./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.circular_pointer_top_w64_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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.circular_pointer_top_w64_d16_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 740169cb7aec884028548f875dd7710b7e8c54465b62519efb8743dcffb7d119 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 22:37:39,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 22:37:39,295 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-12 22:37:39,299 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 22:37:39,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 22:37:39,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 22:37:39,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 22:37:39,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 22:37:39,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 22:37:39,331 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 22:37:39,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 22:37:39,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 22:37:39,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 22:37:39,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 22:37:39,332 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 22:37:39,333 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 22:37:39,333 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 22:37:39,333 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 22:37:39,334 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 22:37:39,334 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 22:37:39,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 22:37:39,335 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 22:37:39,335 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 22:37:39,335 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 22:37:39,335 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 22:37:39,336 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 22:37:39,336 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 22:37:39,336 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 22:37:39,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 22:37:39,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:37:39,337 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 22:37:39,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 22:37:39,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 22:37:39,338 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 22:37:39,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 22:37:39,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 22:37:39,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 22:37:39,338 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 22:37:39,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 22:37:39,339 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 740169cb7aec884028548f875dd7710b7e8c54465b62519efb8743dcffb7d119 [2024-10-12 22:37:39,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 22:37:39,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 22:37:39,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 22:37:39,592 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 22:37:39,592 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 22:37:39,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c [2024-10-12 22:37:41,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 22:37:41,240 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 22:37:41,240 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c [2024-10-12 22:37:41,250 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/610f608af/93d91b08806a466681d57e849a5588b1/FLAGcaa4931ff [2024-10-12 22:37:41,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/610f608af/93d91b08806a466681d57e849a5588b1 [2024-10-12 22:37:41,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 22:37:41,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 22:37:41,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 22:37:41,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 22:37:41,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 22:37:41,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:41,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9db0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41, skipping insertion in model container [2024-10-12 22:37:41,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:41,306 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 22:37:41,429 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.circular_pointer_top_w64_d16_e0.c[1280,1293] [2024-10-12 22:37:41,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:37:41,644 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 22:37:41,664 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.circular_pointer_top_w64_d16_e0.c[1280,1293] [2024-10-12 22:37:41,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:37:41,762 INFO L204 MainTranslator]: Completed translation [2024-10-12 22:37:41,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41 WrapperNode [2024-10-12 22:37:41,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 22:37:41,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 22:37:41,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 22:37:41,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 22:37:41,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:41,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:41,996 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1977 [2024-10-12 22:37:41,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 22:37:41,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 22:37:41,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 22:37:41,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 22:37:42,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:42,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:42,031 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:42,096 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]. [2024-10-12 22:37:42,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:42,096 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:42,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:42,156 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:42,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:42,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:42,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 22:37:42,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 22:37:42,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 22:37:42,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 22:37:42,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (1/1) ... [2024-10-12 22:37:42,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:37:42,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:37:42,261 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) [2024-10-12 22:37:42,267 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 [2024-10-12 22:37:42,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 22:37:42,307 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-12 22:37:42,307 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-12 22:37:42,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 22:37:42,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 22:37:42,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 22:37:42,497 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 22:37:42,499 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 22:37:44,264 INFO L? ?]: Removed 1091 outVars from TransFormulas that were not future-live. [2024-10-12 22:37:44,265 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 22:37:44,304 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 22:37:44,305 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 22:37:44,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:37:44 BoogieIcfgContainer [2024-10-12 22:37:44,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 22:37:44,306 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 22:37:44,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 22:37:44,309 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 22:37:44,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:37:41" (1/3) ... [2024-10-12 22:37:44,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7076207c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:37:44, skipping insertion in model container [2024-10-12 22:37:44,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:37:41" (2/3) ... [2024-10-12 22:37:44,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7076207c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:37:44, skipping insertion in model container [2024-10-12 22:37:44,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:37:44" (3/3) ... [2024-10-12 22:37:44,311 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c [2024-10-12 22:37:44,324 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 22:37:44,324 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 22:37:44,386 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 22:37:44,392 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;@a843b79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 22:37:44,392 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 22:37:44,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 549 states, 543 states have (on average 1.4972375690607735) internal successors, (813), 544 states have internal predecessors, (813), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:44,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-12 22:37:44,413 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:44,413 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:44,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:44,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:44,418 INFO L85 PathProgramCache]: Analyzing trace with hash -185767001, now seen corresponding path program 1 times [2024-10-12 22:37:44,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:44,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416330698] [2024-10-12 22:37:44,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:44,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:44,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:44,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:44,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:44,777 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:44,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:44,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416330698] [2024-10-12 22:37:44,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416330698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:44,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:44,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 22:37:44,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080679329] [2024-10-12 22:37:44,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:44,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 22:37:44,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:44,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 22:37:44,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 22:37:44,805 INFO L87 Difference]: Start difference. First operand has 549 states, 543 states have (on average 1.4972375690607735) internal successors, (813), 544 states have internal predecessors, (813), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:37:44,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:44,858 INFO L93 Difference]: Finished difference Result 996 states and 1490 transitions. [2024-10-12 22:37:44,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 22:37:44,860 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 148 [2024-10-12 22:37:44,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:44,870 INFO L225 Difference]: With dead ends: 996 [2024-10-12 22:37:44,870 INFO L226 Difference]: Without dead ends: 548 [2024-10-12 22:37:44,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 22:37:44,876 INFO L432 NwaCegarLoop]: 815 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:44,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 815 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:44,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-10-12 22:37:44,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2024-10-12 22:37:44,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 543 states have (on average 1.4917127071823204) internal successors, (810), 543 states have internal predecessors, (810), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:44,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 816 transitions. [2024-10-12 22:37:44,944 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 816 transitions. Word has length 148 [2024-10-12 22:37:44,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:44,945 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 816 transitions. [2024-10-12 22:37:44,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:37:44,946 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 816 transitions. [2024-10-12 22:37:44,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-12 22:37:44,953 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:44,953 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:44,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 22:37:44,954 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:44,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:44,958 INFO L85 PathProgramCache]: Analyzing trace with hash 386034401, now seen corresponding path program 1 times [2024-10-12 22:37:44,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:44,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257092886] [2024-10-12 22:37:44,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:44,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:45,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:45,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:45,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:45,817 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:45,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:45,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257092886] [2024-10-12 22:37:45,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257092886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:45,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:45,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:45,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087303090] [2024-10-12 22:37:45,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:45,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:45,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:45,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:45,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:45,821 INFO L87 Difference]: Start difference. First operand 548 states and 816 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:45,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:45,865 INFO L93 Difference]: Finished difference Result 552 states and 820 transitions. [2024-10-12 22:37:45,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:45,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 148 [2024-10-12 22:37:45,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:45,869 INFO L225 Difference]: With dead ends: 552 [2024-10-12 22:37:45,869 INFO L226 Difference]: Without dead ends: 550 [2024-10-12 22:37:45,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:45,870 INFO L432 NwaCegarLoop]: 813 mSDtfsCounter, 0 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2434 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 [2024-10-12 22:37:45,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2434 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:45,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-10-12 22:37:45,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-10-12 22:37:45,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.489908256880734) internal successors, (812), 545 states have internal predecessors, (812), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:45,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 818 transitions. [2024-10-12 22:37:45,889 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 818 transitions. Word has length 148 [2024-10-12 22:37:45,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:45,891 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 818 transitions. [2024-10-12 22:37:45,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:45,891 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 818 transitions. [2024-10-12 22:37:45,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-12 22:37:45,893 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:45,893 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:45,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 22:37:45,893 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:45,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:45,894 INFO L85 PathProgramCache]: Analyzing trace with hash -916139479, now seen corresponding path program 1 times [2024-10-12 22:37:45,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:45,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107644196] [2024-10-12 22:37:45,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:45,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:46,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:46,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:46,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:46,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:46,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107644196] [2024-10-12 22:37:46,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107644196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:46,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:46,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:46,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873606452] [2024-10-12 22:37:46,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:46,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:46,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:46,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:46,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:46,290 INFO L87 Difference]: Start difference. First operand 550 states and 818 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:46,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:46,679 INFO L93 Difference]: Finished difference Result 1370 states and 2040 transitions. [2024-10-12 22:37:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:37:46,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 149 [2024-10-12 22:37:46,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:46,684 INFO L225 Difference]: With dead ends: 1370 [2024-10-12 22:37:46,685 INFO L226 Difference]: Without dead ends: 550 [2024-10-12 22:37:46,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 22:37:46,689 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 1618 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:46,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 2346 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 22:37:46,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-10-12 22:37:46,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-10-12 22:37:46,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4880733944954128) internal successors, (811), 545 states have internal predecessors, (811), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:46,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 817 transitions. [2024-10-12 22:37:46,706 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 817 transitions. Word has length 149 [2024-10-12 22:37:46,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:46,707 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 817 transitions. [2024-10-12 22:37:46,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 817 transitions. [2024-10-12 22:37:46,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-12 22:37:46,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:46,710 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:46,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 22:37:46,711 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:46,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:46,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2116961565, now seen corresponding path program 1 times [2024-10-12 22:37:46,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:46,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274293694] [2024-10-12 22:37:46,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:46,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,066 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:47,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:47,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274293694] [2024-10-12 22:37:47,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274293694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:47,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:47,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:47,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669301610] [2024-10-12 22:37:47,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:47,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:47,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:47,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:47,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:47,069 INFO L87 Difference]: Start difference. First operand 550 states and 817 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:47,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:47,096 INFO L93 Difference]: Finished difference Result 1001 states and 1486 transitions. [2024-10-12 22:37:47,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:47,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 150 [2024-10-12 22:37:47,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:47,098 INFO L225 Difference]: With dead ends: 1001 [2024-10-12 22:37:47,098 INFO L226 Difference]: Without dead ends: 552 [2024-10-12 22:37:47,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:47,100 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 0 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2428 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 [2024-10-12 22:37:47,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2428 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:47,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-12 22:37:47,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-12 22:37:47,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4862888482632541) internal successors, (813), 547 states have internal predecessors, (813), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:47,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 819 transitions. [2024-10-12 22:37:47,112 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 819 transitions. Word has length 150 [2024-10-12 22:37:47,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:47,113 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 819 transitions. [2024-10-12 22:37:47,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:47,113 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 819 transitions. [2024-10-12 22:37:47,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-12 22:37:47,114 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:47,115 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:47,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 22:37:47,115 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:47,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:47,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1995703104, now seen corresponding path program 1 times [2024-10-12 22:37:47,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:47,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843684483] [2024-10-12 22:37:47,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:47,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,580 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:47,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:47,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843684483] [2024-10-12 22:37:47,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843684483] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:47,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:47,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:47,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459798469] [2024-10-12 22:37:47,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:47,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:47,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:47,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:47,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:47,582 INFO L87 Difference]: Start difference. First operand 552 states and 819 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:47,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:47,726 INFO L93 Difference]: Finished difference Result 1003 states and 1487 transitions. [2024-10-12 22:37:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:47,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 151 [2024-10-12 22:37:47,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:47,728 INFO L225 Difference]: With dead ends: 1003 [2024-10-12 22:37:47,728 INFO L226 Difference]: Without dead ends: 552 [2024-10-12 22:37:47,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:47,729 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 691 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1466 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 [2024-10-12 22:37:47,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1466 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:47,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-12 22:37:47,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-12 22:37:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.482632541133455) internal successors, (811), 547 states have internal predecessors, (811), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:47,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 817 transitions. [2024-10-12 22:37:47,738 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 817 transitions. Word has length 151 [2024-10-12 22:37:47,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:47,739 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 817 transitions. [2024-10-12 22:37:47,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:47,739 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 817 transitions. [2024-10-12 22:37:47,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-12 22:37:47,740 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:47,740 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:47,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 22:37:47,741 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:47,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:47,741 INFO L85 PathProgramCache]: Analyzing trace with hash -2017817603, now seen corresponding path program 1 times [2024-10-12 22:37:47,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:47,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620342116] [2024-10-12 22:37:47,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:47,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:47,988 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:47,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:47,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620342116] [2024-10-12 22:37:47,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620342116] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:47,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:47,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:47,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644390168] [2024-10-12 22:37:47,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:47,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:47,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:47,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:47,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:47,991 INFO L87 Difference]: Start difference. First operand 552 states and 817 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:48,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:48,099 INFO L93 Difference]: Finished difference Result 1011 states and 1494 transitions. [2024-10-12 22:37:48,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 22:37:48,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 153 [2024-10-12 22:37:48,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:48,102 INFO L225 Difference]: With dead ends: 1011 [2024-10-12 22:37:48,102 INFO L226 Difference]: Without dead ends: 552 [2024-10-12 22:37:48,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 22:37:48,103 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 706 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:48,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 2341 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:48,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-12 22:37:48,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-12 22:37:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4808043875685557) internal successors, (810), 547 states have internal predecessors, (810), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:48,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 816 transitions. [2024-10-12 22:37:48,112 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 816 transitions. Word has length 153 [2024-10-12 22:37:48,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:48,113 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 816 transitions. [2024-10-12 22:37:48,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:48,113 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 816 transitions. [2024-10-12 22:37:48,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-12 22:37:48,114 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:48,114 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:48,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 22:37:48,114 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:48,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:48,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1452993414, now seen corresponding path program 1 times [2024-10-12 22:37:48,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:48,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903831152] [2024-10-12 22:37:48,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:48,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:48,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:48,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:48,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:48,385 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:48,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:48,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903831152] [2024-10-12 22:37:48,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903831152] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:48,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:48,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:48,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75660773] [2024-10-12 22:37:48,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:48,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:48,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:48,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:48,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:48,388 INFO L87 Difference]: Start difference. First operand 552 states and 816 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:48,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:48,520 INFO L93 Difference]: Finished difference Result 1003 states and 1481 transitions. [2024-10-12 22:37:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:48,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 154 [2024-10-12 22:37:48,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:48,522 INFO L225 Difference]: With dead ends: 1003 [2024-10-12 22:37:48,522 INFO L226 Difference]: Without dead ends: 552 [2024-10-12 22:37:48,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:48,523 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 1493 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:48,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1466 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:48,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-12 22:37:48,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-12 22:37:48,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4789762340036563) internal successors, (809), 547 states have internal predecessors, (809), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:48,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 815 transitions. [2024-10-12 22:37:48,532 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 815 transitions. Word has length 154 [2024-10-12 22:37:48,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:48,532 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 815 transitions. [2024-10-12 22:37:48,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:48,533 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 815 transitions. [2024-10-12 22:37:48,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-12 22:37:48,534 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:48,534 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:48,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 22:37:48,534 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:48,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:48,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1074208234, now seen corresponding path program 1 times [2024-10-12 22:37:48,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:48,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029219793] [2024-10-12 22:37:48,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:48,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:48,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:48,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:48,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:48,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:48,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029219793] [2024-10-12 22:37:48,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029219793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:48,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:48,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:48,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689221762] [2024-10-12 22:37:48,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:48,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:48,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:48,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:48,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:48,799 INFO L87 Difference]: Start difference. First operand 552 states and 815 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:48,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:48,953 INFO L93 Difference]: Finished difference Result 1003 states and 1479 transitions. [2024-10-12 22:37:48,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:48,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 155 [2024-10-12 22:37:48,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:48,956 INFO L225 Difference]: With dead ends: 1003 [2024-10-12 22:37:48,956 INFO L226 Difference]: Without dead ends: 552 [2024-10-12 