18:51:02,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:02,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 18:51:02,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:02,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 18:51:02,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 18:51:02,549 INFO L87 Difference]: Start difference. First operand 2642 states and 3946 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:02,913 INFO L93 Difference]: Finished difference Result 4253 states and 6345 transitions. [2025-02-05 18:51:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 18:51:02,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2025-02-05 18:51:02,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:02,920 INFO L225 Difference]: With dead ends: 4253 [2025-02-05 18:51:02,920 INFO L226 Difference]: Without dead ends: 2642 [2025-02-05 18:51:02,921 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 [2025-02-05 18:51:02,921 INFO L435 NwaCegarLoop]: 1340 mSDtfsCounter, 906 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:02,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 3073 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 18:51:02,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2025-02-05 18:51:02,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2642. [2025-02-05 18:51:02,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 2641 states have (on average 1.4933737220749717) internal successors, (3944), 2641 states have internal predecessors, (3944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:02,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 3944 transitions. [2025-02-05 18:51:02,946 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 3944 transitions. Word has length 356 [2025-02-05 18:51:02,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:02,946 INFO L471 AbstractCegarLoop]: Abstraction has 2642 states and 3944 transitions. [2025-02-05 18:51:02,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 3944 transitions. [2025-02-05 18:51:02,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2025-02-05 18:51:02,949 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:02,949 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] [2025-02-05 18:51:02,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-05 18:51:02,949 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:02,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:02,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1289972145, now seen corresponding path program 1 times [2025-02-05 18:51:02,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:02,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696431215] [2025-02-05 18:51:02,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:02,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:03,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 357 statements into 1 equivalence classes. [2025-02-05 18:51:03,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 357 of 357 statements. [2025-02-05 18:51:03,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:03,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:04,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:04,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696431215] [2025-02-05 18:51:04,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696431215] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:04,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:04,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 18:51:04,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771609995] [2025-02-05 18:51:04,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:04,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 18:51:04,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:04,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 18:51:04,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 18:51:04,497 INFO L87 Difference]: Start difference. First operand 2642 states and 3944 transitions. Second operand has 7 states, 7 states have (on average 51.0) internal successors, (357), 7 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:05,483 INFO L93 Difference]: Finished difference Result 4257 states and 6348 transitions. [2025-02-05 18:51:05,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-05 18:51:05,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.0) internal successors, (357), 7 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 357 [2025-02-05 18:51:05,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:05,498 INFO L225 Difference]: With dead ends: 4257 [2025-02-05 18:51:05,501 INFO L226 Difference]: Without dead ends: 2650 [2025-02-05 18:51:05,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-05 18:51:05,503 INFO L435 NwaCegarLoop]: 1096 mSDtfsCounter, 1355 mSDsluCounter, 3585 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 4681 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:05,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 4681 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2259 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-05 18:51:05,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2025-02-05 18:51:05,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2646. [2025-02-05 18:51:05,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2646 states, 2645 states have (on average 1.4926275992438562) internal successors, (3948), 2645 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:05,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 3948 transitions. [2025-02-05 18:51:05,529 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 3948 transitions. Word has length 357 [2025-02-05 18:51:05,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:05,529 INFO L471 AbstractCegarLoop]: Abstraction has 2646 states and 3948 transitions. [2025-02-05 18:51:05,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.0) internal successors, (357), 7 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:05,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 3948 transitions. [2025-02-05 18:51:05,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2025-02-05 18:51:05,531 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:05,531 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] [2025-02-05 18:51:05,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-05 18:51:05,532 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:05,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:05,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1934890976, now seen corresponding path program 1 times [2025-02-05 18:51:05,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:05,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388605273] [2025-02-05 18:51:05,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:05,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:05,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 358 statements into 1 equivalence classes. [2025-02-05 18:51:05,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 358 of 358 statements. [2025-02-05 18:51:05,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:05,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:06,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:06,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388605273] [2025-02-05 18:51:06,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388605273] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:06,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:06,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 18:51:06,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907841400] [2025-02-05 18:51:06,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:06,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 18:51:06,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:06,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 18:51:06,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 18:51:06,556 INFO L87 Difference]: Start difference. First operand 2646 states and 3948 transitions. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:06,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:06,944 INFO L93 Difference]: Finished difference Result 4169 states and 6219 transitions. [2025-02-05 18:51:06,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 18:51:06,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 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 358 [2025-02-05 18:51:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:06,952 INFO L225 Difference]: With dead ends: 4169 [2025-02-05 18:51:06,952 INFO L226 Difference]: Without dead ends: 2646 [2025-02-05 18:51:06,956 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 [2025-02-05 18:51:06,957 INFO L435 NwaCegarLoop]: 1344 mSDtfsCounter, 14 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:06,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4006 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 18:51:06,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2025-02-05 18:51:06,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2646. [2025-02-05 18:51:06,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2646 states, 2645 states have (on average 1.4918714555765595) internal successors, (3946), 2645 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:06,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 3946 transitions. [2025-02-05 18:51:06,975 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 3946 transitions. Word has length 358 [2025-02-05 18:51:06,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:06,975 INFO L471 AbstractCegarLoop]: Abstraction has 2646 states and 3946 transitions. [2025-02-05 18:51:06,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:06,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 3946 transitions. [2025-02-05 18:51:06,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2025-02-05 18:51:06,977 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:06,978 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] [2025-02-05 18:51:06,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-05 18:51:06,978 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:06,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1984991329, now seen corresponding path program 1 times [2025-02-05 18:51:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:06,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911932337] [2025-02-05 18:51:06,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:06,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:07,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 359 statements into 1 equivalence classes. [2025-02-05 18:51:08,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 359 of 359 statements. [2025-02-05 18:51:08,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:08,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:08,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:08,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911932337] [2025-02-05 18:51:08,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911932337] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:08,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:08,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 18:51:08,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176638506] [2025-02-05 18:51:08,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:08,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 18:51:08,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:08,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 18:51:08,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:51:08,641 INFO L87 Difference]: Start difference. First operand 2646 states and 3946 transitions. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:09,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:09,430 INFO L93 Difference]: Finished difference Result 4257 states and 6342 transitions. [2025-02-05 18:51:09,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 18:51:09,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 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 359 [2025-02-05 18:51:09,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:09,434 INFO L225 Difference]: With dead ends: 4257 [2025-02-05 18:51:09,434 INFO L226 Difference]: Without dead ends: 2648 [2025-02-05 18:51:09,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:51:09,435 INFO L435 NwaCegarLoop]: 1103 mSDtfsCounter, 1324 mSDsluCounter, 2202 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 3305 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:09,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 3305 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-05 18:51:09,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2025-02-05 18:51:09,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2648. [2025-02-05 18:51:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2648 states, 2647 states have (on average 1.4914998111069135) internal successors, (3948), 2647 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 3948 transitions. [2025-02-05 18:51:09,453 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 3948 transitions. Word has length 359 [2025-02-05 18:51:09,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:09,453 INFO L471 AbstractCegarLoop]: Abstraction has 2648 states and 3948 transitions. [2025-02-05 18:51:09,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:09,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 3948 transitions. [2025-02-05 18:51:09,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2025-02-05 18:51:09,458 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:09,458 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] [2025-02-05 18:51:09,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-05 18:51:09,459 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:09,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:09,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1760128055, now seen corresponding path program 1 times [2025-02-05 18:51:09,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:09,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982361088] [2025-02-05 18:51:09,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:09,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:09,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 359 statements into 1 equivalence classes. [2025-02-05 18:51:10,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 359 of 359 statements. [2025-02-05 18:51:10,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:10,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:11,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:11,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:11,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982361088] [2025-02-05 18:51:11,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982361088] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:11,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:11,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 18:51:11,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376048904] [2025-02-05 18:51:11,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:11,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 18:51:11,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:11,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 18:51:11,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:51:11,406 INFO L87 Difference]: Start difference. First operand 2648 states and 3948 transitions. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:11,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:11,983 INFO L93 Difference]: Finished difference Result 4203 states and 6258 transitions. [2025-02-05 18:51:11,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 18:51:11,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 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 359 [2025-02-05 18:51:11,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:11,986 INFO L225 Difference]: With dead ends: 4203 [2025-02-05 18:51:11,986 INFO L226 Difference]: Without dead ends: 2656 [2025-02-05 18:51:11,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-05 18:51:11,988 INFO L435 NwaCegarLoop]: 1200 mSDtfsCounter, 1296 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:11,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 3595 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 18:51:11,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2025-02-05 18:51:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2654. [2025-02-05 18:51:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 2653 states have (on average 1.4903882397286092) internal successors, (3954), 2653 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:12,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 3954 transitions. [2025-02-05 18:51:12,004 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 3954 transitions. Word has length 359 [2025-02-05 18:51:12,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:12,004 INFO L471 AbstractCegarLoop]: Abstraction has 2654 states and 3954 transitions. [2025-02-05 18:51:12,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:12,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 3954 transitions. [2025-02-05 18:51:12,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2025-02-05 18:51:12,006 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:12,006 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] [2025-02-05 18:51:12,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-05 18:51:12,006 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:12,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:12,007 INFO L85 PathProgramCache]: Analyzing trace with hash -28596031, now seen corresponding path program 1 times [2025-02-05 18:51:12,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:12,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186165993] [2025-02-05 18:51:12,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:12,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:12,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 359 statements into 1 equivalence classes. [2025-02-05 18:51:12,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 359 of 359 statements. [2025-02-05 18:51:12,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:12,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:13,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:13,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:13,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186165993] [2025-02-05 18:51:13,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186165993] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:13,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:13,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 18:51:13,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458587336] [2025-02-05 18:51:13,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:13,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 18:51:13,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:13,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 18:51:13,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:51:13,607 INFO L87 Difference]: Start difference. First operand 2654 states and 3954 transitions. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:14,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:14,080 INFO L93 Difference]: Finished difference Result 4242 states and 6311 transitions. [2025-02-05 18:51:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 18:51:14,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 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 359 [2025-02-05 18:51:14,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:14,084 INFO L225 Difference]: With dead ends: 4242 [2025-02-05 18:51:14,084 INFO L226 Difference]: Without dead ends: 2654 [2025-02-05 18:51:14,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-05 18:51:14,086 INFO L435 NwaCegarLoop]: 1333 mSDtfsCounter, 1388 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 3982 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:14,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 3982 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 18:51:14,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2025-02-05 18:51:14,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2654. [2025-02-05 18:51:14,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 2653 states have (on average 1.4896343761779118) internal successors, (3952), 2653 states have internal predecessors, (3952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:14,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 3952 transitions. [2025-02-05 18:51:14,102 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 3952 transitions. Word has length 359 [2025-02-05 18:51:14,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:14,103 INFO L471 AbstractCegarLoop]: Abstraction has 2654 states and 3952 transitions. [2025-02-05 18:51:14,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:14,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 3952 transitions. [2025-02-05 18:51:14,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2025-02-05 18:51:14,105 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:14,105 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] [2025-02-05 18:51:14,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-05 18:51:14,105 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:14,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:14,105 INFO L85 PathProgramCache]: Analyzing trace with hash -12087937, now seen corresponding path program 1 times [2025-02-05 18:51:14,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:14,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631841075] [2025-02-05 18:51:14,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:14,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:14,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 360 statements into 1 equivalence classes. [2025-02-05 18:51:15,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 360 of 360 statements. [2025-02-05 18:51:15,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:15,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:15,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:15,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631841075] [2025-02-05 18:51:15,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631841075] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:15,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:15,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 18:51:15,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618518575] [2025-02-05 18:51:15,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:15,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 18:51:15,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:15,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 18:51:15,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 18:51:15,694 INFO L87 Difference]: Start difference. First operand 2654 states and 3952 transitions. Second operand has 7 states, 7 states have (on average 51.42857142857143) internal successors, (360), 7 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:16,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:16,679 INFO L93 Difference]: Finished difference Result 4204 states and 6256 transitions. [2025-02-05 18:51:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-05 18:51:16,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.42857142857143) internal successors, (360), 7 states have internal predecessors, (360), 0 states have call successors, (0), 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 360 [2025-02-05 18:51:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:16,687 INFO L225 Difference]: With dead ends: 4204 [2025-02-05 18:51:16,687 INFO L226 Difference]: Without dead ends: 2662 [2025-02-05 18:51:16,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-05 18:51:16,688 INFO L435 NwaCegarLoop]: 1098 mSDtfsCounter, 1314 mSDsluCounter, 4372 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:16,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 5470 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-05 18:51:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2025-02-05 18:51:16,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2658. [2025-02-05 18:51:16,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2658 states, 2657 states have (on average 1.4888972525404591) internal successors, (3956), 2657 states have internal predecessors, (3956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:16,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2658 states to 2658 states and 3956 transitions. [2025-02-05 18:51:16,708 INFO L78 Accepts]: Start accepts. Automaton has 2658 states and 3956 transitions. Word has length 360 [2025-02-05 18:51:16,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:16,708 INFO L471 AbstractCegarLoop]: Abstraction has 2658 states and 3956 transitions. [2025-02-05 18:51:16,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.42857142857143) internal successors, (360), 7 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:16,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2658 states and 3956 transitions. [2025-02-05 18:51:16,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2025-02-05 18:51:16,710 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:16,710 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] [2025-02-05 18:51:16,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-05 18:51:16,711 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:16,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:16,712 INFO L85 PathProgramCache]: Analyzing trace with hash -821440980, now seen corresponding path program 1 times [2025-02-05 18:51:16,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:16,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21745559] [2025-02-05 18:51:16,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:16,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:16,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 361 statements into 1 equivalence classes. [2025-02-05 18:51:18,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 361 of 361 statements. [2025-02-05 18:51:18,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:18,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:19,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:19,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21745559] [2025-02-05 18:51:19,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21745559] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:19,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:19,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 18:51:19,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857261445] [2025-02-05 18:51:19,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:19,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 18:51:19,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:19,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 18:51:19,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-05 18:51:19,259 INFO L87 Difference]: Start difference. First operand 2658 states and 3956 transitions. Second operand has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:19,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:19,981 INFO L93 Difference]: Finished difference Result 7474 states and 11118 transitions. [2025-02-05 18:51:19,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 18:51:19,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 0 states have call successors, (0), 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 361 [2025-02-05 18:51:19,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:19,989 INFO L225 Difference]: With dead ends: 7474 [2025-02-05 18:51:19,989 INFO L226 Difference]: Without dead ends: 5066 [2025-02-05 18:51:19,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-02-05 18:51:19,993 INFO L435 NwaCegarLoop]: 1334 mSDtfsCounter, 3906 mSDsluCounter, 6295 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3906 SdHoareTripleChecker+Valid, 7629 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:19,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3906 Valid, 7629 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 18:51:19,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5066 states. [2025-02-05 18:51:20,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5066 to 4590. [2025-02-05 18:51:20,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4590 states, 4589 states have (on average 1.4931357594247112) internal successors, (6852), 4589 states have internal predecessors, (6852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:20,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 6852 transitions. [2025-02-05 18:51:20,036 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 6852 transitions. Word has length 361 [2025-02-05 18:51:20,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:20,037 INFO L471 AbstractCegarLoop]: Abstraction has 4590 states and 6852 transitions. [2025-02-05 18:51:20,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:20,037 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 6852 transitions. [2025-02-05 18:51:20,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2025-02-05 18:51:20,039 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:20,040 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] [2025-02-05 18:51:20,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-05 18:51:20,040 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:20,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:20,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1253912365, now seen corresponding path program 1 times [2025-02-05 18:51:20,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:20,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170881619] [2025-02-05 18:51:20,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:20,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:20,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 362 statements into 1 equivalence classes. [2025-02-05 18:51:20,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 362 of 362 statements. [2025-02-05 18:51:20,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:20,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:21,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:21,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170881619] [2025-02-05 18:51:21,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170881619] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:21,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:21,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 18:51:21,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191812628] [2025-02-05 18:51:21,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:21,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 18:51:21,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:21,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 18:51:21,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:51:21,667 INFO L87 Difference]: Start difference. First operand 4590 states and 6852 transitions. Second operand has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:22,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:22,402 INFO L93 Difference]: Finished difference Result 7116 states and 10614 transitions. [2025-02-05 18:51:22,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 18:51:22,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 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 362 [2025-02-05 18:51:22,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:22,409 INFO L225 Difference]: With dead ends: 7116 [2025-02-05 18:51:22,409 INFO L226 Difference]: Without dead ends: 4598 [2025-02-05 18:51:22,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 18:51:22,412 INFO L435 NwaCegarLoop]: 1175 mSDtfsCounter, 1289 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 3523 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:22,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 3523 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 18:51:22,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2025-02-05 18:51:22,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 4590. [2025-02-05 18:51:22,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4590 states, 4589 states have (on average 1.4931357594247112) internal successors, (6852), 4589 states have internal predecessors, (6852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:22,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 6852 transitions. [2025-02-05 18:51:22,442 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 6852 transitions. Word has length 362 [2025-02-05 18:51:22,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:22,443 INFO L471 AbstractCegarLoop]: Abstraction has 4590 states and 6852 transitions. [2025-02-05 18:51:22,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:22,443 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 6852 transitions. [2025-02-05 18:51:22,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2025-02-05 18:51:22,445 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:22,445 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] [2025-02-05 18:51:22,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-05 18:51:22,445 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:22,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:22,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1167778306, now seen corresponding path program 1 times [2025-02-05 18:51:22,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:22,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917881408] [2025-02-05 18:51:22,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:22,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:22,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 362 statements into 1 equivalence classes. [2025-02-05 18:51:23,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 362 of 362 statements. [2025-02-05 18:51:23,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:23,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:24,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:24,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:24,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917881408] [2025-02-05 18:51:24,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917881408] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:24,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:24,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 18:51:24,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438710198] [2025-02-05 18:51:24,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:24,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 18:51:24,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:24,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 18:51:24,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-02-05 18:51:24,343 INFO L87 Difference]: Start difference. First operand 4590 states and 6852 transitions. Second operand has 9 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:25,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:25,345 INFO L93 Difference]: Finished difference Result 7152 states and 10666 transitions. [2025-02-05 18:51:25,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 18:51:25,346 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 0 states have call successors, (0), 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 362 [2025-02-05 18:51:25,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:25,354 INFO L225 Difference]: With dead ends: 7152 [2025-02-05 18:51:25,354 INFO L226 Difference]: Without dead ends: 4598 [2025-02-05 18:51:25,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2025-02-05 18:51:25,361 INFO L435 NwaCegarLoop]: 1212 mSDtfsCounter, 2698 mSDsluCounter, 6062 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 7274 SdHoareTripleChecker+Invalid, 2383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:25,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 7274 Invalid, 2383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-05 18:51:25,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2025-02-05 18:51:25,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 4596. [2025-02-05 18:51:25,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4596 states, 4595 states have (on average 1.4924918389553863) internal successors, (6858), 4595 states have internal predecessors, (6858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:25,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 6858 transitions. [2025-02-05 18:51:25,409 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 6858 transitions. Word has length 362 [2025-02-05 18:51:25,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:25,409 INFO L471 AbstractCegarLoop]: Abstraction has 4596 states and 6858 transitions. [2025-02-05 18:51:25,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:25,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 6858 transitions. [2025-02-05 