./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_bpbs_p3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_bpbs_p3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 404ac2bd3423bef5ce605181ef24be34b1a7af016e0b24dd5c9fcdb327055474 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 07:10:59,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 07:10:59,195 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 07:10:59,202 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 07:10:59,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 07:10:59,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 07:10:59,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 07:10:59,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 07:10:59,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 07:10:59,239 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 07:10:59,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 07:10:59,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 07:10:59,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 07:10:59,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 07:10:59,243 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 07:10:59,243 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 07:10:59,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 07:10:59,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 07:10:59,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 07:10:59,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 07:10:59,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 07:10:59,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 07:10:59,248 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 07:10:59,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 07:10:59,248 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 07:10:59,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 07:10:59,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 07:10:59,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 07:10:59,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 07:10:59,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:10:59,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 07:10:59,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 07:10:59,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 07:10:59,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 07:10:59,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 07:10:59,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 07:10:59,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 07:10:59,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 07:10:59,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 07:10:59,262 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 404ac2bd3423bef5ce605181ef24be34b1a7af016e0b24dd5c9fcdb327055474 [2024-10-14 07:10:59,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 07:10:59,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 07:10:59,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 07:10:59,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 07:10:59,608 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 07:10:59,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_bpbs_p3.c [2024-10-14 07:11:01,030 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 07:11:01,365 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 07:11:01,366 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_bpbs_p3.c [2024-10-14 07:11:01,382 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7b5386a6/6383485c543b408d96c08fb5ea59309f/FLAGee4ebf5d6 [2024-10-14 07:11:01,627 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7b5386a6/6383485c543b408d96c08fb5ea59309f [2024-10-14 07:11:01,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 07:11:01,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 07:11:01,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 07:11:01,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 07:11:01,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 07:11:01,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:11:01" (1/1) ... [2024-10-14 07:11:01,639 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a55109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:01, skipping insertion in model container [2024-10-14 07:11:01,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:11:01" (1/1) ... [2024-10-14 07:11:01,710 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 07:11:01,917 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_bpbs_p3.c[1258,1271] [2024-10-14 07:11:02,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:11:02,324 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 07:11:02,335 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_bpbs_p3.c[1258,1271] [2024-10-14 07:11:02,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:11:02,541 INFO L204 MainTranslator]: Completed translation [2024-10-14 07:11:02,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02 WrapperNode [2024-10-14 07:11:02,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 07:11:02,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 07:11:02,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 07:11:02,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 07:11:02,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:02,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:03,121 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4447 [2024-10-14 07:11:03,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 07:11:03,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 07:11:03,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 07:11:03,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 07:11:03,133 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:03,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:03,257 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:03,386 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 07:11:03,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:03,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:03,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:03,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:03,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:03,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:03,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 07:11:03,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 07:11:03,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 07:11:03,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 07:11:03,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (1/1) ... [2024-10-14 07:11:03,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:11:04,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:11:04,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 07:11:04,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 07:11:04,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 07:11:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 07:11:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 07:11:04,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 07:11:04,548 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 07:11:04,554 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 07:11:08,135 INFO L? ?]: Removed 2795 outVars from TransFormulas that were not future-live. [2024-10-14 07:11:08,136 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 07:11:08,246 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 07:11:08,247 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 07:11:08,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:11:08 BoogieIcfgContainer [2024-10-14 07:11:08,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 07:11:08,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 07:11:08,250 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 07:11:08,253 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 07:11:08,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:11:01" (1/3) ... [2024-10-14 07:11:08,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a80ee18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:11:08, skipping insertion in model container [2024-10-14 07:11:08,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:02" (2/3) ... [2024-10-14 07:11:08,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a80ee18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:11:08, skipping insertion in model container [2024-10-14 07:11:08,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:11:08" (3/3) ... [2024-10-14 07:11:08,255 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_bpbs_p3.c [2024-10-14 07:11:08,271 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 07:11:08,272 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 07:11:08,365 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 07:11:08,376 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;@6186d35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 07:11:08,377 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 07:11:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 1091 states, 1089 states have (on average 1.500459136822773) internal successors, (1634), 1090 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-14 07:11:08,401 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:08,402 INFO L215 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] [2024-10-14 07:11:08,403 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:08,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:08,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1190133140, now seen corresponding path program 1 times [2024-10-14 07:11:08,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:08,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104257684] [2024-10-14 07:11:08,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:08,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:09,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:09,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104257684] [2024-10-14 07:11:09,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104257684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:09,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:09,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:09,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48471085] [2024-10-14 07:11:09,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:09,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:11:09,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:09,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:11:09,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:09,926 INFO L87 Difference]: Start difference. First operand has 1091 states, 1089 states have (on average 1.500459136822773) internal successors, (1634), 1090 states have internal predecessors, (1634), 0 states have call successors, (0), 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 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:10,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:10,067 INFO L93 Difference]: Finished difference Result 2046 states and 3066 transitions. [2024-10-14 07:11:10,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:10,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-10-14 07:11:10,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:10,099 INFO L225 Difference]: With dead ends: 2046 [2024-10-14 07:11:10,099 INFO L226 Difference]: Without dead ends: 1092 [2024-10-14 07:11:10,111 INFO L431 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 [2024-10-14 07:11:10,115 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3253 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4882 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:10,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4882 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:10,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-10-14 07:11:10,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1092. [2024-10-14 07:11:10,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1091 states have (on average 1.4977085242896426) internal successors, (1634), 1091 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:10,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1634 transitions. [2024-10-14 07:11:10,207 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1634 transitions. Word has length 168 [2024-10-14 07:11:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:10,211 INFO L471 AbstractCegarLoop]: Abstraction has 1092 states and 1634 transitions. [2024-10-14 07:11:10,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:10,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1634 transitions. [2024-10-14 07:11:10,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-14 07:11:10,218 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:10,218 INFO L215 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] [2024-10-14 07:11:10,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 07:11:10,219 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:10,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:10,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1758882105, now seen corresponding path program 1 times [2024-10-14 07:11:10,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:10,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860999641] [2024-10-14 07:11:10,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:10,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:10,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:10,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:10,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860999641] [2024-10-14 07:11:10,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860999641] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:10,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:10,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:10,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093822889] [2024-10-14 07:11:10,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:10,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:11:10,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:10,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:11:10,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:10,894 INFO L87 Difference]: Start difference. First operand 1092 states and 1634 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:10,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:10,950 INFO L93 Difference]: Finished difference Result 2049 states and 3066 transitions. [2024-10-14 07:11:10,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:10,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-10-14 07:11:10,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:10,956 INFO L225 Difference]: With dead ends: 2049 [2024-10-14 07:11:10,956 INFO L226 Difference]: Without dead ends: 1094 [2024-10-14 07:11:10,958 INFO L431 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 [2024-10-14 07:11:10,959 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:10,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4879 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:10,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2024-10-14 07:11:10,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2024-10-14 07:11:10,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1093 states have (on average 1.4967978042086) internal successors, (1636), 1093 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:10,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1636 transitions. [2024-10-14 07:11:10,987 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1636 transitions. Word has length 169 [2024-10-14 07:11:10,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:10,988 INFO L471 AbstractCegarLoop]: Abstraction has 1094 states and 1636 transitions. [2024-10-14 07:11:10,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:10,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1636 transitions. [2024-10-14 07:11:10,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 07:11:10,991 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:10,991 INFO L215 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] [2024-10-14 07:11:10,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 07:11:10,992 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:10,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:10,992 INFO L85 PathProgramCache]: Analyzing trace with hash 211264717, now seen corresponding path program 1 times [2024-10-14 07:11:10,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:10,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022580393] [2024-10-14 07:11:10,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:10,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:12,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:12,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:12,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022580393] [2024-10-14 07:11:12,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022580393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:12,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:12,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:12,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522730656] [2024-10-14 07:11:12,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:12,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:12,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:12,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:12,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:12,120 INFO L87 Difference]: Start difference. First operand 1094 states and 1636 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:12,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:12,221 INFO L93 Difference]: Finished difference Result 2059 states and 3079 transitions. [2024-10-14 07:11:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:12,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2024-10-14 07:11:12,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:12,230 INFO L225 Difference]: With dead ends: 2059 [2024-10-14 07:11:12,230 INFO L226 Difference]: Without dead ends: 1102 [2024-10-14 07:11:12,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:12,236 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 6 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6494 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:12,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6494 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:12,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-10-14 07:11:12,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1100. [2024-10-14 07:11:12,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 1.4959053685168335) internal successors, (1644), 1099 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:12,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1644 transitions. [2024-10-14 07:11:12,265 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1644 transitions. Word has length 170 [2024-10-14 07:11:12,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:12,266 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1644 transitions. [2024-10-14 07:11:12,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:12,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1644 transitions. [2024-10-14 07:11:12,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 07:11:12,270 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:12,272 INFO L215 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] [2024-10-14 07:11:12,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 07:11:12,272 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:12,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:12,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1149634463, now seen corresponding path program 1 times [2024-10-14 07:11:12,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:12,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852422446] [2024-10-14 07:11:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:12,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:13,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:13,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852422446] [2024-10-14 07:11:13,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852422446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:13,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:13,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:13,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188399999] [2024-10-14 07:11:13,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:13,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:13,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:13,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:13,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:13,349 INFO L87 Difference]: Start difference. First operand 1100 states and 1644 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:13,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:13,441 INFO L93 Difference]: Finished difference Result 2071 states and 3095 transitions. [2024-10-14 07:11:13,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:13,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-10-14 07:11:13,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:13,446 INFO L225 Difference]: With dead ends: 2071 [2024-10-14 07:11:13,446 INFO L226 Difference]: Without dead ends: 1108 [2024-10-14 07:11:13,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:13,449 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 6 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6494 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:13,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6494 