22:37:48,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:48,960 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 797 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:48,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 1472 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-12 22:37:48,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-12 22:37:48,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.477148080438757) internal successors, (808), 547 states have internal predecessors, (808), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:48,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 814 transitions. [2024-10-12 22:37:48,971 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 814 transitions. Word has length 155 [2024-10-12 22:37:48,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:48,972 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 814 transitions. [2024-10-12 22:37:48,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:48,972 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 814 transitions. [2024-10-12 22:37:48,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-12 22:37:48,974 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:48,974 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:48,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 22:37:48,975 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:48,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:48,976 INFO L85 PathProgramCache]: Analyzing trace with hash 195235007, now seen corresponding path program 1 times [2024-10-12 22:37:48,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:48,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679361412] [2024-10-12 22:37:48,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:48,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:49,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:49,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:49,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:49,293 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:49,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:49,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679361412] [2024-10-12 22:37:49,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679361412] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:49,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:49,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:49,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603040157] [2024-10-12 22:37:49,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:49,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:49,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:49,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:49,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:49,295 INFO L87 Difference]: Start difference. First operand 552 states and 814 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:49,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:49,423 INFO L93 Difference]: Finished difference Result 1003 states and 1477 transitions. [2024-10-12 22:37:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:49,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 156 [2024-10-12 22:37:49,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:49,425 INFO L225 Difference]: With dead ends: 1003 [2024-10-12 22:37:49,426 INFO L226 Difference]: Without dead ends: 552 [2024-10-12 22:37:49,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:49,428 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 1477 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:49,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1466 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:49,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-12 22:37:49,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-12 22:37:49,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4753199268738575) internal successors, (807), 547 states have internal predecessors, (807), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:49,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 813 transitions. [2024-10-12 22:37:49,438 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 813 transitions. Word has length 156 [2024-10-12 22:37:49,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:49,439 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 813 transitions. [2024-10-12 22:37:49,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:49,439 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 813 transitions. [2024-10-12 22:37:49,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-12 22:37:49,440 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:49,440 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:49,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 22:37:49,440 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:49,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:49,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1288962223, now seen corresponding path program 1 times [2024-10-12 22:37:49,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:49,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254238120] [2024-10-12 22:37:49,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:49,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:49,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:49,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:49,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:49,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:49,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254238120] [2024-10-12 22:37:49,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254238120] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:49,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:49,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:49,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738323220] [2024-10-12 22:37:49,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:49,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:49,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:49,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:49,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:49,758 INFO L87 Difference]: Start difference. First operand 552 states and 813 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:49,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:49,889 INFO L93 Difference]: Finished difference Result 1003 states and 1475 transitions. [2024-10-12 22:37:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:49,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 157 [2024-10-12 22:37:49,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:49,892 INFO L225 Difference]: With dead ends: 1003 [2024-10-12 22:37:49,892 INFO L226 Difference]: Without dead ends: 552 [2024-10-12 22:37:49,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:49,893 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 1461 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:49,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 1466 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:49,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-12 22:37:49,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-12 22:37:49,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4734917733089579) internal successors, (806), 547 states have internal predecessors, (806), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:49,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 812 transitions. [2024-10-12 22:37:49,903 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 812 transitions. Word has length 157 [2024-10-12 22:37:49,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:49,903 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 812 transitions. [2024-10-12 22:37:49,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:49,903 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 812 transitions. [2024-10-12 22:37:49,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-12 22:37:49,904 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:49,905 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:49,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 22:37:49,905 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:49,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:49,906 INFO L85 PathProgramCache]: Analyzing trace with hash -536390633, now seen corresponding path program 1 times [2024-10-12 22:37:49,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:49,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173752734] [2024-10-12 22:37:49,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:49,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:50,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:50,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:50,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:50,191 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:50,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:50,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173752734] [2024-10-12 22:37:50,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173752734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:50,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:50,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:50,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352119630] [2024-10-12 22:37:50,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:50,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:50,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:50,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:50,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:50,194 INFO L87 Difference]: Start difference. First operand 552 states and 812 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:50,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:50,325 INFO L93 Difference]: Finished difference Result 1003 states and 1473 transitions. [2024-10-12 22:37:50,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:50,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 158 [2024-10-12 22:37:50,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:50,328 INFO L225 Difference]: With dead ends: 1003 [2024-10-12 22:37:50,328 INFO L226 Difference]: Without dead ends: 552 [2024-10-12 22:37:50,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:50,329 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 781 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1472 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 [2024-10-12 22:37:50,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1472 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:50,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-12 22:37:50,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-12 22:37:50,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4716636197440585) internal successors, (805), 547 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:50,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 811 transitions. [2024-10-12 22:37:50,339 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 811 transitions. Word has length 158 [2024-10-12 22:37:50,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:50,339 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 811 transitions. [2024-10-12 22:37:50,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:50,340 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 811 transitions. [2024-10-12 22:37:50,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-12 22:37:50,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:50,341 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:50,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 22:37:50,341 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:50,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:50,341 INFO L85 PathProgramCache]: Analyzing trace with hash -370294744, now seen corresponding path program 1 times [2024-10-12 22:37:50,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:50,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89160777] [2024-10-12 22:37:50,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:50,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:50,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:50,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:50,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:50,627 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:50,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:50,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89160777] [2024-10-12 22:37:50,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89160777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:50,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:50,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:50,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535122363] [2024-10-12 22:37:50,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:50,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:50,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:50,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:50,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:50,630 INFO L87 Difference]: Start difference. First operand 552 states and 811 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:50,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:50,753 INFO L93 Difference]: Finished difference Result 1003 states and 1471 transitions. [2024-10-12 22:37:50,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:50,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 159 [2024-10-12 22:37:50,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:50,755 INFO L225 Difference]: With dead ends: 1003 [2024-10-12 22:37:50,755 INFO L226 Difference]: Without dead ends: 552 [2024-10-12 22:37:50,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:50,756 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 1445 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:50,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1466 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:50,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-12 22:37:50,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-12 22:37:50,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.469835466179159) internal successors, (804), 547 states have internal predecessors, (804), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:50,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 810 transitions. [2024-10-12 22:37:50,767 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 810 transitions. Word has length 159 [2024-10-12 22:37:50,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:50,767 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 810 transitions. [2024-10-12 22:37:50,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:50,767 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 810 transitions. [2024-10-12 22:37:50,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-12 22:37:50,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:50,769 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:50,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 22:37:50,769 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:50,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:50,769 INFO L85 PathProgramCache]: Analyzing trace with hash 234386160, now seen corresponding path program 1 times [2024-10-12 22:37:50,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:50,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353573096] [2024-10-12 22:37:50,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:50,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:51,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:51,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353573096] [2024-10-12 22:37:51,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353573096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:51,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:51,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:51,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338558460] [2024-10-12 22:37:51,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:51,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:51,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:51,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:51,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:51,125 INFO L87 Difference]: Start difference. First operand 552 states and 810 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:51,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:51,179 INFO L93 Difference]: Finished difference Result 1002 states and 1468 transitions. [2024-10-12 22:37:51,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:51,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 160 [2024-10-12 22:37:51,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:51,182 INFO L225 Difference]: With dead ends: 1002 [2024-10-12 22:37:51,182 INFO L226 Difference]: Without dead ends: 551 [2024-10-12 22:37:51,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:51,183 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 698 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:51,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1568 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:51,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-10-12 22:37:51,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-10-12 22:37:51,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.467032967032967) internal successors, (801), 546 states have internal predecessors, (801), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:51,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 807 transitions. [2024-10-12 22:37:51,212 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 807 transitions. Word has length 160 [2024-10-12 22:37:51,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:51,212 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 807 transitions. [2024-10-12 22:37:51,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:51,213 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 807 transitions. [2024-10-12 22:37:51,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-12 22:37:51,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:51,214 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:51,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 22:37:51,214 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:51,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:51,215 INFO L85 PathProgramCache]: Analyzing trace with hash -508038908, now seen corresponding path program 1 times [2024-10-12 22:37:51,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:51,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530289275] [2024-10-12 22:37:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:51,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,473 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:51,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:51,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530289275] [2024-10-12 22:37:51,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530289275] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:51,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:51,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:51,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135456530] [2024-10-12 22:37:51,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:51,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:51,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:51,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:51,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:51,475 INFO L87 Difference]: Start difference. First operand 551 states and 807 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:51,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:51,523 INFO L93 Difference]: Finished difference Result 1003 states and 1465 transitions. [2024-10-12 22:37:51,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 22:37:51,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 161 [2024-10-12 22:37:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:51,526 INFO L225 Difference]: With dead ends: 1003 [2024-10-12 22:37:51,526 INFO L226 Difference]: Without dead ends: 551 [2024-10-12 22:37:51,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 22:37:51,527 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 702 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2378 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 [2024-10-12 22:37:51,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 2378 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:51,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-10-12 22:37:51,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-10-12 22:37:51,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.465201465201465) internal successors, (800), 546 states have internal predecessors, (800), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:51,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 806 transitions. [2024-10-12 22:37:51,537 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 806 transitions. Word has length 161 [2024-10-12 22:37:51,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:51,537 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 806 transitions. [2024-10-12 22:37:51,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:51,538 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 806 transitions. [2024-10-12 22:37:51,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-12 22:37:51,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:51,539 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:51,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 22:37:51,539 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:51,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:51,540 INFO L85 PathProgramCache]: Analyzing trace with hash 906561271, now seen corresponding path program 1 times [2024-10-12 22:37:51,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:51,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205501889] [2024-10-12 22:37:51,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:51,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:51,981 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:51,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:51,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205501889] [2024-10-12 22:37:51,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205501889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:51,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:51,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:51,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659944879] [2024-10-12 22:37:51,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:51,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:51,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:51,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:51,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:51,984 INFO L87 Difference]: Start difference. First operand 551 states and 806 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:52,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:52,077 INFO L93 Difference]: Finished difference Result 1001 states and 1461 transitions. [2024-10-12 22:37:52,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:52,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 162 [2024-10-12 22:37:52,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:52,080 INFO L225 Difference]: With dead ends: 1001 [2024-10-12 22:37:52,080 INFO L226 Difference]: Without dead ends: 551 [2024-10-12 22:37:52,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:52,082 INFO L432 NwaCegarLoop]: 759 mSDtfsCounter, 687 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:52,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1520 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:52,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-10-12 22:37:52,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-10-12 22:37:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4633699633699633) internal successors, (799), 546 states have internal predecessors, (799), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:52,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 805 transitions. [2024-10-12 22:37:52,095 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 805 transitions. Word has length 162 [2024-10-12 22:37:52,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:52,095 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 805 transitions. [2024-10-12 22:37:52,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:52,095 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 805 transitions. [2024-10-12 22:37:52,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-12 22:37:52,097 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:52,097 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:52,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 22:37:52,097 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:52,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:52,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1016398073, now seen corresponding path program 1 times [2024-10-12 22:37:52,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:52,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151356059] [2024-10-12 22:37:52,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:52,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:52,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:52,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:52,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:52,364 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:52,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:52,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151356059] [2024-10-12 22:37:52,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151356059] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:52,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:52,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:52,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682840732] [2024-10-12 22:37:52,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:52,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:52,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:52,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:52,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:52,366 INFO L87 Difference]: Start difference. First operand 551 states and 805 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:52,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:52,438 INFO L93 Difference]: Finished difference Result 1007 states and 1467 transitions. [2024-10-12 22:37:52,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 22:37:52,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 163 [2024-10-12 22:37:52,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:52,440 INFO L225 Difference]: With dead ends: 1007 [2024-10-12 22:37:52,440 INFO L226 Difference]: Without dead ends: 551 [2024-10-12 22:37:52,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 22:37:52,441 INFO L432 NwaCegarLoop]: 791 mSDtfsCounter, 698 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:52,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 2346 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-10-12 22:37:52,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-10-12 22:37:52,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4615384615384615) internal successors, (798), 546 states have internal predecessors, (798), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:52,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 804 transitions. [2024-10-12 22:37:52,452 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 804 transitions. Word has length 163 [2024-10-12 22:37:52,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:52,453 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 804 transitions. [2024-10-12 22:37:52,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:52,453 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 804 transitions. [2024-10-12 22:37:52,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-12 22:37:52,454 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:52,454 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:52,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 22:37:52,454 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:52,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:52,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2040102796, now seen corresponding path program 1 times [2024-10-12 22:37:52,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:52,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926194635] [2024-10-12 22:37:52,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:52,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:52,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:52,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:52,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:52,740 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:52,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:52,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926194635] [2024-10-12 22:37:52,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926194635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:52,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:52,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:52,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227645739] [2024-10-12 22:37:52,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:52,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:52,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:52,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:52,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:52,742 INFO L87 Difference]: Start difference. First operand 551 states and 804 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:52,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:52,835 INFO L93 Difference]: Finished difference Result 1001 states and 1457 transitions. [2024-10-12 22:37:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:52,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 164 [2024-10-12 22:37:52,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:52,837 INFO L225 Difference]: With dead ends: 1001 [2024-10-12 22:37:52,837 INFO L226 Difference]: Without dead ends: 551 [2024-10-12 22:37:52,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:52,838 INFO L432 NwaCegarLoop]: 759 mSDtfsCounter, 789 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:52,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1526 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:52,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-10-12 22:37:52,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-10-12 22:37:52,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4597069597069596) internal successors, (797), 546 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:52,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 803 transitions. [2024-10-12 22:37:52,848 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 803 transitions. Word has length 164 [2024-10-12 22:37:52,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:52,849 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 803 transitions. [2024-10-12 22:37:52,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:52,849 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 803 transitions. [2024-10-12 22:37:52,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-12 22:37:52,850 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:52,850 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:52,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 22:37:52,850 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:52,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:52,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1699227218, now seen corresponding path program 1 times [2024-10-12 22:37:52,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:52,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141227977] [2024-10-12 22:37:52,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:52,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:53,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:53,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:53,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:53,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:53,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141227977] [2024-10-12 22:37:53,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141227977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:53,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:53,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:53,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657816891] [2024-10-12 22:37:53,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:53,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:53,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:53,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:53,092 INFO L87 Difference]: Start difference. First operand 551 states and 803 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:53,172 INFO L93 Difference]: Finished difference Result 1001 states and 1455 transitions. [2024-10-12 22:37:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:53,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 165 [2024-10-12 22:37:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:53,175 INFO L225 Difference]: With dead ends: 1001 [2024-10-12 22:37:53,175 INFO L226 Difference]: Without dead ends: 551 [2024-10-12 22:37:53,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:53,175 INFO L432 NwaCegarLoop]: 759 mSDtfsCounter, 1467 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:53,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 1520 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-10-12 22:37:53,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-10-12 22:37:53,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4578754578754578) internal successors, (796), 546 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:53,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 802 transitions. [2024-10-12 22:37:53,185 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 802 transitions. Word has length 165 [2024-10-12 22:37:53,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:53,186 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 802 transitions. [2024-10-12 22:37:53,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:53,186 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 802 transitions. [2024-10-12 22:37:53,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-12 22:37:53,187 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:53,187 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:53,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 22:37:53,188 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:53,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:53,188 INFO L85 PathProgramCache]: Analyzing trace with hash 671880581, now seen corresponding path program 1 times [2024-10-12 22:37:53,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:53,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399141266] [2024-10-12 22:37:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:53,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:53,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:53,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 22:37:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:53,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 