18:51:25,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2025-02-05 18:51:25,412 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:25,412 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] [2025-02-05 18:51:25,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-05 18:51:25,413 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:25,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1889030133, now seen corresponding path program 1 times [2025-02-05 18:51:25,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:25,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922102219] [2025-02-05 18:51:25,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:25,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:25,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 363 statements into 1 equivalence classes. [2025-02-05 18:51:25,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 363 of 363 statements. [2025-02-05 18:51:25,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:25,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:26,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:26,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:26,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922102219] [2025-02-05 18:51:26,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922102219] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:26,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:26,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 18:51:26,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809052281] [2025-02-05 18:51:26,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:26,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 18:51:26,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:26,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 18:51:26,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 18:51:26,145 INFO L87 Difference]: Start difference. First operand 4596 states and 6858 transitions. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:26,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:26,474 INFO L93 Difference]: Finished difference Result 7164 states and 10678 transitions. [2025-02-05 18:51:26,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 18:51:26,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 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 363 [2025-02-05 18:51:26,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:26,478 INFO L225 Difference]: With dead ends: 7164 [2025-02-05 18:51:26,478 INFO L226 Difference]: Without dead ends: 4602 [2025-02-05 18:51:26,480 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 [2025-02-05 18:51:26,481 INFO L435 NwaCegarLoop]: 1344 mSDtfsCounter, 0 mSDsluCounter, 2682 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4026 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:26,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4026 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 18:51:26,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2025-02-05 18:51:26,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 4602. [2025-02-05 18:51:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4601 states have (on average 1.4918495979134971) internal successors, (6864), 4601 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:26,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6864 transitions. [2025-02-05 18:51:26,558 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6864 transitions. Word has length 363 [2025-02-05 18:51:26,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:26,558 INFO L471 AbstractCegarLoop]: Abstraction has 4602 states and 6864 transitions. [2025-02-05 18:51:26,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:26,559 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6864 transitions. [2025-02-05 18:51:26,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2025-02-05 18:51:26,561 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:26,562 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] [2025-02-05 18:51:26,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-05 18:51:26,562 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:26,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:26,563 INFO L85 PathProgramCache]: Analyzing trace with hash 117669260, now seen corresponding path program 1 times [2025-02-05 18:51:26,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:26,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379881284] [2025-02-05 18:51:26,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:26,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:26,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 364 statements into 1 equivalence classes. [2025-02-05 18:51:27,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 364 of 364 statements. [2025-02-05 18:51:27,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:27,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:27,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:27,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379881284] [2025-02-05 18:51:27,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379881284] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:27,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:27,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 18:51:27,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20067185] [2025-02-05 18:51:27,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:27,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 18:51:27,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:27,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 18:51:27,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:51:27,822 INFO L87 Difference]: Start difference. First operand 4602 states and 6864 transitions. Second operand has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:28,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:28,392 INFO L93 Difference]: Finished difference Result 7694 states and 11446 transitions. [2025-02-05 18:51:28,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 18:51:28,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 0 states have call successors, (0), 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 364 [2025-02-05 18:51:28,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:28,400 INFO L225 Difference]: With dead ends: 7694 [2025-02-05 18:51:28,402 INFO L226 Difference]: Without dead ends: 4602 [2025-02-05 18:51:28,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 18:51:28,411 INFO L435 NwaCegarLoop]: 1338 mSDtfsCounter, 548 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 4758 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:28,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 4758 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 18:51:28,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2025-02-05 18:51:28,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 4602. [2025-02-05 18:51:28,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4601 states have (on average 1.4909802216909367) internal successors, (6860), 4601 states have internal predecessors, (6860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:28,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6860 transitions. [2025-02-05 18:51:28,445 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6860 transitions. Word has length 364 [2025-02-05 18:51:28,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:28,447 INFO L471 AbstractCegarLoop]: Abstraction has 4602 states and 6860 transitions. [2025-02-05 18:51:28,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:28,447 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6860 transitions. [2025-02-05 18:51:28,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2025-02-05 18:51:28,450 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:28,450 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] [2025-02-05 18:51:28,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-05 18:51:28,451 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:28,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:28,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1118671281, now seen corresponding path program 1 times [2025-02-05 18:51:28,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:28,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625931727] [2025-02-05 18:51:28,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:28,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:28,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 365 statements into 1 equivalence classes. [2025-02-05 18:51:29,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 365 of 365 statements. [2025-02-05 18:51:29,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:29,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:29,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:29,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:29,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625931727] [2025-02-05 18:51:29,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625931727] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:29,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:29,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 18:51:29,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824385765] [2025-02-05 