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:13,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-10-14 07:11:13,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1106. [2024-10-14 07:11:13,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1105 states have (on average 1.4950226244343892) internal successors, (1652), 1105 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:13,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1652 transitions. [2024-10-14 07:11:13,478 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1652 transitions. Word has length 171 [2024-10-14 07:11:13,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:13,479 INFO L471 AbstractCegarLoop]: Abstraction has 1106 states and 1652 transitions. [2024-10-14 07:11:13,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:13,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1652 transitions. [2024-10-14 07:11:13,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 07:11:13,481 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:13,482 INFO L215 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] [2024-10-14 07:11:13,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 07:11:13,482 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:13,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:13,484 INFO L85 PathProgramCache]: Analyzing trace with hash 480703424, now seen corresponding path program 1 times [2024-10-14 07:11:13,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:13,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533501109] [2024-10-14 07:11:13,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:13,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:14,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:14,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533501109] [2024-10-14 07:11:14,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533501109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:14,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:14,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:11:14,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370964385] [2024-10-14 07:11:14,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:14,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:11:14,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:14,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:11:14,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:14,762 INFO L87 Difference]: Start difference. First operand 1106 states and 1652 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:14,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:14,964 INFO L93 Difference]: Finished difference Result 2083 states and 3111 transitions. [2024-10-14 07:11:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 07:11:14,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-10-14 07:11:14,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:14,969 INFO L225 Difference]: With dead ends: 2083 [2024-10-14 07:11:14,969 INFO L226 Difference]: Without dead ends: 1114 [2024-10-14 07:11:14,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:14,971 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 1555 mSDsluCounter, 6404 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 8008 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:14,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 8008 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:14,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2024-10-14 07:11:14,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1111. [2024-10-14 07:11:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1110 states have (on average 1.4936936936936938) internal successors, (1658), 1110 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1658 transitions. [2024-10-14 07:11:14,992 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1658 transitions. Word has length 172 [2024-10-14 07:11:14,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:14,992 INFO L471 AbstractCegarLoop]: Abstraction has 1111 states and 1658 transitions. [2024-10-14 07:11:14,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:14,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1658 transitions. [2024-10-14 07:11:14,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-14 07:11:14,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:14,995 INFO L215 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] [2024-10-14 07:11:14,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 07:11:14,995 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:14,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:14,996 INFO L85 PathProgramCache]: Analyzing trace with hash -713511787, now seen corresponding path program 1 times [2024-10-14 07:11:14,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:14,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244775522] [2024-10-14 07:11:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:14,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:15,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:15,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:15,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244775522] [2024-10-14 07:11:15,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244775522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:15,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:15,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 07:11:15,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154503889] [2024-10-14 07:11:15,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:15,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 07:11:15,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:15,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 07:11:15,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:15,767 INFO L87 Difference]: Start difference. First operand 1111 states and 1658 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:15,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:15,891 INFO L93 Difference]: Finished difference Result 2115 states and 3154 transitions. [2024-10-14 07:11:15,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 07:11:15,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-10-14 07:11:15,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:15,897 INFO L225 Difference]: With dead ends: 2115 [2024-10-14 07:11:15,898 INFO L226 Difference]: Without dead ends: 1141 [2024-10-14 07:11:15,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:15,902 INFO L432 NwaCegarLoop]: 1621 mSDtfsCounter, 23 mSDsluCounter, 8119 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 9740 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:15,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 9740 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:15,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2024-10-14 07:11:16,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1137. [2024-10-14 07:11:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1136 states have (on average 1.4920774647887325) internal successors, (1695), 1136 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:16,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1695 transitions. [2024-10-14 07:11:16,012 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1695 transitions. Word has length 173 [2024-10-14 07:11:16,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:16,012 INFO L471 AbstractCegarLoop]: Abstraction has 1137 states and 1695 transitions. [2024-10-14 07:11:16,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:16,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1695 transitions. [2024-10-14 07:11:16,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-14 07:11:16,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:16,014 INFO L215 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] [2024-10-14 07:11:16,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 07:11:16,015 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:16,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:16,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1458530862, now seen corresponding path program 1 times [2024-10-14 07:11:16,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:16,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688915038] [2024-10-14 07:11:16,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:16,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:17,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:17,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:17,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688915038] [2024-10-14 07:11:17,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688915038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:17,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:17,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 07:11:17,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353229107] [2024-10-14 07:11:17,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:17,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 07:11:17,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:17,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 07:11:17,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-14 07:11:17,416 INFO L87 Difference]: Start difference. First operand 1137 states and 1695 transitions. Second operand has 10 states, 10 states have (on average 17.3) internal successors, (173), 10 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:17,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:17,590 INFO L93 Difference]: Finished difference Result 2151 states and 3204 transitions. [2024-10-14 07:11:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 07:11:17,592 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.3) internal successors, (173), 10 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-10-14 07:11:17,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:17,596 INFO L225 Difference]: With dead ends: 2151 [2024-10-14 07:11:17,597 INFO L226 Difference]: Without dead ends: 1151 [2024-10-14 07:11:17,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-14 07:11:17,600 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 36 mSDsluCounter, 9745 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 11362 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:17,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 11362 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:17,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2024-10-14 07:11:17,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1141. [2024-10-14 07:11:17,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1140 states have (on average 1.4921052631578948) internal successors, (1701), 1140 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:17,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1701 transitions. [2024-10-14 07:11:17,622 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1701 transitions. Word has length 173 [2024-10-14 07:11:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:17,622 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1701 transitions. [2024-10-14 07:11:17,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.3) internal successors, (173), 10 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:17,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1701 transitions. [2024-10-14 07:11:17,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-14 07:11:17,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:17,625 INFO L215 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] [2024-10-14 07:11:17,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 07:11:17,625 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:17,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:17,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1437410695, now seen corresponding path program 1 times [2024-10-14 07:11:17,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:17,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054059469] [2024-10-14 07:11:17,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:17,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:18,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:18,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:18,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054059469] [2024-10-14 07:11:18,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054059469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:18,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:18,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:18,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434709502] [2024-10-14 07:11:18,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:18,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:18,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:18,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:18,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:18,533 INFO L87 Difference]: Start difference. First operand 1141 states and 1701 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:18,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:18,684 INFO L93 Difference]: Finished difference Result 2406 states and 3582 transitions. [2024-10-14 07:11:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:11:18,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-10-14 07:11:18,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:18,689 INFO L225 Difference]: With dead ends: 2406 [2024-10-14 07:11:18,689 INFO L226 Difference]: Without dead ends: 1402 [2024-10-14 07:11:18,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:18,692 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 2143 mSDsluCounter, 4807 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 6412 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:18,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2143 Valid, 6412 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:18,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2024-10-14 07:11:18,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1292. [2024-10-14 07:11:18,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1291 states have (on average 1.4903175832687838) internal successors, (1924), 1291 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:18,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1924 transitions. [2024-10-14 07:11:18,719 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1924 transitions. Word has length 173 [2024-10-14 07:11:18,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:18,720 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 1924 transitions. [2024-10-14 07:11:18,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:18,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1924 transitions. [2024-10-14 07:11:18,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-14 07:11:18,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:18,722 INFO L215 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] [2024-10-14 07:11:18,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 07:11:18,723 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:18,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:18,723 INFO L85 PathProgramCache]: Analyzing trace with hash 2016905315, now seen corresponding path program 1 times [2024-10-14 07:11:18,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:18,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555362184] [2024-10-14 07:11:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:18,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:19,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:19,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555362184] [2024-10-14 07:11:19,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555362184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:19,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:19,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:19,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847265536] [2024-10-14 07:11:19,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:19,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:11:19,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:19,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:11:19,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:19,083 INFO L87 Difference]: Start difference. First operand 1292 states and 1924 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:19,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:19,132 INFO L93 Difference]: Finished difference Result 2330 states and 3469 transitions. [2024-10-14 07:11:19,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:19,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-10-14 07:11:19,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:19,138 INFO L225 Difference]: With dead ends: 2330 [2024-10-14 07:11:19,139 INFO L226 Difference]: Without dead ends: 1296 [2024-10-14 07:11:19,140 INFO L431 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 [2024-10-14 07:11:19,142 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:19,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4879 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:19,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2024-10-14 07:11:19,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1296. [2024-10-14 07:11:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 1.4888030888030888) internal successors, (1928), 1295 states have internal predecessors, (1928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1928 transitions. [2024-10-14 07:11:19,169 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1928 transitions. Word has length 173 [2024-10-14 07:11:19,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:19,170 INFO L471 AbstractCegarLoop]: Abstraction has 1296 states and 1928 transitions. [2024-10-14 07:11:19,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:19,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1928 transitions. [2024-10-14 07:11:19,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-14 07:11:19,172 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:19,173 INFO L215 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] [2024-10-14 07:11:19,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 07:11:19,174 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:19,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:19,175 INFO L85 PathProgramCache]: Analyzing trace with hash 533905031, now seen corresponding path program 1 times [2024-10-14 07:11:19,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:19,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648038007] [2024-10-14 07:11:19,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:19,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:20,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:20,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648038007] [2024-10-14 07:11:20,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648038007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:20,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:20,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 07:11:20,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415767839] [2024-10-14 07:11:20,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:20,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 07:11:20,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:20,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 07:11:20,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:20,139 INFO L87 Difference]: Start difference. First operand 1296 states and 1928 transitions. Second operand has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:20,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:20,293 INFO L93 Difference]: Finished difference Result 2333 states and 3471 transitions. [2024-10-14 07:11:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 07:11:20,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-10-14 07:11:20,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:20,299 INFO L225 Difference]: With dead ends: 2333 [2024-10-14 07:11:20,300 INFO L226 Difference]: Without dead ends: 1327 [2024-10-14 07:11:20,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:20,302 INFO L432 NwaCegarLoop]: 1620 mSDtfsCounter, 22 mSDsluCounter, 9708 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11328 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:20,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11328 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:20,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-10-14 07:11:20,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1323. [2024-10-14 07:11:20,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1322 states have (on average 1.4878971255673223) internal successors, (1967), 1322 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:20,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1967 transitions. [2024-10-14 07:11:20,334 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1967 transitions. Word has length 174 [2024-10-14 07:11:20,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:20,334 INFO L471 AbstractCegarLoop]: Abstraction has 1323 states and 1967 transitions. [2024-10-14 07:11:20,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:20,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1967 transitions. [2024-10-14 07:11:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-14 07:11:20,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:20,338 INFO L215 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] [2024-10-14 07:11:20,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 07:11:20,339 