22:37:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:53,608 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:53,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:53,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399141266] [2024-10-12 22:37:53,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399141266] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:53,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:53,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:53,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023901] [2024-10-12 22:37:53,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:53,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:53,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:53,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:53,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:53,610 INFO L87 Difference]: Start difference. First operand 551 states and 802 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:37:53,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:53,659 INFO L93 Difference]: Finished difference Result 1001 states and 1453 transitions. [2024-10-12 22:37:53,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:53,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 166 [2024-10-12 22:37:53,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:53,661 INFO L225 Difference]: With dead ends: 1001 [2024-10-12 22:37:53,661 INFO L226 Difference]: Without dead ends: 551 [2024-10-12 22:37:53,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:53,662 INFO L432 NwaCegarLoop]: 781 mSDtfsCounter, 732 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1564 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 [2024-10-12 22:37:53,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1564 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:53,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-10-12 22:37:53,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-10-12 22:37:53,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.456043956043956) internal successors, (795), 546 states have internal predecessors, (795), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:53,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 801 transitions. [2024-10-12 22:37:53,671 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 801 transitions. Word has length 166 [2024-10-12 22:37:53,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:53,671 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 801 transitions. [2024-10-12 22:37:53,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:37:53,672 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 801 transitions. [2024-10-12 22:37:53,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-12 22:37:53,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:53,673 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:53,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 22:37:53,673 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:53,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:53,673 INFO L85 PathProgramCache]: Analyzing trace with hash 316806725, now seen corresponding path program 1 times [2024-10-12 22:37:53,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:53,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559321448] [2024-10-12 22:37:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:53,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:54,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:54,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 22:37:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:54,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 22:37:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:54,050 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:54,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:54,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559321448] [2024-10-12 22:37:54,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559321448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:54,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:54,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:54,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503353407] [2024-10-12 22:37:54,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:54,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:54,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:54,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:54,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:54,052 INFO L87 Difference]: Start difference. First operand 551 states and 801 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:37:54,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:54,096 INFO L93 Difference]: Finished difference Result 1001 states and 1451 transitions. [2024-10-12 22:37:54,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:54,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 167 [2024-10-12 22:37:54,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:54,098 INFO L225 Difference]: With dead ends: 1001 [2024-10-12 22:37:54,098 INFO L226 Difference]: Without dead ends: 551 [2024-10-12 22:37:54,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:54,099 INFO L432 NwaCegarLoop]: 781 mSDtfsCounter, 730 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:54,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 1564 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:54,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-10-12 22:37:54,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-10-12 22:37:54,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4542124542124542) internal successors, (794), 546 states have internal predecessors, (794), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:54,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 800 transitions. [2024-10-12 22:37:54,109 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 800 transitions. Word has length 167 [2024-10-12 22:37:54,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:54,109 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 800 transitions. [2024-10-12 22:37:54,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:37:54,110 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 800 transitions. [2024-10-12 22:37:54,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-12 22:37:54,111 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:54,111 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:54,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 22:37:54,112 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:54,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:54,112 INFO L85 PathProgramCache]: Analyzing trace with hash -605643934, now seen corresponding path program 1 times [2024-10-12 22:37:54,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:54,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195174337] [2024-10-12 22:37:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:54,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:54,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:54,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:37:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:54,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:37:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:54,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:54,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195174337] [2024-10-12 22:37:54,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195174337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:54,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:54,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:54,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495988427] [2024-10-12 22:37:54,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:54,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:54,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:54,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:54,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:54,507 INFO L87 Difference]: Start difference. First operand 551 states and 800 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:54,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:54,552 INFO L93 Difference]: Finished difference Result 1001 states and 1449 transitions. [2024-10-12 22:37:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:54,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 168 [2024-10-12 22:37:54,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:54,555 INFO L225 Difference]: With dead ends: 1001 [2024-10-12 22:37:54,555 INFO L226 Difference]: Without dead ends: 551 [2024-10-12 22:37:54,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:54,556 INFO L432 NwaCegarLoop]: 777 mSDtfsCounter, 690 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:54,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1556 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:54,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-10-12 22:37:54,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-10-12 22:37:54,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4523809523809523) internal successors, (793), 546 states have internal predecessors, (793), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 799 transitions. [2024-10-12 22:37:54,565 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 799 transitions. Word has length 168 [2024-10-12 22:37:54,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:54,566 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 799 transitions. [2024-10-12 22:37:54,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:54,566 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 799 transitions. [2024-10-12 22:37:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-12 22:37:54,567 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:54,567 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:54,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 22:37:54,567 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:54,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:54,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1754427666, now seen corresponding path program 1 times [2024-10-12 22:37:54,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:54,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871552948] [2024-10-12 22:37:54,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:54,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:55,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:55,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:37:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:55,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:37:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:55,170 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:55,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:55,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871552948] [2024-10-12 22:37:55,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871552948] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:55,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:55,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:55,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774274343] [2024-10-12 22:37:55,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:55,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:55,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:55,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:55,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:55,172 INFO L87 Difference]: Start difference. First operand 551 states and 799 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:55,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:55,415 INFO L93 Difference]: Finished difference Result 1007 states and 1455 transitions. [2024-10-12 22:37:55,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 22:37:55,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 169 [2024-10-12 22:37:55,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:55,419 INFO L225 Difference]: With dead ends: 1007 [2024-10-12 22:37:55,419 INFO L226 Difference]: Without dead ends: 555 [2024-10-12 22:37:55,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:55,420 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 2 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:55,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2962 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 22:37:55,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-12 22:37:55,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 553. [2024-10-12 22:37:55,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4507299270072993) internal successors, (795), 548 states have internal predecessors, (795), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:55,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 801 transitions. [2024-10-12 22:37:55,433 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 801 transitions. Word has length 169 [2024-10-12 22:37:55,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:55,433 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 801 transitions. [2024-10-12 22:37:55,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:55,433 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 801 transitions. [2024-10-12 22:37:55,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-12 22:37:55,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:55,435 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:55,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 22:37:55,435 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:55,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:55,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1496616897, now seen corresponding path program 1 times [2024-10-12 22:37:55,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:55,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66809030] [2024-10-12 22:37:55,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:55,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:55,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:55,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:37:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:55,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:37:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:55,795 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:55,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:55,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66809030] [2024-10-12 22:37:55,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66809030] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:55,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:55,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:55,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838941633] [2024-10-12 22:37:55,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:55,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:55,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:55,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:55,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:55,797 INFO L87 Difference]: Start difference. First operand 553 states and 801 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:55,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:55,884 INFO L93 Difference]: Finished difference Result 1005 states and 1451 transitions. [2024-10-12 22:37:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:55,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 170 [2024-10-12 22:37:55,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:55,886 INFO L225 Difference]: With dead ends: 1005 [2024-10-12 22:37:55,886 INFO L226 Difference]: Without dead ends: 553 [2024-10-12 22:37:55,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:55,887 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 681 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1514 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 [2024-10-12 22:37:55,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1514 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:55,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-10-12 22:37:55,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-10-12 22:37:55,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.448905109489051) internal successors, (794), 548 states have internal predecessors, (794), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:55,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 800 transitions. [2024-10-12 22:37:55,897 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 800 transitions. Word has length 170 [2024-10-12 22:37:55,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:55,897 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 800 transitions. [2024-10-12 22:37:55,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:55,898 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 800 transitions. [2024-10-12 22:37:55,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 22:37:55,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:55,899 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:55,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 22:37:55,899 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:55,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:55,899 INFO L85 PathProgramCache]: Analyzing trace with hash -593654731, now seen corresponding path program 1 times [2024-10-12 22:37:55,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:55,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124222476] [2024-10-12 22:37:55,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:55,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:56,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:56,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:37:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:56,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:37:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:56,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:56,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:56,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124222476] [2024-10-12 22:37:56,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124222476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:56,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:56,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:56,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377013353] [2024-10-12 22:37:56,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:56,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:56,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:56,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:56,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:56,281 INFO L87 Difference]: Start difference. First operand 553 states and 800 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:56,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:56,369 INFO L93 Difference]: Finished difference Result 1005 states and 1449 transitions. [2024-10-12 22:37:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:56,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 171 [2024-10-12 22:37:56,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:56,372 INFO L225 Difference]: With dead ends: 1005 [2024-10-12 22:37:56,372 INFO L226 Difference]: Without dead ends: 553 [2024-10-12 22:37:56,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:56,373 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 679 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:56,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 1520 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:56,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-10-12 22:37:56,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-10-12 22:37:56,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.447080291970803) internal successors, (793), 548 states have internal predecessors, (793), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:56,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 799 transitions. [2024-10-12 22:37:56,382 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 799 transitions. Word has length 171 [2024-10-12 22:37:56,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:56,383 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 799 transitions. [2024-10-12 22:37:56,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:56,383 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 799 transitions. [2024-10-12 22:37:56,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-12 22:37:56,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:56,384 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:56,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-12 22:37:56,385 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:56,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:56,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1876178530, now seen corresponding path program 1 times [2024-10-12 22:37:56,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:56,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693645608] [2024-10-12 22:37:56,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:56,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:56,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:56,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:37:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:56,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:37:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:56,747 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:56,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:56,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693645608] [2024-10-12 22:37:56,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693645608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:56,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:56,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:56,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218533959] [2024-10-12 22:37:56,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:56,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:56,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:56,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:56,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:56,749 INFO L87 Difference]: Start difference. First operand 553 states and 799 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:56,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:56,836 INFO L93 Difference]: Finished difference Result 1005 states and 1447 transitions. [2024-10-12 22:37:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:56,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 172 [2024-10-12 22:37:56,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:56,838 INFO L225 Difference]: With dead ends: 1005 [2024-10-12 22:37:56,841 INFO L226 Difference]: Without dead ends: 553 [2024-10-12 22:37:56,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:56,842 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 678 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:56,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1520 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:56,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-10-12 22:37:56,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-10-12 22:37:56,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4452554744525548) internal successors, (792), 548 states have internal predecessors, (792), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:56,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 798 transitions. [2024-10-12 22:37:56,858 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 798 transitions. Word has length 172 [2024-10-12 22:37:56,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:56,858 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 798 transitions. [2024-10-12 22:37:56,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:56,858 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 798 transitions. [2024-10-12 22:37:56,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-12 22:37:56,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:56,863 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:56,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-12 22:37:56,864 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:56,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:56,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1875671830, now seen corresponding path program 1 times [2024-10-12 22:37:56,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:56,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145548301] [2024-10-12 22:37:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:56,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:57,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:57,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:37:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:57,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:37:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:57,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:57,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:57,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145548301] [2024-10-12 22:37:57,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145548301] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:57,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:57,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:57,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563902996] [2024-10-12 22:37:57,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:57,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:57,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:57,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:57,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:57,444 INFO L87 Difference]: Start difference. First operand 553 states and 798 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:57,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:57,768 INFO L93 Difference]: Finished difference Result 1007 states and 1448 transitions. [2024-10-12 22:37:57,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 22:37:57,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 173 [2024-10-12 22:37:57,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:57,770 INFO L225 Difference]: With dead ends: 1007 [2024-10-12 22:37:57,770 INFO L226 Difference]: Without dead ends: 555 [2024-10-12 22:37:57,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:57,771 INFO L432 NwaCegarLoop]: 601 mSDtfsCounter, 694 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:57,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1785 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 22:37:57,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-12 22:37:57,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 554. [2024-10-12 22:37:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4444444444444444) internal successors, (793), 549 states have internal predecessors, (793), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 799 transitions. [2024-10-12 22:37:57,783 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 799 transitions. Word has length 173 [2024-10-12 22:37:57,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:57,783 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 799 transitions. [2024-10-12 22:37:57,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:57,783 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 799 transitions. [2024-10-12 22:37:57,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-12 22:37:57,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:57,785 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:57,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-12 22:37:57,785 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:57,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:57,785 INFO L85 PathProgramCache]: Analyzing trace with hash 398417565, now seen corresponding path program 1 times [2024-10-12 22:37:57,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:57,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710905975] [2024-10-12 22:37:57,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:57,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:58,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:58,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:37:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:58,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:37:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:58,196 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:58,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:58,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710905975] [2024-10-12 22:37:58,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710905975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:58,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:58,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:58,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677949714] [2024-10-12 22:37:58,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:58,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:58,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:58,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:58,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:58,198 INFO L87 Difference]: Start difference. First operand 554 states and 799 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:58,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:58,322 INFO L93 Difference]: Finished difference Result 1007 states and 1447 transitions. [2024-10-12 22:37:58,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:58,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 173 [2024-10-12 22:37:58,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:58,324 INFO L225 Difference]: With dead ends: 1007 [2024-10-12 22:37:58,324 INFO L226 Difference]: Without dead ends: 554 [2024-10-12 22:37:58,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:58,326 INFO L432 NwaCegarLoop]: 718 mSDtfsCounter, 665 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:58,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1438 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:58,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-10-12 22:37:58,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-10-12 22:37:58,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4426229508196722) internal successors, (792), 549 states have internal predecessors, (792), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 798 transitions. [2024-10-12 22:37:58,337 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 798 transitions. Word has length 173 [2024-10-12 22:37:58,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:58,337 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 798 transitions. [2024-10-12 22:37:58,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 798 transitions. [2024-10-12 22:37:58,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-12 22:37:58,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:58,339 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:58,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-12 22:37:58,339 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:58,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:58,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1981049431, now seen corresponding path program 1 times [2024-10-12 22:37:58,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:58,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279031917] [2024-10-12 22:37:58,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:58,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:58,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:58,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:37:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:58,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:37:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:58,704 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:58,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:58,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279031917] [2024-10-12 22:37:58,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279031917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:58,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:58,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:58,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579401251] [2024-10-12 22:37:58,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:58,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:58,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:58,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:58,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:58,706 INFO L87 Difference]: Start difference. First operand 554 states and 798 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:58,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:58,878 INFO L93 Difference]: Finished difference Result 1009 states and 1447 transitions. [2024-10-12 22:37:58,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:58,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 174 [2024-10-12 22:37:58,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:58,881 INFO L225 Difference]: With dead ends: 1009 [2024-10-12 22:37:58,881 INFO L226 Difference]: Without dead ends: 554 [2024-10-12 22:37:58,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:58,882 INFO L432 NwaCegarLoop]: 785 mSDtfsCounter, 2 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2167 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:58,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2167 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 22:37:58,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-10-12 22:37:58,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-10-12 22:37:58,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4408014571948997) internal successors, (791), 549 states have internal predecessors, (791), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:58,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 797 transitions. [2024-10-12 22:37:58,891 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 797 transitions. Word has length 174 [2024-10-12 22:37:58,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:58,891 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 797 transitions. [2024-10-12 22:37:58,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:58,891 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 797 transitions. [2024-10-12 22:37:58,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-12 22:37:58,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:58,892 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:58,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-12 22:37:58,893 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:58,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:58,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1581365748, now seen corresponding path program 1 times [2024-10-12 22:37:58,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:58,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482675592] [2024-10-12 22:37:58,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:58,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:59,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:59,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:37:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:59,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:37:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:59,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:59,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482675592] [2024-10-12 