18:51:29,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:29,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 18:51:29,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:29,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 18:51:29,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:51:29,641 INFO L87 Difference]: Start difference. First operand 4602 states and 6860 transitions. Second operand has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:30,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:30,378 INFO L93 Difference]: Finished difference Result 7120 states and 10610 transitions. [2025-02-05 18:51:30,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 18:51:30,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 0 states have call successors, (0), 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 365 [2025-02-05 18:51:30,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:30,381 INFO L225 Difference]: With dead ends: 7120 [2025-02-05 18:51:30,381 INFO L226 Difference]: Without dead ends: 4604 [2025-02-05 18:51:30,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:51:30,383 INFO L435 NwaCegarLoop]: 1101 mSDtfsCounter, 1279 mSDsluCounter, 2197 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:30,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 3298 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 18:51:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2025-02-05 18:51:30,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4604. [2025-02-05 18:51:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4604 states, 4603 states have (on average 1.4907668911579404) internal successors, (6862), 4603 states have internal predecessors, (6862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4604 states to 4604 states and 6862 transitions. [2025-02-05 18:51:30,411 INFO L78 Accepts]: Start accepts. Automaton has 4604 states and 6862 transitions. Word has length 365 [2025-02-05 18:51:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:30,412 INFO L471 AbstractCegarLoop]: Abstraction has 4604 states and 6862 transitions. [2025-02-05 18:51:30,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:30,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4604 states and 6862 transitions. [2025-02-05 18:51:30,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2025-02-05 18:51:30,414 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:30,414 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] [2025-02-05 18:51:30,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-05 18:51:30,415 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:30,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:30,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1971495997, now seen corresponding path program 1 times [2025-02-05 18:51:30,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:30,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55857865] [2025-02-05 18:51:30,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:30,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:30,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 365 statements into 1 equivalence classes. [2025-02-05 18:51:32,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 365 of 365 statements. [2025-02-05 18:51:32,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:32,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:32,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:32,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:32,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55857865] [2025-02-05 18:51:32,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55857865] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:32,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:32,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 18:51:32,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451657767] [2025-02-05 18:51:32,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:32,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 18:51:32,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:32,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 18:51:32,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 18:51:32,824 INFO L87 Difference]: Start difference. First operand 4604 states and 6862 transitions. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:33,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:33,709 INFO L93 Difference]: Finished difference Result 14118 states and 21029 transitions. [2025-02-05 18:51:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 18:51:33,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 0 states have call successors, (0), 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 365 [2025-02-05 18:51:33,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:33,718 INFO L225 Difference]: With dead ends: 14118 [2025-02-05 18:51:33,718 INFO L226 Difference]: Without dead ends: 11526 [2025-02-05 18:51:33,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 18:51:33,723 INFO L435 NwaCegarLoop]: 1703 mSDtfsCounter, 1483 mSDsluCounter, 5841 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 7544 SdHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:33,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 7544 Invalid, 2126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-05 18:51:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11526 states. [2025-02-05 18:51:33,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11526 to 8252. [2025-02-05 18:51:33,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8252 states, 8251 states have (on average 1.4921827657253666) internal successors, (12312), 8251 states have internal predecessors, (12312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:33,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8252 states to 8252 states and 12312 transitions. [2025-02-05 18:51:33,797 INFO L78 Accepts]: Start accepts. Automaton has 8252 states and 12312 transitions. Word has length 365 [2025-02-05 18:51:33,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:33,797 INFO L471 AbstractCegarLoop]: Abstraction has 8252 states and 12312 transitions. [2025-02-05 18:51:33,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:33,798 INFO L276 IsEmpty]: Start isEmpty. Operand 8252 states and 12312 transitions. [2025-02-05 18:51:33,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2025-02-05 18:51:33,802 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:33,802 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] [2025-02-05 18:51:33,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-05 18:51:33,802 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:33,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:33,803 INFO L85 PathProgramCache]: Analyzing trace with hash -506382506, now seen corresponding path program 1 times [2025-02-05 18:51:33,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:33,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772362540] [2025-02-05 18:51:33,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:33,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:33,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 366 statements into 1 equivalence classes. [2025-02-05 18:51:35,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 366 of 366 statements. [2025-02-05 18:51:35,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:35,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:35,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:35,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772362540] [2025-02-05 18:51:35,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772362540] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:35,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:35,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 18:51:35,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149923616] [2025-02-05 18:51:35,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:35,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 18:51:35,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:35,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 18:51:35,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-05 18:51:35,909 INFO L87 Difference]: Start difference. First operand 8252 states and 12312 transitions. Second operand has 8 states, 8 states have (on average 45.75) internal successors, (366), 8 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:37,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:37,256 INFO L93 Difference]: Finished difference Result 12676 states and 18898 transitions. [2025-02-05 18:51:37,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-05 18:51:37,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.75) internal successors, (366), 8 states have internal predecessors, (366), 0 states have call successors, (0), 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 366 [2025-02-05 18:51:37,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:37,262 INFO L225 Difference]: With dead ends: 12676 [2025-02-05 18:51:37,262 INFO L226 Difference]: Without dead ends: 8264 [2025-02-05 18:51:37,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-05 18:51:37,268 INFO L435 NwaCegarLoop]: 952 mSDtfsCounter, 2926 mSDsluCounter, 3798 mSDsCounter, 0 mSdLazyCounter, 3315 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2926 