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:20,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:20,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2077402197, now seen corresponding path program 1 times [2024-10-14 07:11:20,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:20,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007326663] [2024-10-14 07:11:20,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:20,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:20,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:20,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007326663] [2024-10-14 07:11:20,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007326663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:20,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:20,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:20,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154907403] [2024-10-14 07:11:20,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:20,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:11:20,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:20,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:11:20,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:20,831 INFO L87 Difference]: Start difference. First operand 1323 states and 1967 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:20,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:20,893 INFO L93 Difference]: Finished difference Result 2360 states and 3510 transitions. [2024-10-14 07:11:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:20,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-10-14 07:11:20,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:20,899 INFO L225 Difference]: With dead ends: 2360 [2024-10-14 07:11:20,900 INFO L226 Difference]: Without dead ends: 1327 [2024-10-14 07:11:20,901 INFO L431 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 [2024-10-14 07:11:20,902 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:20,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4879 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:20,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-10-14 07:11:20,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1327. [2024-10-14 07:11:20,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1326 states have (on average 1.4864253393665159) internal successors, (1971), 1326 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1971 transitions. [2024-10-14 07:11:20,932 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1971 transitions. Word has length 174 [2024-10-14 07:11:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:20,933 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 1971 transitions. [2024-10-14 07:11:20,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1971 transitions. [2024-10-14 07:11:20,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-14 07:11:20,936 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:20,936 INFO L215 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] [2024-10-14 07:11:20,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 07:11:20,937 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:20,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:20,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1133056480, now seen corresponding path program 1 times [2024-10-14 07:11:20,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:20,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629429445] [2024-10-14 07:11:20,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:20,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:22,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:22,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:22,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629429445] [2024-10-14 07:11:22,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629429445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:22,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:22,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:11:22,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404696035] [2024-10-14 07:11:22,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:22,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:11:22,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:22,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:11:22,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:22,370 INFO L87 Difference]: Start difference. First operand 1327 states and 1971 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:22,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:22,545 INFO L93 Difference]: Finished difference Result 2372 states and 3524 transitions. [2024-10-14 07:11:22,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 07:11:22,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-10-14 07:11:22,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:22,551 INFO L225 Difference]: With dead ends: 2372 [2024-10-14 07:11:22,551 INFO L226 Difference]: Without dead ends: 1335 [2024-10-14 07:11:22,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:22,553 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 1528 mSDsluCounter, 4806 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 6410 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:22,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 6410 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:22,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2024-10-14 07:11:22,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1332. [2024-10-14 07:11:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 1.4853493613824191) internal successors, (1977), 1331 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1977 transitions. [2024-10-14 07:11:22,577 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1977 transitions. Word has length 174 [2024-10-14 07:11:22,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:22,577 INFO L471 AbstractCegarLoop]: Abstraction has 1332 states and 1977 transitions. [2024-10-14 07:11:22,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:22,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1977 transitions. [2024-10-14 07:11:22,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-14 07:11:22,579 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:22,579 INFO L215 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] [2024-10-14 07:11:22,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 07:11:22,580 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:22,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:22,580 INFO L85 PathProgramCache]: Analyzing trace with hash -997394891, now seen corresponding path program 1 times [2024-10-14 07:11:22,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:22,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323533480] [2024-10-14 07:11:22,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:22,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:23,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:23,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:23,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323533480] [2024-10-14 07:11:23,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323533480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:23,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:23,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:11:23,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212063118] [2024-10-14 07:11:23,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:23,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:11:23,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:23,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:11:23,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:23,703 INFO L87 Difference]: Start difference. First operand 1332 states and 1977 transitions. Second operand has 7 states, 7 states have (on average 25.0) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:23,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:23,901 INFO L93 Difference]: Finished difference Result 2381 states and 3535 transitions. [2024-10-14 07:11:23,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 07:11:23,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.0) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2024-10-14 07:11:23,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:23,907 INFO L225 Difference]: With dead ends: 2381 [2024-10-14 07:11:23,907 INFO L226 Difference]: Without dead ends: 1339 [2024-10-14 07:11:23,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:23,910 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 1476 mSDsluCounter, 6390 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 7990 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:23,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 7990 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:23,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2024-10-14 07:11:23,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1338. [2024-10-14 07:11:23,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 1.4839192221391175) internal successors, (1984), 1337 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:23,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1984 transitions. [2024-10-14 07:11:23,935 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1984 transitions. Word has length 175 [2024-10-14 07:11:23,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:23,936 INFO L471 AbstractCegarLoop]: Abstraction has 1338 states and 1984 transitions. [2024-10-14 07:11:23,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.0) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:23,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1984 transitions. [2024-10-14 07:11:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-14 07:11:23,938 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:23,938 INFO L215 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] [2024-10-14 07:11:23,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 07:11:23,938 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:23,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:23,939 INFO L85 PathProgramCache]: Analyzing trace with hash 199587437, now seen corresponding path program 1 times [2024-10-14 07:11:23,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:23,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165067505] [2024-10-14 07:11:23,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:23,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:24,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:24,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165067505] [2024-10-14 07:11:24,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165067505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:24,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:24,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:24,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712454495] [2024-10-14 07:11:24,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:24,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:24,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:24,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:24,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:24,334 INFO L87 Difference]: Start difference. First operand 1338 states and 1984 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:24,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:24,394 INFO L93 Difference]: Finished difference Result 2404 states and 3565 transitions. [2024-10-14 07:11:24,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:24,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-10-14 07:11:24,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:24,400 INFO L225 Difference]: With dead ends: 2404 [2024-10-14 07:11:24,400 INFO L226 Difference]: Without dead ends: 1356 [2024-10-14 07:11:24,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:24,402 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 16 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:24,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6503 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:24,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2024-10-14 07:11:24,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 1356. [2024-10-14 07:11:24,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1355 states have (on average 1.4833948339483394) internal successors, (2010), 1355 states have internal predecessors, (2010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:24,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 2010 transitions. [2024-10-14 07:11:24,427 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 2010 transitions. Word has length 176 [2024-10-14 07:11:24,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:24,427 INFO L471 AbstractCegarLoop]: Abstraction has 1356 states and 2010 transitions. [2024-10-14 07:11:24,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:24,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 2010 transitions. [2024-10-14 07:11:24,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-14 07:11:24,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:24,430 INFO L215 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] [2024-10-14 07:11:24,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 07:11:24,430 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:24,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:24,430 INFO L85 PathProgramCache]: Analyzing trace with hash 710075618, now seen corresponding path program 1 times [2024-10-14 07:11:24,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:24,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110229961] [2024-10-14 07:11:24,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:24,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:25,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:25,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:25,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110229961] [2024-10-14 07:11:25,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110229961] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:25,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:25,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:25,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359413302] [2024-10-14 07:11:25,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:25,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:25,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:25,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:25,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:25,690 INFO L87 Difference]: Start difference. First operand 1356 states and 2010 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:25,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:25,831 INFO L93 Difference]: Finished difference Result 2443 states and 3619 transitions. [2024-10-14 07:11:25,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:25,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-10-14 07:11:25,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:25,836 INFO L225 Difference]: With dead ends: 2443 [2024-10-14 07:11:25,836 INFO L226 Difference]: Without dead ends: 1366 [2024-10-14 07:11:25,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:25,839 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 1555 mSDsluCounter, 3202 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:25,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 4806 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:25,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2024-10-14 07:11:25,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1366. [2024-10-14 07:11:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1365 states have (on average 1.4813186813186814) internal successors, (2022), 1365 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:25,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 2022 transitions. [2024-10-14 07:11:25,863 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 2022 transitions. Word has length 176 [2024-10-14 07:11:25,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:25,864 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 2022 transitions. [2024-10-14 07:11:25,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:25,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 2022 transitions. [2024-10-14 07:11:25,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-14 07:11:25,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:25,866 INFO L215 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] [2024-10-14 07:11:25,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 07:11:25,867 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:25,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:25,867 INFO L85 PathProgramCache]: Analyzing trace with hash 12134878, now seen corresponding path program 1 times [2024-10-14 07:11:25,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:25,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687678475] [2024-10-14 07:11:25,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:25,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:26,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:26,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687678475] [2024-10-14 07:11:26,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687678475] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:26,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:26,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:26,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034116421] [2024-10-14 07:11:26,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:26,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:26,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:26,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:26,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:26,259 INFO L87 Difference]: Start difference. First operand 1366 states and 2022 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:26,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:26,320 INFO L93 Difference]: Finished difference Result 2486 states and 3677 transitions. [2024-10-14 07:11:26,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:26,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-10-14 07:11:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:26,326 INFO L225 Difference]: With dead ends: 2486 [2024-10-14 07:11:26,326 INFO L226 Difference]: Without dead ends: 1370 [2024-10-14 07:11:26,328 INFO L431 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 [2024-10-14 07:11:26,329 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:26,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6503 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:26,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2024-10-14 07:11:26,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1370. [2024-10-14 07:11:26,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 1.4799123447772096) internal successors, (2026), 1369 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:26,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 2026 transitions. [2024-10-14 07:11:26,361 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 2026 transitions. Word has length 176 [2024-10-14 07:11:26,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:26,361 INFO L471 AbstractCegarLoop]: Abstraction has 1370 states and 2026 transitions. [2024-10-14 07:11:26,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:26,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 2026 transitions. [2024-10-14 07:11:26,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-14 07:11:26,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:26,364 INFO L215 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] [2024-10-14 07:11:26,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 07:11:26,364 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:26,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:26,365 INFO L85 PathProgramCache]: Analyzing trace with hash 322921656, now seen corresponding path program 1 times [2024-10-14 07:11:26,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:26,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293544237] [2024-10-14 07:11:26,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:26,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:27,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:27,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:27,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293544237] [2024-10-14 07:11:27,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293544237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:27,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:27,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:27,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800278998] [2024-10-14 07:11:27,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:27,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:27,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:27,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:27,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:27,178 INFO L87 Difference]: Start difference. First operand 1370 states and 2026 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:27,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:27,242 INFO L93 Difference]: Finished difference Result 2451 states and 3624 transitions. [2024-10-14 07:11:27,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:27,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-10-14 07:11:27,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:27,247 INFO L225 Difference]: With dead ends: 2451 [2024-10-14 