22:37:59,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482675592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:59,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:59,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:59,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024260275] [2024-10-12 22:37:59,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:59,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:59,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:59,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:59,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:59,315 INFO L87 Difference]: Start difference. First operand 554 states and 797 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:59,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:59,449 INFO L93 Difference]: Finished difference Result 1007 states and 1443 transitions. [2024-10-12 22:37:59,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:59,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 175 [2024-10-12 22:37:59,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:59,451 INFO L225 Difference]: With dead ends: 1007 [2024-10-12 22:37:59,452 INFO L226 Difference]: Without dead ends: 554 [2024-10-12 22:37:59,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:59,452 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 1314 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:59,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1436 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:37:59,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-10-12 22:37:59,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-10-12 22:37:59,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4389799635701275) internal successors, (790), 549 states have internal predecessors, (790), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:59,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 796 transitions. [2024-10-12 22:37:59,463 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 796 transitions. Word has length 175 [2024-10-12 22:37:59,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:59,464 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 796 transitions. [2024-10-12 22:37:59,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:59,464 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 796 transitions. [2024-10-12 22:37:59,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 22:37:59,465 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:59,465 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:59,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-12 22:37:59,466 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:59,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:59,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1852705535, now seen corresponding path program 1 times [2024-10-12 22:37:59,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:59,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054373663] [2024-10-12 22:37:59,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:59,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:59,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:37:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:59,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:37:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:59,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:37:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:59,879 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:59,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:59,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054373663] [2024-10-12 22:37:59,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054373663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:59,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:59,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:59,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766908949] [2024-10-12 22:37:59,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:59,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:59,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:59,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:59,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:59,882 INFO L87 Difference]: Start difference. First operand 554 states and 796 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:00,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:00,031 INFO L93 Difference]: Finished difference Result 1007 states and 1441 transitions. [2024-10-12 22:38:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:00,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 176 [2024-10-12 22:38:00,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:00,034 INFO L225 Difference]: With dead ends: 1007 [2024-10-12 22:38:00,034 INFO L226 Difference]: Without dead ends: 554 [2024-10-12 22:38:00,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:00,036 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 658 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:00,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1442 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:00,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-10-12 22:38:00,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-10-12 22:38:00,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4371584699453552) internal successors, (789), 549 states have internal predecessors, (789), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:00,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 795 transitions. [2024-10-12 22:38:00,048 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 795 transitions. Word has length 176 [2024-10-12 22:38:00,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:00,049 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 795 transitions. [2024-10-12 22:38:00,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:00,049 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 795 transitions. [2024-10-12 22:38:00,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-12 22:38:00,050 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:00,051 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:00,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-12 22:38:00,051 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:00,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:00,051 INFO L85 PathProgramCache]: Analyzing trace with hash -121702763, now seen corresponding path program 1 times [2024-10-12 22:38:00,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:00,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260786853] [2024-10-12 22:38:00,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:00,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:00,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:00,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:38:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:00,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:38:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:00,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:00,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260786853] [2024-10-12 22:38:00,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260786853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:00,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:00,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:00,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193162487] [2024-10-12 22:38:00,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:00,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:00,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:00,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:00,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:00,409 INFO L87 Difference]: Start difference. First operand 554 states and 795 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:00,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:00,536 INFO L93 Difference]: Finished difference Result 1007 states and 1439 transitions. [2024-10-12 22:38:00,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:00,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 177 [2024-10-12 22:38:00,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:00,539 INFO L225 Difference]: With dead ends: 1007 [2024-10-12 22:38:00,539 INFO L226 Difference]: Without dead ends: 554 [2024-10-12 22:38:00,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:00,539 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 657 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:00,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1442 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:00,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-10-12 22:38:00,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-10-12 22:38:00,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4353369763205828) internal successors, (788), 549 states have internal predecessors, (788), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:00,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 794 transitions. [2024-10-12 22:38:00,549 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 794 transitions. Word has length 177 [2024-10-12 22:38:00,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:00,549 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 794 transitions. [2024-10-12 22:38:00,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:00,550 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 794 transitions. [2024-10-12 22:38:00,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-12 22:38:00,551 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:00,551 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:00,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-12 22:38:00,551 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:00,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:00,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1096084962, now seen corresponding path program 1 times [2024-10-12 22:38:00,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:00,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547417716] [2024-10-12 22:38:00,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:00,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:00,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:00,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:38:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:00,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:38:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:00,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:00,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547417716] [2024-10-12 22:38:00,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547417716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:00,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:00,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:00,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956171815] [2024-10-12 22:38:00,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:00,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:00,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:00,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:00,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:00,898 INFO L87 Difference]: Start difference. First operand 554 states and 794 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:01,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:01,040 INFO L93 Difference]: Finished difference Result 1007 states and 1437 transitions. [2024-10-12 22:38:01,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:01,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 178 [2024-10-12 22:38:01,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:01,067 INFO L225 Difference]: With dead ends: 1007 [2024-10-12 22:38:01,067 INFO L226 Difference]: Without dead ends: 554 [2024-10-12 22:38:01,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:01,069 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 1292 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:01,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 1436 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:01,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-10-12 22:38:01,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-10-12 22:38:01,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4335154826958105) internal successors, (787), 549 states have internal predecessors, (787), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:01,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 793 transitions. [2024-10-12 22:38:01,079 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 793 transitions. Word has length 178 [2024-10-12 22:38:01,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:01,080 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 793 transitions. [2024-10-12 22:38:01,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:01,080 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 793 transitions. [2024-10-12 22:38:01,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-12 22:38:01,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:01,081 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:01,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-12 22:38:01,081 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:01,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:01,081 INFO L85 PathProgramCache]: Analyzing trace with hash 206983223, now seen corresponding path program 1 times [2024-10-12 22:38:01,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:01,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137035937] [2024-10-12 22:38:01,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:01,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:01,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:01,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:38:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:01,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:38:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:01,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:01,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137035937] [2024-10-12 22:38:01,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137035937] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:01,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:01,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:01,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719658271] [2024-10-12 22:38:01,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:01,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:01,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:01,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:01,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:01,409 INFO L87 Difference]: Start difference. First operand 554 states and 793 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:01,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:01,532 INFO L93 Difference]: Finished difference Result 1007 states and 1435 transitions. [2024-10-12 22:38:01,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:01,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 179 [2024-10-12 22:38:01,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:01,535 INFO L225 Difference]: With dead ends: 1007 [2024-10-12 22:38:01,535 INFO L226 Difference]: Without dead ends: 554 [2024-10-12 22:38:01,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:01,536 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 1286 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:01,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 1436 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:01,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-10-12 22:38:01,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-10-12 22:38:01,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4316939890710383) internal successors, (786), 549 states have internal predecessors, (786), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:01,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 792 transitions. [2024-10-12 22:38:01,544 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 792 transitions. Word has length 179 [2024-10-12 22:38:01,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:01,544 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 792 transitions. [2024-10-12 22:38:01,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:01,545 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 792 transitions. [2024-10-12 22:38:01,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-12 22:38:01,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:01,545 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:01,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-12 22:38:01,546 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:01,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:01,546 INFO L85 PathProgramCache]: Analyzing trace with hash -145783715, now seen corresponding path program 1 times [2024-10-12 22:38:01,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:01,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990953511] [2024-10-12 22:38:01,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:01,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:01,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:01,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 22:38:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:01,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 22:38:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:01,958 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:01,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:01,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990953511] [2024-10-12 22:38:01,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990953511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:01,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:01,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 22:38:01,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791779676] [2024-10-12 22:38:01,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:01,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 22:38:01,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:01,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 22:38:01,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 22:38:01,960 INFO L87 Difference]: Start difference. First operand 554 states and 792 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:02,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:02,222 INFO L93 Difference]: Finished difference Result 1057 states and 1506 transitions. [2024-10-12 22:38:02,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 22:38:02,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 180 [2024-10-12 22:38:02,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:02,225 INFO L225 Difference]: With dead ends: 1057 [2024-10-12 22:38:02,226 INFO L226 Difference]: Without dead ends: 558 [2024-10-12 22:38:02,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-12 22:38:02,227 INFO L432 NwaCegarLoop]: 819 mSDtfsCounter, 754 mSDsluCounter, 3045 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:02,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 3864 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 22:38:02,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-10-12 22:38:02,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 556. [2024-10-12 22:38:02,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.428312159709619) internal successors, (787), 551 states have internal predecessors, (787), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:02,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 793 transitions. [2024-10-12 22:38:02,239 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 793 transitions. Word has length 180 [2024-10-12 22:38:02,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:02,240 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 793 transitions. [2024-10-12 22:38:02,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:02,240 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 793 transitions. [2024-10-12 22:38:02,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-12 22:38:02,240 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:02,240 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:02,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-12 22:38:02,241 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:02,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:02,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1599762898, now seen corresponding path program 1 times [2024-10-12 22:38:02,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:02,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911720007] [2024-10-12 22:38:02,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:02,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:02,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:02,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 22:38:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:02,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 22:38:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:02,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:02,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:02,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911720007] [2024-10-12 22:38:02,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911720007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:02,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:02,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:02,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654380827] [2024-10-12 22:38:02,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:02,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:02,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:02,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:02,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:02,782 INFO L87 Difference]: Start difference. First operand 556 states and 793 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:02,817 INFO L93 Difference]: Finished difference Result 1089 states and 1523 transitions. [2024-10-12 22:38:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 22:38:02,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 181 [2024-10-12 22:38:02,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:02,819 INFO L225 Difference]: With dead ends: 1089 [2024-10-12 22:38:02,820 INFO L226 Difference]: Without dead ends: 634 [2024-10-12 22:38:02,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:02,820 INFO L432 NwaCegarLoop]: 777 mSDtfsCounter, 17 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3102 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 [2024-10-12 22:38:02,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3102 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:02,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-10-12 22:38:02,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 632. [2024-10-12 22:38:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 627 states have (on average 1.3891547049441786) internal successors, (871), 627 states have internal predecessors, (871), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:02,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 877 transitions. [2024-10-12 22:38:02,830 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 877 transitions. Word has length 181 [2024-10-12 22:38:02,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:02,830 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 877 transitions. [2024-10-12 22:38:02,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:02,830 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 877 transitions. [2024-10-12 22:38:02,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-12 22:38:02,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:02,831 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:02,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-12 22:38:02,832 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:02,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:02,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1439121956, now seen corresponding path program 1 times [2024-10-12 22:38:02,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:02,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680819903] [2024-10-12 22:38:02,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:02,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:03,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:03,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 22:38:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:03,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 22:38:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:03,298 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:03,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:03,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680819903] [2024-10-12 22:38:03,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680819903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:03,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:03,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 22:38:03,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388387022] [2024-10-12 22:38:03,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:03,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 22:38:03,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:03,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 22:38:03,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 22:38:03,300 INFO L87 Difference]: Start difference. First operand 632 states and 877 transitions. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:04,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:04,045 INFO L93 Difference]: Finished difference Result 1694 states and 2332 transitions. [2024-10-12 22:38:04,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 22:38:04,046 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 182 [2024-10-12 22:38:04,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:04,049 INFO L225 Difference]: With dead ends: 1694 [2024-10-12 22:38:04,049 INFO L226 Difference]: Without dead ends: 1163 [2024-10-12 22:38:04,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-12 22:38:04,051 INFO L432 NwaCegarLoop]: 1133 mSDtfsCounter, 1311 mSDsluCounter, 4935 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 6068 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:04,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 6068 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 22:38:04,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2024-10-12 22:38:04,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1158. [2024-10-12 22:38:04,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1150 states have (on average 1.38) internal successors, (1587), 1150 states have internal predecessors, (1587), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-12 22:38:04,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1599 transitions. [2024-10-12 22:38:04,075 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1599 transitions. Word has length 182 [2024-10-12 22:38:04,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:04,075 INFO L471 AbstractCegarLoop]: Abstraction has 1158 states and 1599 transitions. [2024-10-12 22:38:04,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:04,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1599 transitions. [2024-10-12 22:38:04,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-12 22:38:04,077 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:04,077 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:04,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-12 22:38:04,078 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:04,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:04,078 INFO L85 PathProgramCache]: Analyzing trace with hash -530002967, now seen corresponding path program 1 times [2024-10-12 22:38:04,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:04,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380242380] [2024-10-12 22:38:04,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:04,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:04,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:04,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 22:38:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:04,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 22:38:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:04,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:04,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380242380] [2024-10-12 22:38:04,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380242380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:04,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:04,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 22:38:04,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675316586] [2024-10-12 22:38:04,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:04,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 22:38:04,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:04,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 22:38:04,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 22:38:04,440 INFO L87 Difference]: Start difference. First operand 1158 states and 1599 transitions. Second operand has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:04,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:04,892 INFO L93 Difference]: Finished difference Result 2223 states and 3059 transitions. [2024-10-12 22:38:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:38:04,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 183 [2024-10-12 22:38:04,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:04,895 INFO L225 Difference]: With dead ends: 2223 [2024-10-12 22:38:04,895 INFO L226 Difference]: Without dead ends: 1166 [2024-10-12 22:38:04,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-12 22:38:04,897 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 777 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:04,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 2325 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 22:38:04,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2024-10-12 22:38:04,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1162. [2024-10-12 22:38:04,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1154 states have (on average 1.376949740034662) internal successors, (1589), 1154 states have internal predecessors, (1589), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-12 22:38:04,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1601 transitions. [2024-10-12 22:38:04,915 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1601 transitions. Word has length 183 [2024-10-12 22:38:04,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:04,915 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1601 transitions. [2024-10-12 22:38:04,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1601 transitions. [2024-10-12 22:38:04,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-12 22:38:04,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:04,917 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:04,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-12 22:38:04,917 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:04,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:04,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1957572435, now seen corresponding path program 1 times [2024-10-12 22:38:04,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:04,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941969681] [2024-10-12 22:38:04,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:04,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:05,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:05,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 22:38:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:05,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 22:38:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:05,455 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:05,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:05,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941969681] [2024-10-12 22:38:05,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941969681] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:05,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:05,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 22:38:05,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697134611] [2024-10-12 22:38:05,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:05,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:38:05,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:05,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:38:05,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:05,459 INFO L87 Difference]: Start difference. First operand 1162 states and 1601 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:05,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:05,978 INFO L93 Difference]: Finished difference Result 1169 states and 1606 transitions. [2024-10-12 22:38:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:38:05,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 184 [2024-10-12 22:38:05,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:05,981 INFO L225 Difference]: With dead ends: 1169 [2024-10-12 22:38:05,982 INFO L226 Difference]: Without dead ends: 636 [2024-10-12 22:38:05,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-12 22:38:05,983 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 717 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:05,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 2319 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 22:38:05,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-10-12 22:38:05,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 635. [2024-10-12 22:38:05,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 630 states have (on average 1.3857142857142857) internal successors, (873), 630 states have internal predecessors, (873), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:05,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 879 transitions. [2024-10-12 22:38:05,996 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 879 transitions. Word has length 184 [2024-10-12 22:38:05,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:05,996 INFO L471 AbstractCegarLoop]: Abstraction has 635 states and 879 transitions. [2024-10-12 22:38:05,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:05,997 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 879 transitions. [2024-10-12 22:38:05,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-12 22:38:05,998 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:05,998 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:05,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-12 22:38:05,998 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:05,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:05,999 INFO L85 PathProgramCache]: Analyzing trace with hash -801775970, now seen corresponding path program 1 times [2024-10-12 22:38:05,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:05,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217154258] [2024-10-12 