SdHoareTripleChecker+Valid, 4750 SdHoareTripleChecker+Invalid, 3318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:37,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2926 Valid, 4750 Invalid, 3318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3315 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-05 18:51:37,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8264 states. [2025-02-05 18:51:37,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8264 to 8262. [2025-02-05 18:51:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8262 states, 8261 states have (on average 1.4918290763830044) internal successors, (12324), 8261 states have internal predecessors, (12324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:37,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8262 states to 8262 states and 12324 transitions. [2025-02-05 18:51:37,340 INFO L78 Accepts]: Start accepts. Automaton has 8262 states and 12324 transitions. Word has length 366 [2025-02-05 18:51:37,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:37,340 INFO L471 AbstractCegarLoop]: Abstraction has 8262 states and 12324 transitions. [2025-02-05 18:51:37,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.75) internal successors, (366), 8 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:37,341 INFO L276 IsEmpty]: Start isEmpty. Operand 8262 states and 12324 transitions. [2025-02-05 18:51:37,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2025-02-05 18:51:37,345 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:37,345 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] [2025-02-05 18:51:37,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-05 18:51:37,346 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:37,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:37,346 INFO L85 PathProgramCache]: Analyzing trace with hash -900745124, now seen corresponding path program 1 times [2025-02-05 18:51:37,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:37,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918728965] [2025-02-05 18:51:37,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:37,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:37,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 366 statements into 1 equivalence classes. [2025-02-05 18:51:37,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 366 of 366 statements. [2025-02-05 18:51:37,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:37,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:37,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:37,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:37,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918728965] [2025-02-05 18:51:37,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918728965] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:37,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:37,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 18:51:37,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945841458] [2025-02-05 18:51:37,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:37,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 18:51:37,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:37,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 18:51:37,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 18:51:37,899 INFO L87 Difference]: Start difference. First operand 8262 states and 12324 transitions. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:38,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:38,291 INFO L93 Difference]: Finished difference Result 16366 states and 24408 transitions. [2025-02-05 18:51:38,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 18:51:38,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 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 366 [2025-02-05 18:51:38,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:38,297 INFO L225 Difference]: With dead ends: 16366 [2025-02-05 18:51:38,297 INFO L226 Difference]: Without dead ends: 8278 [2025-02-05 18:51:38,303 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 [2025-02-05 18:51:38,303 INFO L435 NwaCegarLoop]: 1344 mSDtfsCounter, 0 mSDsluCounter, 2663 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4007 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:38,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4007 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 18:51:38,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8278 states. [2025-02-05 18:51:38,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8278 to 8278. [2025-02-05 18:51:38,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8278 states, 8277 states have (on average 1.4908783375619186) internal successors, (12340), 8277 states have internal predecessors, (12340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:38,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8278 states to 8278 states and 12340 transitions. [2025-02-05 18:51:38,352 INFO L78 Accepts]: Start accepts. Automaton has 8278 states and 12340 transitions. Word has length 366 [2025-02-05 18:51:38,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:38,352 INFO L471 AbstractCegarLoop]: Abstraction has 8278 states and 12340 transitions. [2025-02-05 18:51:38,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand 8278 states and 12340 transitions. [2025-02-05 18:51:38,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2025-02-05 18:51:38,357 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:38,357 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] [2025-02-05 18:51:38,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-05 18:51:38,357 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:38,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:38,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1192414762, now seen corresponding path program 1 times [2025-02-05 18:51:38,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:38,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664572860] [2025-02-05 18:51:38,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:38,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:38,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 367 statements into 1 equivalence classes. [2025-02-05 18:51:39,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 367 of 367 statements. [2025-02-05 18:51:39,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:39,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:39,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:39,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664572860] [2025-02-05 18:51:39,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664572860] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:39,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:39,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 18:51:39,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061949022] [2025-02-05 18:51:39,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:39,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 18:51:39,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:39,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 18:51:39,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:51:39,985 INFO L87 Difference]: Start difference. First operand 8278 states and 12340 transitions. Second operand has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:40,366 INFO L93 Difference]: Finished difference Result 16430 states and 24492 transitions. [2025-02-05 18:51:40,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 18:51:40,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 0 states have call successors, (0), 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 367 [2025-02-05 18:51:40,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:40,371 INFO L225 Difference]: With dead ends: 16430 [2025-02-05 18:51:40,371 INFO L226 Difference]: Without dead ends: 8318 [2025-02-05 18:51:40,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 18:51:40,377 INFO L435 NwaCegarLoop]: 1341 mSDtfsCounter, 4 mSDsluCounter, 2660 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4001 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:40,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4001 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 18:51:40,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8318 states. [2025-02-05 18:51:40,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8318 to 8310. [2025-02-05 18:51:40,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8310 states, 8309 states have (on average 1.4899506559152726) internal successors, (12380), 8309 states have internal predecessors, (12380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:40,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8310 states to 8310 states and 12380 transitions. [2025-02-05 18:51:40,424 INFO L78 Accepts]: Start accepts. Automaton has 8310 states and 12380 transitions. Word has length 367 [2025-02-05 18:51:40,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:40,424 INFO L471 AbstractCegarLoop]: Abstraction has 8310 states and 12380 transitions. [2025-02-05 18:51:40,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:40,425 INFO L276 IsEmpty]: Start isEmpty. Operand 8310 states and 12380 transitions. [2025-02-05 18:51:40,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2025-02-05 18:51:40,429 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:40,429 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] [2025-02-05 18:51:40,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-05 18:51:40,429 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:40,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:40,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1997975207, now seen corresponding path program 1 times [2025-02-05 18:51:40,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:40,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843020133] [2025-02-05 18:51:40,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:40,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:40,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 367 statements into 1 equivalence classes. [2025-02-05 18:51:42,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 367 of 367 statements. [2025-02-05 18:51:42,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:42,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:43,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:43,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:43,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843020133] [2025-02-05 18:51:43,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843020133] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:43,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:43,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 18:51:43,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738620724] [2025-02-05 18:51:43,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:43,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 18:51:43,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:43,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 18:51:43,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 18:51:43,600 INFO L87 Difference]: Start difference. First operand 8310 states and 12380 transitions. Second operand has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:44,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:44,395 INFO L93 Difference]: Finished difference Result 19354 states and 28800 transitions. [2025-02-05 18:51:44,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 18:51:44,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 0 states have call successors, (0), 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 367 [2025-02-05 18:51:44,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:44,406 INFO L225 Difference]: With dead ends: 19354 [2025-02-05 18:51:44,407 INFO L226 Difference]: Without dead ends: 14654 [2025-02-05 18:51:44,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-05 18:51:44,413 INFO L435 NwaCegarLoop]: 1719 mSDtfsCounter, 819 mSDsluCounter, 8202 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 9921 SdHoareTripleChecker+Invalid, 2069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:44,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 9921 Invalid, 2069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 18:51:44,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14654 states. [2025-02-05 18:51:44,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14654 to 13758. [2025-02-05 18:51:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13758 states, 13757 states have (on average 1.4918950352547793) internal successors, (20524), 13757 states have internal predecessors, (20524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:44,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13758 states to 13758 states and 20524 transitions. [2025-02-05 18:51:44,512 INFO L78 Accepts]: Start accepts. Automaton has 13758 states and 20524 transitions. Word has length 367 [2025-02-05 18:51:44,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:44,513 INFO L471 AbstractCegarLoop]: Abstraction has 13758 states and 20524 transitions. [2025-02-05 18:51:44,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:44,513 INFO L276 IsEmpty]: Start isEmpty. Operand 13758 states and 20524 transitions. [2025-02-05 18:51:44,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2025-02-05 18:51:44,520 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:44,521 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] [2025-02-05 18:51:44,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-05 18:51:44,521 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:44,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:44,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1886646149, now seen corresponding path program 1 times [2025-02-05 18:51:44,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:44,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013945471] [2025-02-05 18:51:44,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:44,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:44,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 368 statements into 1 equivalence classes. [2025-02-05 18:51:45,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 368 of 368 statements. [2025-02-05 18:51:45,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 18:51:45,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 18:51:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 18:51:46,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 18:51:46,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013945471] [2025-02-05 18:51:46,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013945471] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 18:51:46,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 18:51:46,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 18:51:46,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258664238] [2025-02-05 18:51:46,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 18:51:46,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 18:51:46,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 18:51:46,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 18:51:46,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-05 18:51:46,602 INFO L87 Difference]: Start difference. First operand 13758 states and 20524 transitions. Second operand has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:48,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 18:51:48,079 INFO L93 Difference]: Finished difference Result 30829 states and 45957 transitions. [2025-02-05 18:51:48,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-05 18:51:48,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 0 states have call successors, (0), 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 368 [2025-02-05 18:51:48,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 18:51:48,094 INFO L225 Difference]: With dead ends: 30829 [2025-02-05 18:51:48,094 INFO L226 Difference]: Without dead ends: 16759 [2025-02-05 18:51:48,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-02-05 18:51:48,106 INFO L435 NwaCegarLoop]: 2349 mSDtfsCounter, 1140 mSDsluCounter, 12803 mSDsCounter, 0 mSdLazyCounter, 3868 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 15152 SdHoareTripleChecker+Invalid, 3924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-05 18:51:48,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 15152 Invalid, 3924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3868 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-05 18:51:48,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16759 states. [2025-02-05 18:51:48,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16759 to 16735. [2025-02-05 18:51:48,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16735 states, 16734 states have (on average 1.4824309788454644) internal successors, (24807), 16734 states have internal predecessors, (24807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:48,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16735 states to 16735 states and 24807 transitions. [2025-02-05 18:51:48,217 INFO L78 Accepts]: Start accepts. Automaton has 16735 states and 24807 transitions. Word has length 368 [2025-02-05 18:51:48,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 18:51:48,218 INFO L471 AbstractCegarLoop]: Abstraction has 16735 states and 24807 transitions. [2025-02-05 18:51:48,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 18:51:48,218 INFO L276 IsEmpty]: Start isEmpty. Operand 16735 states and 24807 transitions. [2025-02-05 18:51:48,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2025-02-05 18:51:48,227 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 18:51:48,227 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] [2025-02-05 18:51:48,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-02-05 18:51:48,227 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 18:51:48,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 18:51:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1677322193, now seen corresponding path program 1 times [2025-02-05 18:51:48,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 18:51:48,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463464789] [2025-02-05 18:51:48,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 18:51:48,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 18:51:48,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 368 statements into 1 equivalence classes.