07:11:27,248 INFO L226 Difference]: Without dead ends: 1378 [2024-10-14 07:11:27,250 INFO L431 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 [2024-10-14 07:11:27,250 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:27,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6503 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:27,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2024-10-14 07:11:27,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1370. [2024-10-14 07:11:27,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 1.4799123447772096) internal successors, (2026), 1369 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:27,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 2026 transitions. [2024-10-14 07:11:27,280 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 2026 transitions. Word has length 176 [2024-10-14 07:11:27,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:27,281 INFO L471 AbstractCegarLoop]: Abstraction has 1370 states and 2026 transitions. [2024-10-14 07:11:27,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:27,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 2026 transitions. [2024-10-14 07:11:27,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-14 07:11:27,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:27,284 INFO L215 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] [2024-10-14 07:11:27,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 07:11:27,285 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:27,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:27,285 INFO L85 PathProgramCache]: Analyzing trace with hash -518999789, now seen corresponding path program 1 times [2024-10-14 07:11:27,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:27,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523842581] [2024-10-14 07:11:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:27,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:28,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:28,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:28,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523842581] [2024-10-14 07:11:28,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523842581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:28,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:28,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 07:11:28,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129974011] [2024-10-14 07:11:28,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:28,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 07:11:28,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:28,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 07:11:28,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:28,097 INFO L87 Difference]: Start difference. First operand 1370 states and 2026 transitions. Second operand has 8 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:28,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:28,204 INFO L93 Difference]: Finished difference Result 2477 states and 3661 transitions. [2024-10-14 07:11:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 07:11:28,205 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 0 states have call successors, (0), 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 177 [2024-10-14 07:11:28,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:28,210 INFO L225 Difference]: With dead ends: 2477 [2024-10-14 07:11:28,210 INFO L226 Difference]: Without dead ends: 1400 [2024-10-14 07:11:28,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:28,213 INFO L432 NwaCegarLoop]: 1620 mSDtfsCounter, 23 mSDsluCounter, 6523 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 8143 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:28,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 8143 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:28,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-10-14 07:11:28,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1396. [2024-10-14 07:11:28,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1395 states have (on average 1.478853046594982) internal successors, (2063), 1395 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 2063 transitions. [2024-10-14 07:11:28,239 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 2063 transitions. Word has length 177 [2024-10-14 07:11:28,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:28,239 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 2063 transitions. [2024-10-14 07:11:28,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:28,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 2063 transitions. [2024-10-14 07:11:28,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-14 07:11:28,242 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:28,242 INFO L215 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] [2024-10-14 07:11:28,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 07:11:28,242 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:28,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:28,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1783720364, now seen corresponding path program 1 times [2024-10-14 07:11:28,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:28,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488828708] [2024-10-14 07:11:28,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:28,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:28,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:28,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488828708] [2024-10-14 07:11:28,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488828708] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:28,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:28,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:28,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820806128] [2024-10-14 07:11:28,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:28,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:28,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:28,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:28,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:28,854 INFO L87 Difference]: Start difference. First operand 1396 states and 2063 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:29,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:29,606 INFO L93 Difference]: Finished difference Result 2967 states and 4374 transitions. [2024-10-14 07:11:29,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:11:29,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 0 states have call successors, (0), 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 177 [2024-10-14 07:11:29,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:29,613 INFO L225 Difference]: With dead ends: 2967 [2024-10-14 07:11:29,614 INFO L226 Difference]: Without dead ends: 1864 [2024-10-14 07:11:29,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:29,616 INFO L432 NwaCegarLoop]: 1316 mSDtfsCounter, 1816 mSDsluCounter, 3940 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 5256 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:29,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 5256 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 07:11:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2024-10-14 07:11:29,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1864. [2024-10-14 07:11:29,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1864 states, 1863 states have (on average 1.4712828770799786) internal successors, (2741), 1863 states have internal predecessors, (2741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:29,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 2741 transitions. [2024-10-14 07:11:29,649 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 2741 transitions. Word has length 177 [2024-10-14 07:11:29,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:29,649 INFO L471 AbstractCegarLoop]: Abstraction has 1864 states and 2741 transitions. [2024-10-14 07:11:29,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:29,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 2741 transitions. [2024-10-14 07:11:29,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-14 07:11:29,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:29,652 INFO L215 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] [2024-10-14 07:11:29,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 07:11:29,653 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:29,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:29,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1505337339, now seen corresponding path program 1 times [2024-10-14 07:11:29,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:29,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653909429] [2024-10-14 07:11:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:29,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:30,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:30,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:30,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653909429] [2024-10-14 07:11:30,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653909429] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:30,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:30,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:30,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159602918] [2024-10-14 07:11:30,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:30,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:11:30,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:30,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:11:30,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:30,038 INFO L87 Difference]: Start difference. First operand 1864 states and 2741 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:30,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:30,081 INFO L93 Difference]: Finished difference Result 2983 states and 4392 transitions. [2024-10-14 07:11:30,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:30,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 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 177 [2024-10-14 07:11:30,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:30,091 INFO L225 Difference]: With dead ends: 2983 [2024-10-14 07:11:30,095 INFO L226 Difference]: Without dead ends: 1872 [2024-10-14 07:11:30,098 INFO L431 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 [2024-10-14 07:11:30,099 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:30,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4879 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:30,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2024-10-14 07:11:30,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1872. [2024-10-14 07:11:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1872 states, 1871 states have (on average 1.4692677712453233) internal successors, (2749), 1871 states have internal predecessors, (2749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2749 transitions. [2024-10-14 07:11:30,132 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2749 transitions. Word has length 177 [2024-10-14 07:11:30,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:30,132 INFO L471 AbstractCegarLoop]: Abstraction has 1872 states and 2749 transitions. [2024-10-14 07:11:30,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:30,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2749 transitions. [2024-10-14 07:11:30,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-14 07:11:30,135 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:30,135 INFO L215 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] [2024-10-14 07:11:30,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 07:11:30,137 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:30,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:30,138 INFO L85 PathProgramCache]: Analyzing trace with hash 757253111, now seen corresponding path program 1 times [2024-10-14 07:11:30,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:30,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325949860] [2024-10-14 07:11:30,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:30,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:31,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:31,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:31,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325949860] [2024-10-14 07:11:31,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325949860] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:31,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:31,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:31,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636736521] [2024-10-14 07:11:31,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:31,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:31,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:31,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:31,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:31,271 INFO L87 Difference]: Start difference. First operand 1872 states and 2749 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:31,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:31,424 INFO L93 Difference]: Finished difference Result 3040 states and 4465 transitions. [2024-10-14 07:11:31,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:31,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 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 177 [2024-10-14 07:11:31,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:31,430 INFO L225 Difference]: With dead ends: 3040 [2024-10-14 07:11:31,430 INFO L226 Difference]: Without dead ends: 1892 [2024-10-14 07:11:31,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:31,433 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 1530 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 4799 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:31,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 4799 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:31,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2024-10-14 07:11:31,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1892. [2024-10-14 07:11:31,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1892 states, 1891 states have (on average 1.4664198836594395) internal successors, (2773), 1891 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 2773 transitions. [2024-10-14 07:11:31,469 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 2773 transitions. Word has length 177 [2024-10-14 07:11:31,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:31,469 INFO L471 AbstractCegarLoop]: Abstraction has 1892 states and 2773 transitions. [2024-10-14 07:11:31,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:31,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 2773 transitions. [2024-10-14 07:11:31,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-14 07:11:31,473 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:31,474 INFO L215 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] [2024-10-14 07:11:31,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 07:11:31,474 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:31,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:31,475 INFO L85 PathProgramCache]: Analyzing trace with hash -437961485, now seen corresponding path program 1 times [2024-10-14 07:11:31,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:31,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650464735] [2024-10-14 07:11:31,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:31,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:31,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:31,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:31,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650464735] [2024-10-14 07:11:31,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650464735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:31,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:31,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:31,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904224651] [2024-10-14 07:11:31,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:31,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:11:31,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:31,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:11:31,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:31,943 INFO L87 Difference]: Start difference. First operand 1892 states and 2773 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:32,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:32,000 INFO L93 Difference]: Finished difference Result 3108 states and 4555 transitions. [2024-10-14 07:11:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:32,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 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 177 [2024-10-14 07:11:32,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:32,005 INFO L225 Difference]: With dead ends: 3108 [2024-10-14 07:11:32,005 INFO L226 Difference]: Without dead ends: 1900 [2024-10-14 07:11:32,007 INFO L431 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 [2024-10-14 07:11:32,008 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:32,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4879 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:32,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2024-10-14 07:11:32,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1900. [2024-10-14 07:11:32,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1899 states have (on average 1.4644549763033174) internal successors, (2781), 1899 states have internal predecessors, (2781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:32,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2781 transitions. [2024-10-14 07:11:32,041 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2781 transitions. Word has length 177 [2024-10-14 07:11:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:32,042 INFO L471 AbstractCegarLoop]: Abstraction has 1900 states and 2781 transitions. [2024-10-14 07:11:32,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2781 transitions. [2024-10-14 07:11:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-14 07:11:32,046 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:32,046 INFO L215 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] [2024-10-14 07:11:32,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 07:11:32,046 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:32,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:32,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1746076838, now seen corresponding path program 1 times [2024-10-14 07:11:32,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:32,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550470197] [2024-10-14 07:11:32,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:32,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:33,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:33,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:33,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550470197] [2024-10-14 07:11:33,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550470197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:33,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:33,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 07:11:33,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905883955] [2024-10-14 07:11:33,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:33,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 07:11:33,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:33,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 07:11:33,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:33,358 INFO L87 Difference]: Start difference. First operand 1900 states and 2781 transitions. Second operand has 8 states, 8 states have (on average 22.125) internal successors, (177), 7 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:33,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:33,570 INFO L93 Difference]: Finished difference Result 4138 states and 6042 transitions. [2024-10-14 07:11:33,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 07:11:33,571 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.125) internal successors, (177), 7 states have internal predecessors, (177), 0 states have call successors, (0), 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 177 [2024-10-14 07:11:33,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:33,576 INFO L225 Difference]: With dead ends: 4138 [2024-10-14 07:11:33,576 INFO L226 Difference]: Without dead ends: 3017 [2024-10-14 07:11:33,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-14 07:11:33,579 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 2338 mSDsluCounter, 6657 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 8261 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:33,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 8261 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:33,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2024-10-14 07:11:33,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 3013. [2024-10-14 07:11:33,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 3012 states have (on average 1.456507304116866) internal successors, (4387), 3012 states have internal predecessors, (4387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:33,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4387 transitions. [2024-10-14 07:11:33,620 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4387 