22:38:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:06,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:06,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:06,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 22:38:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:06,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 22:38:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:06,530 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:06,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:06,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217154258] [2024-10-12 22:38:06,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217154258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:06,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:06,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 22:38:06,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399790688] [2024-10-12 22:38:06,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:06,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 22:38:06,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:06,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 22:38:06,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 22:38:06,532 INFO L87 Difference]: Start difference. First operand 635 states and 879 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:07,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:07,325 INFO L93 Difference]: Finished difference Result 1703 states and 2338 transitions. [2024-10-12 22:38:07,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 22:38:07,325 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 184 [2024-10-12 22:38:07,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:07,329 INFO L225 Difference]: With dead ends: 1703 [2024-10-12 22:38:07,329 INFO L226 Difference]: Without dead ends: 1169 [2024-10-12 22:38:07,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-12 22:38:07,330 INFO L432 NwaCegarLoop]: 1207 mSDtfsCounter, 1310 mSDsluCounter, 5180 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 6387 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:07,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 6387 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 22:38:07,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2024-10-12 22:38:07,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1164. [2024-10-12 22:38:07,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 1156 states have (on average 1.3762975778546713) internal successors, (1591), 1156 states have internal predecessors, (1591), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-12 22:38:07,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1603 transitions. [2024-10-12 22:38:07,349 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1603 transitions. Word has length 184 [2024-10-12 22:38:07,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:07,350 INFO L471 AbstractCegarLoop]: Abstraction has 1164 states and 1603 transitions. [2024-10-12 22:38:07,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:07,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1603 transitions. [2024-10-12 22:38:07,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-12 22:38:07,352 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:07,352 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:07,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-12 22:38:07,352 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:07,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:07,352 INFO L85 PathProgramCache]: Analyzing trace with hash 2047853415, now seen corresponding path program 1 times [2024-10-12 22:38:07,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:07,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196050617] [2024-10-12 22:38:07,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:07,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:07,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:07,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 22:38:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:07,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 22:38:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:07,768 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:07,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:07,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196050617] [2024-10-12 22:38:07,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196050617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:07,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:07,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 22:38:07,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389295835] [2024-10-12 22:38:07,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:07,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:38:07,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:07,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:38:07,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:07,770 INFO L87 Difference]: Start difference. First operand 1164 states and 1603 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:08,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:08,218 INFO L93 Difference]: Finished difference Result 1171 states and 1608 transitions. [2024-10-12 22:38:08,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:38:08,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 185 [2024-10-12 22:38:08,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:08,221 INFO L225 Difference]: With dead ends: 1171 [2024-10-12 22:38:08,221 INFO L226 Difference]: Without dead ends: 637 [2024-10-12 22:38:08,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-12 22:38:08,222 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 708 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:08,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 2319 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 22:38:08,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-10-12 22:38:08,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 636. [2024-10-12 22:38:08,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 631 states have (on average 1.3851030110935023) internal successors, (874), 631 states have internal predecessors, (874), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 880 transitions. [2024-10-12 22:38:08,232 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 880 transitions. Word has length 185 [2024-10-12 22:38:08,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:08,232 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 880 transitions. [2024-10-12 22:38:08,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 880 transitions. [2024-10-12 22:38:08,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-12 22:38:08,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:08,234 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:08,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-12 22:38:08,234 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:08,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1680922803, now seen corresponding path program 1 times [2024-10-12 22:38:08,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:08,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545628505] [2024-10-12 22:38:08,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:08,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:09,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:09,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 22:38:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:09,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 22:38:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:09,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:09,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545628505] [2024-10-12 22:38:09,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545628505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:09,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:09,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 22:38:09,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742940403] [2024-10-12 22:38:09,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:09,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 22:38:09,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:09,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 22:38:09,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-12 22:38:09,204 INFO L87 Difference]: Start difference. First operand 636 states and 880 transitions. Second operand has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:10,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:10,375 INFO L93 Difference]: Finished difference Result 1624 states and 2222 transitions. [2024-10-12 22:38:10,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 22:38:10,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 185 [2024-10-12 22:38:10,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:10,378 INFO L225 Difference]: With dead ends: 1624 [2024-10-12 22:38:10,378 INFO L226 Difference]: Without dead ends: 1089 [2024-10-12 22:38:10,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-12 22:38:10,379 INFO L432 NwaCegarLoop]: 942 mSDtfsCounter, 1282 mSDsluCounter, 4299 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 5241 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:10,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 5241 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 22:38:10,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-10-12 22:38:10,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 662. [2024-10-12 22:38:10,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 656 states have (on average 1.3841463414634145) internal successors, (908), 656 states have internal predecessors, (908), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-12 22:38:10,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 916 transitions. [2024-10-12 22:38:10,389 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 916 transitions. Word has length 185 [2024-10-12 22:38:10,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:10,389 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 916 transitions. [2024-10-12 22:38:10,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:38:10,390 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 916 transitions. [2024-10-12 22:38:10,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-12 22:38:10,390 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:10,391 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:10,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-12 22:38:10,391 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:10,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:10,391 INFO L85 PathProgramCache]: Analyzing trace with hash -805892333, now seen corresponding path program 1 times [2024-10-12 22:38:10,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:10,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906672815] [2024-10-12 22:38:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:10,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:10,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 22:38:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:10,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 22:38:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:10,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 22:38:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:10,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:10,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906672815] [2024-10-12 22:38:10,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906672815] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:10,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:10,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 22:38:10,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107578277] [2024-10-12 22:38:10,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:10,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 22:38:10,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:10,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 22:38:10,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 22:38:10,745 INFO L87 Difference]: Start difference. First operand 662 states and 916 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:10,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:10,993 INFO L93 Difference]: Finished difference Result 1305 states and 1793 transitions. [2024-10-12 22:38:10,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 22:38:10,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 185 [2024-10-12 22:38:10,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:10,996 INFO L225 Difference]: With dead ends: 1305 [2024-10-12 22:38:10,996 INFO L226 Difference]: Without dead ends: 666 [2024-10-12 22:38:10,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-12 22:38:10,997 INFO L432 NwaCegarLoop]: 759 mSDtfsCounter, 868 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 3620 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:10,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 3620 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 22:38:10,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-10-12 22:38:11,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 664. [2024-10-12 22:38:11,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 658 states have (on average 1.3814589665653496) internal successors, (909), 658 states have internal predecessors, (909), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-12 22:38:11,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 917 transitions. [2024-10-12 22:38:11,006 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 917 transitions. Word has length 185 [2024-10-12 22:38:11,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:11,006 INFO L471 AbstractCegarLoop]: Abstraction has 664 states and 917 transitions. [2024-10-12 22:38:11,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:11,007 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 917 transitions. [2024-10-12 22:38:11,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-10-12 22:38:11,008 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:11,008 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:11,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-12 22:38:11,008 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:11,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:11,008 INFO L85 PathProgramCache]: Analyzing trace with hash -98646592, now seen corresponding path program 1 times [2024-10-12 22:38:11,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:11,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051224586] [2024-10-12 22:38:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:11,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:11,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-12 22:38:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:11,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 22:38:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:11,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 22:38:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:11,430 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:11,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:11,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051224586] [2024-10-12 22:38:11,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051224586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:11,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:11,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 22:38:11,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655505580] [2024-10-12 22:38:11,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:11,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 22:38:11,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:11,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 22:38:11,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 22:38:11,434 INFO L87 Difference]: Start difference. First operand 664 states and 917 transitions. Second operand has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:12,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:12,124 INFO L93 Difference]: Finished difference Result 1790 states and 2452 transitions. [2024-10-12 22:38:12,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 22:38:12,125 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 186 [2024-10-12 22:38:12,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:12,127 INFO L225 Difference]: With dead ends: 1790 [2024-10-12 22:38:12,128 INFO L226 Difference]: Without dead ends: 1227 [2024-10-12 22:38:12,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-12 22:38:12,129 INFO L432 NwaCegarLoop]: 603 mSDtfsCounter, 1866 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:12,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1869 Valid, 3542 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 22:38:12,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2024-10-12 22:38:12,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1222. [2024-10-12 22:38:12,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1212 states have (on average 1.3721122112211221) internal successors, (1663), 1212 states have internal predecessors, (1663), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-12 22:38:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1679 transitions. [2024-10-12 22:38:12,151 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1679 transitions. Word has length 186 [2024-10-12 22:38:12,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:12,151 INFO L471 AbstractCegarLoop]: Abstraction has 1222 states and 1679 transitions. [2024-10-12 22:38:12,151 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:12,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1679 transitions. [2024-10-12 22:38:12,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-12 22:38:12,152 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:12,153 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:12,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-12 22:38:12,153 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:12,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:12,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1924939643, now seen corresponding path program 1 times [2024-10-12 22:38:12,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:12,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082816797] [2024-10-12 22:38:12,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:12,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:13,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-12 22:38:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:13,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 22:38:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:13,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 22:38:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:13,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:13,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082816797] [2024-10-12 22:38:13,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082816797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:13,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:13,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-12 22:38:13,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221469862] [2024-10-12 22:38:13,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:13,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 22:38:13,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:13,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 22:38:13,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-12 22:38:13,409 INFO L87 Difference]: Start difference. First operand 1222 states and 1679 transitions. Second operand has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:13,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:13,785 INFO L93 Difference]: Finished difference Result 4417 states and 6025 transitions. [2024-10-12 22:38:13,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 22:38:13,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 187 [2024-10-12 22:38:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:13,795 INFO L225 Difference]: With dead ends: 4417 [2024-10-12 22:38:13,795 INFO L226 Difference]: Without dead ends: 3296 [2024-10-12 22:38:13,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-12 22:38:13,798 INFO L432 NwaCegarLoop]: 1248 mSDtfsCounter, 3035 mSDsluCounter, 6646 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3040 SdHoareTripleChecker+Valid, 7894 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:13,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3040 Valid, 7894 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 22:38:13,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2024-10-12 22:38:13,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 1380. [2024-10-12 22:38:13,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1362 states have (on average 1.366372980910426) internal successors, (1861), 1362 states have internal predecessors, (1861), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-12 22:38:13,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1893 transitions. [2024-10-12 22:38:13,834 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1893 transitions. Word has length 187 [2024-10-12 22:38:13,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:13,835 INFO L471 AbstractCegarLoop]: Abstraction has 1380 states and 1893 transitions. [2024-10-12 22:38:13,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:38:13,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1893 transitions. [2024-10-12 22:38:13,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-12 22:38:13,836 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:13,836 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:13,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-12 22:38:13,837 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:13,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:13,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1203896795, now seen corresponding path program 1 times [2024-10-12 22:38:13,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:13,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141053328] [2024-10-12 22:38:13,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:13,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:14,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-12 22:38:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:14,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 22:38:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:14,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 22:38:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:14,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:14,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141053328] [2024-10-12 22:38:14,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141053328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:14,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:14,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 22:38:14,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140716690] [2024-10-12 22:38:14,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:14,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:38:14,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:14,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:38:14,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:14,215 INFO L87 Difference]: Start difference. First operand 1380 states and 1893 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:14,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:14,644 INFO L93 Difference]: Finished difference Result 1388 states and 1899 transitions. [2024-10-12 22:38:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:38:14,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 187 [2024-10-12 22:38:14,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:14,646 INFO L225 Difference]: With dead ends: 1388 [2024-10-12 22:38:14,646 INFO L226 Difference]: Without dead ends: 764 [2024-10-12 22:38:14,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-12 22:38:14,647 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 727 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:14,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 2315 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 22:38:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-10-12 22:38:14,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 762. [2024-10-12 22:38:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 752 states have (on average 1.375) internal successors, (1034), 752 states have internal predecessors, (1034), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-12 22:38:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1050 transitions. [2024-10-12 22:38:14,659 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1050 transitions. Word has length 187 [2024-10-12 22:38:14,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:14,660 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 1050 transitions. [2024-10-12 22:38:14,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1050 transitions. [2024-10-12 22:38:14,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-12 22:38:14,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:14,661 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:14,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-12 22:38:14,661 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:14,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:14,662 INFO L85 PathProgramCache]: Analyzing trace with hash 337789718, now seen corresponding path program 1 times [2024-10-12 22:38:14,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:14,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746145880] [2024-10-12 22:38:14,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:14,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:15,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:15,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:15,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:38:15,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:15,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746145880] [2024-10-12 22:38:15,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746145880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:15,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:15,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 22:38:15,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32869789] [2024-10-12 22:38:15,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:15,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:38:15,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:15,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:38:15,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:15,411 INFO L87 Difference]: Start difference. First operand 762 states and 1050 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:15,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:15,505 INFO L93 Difference]: Finished difference Result 1591 states and 2143 transitions. [2024-10-12 22:38:15,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:38:15,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 187 [2024-10-12 22:38:15,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:15,508 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:15,508 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:15,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-12 22:38:15,509 INFO L432 NwaCegarLoop]: 769 mSDtfsCounter, 1110 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:15,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 3072 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:15,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:15,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3336623889437316) internal successors, (1351), 1013 states have internal predecessors, (1351), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1375 transitions. [2024-10-12 22:38:15,527 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1375 transitions. Word has length 187 [2024-10-12 22:38:15,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:15,527 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1375 transitions. [2024-10-12 22:38:15,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:38:15,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1375 transitions. [2024-10-12 22:38:15,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-10-12 22:38:15,530 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:15,530 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:15,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-10-12 22:38:15,530 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:15,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:15,531 INFO L85 PathProgramCache]: Analyzing trace with hash 361130889, now seen corresponding path program 1 times [2024-10-12 22:38:15,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:15,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198714036] [2024-10-12 22:38:15,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:15,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:16,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:16,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:16,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:16,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-10-12 22:38:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:16,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-12 22:38:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:16,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-10-12 22:38:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:16,107 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:16,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:16,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198714036] [2024-10-12 22:38:16,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198714036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:16,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:16,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:16,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314388750] [2024-10-12 22:38:16,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:16,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:16,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:16,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:16,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:16,108 INFO L87 Difference]: Start difference. First operand 1027 states and 1375 transitions. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:16,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:16,219 INFO L93 Difference]: Finished difference Result 1591 states and 2142 transitions. [2024-10-12 22:38:16,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:16,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 461 [2024-10-12 22:38:16,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:16,222 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:16,222 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:16,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:16,223 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 718 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:16,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 1436 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:16,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:16,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:16,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.332675222112537) internal successors, (1350), 1013 states have internal predecessors, (1350), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1374 transitions. [2024-10-12 22:38:16,242 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1374 transitions. Word has length 461 [2024-10-12 22:38:16,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:16,243 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1374 transitions. [2024-10-12 22:38:16,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1374 transitions. [2024-10-12 22:38:16,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-10-12 22:38:16,245 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:16,246 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:16,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-10-12 22:38:16,246 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:16,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:16,246 INFO L85 PathProgramCache]: Analyzing trace with hash -114559129, now seen corresponding path program 1 times [2024-10-12 22:38:16,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:16,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415159554] [2024-10-12 22:38:16,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:16,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-10-12 22:38:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-10-12 22:38:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-10-12 22:38:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:17,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:17,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415159554] [2024-10-12 22:38:17,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415159554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:17,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:17,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:17,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798557509] [2024-10-12 22:38:17,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:17,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:17,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:17,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:17,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:17,073 INFO L87 Difference]: Start difference. First operand 1027 states and 1374 transitions. Second operand has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:17,256 INFO L93 Difference]: Finished difference Result 1591 states and 2140 transitions. [2024-10-12 22:38:17,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:17,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 462 [2024-10-12 22:38:17,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:17,259 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:17,259 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:17,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:17,265 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 1291 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:17,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1430 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 22:38:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:17,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:17,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3316880552813426) internal successors, (1349), 1013 states have internal predecessors, (1349), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1373 transitions. [2024-10-12 22:38:17,303 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1373 transitions. Word has length 462 [2024-10-12 22:38:17,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:17,304 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1373 transitions. [2024-10-12 22:38:17,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:17,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1373 transitions. [2024-10-12 22:38:17,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-10-12 22:38:17,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:17,306 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:17,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-10-12 22:38:17,306 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:17,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:17,307 INFO L85 PathProgramCache]: Analyzing trace with hash 220501492, now seen corresponding path program 1 times [2024-10-12 22:38:17,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:17,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895336024] [2024-10-12 22:38:17,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:17,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-10-12 22:38:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-10-12 22:38:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-10-12 22:38:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:17,886 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:17,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:17,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895336024] [2024-10-12 22:38:17,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895336024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:17,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:17,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:17,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656660077] [2024-10-12 22:38:17,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:17,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:17,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:17,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:17,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:17,890 INFO L87 Difference]: Start difference. First operand 1027 states and 1373 transitions. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:17,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:17,997 INFO L93 Difference]: Finished difference Result 1591 states and 2138 transitions. [2024-10-12 22:38:17,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:17,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 463 [2024-10-12 22:38:17,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:18,000 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:18,000 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:18,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:18,001 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 702 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:18,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 1436 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:18,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:18,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3307008884501481) internal successors, (1348), 1013 states have internal predecessors, (1348), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:18,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1372 transitions. [2024-10-12 22:38:18,019 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1372 transitions. Word has length 463 [2024-10-12 22:38:18,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:18,020 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1372 transitions. [2024-10-12 22:38:18,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:18,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1372 transitions. [2024-10-12 22:38:18,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-10-12 22:38:18,022 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:18,022 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:18,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-10-12 22:38:18,023 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:18,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:18,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1689021454, now seen corresponding path program 1 times [2024-10-12 22:38:18,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:18,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476649012] [2024-10-12 22:38:18,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:18,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:18,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:18,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:18,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:18,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-10-12 22:38:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:18,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-10-12 22:38:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:18,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-10-12 22:38:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:18,752 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:18,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:18,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476649012] [2024-10-12 22:38:18,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476649012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:18,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:18,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:18,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877639050] [2024-10-12 22:38:18,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:18,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:18,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:18,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:18,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:18,755 INFO L87 Difference]: Start difference. First operand 1027 states and 1372 transitions. Second operand has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:18,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:18,871 INFO L93 Difference]: Finished difference Result 1591 states and 2136 transitions. [2024-10-12 22:38:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:18,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 464 [2024-10-12 22:38:18,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:18,874 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:18,874 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:18,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:18,875 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 694 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:18,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1436 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:18,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:18,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:18,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3297137216189536) internal successors, (1347), 1013 states have internal predecessors, (1347), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:18,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1371 transitions. [2024-10-12 22:38:18,896 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1371 transitions. Word has length 464 [2024-10-12 22:38:18,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:18,897 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1371 transitions. [2024-10-12 22:38:18,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:18,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1371 transitions. [2024-10-12 22:38:18,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-10-12 22:38:18,901 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:18,902 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:18,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-10-12 22:38:18,902 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:18,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:18,902 INFO L85 PathProgramCache]: Analyzing trace with hash 400125151, now seen corresponding path program 1 times [2024-10-12 22:38:18,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:18,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973851584] [2024-10-12 22:38:18,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:18,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:19,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:19,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:19,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:19,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-10-12 22:38:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:19,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-10-12 22:38:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:19,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-10-12 22:38:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:19,634 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:19,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:19,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973851584] [2024-10-12 22:38:19,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973851584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:19,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:19,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:19,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660030258] [2024-10-12 22:38:19,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:19,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:19,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:19,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:19,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:19,638 INFO L87 Difference]: Start difference. First operand 1027 states and 1371 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:19,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:19,770 INFO L93 Difference]: Finished difference Result 1591 states and 2134 transitions. [2024-10-12 22:38:19,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:19,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 465 [2024-10-12 22:38:19,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:19,773 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:19,773 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:19,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:19,774 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 1243 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:19,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1430 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:19,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:19,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:19,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3287265547877591) internal successors, (1346), 1013 states have internal predecessors, (1346), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:19,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1370 transitions. [2024-10-12 22:38:19,838 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1370 transitions. Word has length 465 [2024-10-12 22:38:19,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:19,838 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1370 transitions. [2024-10-12 22:38:19,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:19,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1370 transitions. [2024-10-12 22:38:19,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-10-12 22:38:19,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:19,843 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:19,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-10-12 22:38:19,843 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:19,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:19,843 INFO L85 PathProgramCache]: Analyzing trace with hash 530793725, now seen corresponding path program 1 times [2024-10-12 22:38:19,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:19,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180869232] [2024-10-12 22:38:19,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:19,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:20,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:20,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:20,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:20,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-10-12 22:38:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:20,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-10-12 22:38:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:20,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-10-12 22:38:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:20,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:20,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180869232] [2024-10-12 22:38:20,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180869232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:20,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:20,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:20,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002558821] [2024-10-12 22:38:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:20,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:20,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:20,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:20,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:20,460 INFO L87 Difference]: Start difference. First operand 1027 states and 1370 transitions. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:20,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:20,569 INFO L93 Difference]: Finished difference Result 1591 states and 2132 transitions. [2024-10-12 22:38:20,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:20,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 466 [2024-10-12 22:38:20,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:20,571 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:20,571 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:20,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:20,572 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 678 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1436 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 [2024-10-12 22:38:20,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1436 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:20,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:20,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:20,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3277393879565647) internal successors, (1345), 1013 states have internal predecessors, (1345), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1369 transitions. [2024-10-12 22:38:20,588 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1369 transitions. Word has length 466 [2024-10-12 22:38:20,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:20,589 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1369 transitions. [2024-10-12 22:38:20,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:20,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1369 transitions. [2024-10-12 22:38:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-10-12 22:38:20,591 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:20,591 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:20,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-10-12 22:38:20,591 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:20,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:20,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1496666038, now seen corresponding path program 1 times [2024-10-12 22:38:20,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:20,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70422997] [2024-10-12 22:38:20,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:20,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:21,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:21,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:21,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:21,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-10-12 22:38:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:21,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-10-12 22:38:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:21,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-10-12 22:38:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:21,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:21,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70422997] [2024-10-12 22:38:21,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70422997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:21,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:21,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:21,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737793143] [2024-10-12 22:38:21,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:21,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:21,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:21,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:21,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:21,285 INFO L87 Difference]: Start difference. First operand 1027 states and 1369 transitions. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:21,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:21,410 INFO L93 Difference]: Finished difference Result 1591 states and 2130 transitions. [2024-10-12 22:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:21,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 467 [2024-10-12 22:38:21,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:21,412 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:21,412 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:21,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:21,413 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 1211 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:21,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 1430 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:21,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:21,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:21,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3267522211253702) internal successors, (1344), 1013 states have internal predecessors, (1344), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:21,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1368 transitions. [2024-10-12 22:38:21,439 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1368 transitions. Word has length 467 [2024-10-12 22:38:21,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:21,439 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1368 transitions. [2024-10-12 22:38:21,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:21,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1368 transitions. [2024-10-12 22:38:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-10-12 22:38:21,443 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:21,444 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:21,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-10-12 22:38:21,444 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:21,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:21,445 INFO L85 PathProgramCache]: Analyzing trace with hash 825150088, now seen corresponding path program 1 times [2024-10-12 22:38:21,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:21,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849425225] [2024-10-12 22:38:21,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:21,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-10-12 22:38:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-10-12 22:38:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-10-12 22:38:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,189 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:22,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:22,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849425225] [2024-10-12 22:38:22,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849425225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:22,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:22,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:22,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28825816] [2024-10-12 22:38:22,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:22,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:22,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:22,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:22,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:22,191 INFO L87 Difference]: Start difference. First operand 1027 states and 1368 transitions. Second operand has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:22,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:22,290 INFO L93 Difference]: Finished difference Result 1591 states and 2128 transitions. [2024-10-12 22:38:22,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:22,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 468 [2024-10-12 22:38:22,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:22,292 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:22,292 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:22,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:22,293 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 662 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:22,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1436 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:22,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:22,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:22,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3257650542941757) internal successors, (1343), 1013 states have internal predecessors, (1343), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:22,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1367 transitions. [2024-10-12 22:38:22,309 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1367 transitions. Word has length 468 [2024-10-12 22:38:22,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:22,309 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1367 transitions. [2024-10-12 22:38:22,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:22,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1367 transitions. [2024-10-12 22:38:22,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-10-12 22:38:22,311 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:22,312 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:22,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-10-12 22:38:22,312 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:22,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:22,312 INFO L85 PathProgramCache]: Analyzing trace with hash -2013388747, now seen corresponding path program 1 times [2024-10-12 22:38:22,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:22,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426141567] [2024-10-12 22:38:22,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:22,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-12 22:38:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-10-12 22:38:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-10-12 22:38:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:22,901 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:22,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:22,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426141567] [2024-10-12 22:38:22,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426141567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:22,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:22,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:22,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565788267] [2024-10-12 22:38:22,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:22,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:22,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:22,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:22,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:22,904 INFO L87 Difference]: Start difference. First operand 1027 states and 1367 transitions. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:22,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:22,974 INFO L93 Difference]: Finished difference Result 1591 states and 2126 transitions. [2024-10-12 22:38:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:22,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 469 [2024-10-12 22:38:22,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:22,976 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:22,976 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:22,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:22,977 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 639 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:22,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1484 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:22,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:22,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:22,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3247778874629812) internal successors, (1342), 1013 states have internal predecessors, (1342), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:22,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1366 transitions. [2024-10-12 22:38:22,993 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1366 transitions. Word has length 469 [2024-10-12 22:38:22,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:22,993 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1366 transitions. [2024-10-12 22:38:22,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:22,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1366 transitions. [2024-10-12 22:38:22,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-10-12 22:38:22,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:22,995 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:22,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-10-12 22:38:22,996 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:22,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:22,996 INFO L85 PathProgramCache]: Analyzing trace with hash -798366573, now seen corresponding path program 1 times [2024-10-12 22:38:22,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:22,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417910179] [2024-10-12 22:38:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:22,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:23,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:23,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:23,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:23,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-10-12 22:38:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:23,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-10-12 22:38:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:23,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-10-12 22:38:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:23,657 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:23,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:23,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417910179] [2024-10-12 22:38:23,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417910179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:23,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:23,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:23,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46335557] [2024-10-12 22:38:23,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:23,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:23,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:23,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:23,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:23,659 INFO L87 Difference]: Start difference. First operand 1027 states and 1366 transitions. Second operand has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:23,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:23,731 INFO L93 Difference]: Finished difference Result 1591 states and 2124 transitions. [2024-10-12 22:38:23,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:23,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 470 [2024-10-12 22:38:23,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:23,734 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:23,734 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:23,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:23,735 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 631 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:23,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1484 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:23,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:23,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:23,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3237907206317867) internal successors, (1341), 1013 states have internal predecessors, (1341), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1365 transitions. [2024-10-12 22:38:23,751 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1365 transitions. Word has length 470 [2024-10-12 22:38:23,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:23,751 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1365 transitions. [2024-10-12 22:38:23,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:23,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1365 transitions. [2024-10-12 22:38:23,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-10-12 22:38:23,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:23,754 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:23,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-10-12 22:38:23,754 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:23,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:23,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1504084832, now seen corresponding path program 1 times [2024-10-12 22:38:23,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:23,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576261249] [2024-10-12 22:38:23,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:23,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:24,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:24,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:24,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:24,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-10-12 22:38:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:24,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-10-12 22:38:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:24,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-12 22:38:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:24,389 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:24,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:24,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576261249] [2024-10-12 22:38:24,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576261249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:24,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:24,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:24,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738185950] [2024-10-12 22:38:24,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:24,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:24,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:24,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:24,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:24,391 INFO L87 Difference]: Start difference. First operand 1027 states and 1365 transitions. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:24,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:24,463 INFO L93 Difference]: Finished difference Result 1591 states and 2122 transitions. [2024-10-12 22:38:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:24,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 471 [2024-10-12 22:38:24,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:24,465 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:24,465 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:24,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:24,466 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 623 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:24,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 1484 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:24,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:24,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:24,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3228035538005922) internal successors, (1340), 1013 states have internal predecessors, (1340), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:24,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1364 transitions. [2024-10-12 22:38:24,482 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1364 transitions. Word has length 471 [2024-10-12 22:38:24,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:24,483 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1364 transitions. [2024-10-12 22:38:24,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:24,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1364 transitions. [2024-10-12 22:38:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-10-12 22:38:24,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:24,485 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:24,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-10-12 22:38:24,486 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:24,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash -215461090, now seen corresponding path program 1 times [2024-10-12 22:38:24,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:24,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373970902] [2024-10-12 22:38:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:24,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-10-12 22:38:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-10-12 22:38:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-10-12 22:38:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,177 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:25,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:25,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373970902] [2024-10-12 22:38:25,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373970902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:25,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:25,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:25,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519364801] [2024-10-12 22:38:25,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:25,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:25,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:25,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:25,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:25,180 INFO L87 Difference]: Start difference. First operand 1027 states and 1364 transitions. Second operand has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:25,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:25,251 INFO L93 Difference]: Finished difference Result 1591 states and 2120 transitions. [2024-10-12 22:38:25,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:25,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 472 [2024-10-12 22:38:25,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:25,254 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:25,254 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:25,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:25,254 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 615 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:25,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1484 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:25,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:25,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:25,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3218163869693977) internal successors, (1339), 1013 states have internal predecessors, (1339), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:25,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1363 transitions. [2024-10-12 22:38:25,271 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1363 transitions. Word has length 472 [2024-10-12 22:38:25,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:25,271 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1363 transitions. [2024-10-12 22:38:25,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:25,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1363 transitions. [2024-10-12 22:38:25,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-10-12 22:38:25,273 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:25,274 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:25,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-10-12 22:38:25,274 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:25,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:25,274 INFO L85 PathProgramCache]: Analyzing trace with hash -912095861, now seen corresponding path program 1 times [2024-10-12 22:38:25,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:25,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323011054] [2024-10-12 22:38:25,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:25,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-10-12 22:38:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-12 22:38:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:25,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-10-12 22:38:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:26,000 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:26,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:26,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323011054] [2024-10-12 22:38:26,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323011054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:26,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:26,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:26,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582899917] [2024-10-12 22:38:26,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:26,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:26,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:26,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:26,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:26,002 INFO L87 Difference]: Start difference. First operand 1027 states and 1363 transitions. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:26,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:26,051 INFO L93 Difference]: Finished difference Result 1591 states and 2118 transitions. [2024-10-12 22:38:26,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:26,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 473 [2024-10-12 22:38:26,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:26,054 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:26,054 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:26,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:26,055 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 600 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:26,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1512 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:26,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:26,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:26,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3208292201382033) internal successors, (1338), 1013 states have internal predecessors, (1338), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:26,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1362 transitions. [2024-10-12 22:38:26,070 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1362 transitions. Word has length 473 [2024-10-12 22:38:26,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:26,071 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1362 transitions. [2024-10-12 22:38:26,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:26,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1362 transitions. [2024-10-12 22:38:26,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-10-12 22:38:26,073 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:26,073 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:26,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-10-12 22:38:26,074 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:26,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:26,074 INFO L85 PathProgramCache]: Analyzing trace with hash 614323753, now seen corresponding path program 1 times [2024-10-12 22:38:26,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:26,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612880187] [2024-10-12 22:38:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:26,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:26,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:26,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:26,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:26,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-10-12 22:38:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:26,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-10-12 22:38:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:26,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-10-12 22:38:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:26,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:26,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612880187] [2024-10-12 22:38:26,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612880187] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:26,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:26,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:26,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115759631] [2024-10-12 22:38:26,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:26,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:26,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:26,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:26,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:26,826 INFO L87 Difference]: Start difference. First operand 1027 states and 1362 transitions. Second operand has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:26,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:26,866 INFO L93 Difference]: Finished difference Result 1591 states and 2116 transitions. [2024-10-12 22:38:26,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:26,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 474 [2024-10-12 22:38:26,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:26,869 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:26,869 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:26,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:26,870 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 592 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:26,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 1512 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:26,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:26,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.319842053307009) internal successors, (1337), 1013 states have internal predecessors, (1337), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1361 transitions. [2024-10-12 22:38:26,893 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1361 transitions. Word has length 474 [2024-10-12 22:38:26,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:26,893 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1361 transitions. [2024-10-12 22:38:26,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:26,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1361 transitions. [2024-10-12 22:38:26,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-10-12 22:38:26,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:26,896 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:26,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-10-12 22:38:26,896 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:26,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:26,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1451162358, now seen corresponding path program 1 times [2024-10-12 22:38:26,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:26,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158642260] [2024-10-12 22:38:26,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:26,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:27,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:27,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:27,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:27,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-10-12 22:38:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:27,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-10-12 22:38:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:27,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-10-12 22:38:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:27,574 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:27,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:27,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158642260] [2024-10-12 22:38:27,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158642260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:27,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:27,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:27,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354240037] [2024-10-12 22:38:27,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:27,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:27,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:27,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:27,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:27,576 INFO L87 Difference]: Start difference. First operand 1027 states and 1361 transitions. Second operand has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:27,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:27,816 INFO L93 Difference]: Finished difference Result 1591 states and 2114 transitions. [2024-10-12 22:38:27,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:27,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 475 [2024-10-12 22:38:27,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:27,819 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:27,819 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:27,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:27,820 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 1011 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:27,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 1144 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 22:38:27,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:27,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:27,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3188548864758145) internal successors, (1336), 1013 states have internal predecessors, (1336), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:27,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1360 transitions. [2024-10-12 22:38:27,836 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1360 transitions. Word has length 475 [2024-10-12 22:38:27,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:27,836 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1360 transitions. [2024-10-12 22:38:27,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:27,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1360 transitions. [2024-10-12 22:38:27,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-10-12 22:38:27,839 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:27,839 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:27,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-10-12 22:38:27,839 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:27,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:27,840 INFO L85 PathProgramCache]: Analyzing trace with hash 626929076, now seen corresponding path program 1 times [2024-10-12 22:38:27,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:27,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757717043] [2024-10-12 22:38:27,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:27,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:29,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:29,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:29,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:29,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-10-12 22:38:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:29,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-10-12 22:38:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:29,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-10-12 22:38:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:29,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:29,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757717043] [2024-10-12 22:38:29,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757717043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:29,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:29,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:38:29,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548310078] [2024-10-12 22:38:29,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:29,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:38:29,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:29,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:38:29,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:38:29,313 INFO L87 Difference]: Start difference. First operand 1027 states and 1360 transitions. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:29,362 INFO L93 Difference]: Finished difference Result 1591 states and 2112 transitions. [2024-10-12 22:38:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:29,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 476 [2024-10-12 22:38:29,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:29,364 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:29,364 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:29,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:29,365 INFO L432 NwaCegarLoop]: 751 mSDtfsCounter, 484 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:29,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1504 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:29,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:29,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:29,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.31786771964462) internal successors, (1335), 1013 states have internal predecessors, (1335), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:29,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1359 transitions. [2024-10-12 22:38:29,380 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1359 transitions. Word has length 476 [2024-10-12 22:38:29,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:29,381 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1359 transitions. [2024-10-12 22:38:29,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:29,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1359 transitions. [2024-10-12 22:38:29,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-10-12 22:38:29,383 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:29,383 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:29,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-10-12 22:38:29,383 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:29,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:29,384 INFO L85 PathProgramCache]: Analyzing trace with hash -489537980, now seen corresponding path program 1 times [2024-10-12 22:38:29,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:29,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115445300] [2024-10-12 22:38:29,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:29,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:30,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:30,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:30,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:30,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-10-12 22:38:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:30,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-10-12 22:38:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:30,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-10-12 22:38:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:30,498 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:30,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:30,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115445300] [2024-10-12 22:38:30,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115445300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:30,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:30,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:30,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144728228] [2024-10-12 22:38:30,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:30,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:30,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:30,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:30,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:30,501 INFO L87 Difference]: Start difference. First operand 1027 states and 1359 transitions. Second operand has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:30,581 INFO L93 Difference]: Finished difference Result 1591 states and 2110 transitions. [2024-10-12 22:38:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:30,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 477 [2024-10-12 22:38:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:30,583 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:30,584 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:30,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:30,585 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 1154 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:30,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 1470 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:30,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3168805528134255) internal successors, (1334), 1013 states have internal predecessors, (1334), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:30,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1358 transitions. [2024-10-12 22:38:30,601 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1358 transitions. Word has length 477 [2024-10-12 22:38:30,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:30,601 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1358 transitions. [2024-10-12 22:38:30,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:30,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1358 transitions. [2024-10-12 22:38:30,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-10-12 22:38:30,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:30,604 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:30,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-10-12 22:38:30,604 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:30,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:30,604 INFO L85 PathProgramCache]: Analyzing trace with hash -195041932, now seen corresponding path program 1 times [2024-10-12 22:38:30,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:30,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547264389] [2024-10-12 22:38:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:30,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:31,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:31,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:31,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:31,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-10-12 22:38:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:31,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-10-12 22:38:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:31,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-10-12 22:38:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:31,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:31,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547264389] [2024-10-12 22:38:31,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547264389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:31,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:31,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:31,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101122955] [2024-10-12 22:38:31,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:31,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:31,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:31,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:31,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:31,629 INFO L87 Difference]: Start difference. First operand 1027 states and 1358 transitions. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:31,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:31,705 INFO L93 Difference]: Finished difference Result 1591 states and 2108 transitions. [2024-10-12 22:38:31,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:31,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 478 [2024-10-12 22:38:31,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:31,707 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:31,707 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:31,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:31,708 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 1144 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:31,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 1470 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:31,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:31,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:31,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.315893385982231) internal successors, (1333), 1013 states have internal predecessors, (1333), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:31,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1357 transitions. [2024-10-12 22:38:31,726 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1357 transitions. Word has length 478 [2024-10-12 22:38:31,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:31,726 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1357 transitions. [2024-10-12 22:38:31,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:31,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1357 transitions. [2024-10-12 22:38:31,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-10-12 22:38:31,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:31,729 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:31,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-10-12 22:38:31,729 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:31,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:31,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1001157589, now seen corresponding path program 1 times [2024-10-12 22:38:31,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:31,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943380435] [2024-10-12 22:38:31,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:31,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:32,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:32,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:32,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:32,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-12 22:38:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:32,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-10-12 22:38:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:32,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2024-10-12 22:38:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:32,809 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:32,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:32,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943380435] [2024-10-12 22:38:32,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943380435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:32,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:32,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:38:32,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485762145] [2024-10-12 22:38:32,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:32,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:38:32,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:32,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:38:32,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:38:32,812 INFO L87 Difference]: Start difference. First operand 1027 states and 1357 transitions. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:32,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:32,876 INFO L93 Difference]: Finished difference Result 1591 states and 2106 transitions. [2024-10-12 22:38:32,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:32,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 479 [2024-10-12 22:38:32,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:32,878 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:32,878 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:32,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:32,879 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 493 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:32,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1470 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:32,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:32,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3149062191510366) internal successors, (1332), 1013 states have internal predecessors, (1332), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:32,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1356 transitions. [2024-10-12 22:38:32,895 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1356 transitions. Word has length 479 [2024-10-12 22:38:32,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:32,895 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1356 transitions. [2024-10-12 22:38:32,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:32,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1356 transitions. [2024-10-12 22:38:32,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-10-12 22:38:32,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:32,897 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:32,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-10-12 22:38:32,898 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:32,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:32,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1785549603, now seen corresponding path program 1 times [2024-10-12 22:38:32,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:32,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780579897] [2024-10-12 22:38:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:32,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:33,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:33,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:33,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:33,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-10-12 22:38:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:33,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-10-12 22:38:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:33,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-10-12 22:38:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:33,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:33,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780579897] [2024-10-12 22:38:33,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780579897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:33,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:33,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:33,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900309418] [2024-10-12 22:38:33,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:33,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:33,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:33,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:33,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:33,951 INFO L87 Difference]: Start difference. First operand 1027 states and 1356 transitions. Second operand has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:34,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:34,068 INFO L93 Difference]: Finished difference Result 1591 states and 2104 transitions. [2024-10-12 22:38:34,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:34,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 480 [2024-10-12 22:38:34,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:34,070 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:34,070 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:34,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:34,071 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 1189 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:34,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 1408 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:34,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:34,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.313919052319842) internal successors, (1331), 1013 states have internal predecessors, (1331), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:34,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1355 transitions. [2024-10-12 22:38:34,088 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1355 transitions. Word has length 480 [2024-10-12 22:38:34,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:34,088 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1355 transitions. [2024-10-12 22:38:34,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:34,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1355 transitions. [2024-10-12 22:38:34,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-10-12 22:38:34,090 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:34,091 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:34,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-10-12 22:38:34,091 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:34,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:34,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1547074957, now seen corresponding path program 1 times [2024-10-12 22:38:34,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:34,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749312649] [2024-10-12 22:38:34,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:34,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:35,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:35,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:35,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:35,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-10-12 22:38:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:35,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-10-12 22:38:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:35,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-10-12 22:38:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:35,157 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:35,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:35,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749312649] [2024-10-12 22:38:35,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749312649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:35,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:35,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:35,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327804586] [2024-10-12 22:38:35,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:35,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:35,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:35,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:35,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:35,159 INFO L87 Difference]: Start difference. First operand 1027 states and 1355 transitions. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:35,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:35,275 INFO L93 Difference]: Finished difference Result 1591 states and 2102 transitions. [2024-10-12 22:38:35,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:35,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 481 [2024-10-12 22:38:35,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:35,277 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:35,277 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:35,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:35,278 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 625 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:35,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 1414 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:35,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:35,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3129318854886476) internal successors, (1330), 1013 states have internal predecessors, (1330), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1354 transitions. [2024-10-12 22:38:35,294 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1354 transitions. Word has length 481 [2024-10-12 22:38:35,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:35,295 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1354 transitions. [2024-10-12 22:38:35,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:35,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1354 transitions. [2024-10-12 22:38:35,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-10-12 22:38:35,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:35,297 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:35,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-10-12 22:38:35,297 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:35,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:35,298 INFO L85 PathProgramCache]: Analyzing trace with hash 127319794, now seen corresponding path program 1 times [2024-10-12 22:38:35,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:35,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473289519] [2024-10-12 22:38:35,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:35,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:36,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:36,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:36,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:36,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-10-12 22:38:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:36,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-10-12 22:38:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:36,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-10-12 22:38:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:36,384 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:36,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:36,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473289519] [2024-10-12 22:38:36,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473289519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:36,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:36,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:38:36,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026938726] [2024-10-12 22:38:36,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:36,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:38:36,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:36,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:38:36,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:38:36,386 INFO L87 Difference]: Start difference. First operand 1027 states and 1354 transitions. Second operand has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:36,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:36,478 INFO L93 Difference]: Finished difference Result 1591 states and 2100 transitions. [2024-10-12 22:38:36,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:36,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 482 [2024-10-12 22:38:36,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:36,479 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:36,479 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:36,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:36,480 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 546 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1408 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 [2024-10-12 22:38:36,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1408 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:36,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:36,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:36,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.311944718657453) internal successors, (1329), 1013 states have internal predecessors, (1329), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:36,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1353 transitions. [2024-10-12 22:38:36,495 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1353 transitions. Word has length 482 [2024-10-12 22:38:36,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:36,495 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1353 transitions. [2024-10-12 22:38:36,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:36,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1353 transitions. [2024-10-12 22:38:36,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-10-12 22:38:36,498 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:36,498 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:36,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-10-12 22:38:36,498 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:36,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:36,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2028246172, now seen corresponding path program 1 times [2024-10-12 22:38:36,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:36,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090838941] [2024-10-12 22:38:36,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:36,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:37,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:37,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:37,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:37,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-10-12 22:38:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:37,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-10-12 22:38:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:37,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-10-12 22:38:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:37,775 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:37,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:37,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090838941] [2024-10-12 22:38:37,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090838941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:37,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:37,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:37,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415441413] [2024-10-12 22:38:37,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:37,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:37,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:37,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:37,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:37,778 INFO L87 Difference]: Start difference. First operand 1027 states and 1353 transitions. Second operand has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:37,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:37,909 INFO L93 Difference]: Finished difference Result 1591 states and 2098 transitions. [2024-10-12 22:38:37,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:37,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 483 [2024-10-12 22:38:37,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:37,911 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:37,911 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:37,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:37,912 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 623 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:37,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1414 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:37,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:37,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:37,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3109575518262586) internal successors, (1328), 1013 states have internal predecessors, (1328), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:37,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1352 transitions. [2024-10-12 22:38:37,936 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1352 transitions. Word has length 483 [2024-10-12 22:38:37,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:37,936 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1352 transitions. [2024-10-12 22:38:37,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:37,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1352 transitions. [2024-10-12 22:38:37,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-10-12 22:38:37,938 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:37,938 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:37,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-10-12 22:38:37,939 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:37,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:37,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1701669567, now seen corresponding path program 1 times [2024-10-12 22:38:37,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:37,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412121253] [2024-10-12 22:38:37,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:37,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:38,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:38,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:38,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:38,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-10-12 22:38:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:38,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-10-12 22:38:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:38,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-10-12 22:38:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:38,940 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:38,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:38,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412121253] [2024-10-12 22:38:38,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412121253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:38,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:38,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:38,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910570122] [2024-10-12 22:38:38,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:38,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:38,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:38,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:38,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:38,942 INFO L87 Difference]: Start difference. First operand 1027 states and 1352 transitions. Second operand has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:39,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:39,051 INFO L93 Difference]: Finished difference Result 1591 states and 2096 transitions. [2024-10-12 22:38:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:39,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 484 [2024-10-12 22:38:39,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:39,053 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:39,053 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:39,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:39,054 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 1149 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:39,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 1408 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:39,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:39,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:39,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3099703849950641) internal successors, (1327), 1013 states have internal predecessors, (1327), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:39,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1351 transitions. [2024-10-12 22:38:39,070 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1351 transitions. Word has length 484 [2024-10-12 22:38:39,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:39,070 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1351 transitions. [2024-10-12 22:38:39,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:39,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1351 transitions. [2024-10-12 22:38:39,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-10-12 22:38:39,073 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:39,073 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:39,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-10-12 22:38:39,073 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:39,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:39,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1086406187, now seen corresponding path program 1 times [2024-10-12 22:38:39,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:39,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359009820] [2024-10-12 22:38:39,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:39,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:40,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:40,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:40,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:40,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-10-12 22:38:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:40,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-12 22:38:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:40,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-10-12 22:38:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:40,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:40,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359009820] [2024-10-12 22:38:40,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359009820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:40,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:40,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:38:40,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36193281] [2024-10-12 22:38:40,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:40,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:38:40,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:40,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:38:40,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:40,177 INFO L87 Difference]: Start difference. First operand 1027 states and 1351 transitions. Second operand has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:40,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:40,287 INFO L93 Difference]: Finished difference Result 1591 states and 2094 transitions. [2024-10-12 22:38:40,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:40,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 485 [2024-10-12 22:38:40,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:40,289 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:40,289 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:40,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:40,290 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 621 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:40,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1414 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:40,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:40,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:40,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3089832181638696) internal successors, (1326), 1013 states have internal predecessors, (1326), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:40,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1350 transitions. [2024-10-12 22:38:40,305 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1350 transitions. Word has length 485 [2024-10-12 22:38:40,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:40,305 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1350 transitions. [2024-10-12 22:38:40,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:40,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1350 transitions. [2024-10-12 22:38:40,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-10-12 22:38:40,307 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:40,307 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:40,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-10-12 22:38:40,308 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:40,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:40,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1801266704, now seen corresponding path program 1 times [2024-10-12 22:38:40,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:40,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947834117] [2024-10-12 22:38:40,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:40,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:41,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:41,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:41,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:41,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-10-12 22:38:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:41,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-10-12 22:38:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:41,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-10-12 22:38:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:41,312 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:41,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:41,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947834117] [2024-10-12 22:38:41,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947834117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:41,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:41,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:38:41,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218062856] [2024-10-12 22:38:41,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:41,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:38:41,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:41,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:38:41,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:38:41,314 INFO L87 Difference]: Start difference. First operand 1027 states and 1350 transitions. Second operand has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:41,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:41,408 INFO L93 Difference]: Finished difference Result 1591 states and 2092 transitions. [2024-10-12 22:38:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:38:41,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 486 [2024-10-12 22:38:41,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:41,410 INFO L225 Difference]: With dead ends: 1591 [2024-10-12 22:38:41,410 INFO L226 Difference]: Without dead ends: 1027 [2024-10-12 22:38:41,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:38:41,411 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 510 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:41,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1408 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:41,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-12 22:38:41,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-10-12 22:38:41,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1013 states have (on average 1.3079960513326752) internal successors, (1325), 1013 states have internal predecessors, (1325), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-12 22:38:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1349 transitions. [2024-10-12 22:38:41,426 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1349 transitions. Word has length 486 [2024-10-12 22:38:41,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:41,426 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1349 transitions. [2024-10-12 22:38:41,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:41,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1349 transitions. [2024-10-12 22:38:41,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2024-10-12 22:38:41,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:41,429 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:41,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-10-12 22:38:41,429 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:41,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:41,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1380922822, now seen corresponding path program 1 times [2024-10-12 22:38:41,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:41,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530696264] [2024-10-12 22:38:41,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:41,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:42,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:42,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:42,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:42,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-10-12 22:38:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:42,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-10-12 22:38:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:42,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-10-12 22:38:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:42,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:42,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530696264] [2024-10-12 22:38:42,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530696264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:42,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:42,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 22:38:42,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835084544] [2024-10-12 22:38:42,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:42,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:38:42,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:42,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:38:42,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:42,728 INFO L87 Difference]: Start difference. First operand 1027 states and 1349 transitions. Second operand has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:43,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:43,055 INFO L93 Difference]: Finished difference Result 2197 states and 2888 transitions. [2024-10-12 22:38:43,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:38:43,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 487 [2024-10-12 22:38:43,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:43,057 INFO L225 Difference]: With dead ends: 2197 [2024-10-12 22:38:43,057 INFO L226 Difference]: Without dead ends: 1633 [2024-10-12 22:38:43,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 22:38:43,058 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 700 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:43,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 2663 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 22:38:43,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-10-12 22:38:43,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1503. [2024-10-12 22:38:43,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1486 states have (on average 1.3028263795423958) internal successors, (1936), 1486 states have internal predecessors, (1936), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-12 22:38:43,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1966 transitions. [2024-10-12 22:38:43,078 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1966 transitions. Word has length 487 [2024-10-12 22:38:43,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:43,079 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 1966 transitions. [2024-10-12 22:38:43,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:43,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1966 transitions. [2024-10-12 22:38:43,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-10-12 22:38:43,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:43,081 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:43,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-10-12 22:38:43,082 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:43,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:43,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1407573932, now seen corresponding path program 1 times [2024-10-12 22:38:43,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:43,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102057237] [2024-10-12 22:38:43,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:43,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:44,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:44,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:44,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:44,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-10-12 22:38:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:44,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-10-12 22:38:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:44,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-10-12 22:38:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:44,499 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:44,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:44,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102057237] [2024-10-12 22:38:44,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102057237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:44,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:44,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 22:38:44,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300212] [2024-10-12 22:38:44,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:44,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:38:44,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:44,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:38:44,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:38:44,500 INFO L87 Difference]: Start difference. First operand 1503 states and 1966 transitions. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:44,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:44,966 INFO L93 Difference]: Finished difference Result 2090 states and 2741 transitions. [2024-10-12 22:38:44,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:38:44,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 488 [2024-10-12 22:38:44,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:44,968 INFO L225 Difference]: With dead ends: 2090 [2024-10-12 22:38:44,968 INFO L226 Difference]: Without dead ends: 1526 [2024-10-12 22:38:44,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 22:38:44,969 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 1313 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:44,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 2219 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 22:38:44,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2024-10-12 22:38:44,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1504. [2024-10-12 22:38:44,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1487 states have (on average 1.3026227303295226) internal successors, (1937), 1487 states have internal predecessors, (1937), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-12 22:38:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1967 transitions. [2024-10-12 22:38:44,990 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1967 transitions. Word has length 488 [2024-10-12 22:38:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:44,991 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 1967 transitions. [2024-10-12 22:38:44,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1967 transitions. [2024-10-12 22:38:44,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-10-12 22:38:44,993 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:44,994 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:44,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-10-12 22:38:44,994 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:44,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:44,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1734569237, now seen corresponding path program 1 times [2024-10-12 22:38:44,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:44,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080848328] [2024-10-12 22:38:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:44,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:46,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 22:38:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:46,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 22:38:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:46,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 22:38:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:46,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-10-12 22:38:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:46,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-10-12 22:38:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:46,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-10-12 22:38:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-12 22:38:46,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:46,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080848328] [2024-10-12 22:38:46,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080848328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:46,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:38:46,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 22:38:46,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895572436] [2024-10-12 22:38:46,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:46,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 22:38:46,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:46,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 22:38:46,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-12 22:38:46,693 INFO L87 Difference]: Start difference. First operand 1504 states and 1967 transitions. Second operand has 8 states, 8 states have (on average 47.375) internal successors, (379), 8 states have internal predecessors, (379), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:46,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:46,853 INFO L93 Difference]: Finished difference Result 3336 states and 4346 transitions. [2024-10-12 22:38:46,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 22:38:46,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 47.375) internal successors, (379), 8 states have internal predecessors, (379), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 488 [2024-10-12 22:38:46,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:46,856 INFO L225 Difference]: With dead ends: 3336 [2024-10-12 22:38:46,856 INFO L226 Difference]: Without dead ends: 2578 [2024-10-12 22:38:46,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-12 22:38:46,857 INFO L432 NwaCegarLoop]: 1807 mSDtfsCounter, 1090 mSDsluCounter, 9248 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 11055 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:46,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 11055 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:38:46,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2578 states. [2024-10-12 22:38:46,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2578 to 1590. [2024-10-12 22:38:46,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1569 states have (on average 1.302740599107712) internal successors, (2044), 1569 states have internal predecessors, (2044), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-12 22:38:46,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2082 transitions. [2024-10-12 22:38:46,884 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2082 transitions. Word has length 488 [2024-10-12 22:38:46,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:46,884 INFO L471 AbstractCegarLoop]: Abstraction has 1590 states and 2082 transitions. [2024-10-12 22:38:46,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 47.375) internal successors, (379), 8 states have internal predecessors, (379), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 22:38:46,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2082 transitions. [2024-10-12 22:38:46,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2024-10-12 22:38:46,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:46,887 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:46,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-10-12 22:38:46,887 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:38:46,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:38:46,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1205801245, now seen corresponding path program 1 times [2024-10-12 22:38:46,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:38:46,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725791656] [2024-10-12 22:38:46,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:46,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:38:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:54,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 22:38:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:54,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 22:38:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:54,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 22:38:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:54,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-10-12 22:38:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:54,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-10-12 22:38:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:54,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2024-10-12 22:38:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:54,189 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 81 proven. 38 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-12 22:38:54,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:38:54,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725791656] [2024-10-12 22:38:54,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725791656] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 22:38:54,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325199473] [2024-10-12 22:38:54,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:38:54,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:38:54,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:38:54,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 22:38:54,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 22:38:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:38:56,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 2962 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-12 22:38:56,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:38:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-12 22:38:56,215 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 22:38:56,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325199473] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:38:56,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 22:38:56,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 22 [2024-10-12 22:38:56,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215223418] [2024-10-12 22:38:56,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:38:56,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:38:56,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:38:56,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:38:56,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2024-10-12 22:38:56,217 INFO L87 Difference]: Start difference. First operand 1590 states and 2082 transitions. Second operand has 6 states, 5 states have (on average 75.0) internal successors, (375), 6 states have internal predecessors, (375), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-12 22:38:56,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:38:56,285 INFO L93 Difference]: Finished difference Result 2880 states and 3745 transitions. [2024-10-12 22:38:56,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:38:56,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 75.0) internal successors, (375), 6 states have internal predecessors, (375), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 489 [2024-10-12 22:38:56,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:38:56,287 INFO L225 Difference]: With dead ends: 2880 [2024-10-12 22:38:56,287 INFO L226 Difference]: Without dead ends: 1590 [2024-10-12 22:38:56,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2024-10-12 22:38:56,289 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 0 mSDsluCounter, 2991 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3743 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:38:56,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3743 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:38:56,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2024-10-12 22:38:56,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1590. [2024-10-12 22:38:56,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1569 states have (on average 1.3001912045889101) internal successors, (2040), 1569 states have internal predecessors, (2040), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-12 22:38:56,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2078 transitions. [2024-10-12 22:38:56,318 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2078 transitions. Word has length 489 [2024-10-12 22:38:56,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:38:56,318 INFO L471 AbstractCegarLoop]: Abstraction has 1590 states and 2078 transitions. [2024-10-12 22:38:56,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 75.0) internal successors, (375), 6 states have internal predecessors, (375), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-12 22:38:56,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2078 transitions. [2024-10-12 22:38:56,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2024-10-12 22:38:56,321 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:38:56,321 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:38:56,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0