transitions. Word has length 177 [2024-10-14 07:11:33,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:33,621 INFO L471 AbstractCegarLoop]: Abstraction has 3013 states and 4387 transitions. [2024-10-14 07:11:33,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.125) internal successors, (177), 7 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:33,621 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4387 transitions. [2024-10-14 07:11:33,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-14 07:11:33,627 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:33,627 INFO L215 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] [2024-10-14 07:11:33,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 07:11:33,627 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:33,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:33,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1893232158, now seen corresponding path program 1 times [2024-10-14 07:11:33,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:33,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971197376] [2024-10-14 07:11:33,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:33,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:34,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:34,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971197376] [2024-10-14 07:11:34,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971197376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:34,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:34,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:11:34,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970489662] [2024-10-14 07:11:34,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:34,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:11:34,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:34,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:11:34,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:34,542 INFO L87 Difference]: Start difference. First operand 3013 states and 4387 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 6 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:34,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:34,735 INFO L93 Difference]: Finished difference Result 4138 states and 6042 transitions. [2024-10-14 07:11:34,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 07:11:34,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 6 states have internal predecessors, (177), 0 states have call successors, (0), 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 177 [2024-10-14 07:11:34,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:34,742 INFO L225 Difference]: With dead ends: 4138 [2024-10-14 07:11:34,742 INFO L226 Difference]: Without dead ends: 3017 [2024-10-14 07:11:34,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:34,745 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 1635 mSDsluCounter, 6136 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 7735 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:34,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 7735 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:34,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2024-10-14 07:11:34,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 3013. [2024-10-14 07:11:34,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 3012 states have (on average 1.456507304116866) internal successors, (4387), 3012 states have internal predecessors, (4387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:34,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4387 transitions. [2024-10-14 07:11:34,785 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4387 transitions. Word has length 177 [2024-10-14 07:11:34,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:34,785 INFO L471 AbstractCegarLoop]: Abstraction has 3013 states and 4387 transitions. [2024-10-14 07:11:34,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 6 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:34,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4387 transitions. [2024-10-14 07:11:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-14 07:11:34,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:34,790 INFO L215 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] [2024-10-14 07:11:34,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 07:11:34,791 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:34,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:34,791 INFO L85 PathProgramCache]: Analyzing trace with hash -72051078, now seen corresponding path program 1 times [2024-10-14 07:11:34,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:34,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697383753] [2024-10-14 07:11:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:35,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:35,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:35,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697383753] [2024-10-14 07:11:35,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697383753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:35,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:35,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:35,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60526842] [2024-10-14 07:11:35,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:35,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:35,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:35,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:35,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:35,164 INFO L87 Difference]: Start difference. First operand 3013 states and 4387 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:35,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:35,215 INFO L93 Difference]: Finished difference Result 4192 states and 6122 transitions. [2024-10-14 07:11:35,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:35,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2024-10-14 07:11:35,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:35,221 INFO L225 Difference]: With dead ends: 4192 [2024-10-14 07:11:35,221 INFO L226 Difference]: Without dead ends: 3049 [2024-10-14 07:11:35,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:35,224 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 16 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:35,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6503 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:35,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2024-10-14 07:11:35,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 3049. [2024-10-14 07:11:35,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3049 states, 3048 states have (on average 1.4563648293963254) internal successors, (4439), 3048 states have internal predecessors, (4439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:35,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 4439 transitions. [2024-10-14 07:11:35,266 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 4439 transitions. Word has length 178 [2024-10-14 07:11:35,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:35,266 INFO L471 AbstractCegarLoop]: Abstraction has 3049 states and 4439 transitions. [2024-10-14 07:11:35,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:35,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 4439 transitions. [2024-10-14 07:11:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-14 07:11:35,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:35,271 INFO L215 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] [2024-10-14 07:11:35,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 07:11:35,272 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:35,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:35,272 INFO L85 PathProgramCache]: Analyzing trace with hash 125200921, now seen corresponding path program 1 times [2024-10-14 07:11:35,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:35,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006283880] [2024-10-14 07:11:35,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:35,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:36,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:36,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:36,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006283880] [2024-10-14 07:11:36,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006283880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:36,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:36,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 07:11:36,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57087208] [2024-10-14 07:11:36,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:36,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 07:11:36,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:36,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 07:11:36,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 07:11:36,238 INFO L87 Difference]: Start difference. First operand 3049 states and 4439 transitions. Second operand has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:36,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:36,437 INFO L93 Difference]: Finished difference Result 4763 states and 6921 transitions. [2024-10-14 07:11:36,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 07:11:36,438 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2024-10-14 07:11:36,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:36,444 INFO L225 Difference]: With dead ends: 4763 [2024-10-14 07:11:36,444 INFO L226 Difference]: Without dead ends: 3257 [2024-10-14 07:11:36,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 07:11:36,447 INFO L432 NwaCegarLoop]: 1616 mSDtfsCounter, 36 mSDsluCounter, 12969 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 14585 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:36,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 14585 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:36,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2024-10-14 07:11:36,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 3197. [2024-10-14 07:11:36,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3196 states have (on average 1.4540050062578223) internal successors, (4647), 3196 states have internal predecessors, (4647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:36,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4647 transitions. [2024-10-14 07:11:36,487 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4647 transitions. Word has length 178 [2024-10-14 07:11:36,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:36,488 INFO L471 AbstractCegarLoop]: Abstraction has 3197 states and 4647 transitions. [2024-10-14 07:11:36,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:36,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4647 transitions. [2024-10-14 07:11:36,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-14 07:11:36,493 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:36,493 INFO L215 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] [2024-10-14 07:11:36,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 07:11:36,493 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:36,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:36,494 INFO L85 PathProgramCache]: Analyzing trace with hash 656146880, now seen corresponding path program 1 times [2024-10-14 07:11:36,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:36,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001119726] [2024-10-14 07:11:36,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:36,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:37,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:37,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001119726] [2024-10-14 07:11:37,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001119726] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:37,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:37,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:37,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486771369] [2024-10-14 07:11:37,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:37,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:37,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:37,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:37,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:37,181 INFO L87 Difference]: Start difference. First operand 3197 states and 4647 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:37,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:37,933 INFO L93 Difference]: Finished difference Result 4762 states and 6917 transitions. [2024-10-14 07:11:37,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:11:37,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2024-10-14 07:11:37,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:37,939 INFO L225 Difference]: With dead ends: 4762 [2024-10-14 07:11:37,939 INFO L226 Difference]: Without dead ends: 3197 [2024-10-14 07:11:37,943 INFO L431 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 [2024-10-14 07:11:37,943 INFO L432 NwaCegarLoop]: 1316 mSDtfsCounter, 2064 mSDsluCounter, 3940 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 5256 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:37,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2064 Valid, 5256 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 07:11:37,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2024-10-14 07:11:37,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3197. [2024-10-14 07:11:37,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3196 states have (on average 1.4515018773466835) internal successors, (4639), 3196 states have internal predecessors, (4639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:37,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4639 transitions. [2024-10-14 07:11:37,983 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4639 transitions. Word has length 178 [2024-10-14 07:11:37,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:37,983 INFO L471 AbstractCegarLoop]: Abstraction has 3197 states and 4639 transitions. [2024-10-14 07:11:37,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:37,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4639 transitions. [2024-10-14 07:11:37,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-14 07:11:37,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:37,989 INFO L215 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] [2024-10-14 07:11:37,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 07:11:37,989 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:37,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:37,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1072056856, now seen corresponding path program 1 times [2024-10-14 07:11:37,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:37,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103391428] [2024-10-14 07:11:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:37,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:38,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:38,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:38,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103391428] [2024-10-14 07:11:38,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103391428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:38,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:38,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:38,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140424817] [2024-10-14 07:11:38,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:38,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:38,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:38,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:38,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:38,581 INFO L87 Difference]: Start difference. First operand 3197 states and 4639 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:39,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:39,363 INFO L93 Difference]: Finished difference Result 4972 states and 7199 transitions. [2024-10-14 07:11:39,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:11:39,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2024-10-14 07:11:39,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:39,369 INFO L225 Difference]: With dead ends: 4972 [2024-10-14 07:11:39,369 INFO L226 Difference]: Without dead ends: 3197 [2024-10-14 07:11:39,372 INFO L431 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 [2024-10-14 07:11:39,373 INFO L432 NwaCegarLoop]: 1316 mSDtfsCounter, 1854 mSDsluCounter, 3940 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 5256 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:39,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 5256 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 07:11:39,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2024-10-14 07:11:39,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3197. [2024-10-14 07:11:39,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3196 states have (on average 1.4489987484355444) internal successors, (4631), 3196 states have internal predecessors, (4631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:39,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4631 transitions. [2024-10-14 07:11:39,415 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4631 transitions. Word has length 178 [2024-10-14 07:11:39,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:39,415 INFO L471 AbstractCegarLoop]: Abstraction has 3197 states and 4631 transitions. [2024-10-14 07:11:39,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:39,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4631 transitions. [2024-10-14 07:11:39,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-14 07:11:39,420 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:39,421 INFO L215 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] [2024-10-14 07:11:39,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 07:11:39,421 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:39,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:39,422 INFO L85 PathProgramCache]: Analyzing trace with hash 891230695, now seen corresponding path program 1 times [2024-10-14 07:11:39,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:39,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137871579] [2024-10-14 07:11:39,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:39,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:40,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:40,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:40,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137871579] [2024-10-14 07:11:40,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137871579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:40,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:40,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:40,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936327266] [2024-10-14 07:11:40,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:40,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:40,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:40,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:40,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:40,096 INFO L87 Difference]: Start difference. First operand 3197 states and 4631 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:40,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:40,240 INFO L93 Difference]: Finished difference Result 7322 states and 10527 transitions. [2024-10-14 07:11:40,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:11:40,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2024-10-14 07:11:40,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:40,248 INFO L225 Difference]: With dead ends: 7322 [2024-10-14 07:11:40,249 INFO L226 Difference]: Without dead ends: 5093 [2024-10-14 07:11:40,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:40,254 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 1890 mSDsluCounter, 4807 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 6412 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:40,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 6412 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:40,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5093 states. [2024-10-14 07:11:40,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5093 to 4149. [2024-10-14 07:11:40,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4149 states, 4148 states have (on average 1.457810993249759) internal successors, (6047), 4148 states have internal predecessors, (6047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:40,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 6047 transitions. [2024-10-14 07:11:40,307 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 6047 transitions. Word has length 178 [2024-10-14 07:11:40,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:40,307 INFO L471 AbstractCegarLoop]: Abstraction has 4149 states and 6047 transitions. [2024-10-14 07:11:40,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:40,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 6047 transitions. [2024-10-14 07:11:40,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-14 07:11:40,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:40,314 INFO L215 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] [2024-10-14 07:11:40,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 07:11:40,314 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:40,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:40,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1835356775, now seen corresponding path program 1 times [2024-10-14 07:11:40,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:40,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058273919] [2024-10-14 07:11:40,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:40,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:40,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:40,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:40,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058273919] [2024-10-14 07:11:40,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058273919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:40,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:40,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:40,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041134672] [2024-10-14 07:11:40,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:40,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:11:40,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:40,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:11:40,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:40,630 INFO L87 Difference]: Start difference. First operand 4149 states and 6047 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:40,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:40,740 INFO L93 Difference]: Finished difference Result 6069 states and 8806 transitions. [2024-10-14 07:11:40,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:40,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2024-10-14 07:11:40,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:40,748 INFO L225 Difference]: With dead ends: 6069 [2024-10-14 07:11:40,748 INFO L226 Difference]: Without dead ends: 4197 [2024-10-14 07:11:40,750 INFO L431 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 [2024-10-14 07:11:40,751 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:40,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4879 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2024-10-14 07:11:40,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 4173. [2024-10-14 07:11:40,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4173 states, 4172 states have (on average 1.4551773729626079) internal successors, (6071), 4172 states have internal predecessors, (6071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4173 states to 4173 states and 6071 transitions. [2024-10-14 07:11:40,798 INFO L78 Accepts]: Start accepts. Automaton has 4173 states and 6071 transitions. Word has length 178 [2024-10-14 07:11:40,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:40,798 INFO L471 AbstractCegarLoop]: Abstraction has 4173 states and 6071 transitions. [2024-10-14 07:11:40,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 4173 states and 6071 transitions. [2024-10-14 07:11:40,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:40,806 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:40,806 INFO L215 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] [2024-10-14 07:11:40,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 07:11:40,806 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:40,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:40,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1883776198, now seen corresponding path program 1 times [2024-10-14 07:11:40,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:40,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366874483] [2024-10-14 07:11:40,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:40,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:42,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:42,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:42,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366874483] [2024-10-14 07:11:42,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366874483] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:42,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:42,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 07:11:42,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552269800] [2024-10-14 07:11:42,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:42,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 07:11:42,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:42,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 07:11:42,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-14 07:11:42,027 INFO L87 Difference]: Start difference. First operand 4173 states and 6071 transitions. Second operand has 11 states, 11 states have (on average 16.272727272727273) internal successors, (179), 10 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:42,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:42,374 INFO L93 Difference]: Finished difference Result 6740 states and 9749 transitions. [2024-10-14 07:11:42,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 07:11:42,374 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.272727272727273) internal successors, (179), 10 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:42,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:42,383 INFO L225 Difference]: With dead ends: 6740 [2024-10-14 07:11:42,383 INFO L226 Difference]: Without dead ends: 5468 [2024-10-14 07:11:42,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-14 07:11:42,386 INFO L432 NwaCegarLoop]: 1594 mSDtfsCounter, 2096 mSDsluCounter, 11422 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 13016 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:42,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2096 Valid, 13016 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 07:11:42,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5468 states. [2024-10-14 07:11:42,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5468 to 5167. [2024-10-14 07:11:42,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 1.4407665505226481) internal successors, (7443), 5166 states have internal predecessors, (7443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 7443 transitions. [2024-10-14 07:11:42,447 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 7443 transitions. Word has length 179 [2024-10-14 07:11:42,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:42,448 INFO L471 AbstractCegarLoop]: Abstraction has 5167 states and 7443 transitions. [2024-10-14 07:11:42,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.272727272727273) internal successors, (179), 10 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:42,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 7443 transitions. [2024-10-14 07:11:42,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:42,456 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:42,457 INFO L215 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] [2024-10-14 07:11:42,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 07:11:42,458 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:42,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:42,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1168605350, now seen corresponding path program 1 times [2024-10-14 07:11:42,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:42,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583610742] [2024-10-14 07:11:42,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:42,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:42,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:42,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:42,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583610742] [2024-10-14 07:11:42,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583610742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:42,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:42,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:42,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142693179] [2024-10-14 07:11:42,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:42,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:11:42,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:42,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:11:42,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:42,773 INFO L87 Difference]: Start difference. First operand 5167 states and 7443 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:42,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:42,826 INFO L93 Difference]: Finished difference Result 6913 states and 9967 transitions. [2024-10-14 07:11:42,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:42,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:42,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:42,834 INFO L225 Difference]: With dead ends: 6913 [2024-10-14 07:11:42,834 INFO L226 Difference]: Without dead ends: 5199 [2024-10-14 07:11:42,839 INFO L431 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 [2024-10-14 07:11:42,839 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:42,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4879 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:42,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2024-10-14 07:11:42,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5199. [2024-10-14 07:11:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 1.4380530973451326) internal successors, (7475), 5198 states have internal predecessors, (7475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:42,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 7475 transitions. [2024-10-14 07:11:42,898 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 7475 transitions. Word has length 179 [2024-10-14 07:11:42,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:42,899 INFO L471 AbstractCegarLoop]: Abstraction has 5199 states and 7475 transitions. [2024-10-14 07:11:42,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:42,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 7475 transitions. [2024-10-14 07:11:42,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:42,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:42,906 INFO L215 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] [2024-10-14 07:11:42,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 07:11:42,906 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:42,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:42,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1673814413, now seen corresponding path program 1 times [2024-10-14 07:11:42,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:42,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364810314] [2024-10-14 07:11:42,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:42,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:44,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:44,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:44,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364810314] [2024-10-14 07:11:44,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364810314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:44,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:44,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 07:11:44,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951785899] [2024-10-14 07:11:44,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:44,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 07:11:44,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:44,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 07:11:44,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-10-14 07:11:44,073 INFO L87 Difference]: Start difference. First operand 5199 states and 7475 transitions. Second operand has 15 states, 15 states have (on average 11.933333333333334) internal successors, (179), 15 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:44,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:44,395 INFO L93 Difference]: Finished difference Result 7387 states and 10587 transitions. [2024-10-14 07:11:44,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 07:11:44,396 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.933333333333334) internal successors, (179), 15 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:44,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:44,405 INFO L225 Difference]: With dead ends: 7387 [2024-10-14 07:11:44,406 INFO L226 Difference]: Without dead ends: 5679 [2024-10-14 07:11:44,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-10-14 07:11:44,410 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 55 mSDsluCounter, 20918 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 22528 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:44,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 22528 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 07:11:44,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2024-10-14 07:11:44,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 5535. [2024-10-14 07:11:44,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5535 states, 5534 states have (on average 1.432417780990242) internal successors, (7927), 5534 states have internal predecessors, (7927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:44,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5535 states to 5535 states and 7927 transitions. [2024-10-14 07:11:44,474 INFO L78 Accepts]: Start accepts. Automaton has 5535 states and 7927 transitions. Word has length 179 [2024-10-14 07:11:44,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:44,475 INFO L471 AbstractCegarLoop]: Abstraction has 5535 states and 7927 transitions. [2024-10-14 07:11:44,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.933333333333334) internal successors, (179), 15 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:44,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5535 states and 7927 transitions. [2024-10-14 07:11:44,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:44,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:44,482 INFO L215 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] [2024-10-14 07:11:44,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 07:11:44,483 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:44,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:44,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1111385734, now seen corresponding path program 1 times [2024-10-14 07:11:44,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:44,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655772879] [2024-10-14 07:11:44,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:44,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:45,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:45,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655772879] [2024-10-14 07:11:45,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655772879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:45,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:45,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:45,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190220358] [2024-10-14 07:11:45,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:45,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:45,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:45,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:45,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:45,189 INFO L87 Difference]: Start difference. First operand 5535 states and 7927 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:45,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:45,888 INFO L93 Difference]: Finished difference Result 7465 states and 10677 transitions. [2024-10-14 07:11:45,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:11:45,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:45,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:45,896 INFO L225 Difference]: With dead ends: 7465 [2024-10-14 07:11:45,897 INFO L226 Difference]: Without dead ends: 5535 [2024-10-14 07:11:45,901 INFO L431 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 [2024-10-14 07:11:45,902 INFO L432 NwaCegarLoop]: 1316 mSDtfsCounter, 1828 mSDsluCounter, 3940 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 5256 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:45,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 5256 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 07:11:45,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5535 states. [2024-10-14 07:11:45,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5535 to 5535. [2024-10-14 07:11:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5535 states, 5534 states have (on average 1.428803758583303) internal successors, (7907), 5534 states have internal predecessors, (7907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:45,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5535 states to 5535 states and 7907 transitions. [2024-10-14 07:11:45,966 INFO L78 Accepts]: Start accepts. Automaton has 5535 states and 7907 transitions. Word has length 179 [2024-10-14 07:11:45,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:45,966 INFO L471 AbstractCegarLoop]: Abstraction has 5535 states and 7907 transitions. [2024-10-14 07:11:45,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:45,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5535 states and 7907 transitions. [2024-10-14 07:11:45,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:45,974 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:45,975 INFO L215 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] [2024-10-14 07:11:45,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 07:11:45,975 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:45,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:45,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1270025387, now seen corresponding path program 1 times [2024-10-14 07:11:45,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:45,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385557135] [2024-10-14 07:11:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:45,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:46,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:46,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385557135] [2024-10-14 07:11:46,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385557135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:46,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:46,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:46,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128110531] [2024-10-14 07:11:46,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:46,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:46,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:46,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:46,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:46,687 INFO L87 Difference]: Start difference. First operand 5535 states and 7907 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:46,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:46,866 INFO L93 Difference]: Finished difference Result 11921 states and 16881 transitions. [2024-10-14 07:11:46,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:11:46,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:46,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:46,878 INFO L225 Difference]: With dead ends: 11921 [2024-10-14 07:11:46,879 INFO L226 Difference]: Without dead ends: 9455 [2024-10-14 07:11:46,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:46,886 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 2121 mSDsluCounter, 4807 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 6412 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:46,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2121 Valid, 6412 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:46,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9455 states. [2024-10-14 07:11:46,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9455 to 8511. [2024-10-14 07:11:46,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8511 states, 8510 states have (on average 1.4297297297297298) internal successors, (12167), 8510 states have internal predecessors, (12167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:47,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8511 states to 8511 states and 12167 transitions. [2024-10-14 07:11:47,083 INFO L78 Accepts]: Start accepts. Automaton has 8511 states and 12167 transitions. Word has length 179 [2024-10-14 07:11:47,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:47,084 INFO L471 AbstractCegarLoop]: Abstraction has 8511 states and 12167 transitions. [2024-10-14 07:11:47,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:47,084 INFO L276 IsEmpty]: Start isEmpty. Operand 8511 states and 12167 transitions. [2024-10-14 07:11:47,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:47,100 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:47,101 INFO L215 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] [2024-10-14 07:11:47,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-14 07:11:47,101 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:47,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:47,102 INFO L85 PathProgramCache]: Analyzing trace with hash 914699659, now seen corresponding path program 1 times [2024-10-14 07:11:47,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:47,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765910301] [2024-10-14 07:11:47,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:47,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:47,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:47,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:47,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765910301] [2024-10-14 07:11:47,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765910301] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:47,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:47,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:47,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876259369] [2024-10-14 07:11:47,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:47,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:47,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:47,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:47,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:47,806 INFO L87 Difference]: Start difference. First operand 8511 states and 12167 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:47,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:47,895 INFO L93 Difference]: Finished difference Result 10981 states and 15633 transitions. [2024-10-14 07:11:47,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:47,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:47,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:47,907 INFO L225 Difference]: With dead ends: 10981 [2024-10-14 07:11:47,908 INFO L226 Difference]: Without dead ends: 8391 [2024-10-14 07:11:47,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:47,915 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 217 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 6498 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:47,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 6498 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:47,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2024-10-14 07:11:48,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 8391. [2024-10-14 07:11:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8391 states, 8390 states have (on average 1.4272943980929678) internal successors, (11975), 8390 states have internal predecessors, (11975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:48,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8391 states to 8391 states and 11975 transitions. [2024-10-14 07:11:48,041 INFO L78 Accepts]: Start accepts. Automaton has 8391 states and 11975 transitions. Word has length 179 [2024-10-14 07:11:48,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:48,041 INFO L471 AbstractCegarLoop]: Abstraction has 8391 states and 11975 transitions. [2024-10-14 07:11:48,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:48,042 INFO L276 IsEmpty]: Start isEmpty. Operand 8391 states and 11975 transitions. [2024-10-14 07:11:48,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:48,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:48,053 INFO L215 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] [2024-10-14 07:11:48,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-14 07:11:48,053 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:48,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:48,054 INFO L85 PathProgramCache]: Analyzing trace with hash 335961716, now seen corresponding path program 1 times [2024-10-14 07:11:48,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:48,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140641209] [2024-10-14 07:11:48,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:48,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:48,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:48,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140641209] [2024-10-14 07:11:48,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140641209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:48,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:48,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:48,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363413702] [2024-10-14 07:11:48,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:48,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:48,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:48,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:48,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:48,632 INFO L87 Difference]: Start difference. First operand 8391 states and 11975 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:48,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:48,728 INFO L93 Difference]: Finished difference Result 10034 states and 14349 transitions. [2024-10-14 07:11:48,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:48,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:48,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:48,737 INFO L225 Difference]: With dead ends: 10034 [2024-10-14 07:11:48,737 INFO L226 Difference]: Without dead ends: 7535 [2024-10-14 07:11:48,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:48,741 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 223 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 6498 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:48,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 6498 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:48,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7535 states. [2024-10-14 07:11:48,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7535 to 7535. [2024-10-14 07:11:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7535 states, 7534 states have (on average 1.4378816033979294) internal successors, (10833), 7534 states have internal predecessors, (10833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7535 states to 7535 states and 10833 transitions. [2024-10-14 07:11:48,835 INFO L78 Accepts]: Start accepts. Automaton has 7535 states and 10833 transitions. Word has length 179 [2024-10-14 07:11:48,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:48,835 INFO L471 AbstractCegarLoop]: Abstraction has 7535 states and 10833 transitions. [2024-10-14 07:11:48,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:48,836 INFO L276 IsEmpty]: Start isEmpty. Operand 7535 states and 10833 transitions. [2024-10-14 07:11:48,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:48,844 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:48,844 INFO L215 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] [2024-10-14 07:11:48,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-14 07:11:48,845 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:48,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:48,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1420708098, now seen corresponding path program 1 times [2024-10-14 07:11:48,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:48,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755663882] [2024-10-14 07:11:48,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:48,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:49,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:49,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755663882] [2024-10-14 07:11:49,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755663882] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:49,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:49,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:11:49,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978496664] [2024-10-14 07:11:49,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:49,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:11:49,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:49,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:11:49,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:49,560 INFO L87 Difference]: Start difference. First operand 7535 states and 10833 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:49,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:49,710 INFO L93 Difference]: Finished difference Result 16573 states and 23619 transitions. [2024-10-14 07:11:49,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:11:49,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:49,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:49,723 INFO L225 Difference]: With dead ends: 16573 [2024-10-14 07:11:49,723 INFO L226 Difference]: Without dead ends: 13157 [2024-10-14 07:11:49,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:49,732 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 1873 mSDsluCounter, 6407 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 8012 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:49,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 8012 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:49,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13157 states. [2024-10-14 07:11:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13157 to 9555. [2024-10-14 07:11:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9555 states, 9554 states have (on average 1.4411764705882353) internal successors, (13769), 9554 states have internal predecessors, (13769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:49,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9555 states to 9555 states and 13769 transitions. [2024-10-14 07:11:49,852 INFO L78 Accepts]: Start accepts. Automaton has 9555 states and 13769 transitions. Word has length 179 [2024-10-14 07:11:49,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:49,852 INFO L471 AbstractCegarLoop]: Abstraction has 9555 states and 13769 transitions. [2024-10-14 07:11:49,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:49,853 INFO L276 IsEmpty]: Start isEmpty. Operand 9555 states and 13769 transitions. [2024-10-14 07:11:49,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:49,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:49,863 INFO L215 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] [2024-10-14 07:11:49,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-14 07:11:49,863 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:49,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:49,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1747374748, now seen corresponding path program 1 times [2024-10-14 07:11:49,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:49,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639663188] [2024-10-14 07:11:49,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:49,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:50,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:50,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:50,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639663188] [2024-10-14 07:11:50,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639663188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:50,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:50,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:50,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936558269] [2024-10-14 07:11:50,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:50,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:50,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:50,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:50,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:50,471 INFO L87 Difference]: Start difference. First operand 9555 states and 13769 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:50,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:50,555 INFO L93 Difference]: Finished difference Result 11247 states and 16221 transitions. [2024-10-14 07:11:50,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:50,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:50,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:50,568 INFO L225 Difference]: With dead ends: 11247 [2024-10-14 07:11:50,569 INFO L226 Difference]: Without dead ends: 9599 [2024-10-14 07:11:50,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:50,576 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 5 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6494 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:50,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6494 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:50,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9599 states. [2024-10-14 07:11:50,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9599 to 9587. [2024-10-14 07:11:50,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9587 states, 9586 states have (on average 1.4405382849989568) internal successors, (13809), 9586 states have internal predecessors, (13809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:50,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9587 states to 9587 states and 13809 transitions. [2024-10-14 07:11:50,681 INFO L78 Accepts]: Start accepts. Automaton has 9587 states and 13809 transitions. Word has length 179 [2024-10-14 07:11:50,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:50,681 INFO L471 AbstractCegarLoop]: Abstraction has 9587 states and 13809 transitions. [2024-10-14 07:11:50,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:50,681 INFO L276 IsEmpty]: Start isEmpty. Operand 9587 states and 13809 transitions. [2024-10-14 07:11:50,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:50,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:50,693 INFO L215 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] [2024-10-14 07:11:50,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-14 07:11:50,693 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:50,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:50,694 INFO L85 PathProgramCache]: Analyzing trace with hash 228789845, now seen corresponding path program 1 times [2024-10-14 07:11:50,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:50,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279240685] [2024-10-14 07:11:50,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:50,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:51,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:51,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:51,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279240685] [2024-10-14 07:11:51,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279240685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:51,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:51,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:11:51,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264523058] [2024-10-14 07:11:51,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:51,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:11:51,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:51,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:11:51,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:51,397 INFO L87 Difference]: Start difference. First operand 9587 states and 13809 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:52,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:52,036 INFO L93 Difference]: Finished difference Result 17336 states and 24956 transitions. [2024-10-14 07:11:52,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 07:11:52,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:52,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:52,049 INFO L225 Difference]: With dead ends: 17336 [2024-10-14 07:11:52,049 INFO L226 Difference]: Without dead ends: 13347 [2024-10-14 07:11:52,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-14 07:11:52,056 INFO L432 NwaCegarLoop]: 2938 mSDtfsCounter, 1574 mSDsluCounter, 13080 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 16018 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:52,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 16018 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 07:11:52,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13347 states. [2024-10-14 07:11:52,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13347 to 12371. [2024-10-14 07:11:52,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12371 states, 12370 states have (on average 1.4481002425222311) internal successors, (17913), 12370 states have internal predecessors, (17913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12371 states to 12371 states and 17913 transitions. [2024-10-14 07:11:52,195 INFO L78 Accepts]: Start accepts. Automaton has 12371 states and 17913 transitions. Word has length 179 [2024-10-14 07:11:52,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:52,195 INFO L471 AbstractCegarLoop]: Abstraction has 12371 states and 17913 transitions. [2024-10-14 07:11:52,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:52,196 INFO L276 IsEmpty]: Start isEmpty. Operand 12371 states and 17913 transitions. [2024-10-14 07:11:52,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:52,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:52,210 INFO L215 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] [2024-10-14 07:11:52,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-14 07:11:52,210 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:52,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:52,211 INFO L85 PathProgramCache]: Analyzing trace with hash 644699821, now seen corresponding path program 1 times [2024-10-14 07:11:52,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:52,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792839627] [2024-10-14 07:11:52,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:52,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:52,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:52,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792839627] [2024-10-14 07:11:52,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792839627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:52,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:52,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:11:52,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324129127] [2024-10-14 07:11:52,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:52,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:11:52,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:52,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:11:52,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:52,852 INFO L87 Difference]: Start difference. First operand 12371 states and 17913 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:53,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:53,286 INFO L93 Difference]: Finished difference Result 15342 states and 22103 transitions. [2024-10-14 07:11:53,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 07:11:53,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:53,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:53,299 INFO L225 Difference]: With dead ends: 15342 [2024-10-14 07:11:53,299 INFO L226 Difference]: Without dead ends: 13683 [2024-10-14 07:11:53,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:53,305 INFO L432 NwaCegarLoop]: 1898 mSDtfsCounter, 306 mSDsluCounter, 7160 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 9058 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:53,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 9058 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 07:11:53,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13683 states. [2024-10-14 07:11:53,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13683 to 13355. [2024-10-14 07:11:53,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13355 states, 13354 states have (on average 1.442938445409615) internal successors, (19269), 13354 states have internal predecessors, (19269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:53,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13355 states to 13355 states and 19269 transitions. [2024-10-14 07:11:53,436 INFO L78 Accepts]: Start accepts. Automaton has 13355 states and 19269 transitions. Word has length 179 [2024-10-14 07:11:53,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:53,436 INFO L471 AbstractCegarLoop]: Abstraction has 13355 states and 19269 transitions. [2024-10-14 07:11:53,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:53,437 INFO L276 IsEmpty]: Start isEmpty. Operand 13355 states and 19269 transitions. [2024-10-14 07:11:53,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 07:11:53,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:53,453 INFO L215 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] [2024-10-14 07:11:53,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-14 07:11:53,454 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:53,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:53,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1192805216, now seen corresponding path program 1 times [2024-10-14 07:11:53,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:53,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364356801] [2024-10-14 07:11:53,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:53,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:54,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:54,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:54,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364356801] [2024-10-14 07:11:54,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364356801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:54,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:54,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:11:54,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146071098] [2024-10-14 07:11:54,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:54,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:11:54,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:54,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:11:54,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:54,165 INFO L87 Difference]: Start difference. First operand 13355 states and 19269 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:54,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:54,399 INFO L93 Difference]: Finished difference Result 29424 states and 42139 transitions. [2024-10-14 07:11:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:11:54,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-10-14 07:11:54,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:54,423 INFO L225 Difference]: With dead ends: 29424 [2024-10-14 07:11:54,423 INFO L226 Difference]: Without dead ends: 23909 [2024-10-14 07:11:54,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:54,438 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 2140 mSDsluCounter, 6407 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 8012 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:54,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 8012 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:54,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23909 states. [2024-10-14 07:11:54,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23909 to 13355. [2024-10-14 07:11:54,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13355 states, 13354 states have (on average 1.442938445409615) internal successors, (19269), 13354 states have internal predecessors, (19269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:54,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13355 states to 13355 states and 19269 transitions. [2024-10-14 07:11:54,599 INFO L78 Accepts]: Start accepts. Automaton has 13355 states and 19269 transitions. Word has length 179 [2024-10-14 07:11:54,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:54,600 INFO L471 AbstractCegarLoop]: Abstraction has 13355 states and 19269 transitions. [2024-10-14 07:11:54,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:54,600 INFO L276 IsEmpty]: Start isEmpty. Operand 13355 states and 19269 transitions. [2024-10-14 07:11:54,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-14 07:11:54,616 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:54,616 INFO L215 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] [2024-10-14 07:11:54,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-14 07:11:54,616 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:54,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:54,617 INFO L85 PathProgramCache]: Analyzing trace with hash 592202909, now seen corresponding path program 1 times [2024-10-14 07:11:54,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:54,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45824950] [2024-10-14 07:11:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:54,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:55,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:55,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:55,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45824950] [2024-10-14 07:11:55,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45824950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:55,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:55,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-14 07:11:55,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851224584] [2024-10-14 07:11:55,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:55,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 07:11:55,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:55,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 07:11:55,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2024-10-14 07:11:55,699 INFO L87 Difference]: Start difference. First operand 13355 states and 19269 transitions. Second operand has 20 states, 20 states have (on average 9.0) internal successors, (180), 20 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:56,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:56,174 INFO L93 Difference]: Finished difference Result 15477 states and 22286 transitions. [2024-10-14 07:11:56,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 07:11:56,175 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 9.0) internal successors, (180), 20 states have internal predecessors, (180), 0 states have call successors, (0), 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 180 [2024-10-14 07:11:56,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:56,193 INFO L225 Difference]: With dead ends: 15477 [2024-10-14 07:11:56,193 INFO L226 Difference]: Without dead ends: 13857 [2024-10-14 07:11:56,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2024-10-14 07:11:56,203 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 87 mSDsluCounter, 28907 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 30515 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:56,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 30515 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 07:11:56,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13857 states. [2024-10-14 07:11:56,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13857 to 13797. [2024-10-14 07:11:56,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13797 states, 13796 states have (on average 1.4412148448825746) internal successors, (19883), 13796 states have internal predecessors, (19883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:56,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13797 states to 13797 states and 19883 transitions. [2024-10-14 07:11:56,335 INFO L78 Accepts]: Start accepts. Automaton has 13797 states and 19883 transitions. Word has length 180 [2024-10-14 07:11:56,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:56,335 INFO L471 AbstractCegarLoop]: Abstraction has 13797 states and 19883 transitions. [2024-10-14 07:11:56,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.0) internal successors, (180), 20 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:56,336 INFO L276 IsEmpty]: Start isEmpty. Operand 13797 states and 19883 transitions. [2024-10-14 07:11:56,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-14 07:11:56,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:56,349 INFO L215 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] [2024-10-14 07:11:56,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-14 07:11:56,349 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:56,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:56,350 INFO L85 PathProgramCache]: Analyzing trace with hash -520941539, now seen corresponding path program 1 times [2024-10-14 07:11:56,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:56,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762603449] [2024-10-14 07:11:56,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:56,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:57,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:57,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:57,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762603449] [2024-10-14 07:11:57,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762603449] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:57,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:57,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-14 07:11:57,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517722777] [2024-10-14 07:11:57,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:57,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 07:11:57,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:57,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 07:11:57,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2024-10-14 07:11:57,451 INFO L87 Difference]: Start difference. First operand 13797 states and 19883 transitions. Second operand has 18 states, 18 states have (on average 10.0) internal successors, (180), 18 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:57,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:57,820 INFO L93 Difference]: Finished difference Result 15651 states and 22533 transitions. [2024-10-14 07:11:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 07:11:57,820 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.0) internal successors, (180), 18 states have internal predecessors, (180), 0 states have call successors, (0), 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 180 [2024-10-14 07:11:57,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:57,833 INFO L225 Difference]: With dead ends: 15651 [2024-10-14 07:11:57,833 INFO L226 Difference]: Without dead ends: 13865 [2024-10-14 07:11:57,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2024-10-14 07:11:57,839 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 78 mSDsluCounter, 21060 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 22677 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:57,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 22677 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 07:11:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13865 states. [2024-10-14 07:11:57,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13865 to 13813. [2024-10-14 07:11:57,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13813 states, 13812 states have (on average 1.4409933391253982) internal successors, (19903), 13812 states have internal predecessors, (19903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13813 states to 13813 states and 19903 transitions. [2024-10-14 07:11:57,958 INFO L78 Accepts]: Start accepts. Automaton has 13813 states and 19903 transitions. Word has length 180 [2024-10-14 07:11:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:57,959 INFO L471 AbstractCegarLoop]: Abstraction has 13813 states and 19903 transitions. [2024-10-14 07:11:57,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.0) internal successors, (180), 18 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:57,959 INFO L276 IsEmpty]: Start isEmpty. Operand 13813 states and 19903 transitions. [2024-10-14 07:11:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-14 07:11:57,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:57,971 INFO L215 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] [2024-10-14 07:11:57,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-14 07:11:57,971 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:57,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:57,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1745274539, now seen corresponding path program 1 times [2024-10-14 07:11:57,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:57,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926134476] [2024-10-14 07:11:57,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:57,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:58,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:58,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:58,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926134476] [2024-10-14 07:11:58,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926134476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:58,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:58,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:58,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560562513] [2024-10-14 07:11:58,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:58,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:58,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:58,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:58,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:58,610 INFO L87 Difference]: Start difference. First operand 13813 states and 19903 transitions. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:58,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:58,773 INFO L93 Difference]: Finished difference Result 27143 states and 38933 transitions. [2024-10-14 07:11:58,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:11:58,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 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 180 [2024-10-14 07:11:58,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:58,802 INFO L225 Difference]: With dead ends: 27143 [2024-10-14 07:11:58,802 INFO L226 Difference]: Without dead ends: 24907 [2024-10-14 07:11:58,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:58,817 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 1863 mSDsluCounter, 4807 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 6412 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:58,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 6412 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:11:58,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24907 states. [2024-10-14 07:11:58,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24907 to 24353. [2024-10-14 07:11:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24353 states, 24352 states have (on average 1.4372125492772667) internal successors, (34999), 24352 states have internal predecessors, (34999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24353 states to 24353 states and 34999 transitions. [2024-10-14 07:11:59,048 INFO L78 Accepts]: Start accepts. Automaton has 24353 states and 34999 transitions. Word has length 180 [2024-10-14 07:11:59,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:59,048 INFO L471 AbstractCegarLoop]: Abstraction has 24353 states and 34999 transitions. [2024-10-14 07:11:59,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:59,048 INFO L276 IsEmpty]: Start isEmpty. Operand 24353 states and 34999 transitions. [2024-10-14 07:11:59,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-14 07:11:59,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:59,070 INFO L215 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] [2024-10-14 07:11:59,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-14 07:11:59,070 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:59,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:59,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1766615201, now seen corresponding path program 1 times [2024-10-14 07:11:59,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:59,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767999323] [2024-10-14 07:11:59,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:59,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:59,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:59,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:59,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767999323] [2024-10-14 07:11:59,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767999323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:59,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:59,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:59,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729788830] [2024-10-14 07:11:59,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:59,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:59,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:59,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:59,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:59,484 INFO L87 Difference]: Start difference. First operand 24353 states and 34999 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:59,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:59,596 INFO L93 Difference]: Finished difference Result 26402 states and 37914 transitions. [2024-10-14 07:11:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:59,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 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 180 [2024-10-14 07:11:59,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:59,620 INFO L225 Difference]: With dead ends: 26402 [2024-10-14 07:11:59,620 INFO L226 Difference]: Without dead ends: 24233 [2024-10-14 07:11:59,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:59,631 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 193 mSDsluCounter, 4882 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:59,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 6516 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:59,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24233 states. [2024-10-14 07:11:59,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24233 to 24233. [2024-10-14 07:11:59,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24233 states, 24232 states have (on average 1.4372317596566524) internal successors, (34827), 24232 states have internal predecessors, (34827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24233 states to 24233 states and 34827 transitions. [2024-10-14 07:11:59,944 INFO L78 Accepts]: Start accepts. Automaton has 24233 states and 34827 transitions. Word has length 180 [2024-10-14 07:11:59,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:59,944 INFO L471 AbstractCegarLoop]: Abstraction has 24233 states and 34827 transitions. [2024-10-14 07:11:59,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:59,944 INFO L276 IsEmpty]: Start isEmpty. Operand 24233 states and 34827 transitions. [2024-10-14 07:11:59,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-14 07:11:59,965 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:59,966 INFO L215 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] [2024-10-14 07:11:59,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-10-14 07:11:59,966 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:59,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:59,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2065788278, now seen corresponding path program 1 times [2024-10-14 07:11:59,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:59,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896591239] [2024-10-14 07:11:59,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:59,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:12:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:12:00,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:12:00,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:12:00,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896591239] [2024-10-14 07:12:00,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896591239] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:12:00,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:12:00,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:12:00,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143794352] [2024-10-14 07:12:00,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:12:00,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:12:00,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:12:00,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:12:00,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:12:00,596 INFO L87 Difference]: Start difference. First operand 24233 states and 34827 transitions. Second operand has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 6 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:12:00,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:12:00,896 INFO L93 Difference]: Finished difference Result 49887 states and 71413 transitions. [2024-10-14 07:12:00,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:12:00,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 6 states have internal predecessors, (180), 0 states have call successors, (0), 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 180 [2024-10-14 07:12:00,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:12:00,939 INFO L225 Difference]: With dead ends: 49887 [2024-10-14 07:12:00,939 INFO L226 Difference]: Without dead ends: 46139 [2024-10-14 07:12:00,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:12:00,959 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 2129 mSDsluCounter, 6407 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 8012 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:12:00,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 8012 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:12:00,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46139 states. [2024-10-14 07:12:01,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46139 to 24377. [2024-10-14 07:12:01,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24377 states, 24376 states have (on average 1.4376025598949786) internal successors, (35043), 24376 states have internal predecessors, (35043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:12:01,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24377 states to 24377 states and 35043 transitions. [2024-10-14 07:12:01,241 INFO L78 Accepts]: Start accepts. Automaton has 24377 states and 35043 transitions. Word has length 180 [2024-10-14 07:12:01,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:12:01,241 INFO L471 AbstractCegarLoop]: Abstraction has 24377 states and 35043 transitions. [2024-10-14 07:12:01,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 6 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:12:01,242 INFO L276 IsEmpty]: Start isEmpty. Operand 24377 states and 35043 transitions. [2024-10-14 07:12:01,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-14 07:12:01,261 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:12:01,261 INFO L215 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] [2024-10-14 07:12:01,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-10-14 07:12:01,261 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:12:01,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:12:01,262 INFO L85 PathProgramCache]: Analyzing trace with hash -854504257, now seen corresponding path program 1 times [2024-10-14 07:12:01,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:12:01,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625875348] [2024-10-14 07:12:01,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:12:01,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:12:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat