./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 32bit --witnessprinter.graph.data.programhash 1210d8db9779caa2b34faedb9da4e6c42e2b8376c95e81a461341238221703f5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 07:20:00,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 07:20:00,451 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 07:20:00,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 07:20:00,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 07:20:00,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 07:20:00,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 07:20:00,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 07:20:00,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 07:20:00,492 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 07:20:00,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 07:20:00,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 07:20:00,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 07:20:00,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 07:20:00,494 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 07:20:00,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 07:20:00,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 07:20:00,497 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 07:20:00,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 07:20:00,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 07:20:00,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 07:20:00,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 07:20:00,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 07:20:00,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 07:20:00,499 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 07:20:00,499 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 07:20:00,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 07:20:00,500 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 07:20:00,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 07:20:00,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 07:20:00,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 07:20:00,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 07:20:00,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 07:20:00,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 07:20:00,502 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 07:20:00,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 07:20:00,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 07:20:00,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 07:20:00,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 07:20:00,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 07:20:00,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 07:20:00,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 07:20:00,507 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1210d8db9779caa2b34faedb9da4e6c42e2b8376c95e81a461341238221703f5 [2024-10-11 07:20:00,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 07:20:00,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 07:20:00,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 07:20:00,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 07:20:00,810 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 07:20:00,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i [2024-10-11 07:20:02,221 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 07:20:02,429 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 07:20:02,430 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i [2024-10-11 07:20:02,440 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6e69939b9/7f2e10ebbb3a4eb39e4bcd2db3ed10b7/FLAG4c7d3da81 [2024-10-11 07:20:02,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6e69939b9/7f2e10ebbb3a4eb39e4bcd2db3ed10b7 [2024-10-11 07:20:02,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 07:20:02,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 07:20:02,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 07:20:02,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 07:20:02,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 07:20:02,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:20:02" (1/1) ... [2024-10-11 07:20:02,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2409b800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:02, skipping insertion in model container [2024-10-11 07:20:02,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:20:02" (1/1) ... [2024-10-11 07:20:02,849 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 07:20:03,023 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/hardness-nfm22/hardness_codestructure_normal_file-34.i[913,926] [2024-10-11 07:20:03,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 07:20:03,122 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 07:20:03,134 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/hardness-nfm22/hardness_codestructure_normal_file-34.i[913,926] [2024-10-11 07:20:03,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 07:20:03,197 INFO L204 MainTranslator]: Completed translation [2024-10-11 07:20:03,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03 WrapperNode [2024-10-11 07:20:03,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 07:20:03,198 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 07:20:03,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 07:20:03,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 07:20:03,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,271 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 198 [2024-10-11 07:20:03,272 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 07:20:03,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 07:20:03,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 07:20:03,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 07:20:03,284 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,325 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]. [2024-10-11 07:20:03,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,344 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 07:20:03,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 07:20:03,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 07:20:03,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 07:20:03,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (1/1) ... [2024-10-11 07:20:03,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 07:20:03,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:20:03,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 07:20:03,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 07:20:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 07:20:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 07:20:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 07:20:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 07:20:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 07:20:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 07:20:03,549 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 07:20:03,553 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 07:20:03,970 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-11 07:20:03,970 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 07:20:04,041 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 07:20:04,041 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 07:20:04,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:20:04 BoogieIcfgContainer [2024-10-11 07:20:04,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 07:20:04,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 07:20:04,044 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 07:20:04,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 07:20:04,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:20:02" (1/3) ... [2024-10-11 07:20:04,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51472f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:20:04, skipping insertion in model container [2024-10-11 07:20:04,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:03" (2/3) ... [2024-10-11 07:20:04,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51472f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:20:04, skipping insertion in model container [2024-10-11 07:20:04,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:20:04" (3/3) ... [2024-10-11 07:20:04,052 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-34.i [2024-10-11 07:20:04,066 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 07:20:04,067 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 07:20:04,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 07:20:04,145 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;@795481f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 07:20:04,145 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 07:20:04,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 53 states have (on average 1.509433962264151) internal successors, (80), 54 states have internal predecessors, (80), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 07:20:04,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-11 07:20:04,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:04,167 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:04,168 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:04,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:04,173 INFO L85 PathProgramCache]: Analyzing trace with hash -490347701, now seen corresponding path program 1 times [2024-10-11 07:20:04,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:04,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894642845] [2024-10-11 07:20:04,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:04,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:04,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:04,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894642845] [2024-10-11 07:20:04,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894642845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:04,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:04,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 07:20:04,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150853206] [2024-10-11 07:20:04,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:04,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 07:20:04,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:04,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 07:20:04,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 07:20:04,712 INFO L87 Difference]: Start difference. First operand has 83 states, 53 states have (on average 1.509433962264151) internal successors, (80), 54 states have internal predecessors, (80), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 07:20:04,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:04,766 INFO L93 Difference]: Finished difference Result 163 states and 293 transitions. [2024-10-11 07:20:04,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 07:20:04,769 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 164 [2024-10-11 07:20:04,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:04,778 INFO L225 Difference]: With dead ends: 163 [2024-10-11 07:20:04,778 INFO L226 Difference]: Without dead ends: 81 [2024-10-11 07:20:04,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 07:20:04,787 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:04,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:20:04,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-11 07:20:04,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-10-11 07:20:04,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 52 states have internal predecessors, (75), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 07:20:04,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 129 transitions. [2024-10-11 07:20:04,852 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 129 transitions. Word has length 164 [2024-10-11 07:20:04,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:04,853 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 129 transitions. [2024-10-11 07:20:04,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 07:20:04,853 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 129 transitions. [2024-10-11 07:20:04,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-11 07:20:04,858 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:04,858 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:04,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 07:20:04,859 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:04,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:04,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1930445129, now seen corresponding path program 1 times [2024-10-11 07:20:04,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:04,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723902045] [2024-10-11 07:20:04,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:04,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:05,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:05,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:05,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723902045] [2024-10-11 07:20:05,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723902045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:05,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:05,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 07:20:05,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387615731] [2024-10-11 07:20:05,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:05,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 07:20:05,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:05,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 07:20:05,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 07:20:05,227 INFO L87 Difference]: Start difference. First operand 81 states and 129 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:05,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:05,286 INFO L93 Difference]: Finished difference Result 195 states and 311 transitions. [2024-10-11 07:20:05,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 07:20:05,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 164 [2024-10-11 07:20:05,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:05,290 INFO L225 Difference]: With dead ends: 195 [2024-10-11 07:20:05,290 INFO L226 Difference]: Without dead ends: 115 [2024-10-11 07:20:05,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 07:20:05,292 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 50 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:05,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 244 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:20:05,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-10-11 07:20:05,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 85. [2024-10-11 07:20:05,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 56 states have internal predecessors, (82), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 07:20:05,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 136 transitions. [2024-10-11 07:20:05,315 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 136 transitions. Word has length 164 [2024-10-11 07:20:05,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:05,317 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 136 transitions. [2024-10-11 07:20:05,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:05,318 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 136 transitions. [2024-10-11 07:20:05,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-11 07:20:05,325 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:05,325 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:05,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 07:20:05,326 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:05,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:05,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1663457589, now seen corresponding path program 1 times [2024-10-11 07:20:05,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:05,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370395698] [2024-10-11 07:20:05,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:05,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:06,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:06,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:06,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370395698] [2024-10-11 07:20:06,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370395698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:06,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:06,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 07:20:06,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661243544] [2024-10-11 07:20:06,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:06,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 07:20:06,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:06,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 07:20:06,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:20:06,880 INFO L87 Difference]: Start difference. First operand 85 states and 136 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:07,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:07,293 INFO L93 Difference]: Finished difference Result 262 states and 413 transitions. [2024-10-11 07:20:07,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 07:20:07,294 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 164 [2024-10-11 07:20:07,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:07,298 INFO L225 Difference]: With dead ends: 262 [2024-10-11 07:20:07,300 INFO L226 Difference]: Without dead ends: 178 [2024-10-11 07:20:07,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:20:07,305 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 171 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:07,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 432 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:20:07,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-10-11 07:20:07,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 102. [2024-10-11 07:20:07,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 73 states have (on average 1.5068493150684932) internal successors, (110), 73 states have internal predecessors, (110), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 07:20:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 164 transitions. [2024-10-11 07:20:07,327 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 164 transitions. Word has length 164 [2024-10-11 07:20:07,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:07,327 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 164 transitions. [2024-10-11 07:20:07,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 164 transitions. [2024-10-11 07:20:07,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-11 07:20:07,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:07,330 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:07,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 07:20:07,330 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:07,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:07,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1405292151, now seen corresponding path program 1 times [2024-10-11 07:20:07,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:07,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253394960] [2024-10-11 07:20:07,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:07,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:07,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:07,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:07,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253394960] [2024-10-11 07:20:07,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253394960] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:07,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:07,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 07:20:07,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96220026] [2024-10-11 07:20:07,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:07,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 07:20:07,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:07,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 07:20:07,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:20:07,869 INFO L87 Difference]: Start difference. First operand 102 states and 164 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:08,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:08,193 INFO L93 Difference]: Finished difference Result 264 states and 420 transitions. [2024-10-11 07:20:08,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 07:20:08,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 164 [2024-10-11 07:20:08,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:08,198 INFO L225 Difference]: With dead ends: 264 [2024-10-11 07:20:08,198 INFO L226 Difference]: Without dead ends: 163 [2024-10-11 07:20:08,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:20:08,204 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 122 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:08,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 405 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:20:08,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-10-11 07:20:08,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 124. [2024-10-11 07:20:08,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 95 states have internal predecessors, (143), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 07:20:08,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 197 transitions. [2024-10-11 07:20:08,228 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 197 transitions. Word has length 164 [2024-10-11 07:20:08,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:08,229 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 197 transitions. [2024-10-11 07:20:08,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:08,230 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 197 transitions. [2024-10-11 07:20:08,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-11 07:20:08,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:08,233 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:08,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 07:20:08,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:08,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1677820591, now seen corresponding path program 1 times [2024-10-11 07:20:08,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:08,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577513302] [2024-10-11 07:20:08,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:08,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:12,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:12,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:12,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577513302] [2024-10-11 07:20:12,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577513302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:12,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:12,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 07:20:12,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465142124] [2024-10-11 07:20:12,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:12,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 07:20:12,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:12,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 07:20:12,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:20:12,373 INFO L87 Difference]: Start difference. First operand 124 states and 197 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:13,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:13,402 INFO L93 Difference]: Finished difference Result 357 states and 559 transitions. [2024-10-11 07:20:13,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 07:20:13,403 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 165 [2024-10-11 07:20:13,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:13,405 INFO L225 Difference]: With dead ends: 357 [2024-10-11 07:20:13,405 INFO L226 Difference]: Without dead ends: 234 [2024-10-11 07:20:13,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2024-10-11 07:20:13,407 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 235 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:13,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 563 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 07:20:13,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-10-11 07:20:13,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 137. [2024-10-11 07:20:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 108 states have (on average 1.5277777777777777) internal successors, (165), 108 states have internal predecessors, (165), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 07:20:13,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 219 transitions. [2024-10-11 07:20:13,422 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 219 transitions. Word has length 165 [2024-10-11 07:20:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:13,422 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 219 transitions. [2024-10-11 07:20:13,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 219 transitions. [2024-10-11 07:20:13,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-11 07:20:13,424 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:13,425 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:13,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 07:20:13,425 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:13,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:13,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1735078893, now seen corresponding path program 1 times [2024-10-11 07:20:13,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:13,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922134448] [2024-10-11 07:20:13,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:13,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:16,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:16,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:16,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922134448] [2024-10-11 07:20:16,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922134448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:16,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:16,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 07:20:16,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854606258] [2024-10-11 07:20:16,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:16,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 07:20:16,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:16,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 07:20:16,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-11 07:20:16,381 INFO L87 Difference]: Start difference. First operand 137 states and 219 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:17,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:17,414 INFO L93 Difference]: Finished difference Result 386 states and 609 transitions. [2024-10-11 07:20:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 07:20:17,416 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 165 [2024-10-11 07:20:17,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:17,418 INFO L225 Difference]: With dead ends: 386 [2024-10-11 07:20:17,419 INFO L226 Difference]: Without dead ends: 250 [2024-10-11 07:20:17,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:20:17,421 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 214 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:17,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 645 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 07:20:17,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-10-11 07:20:17,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 156. [2024-10-11 07:20:17,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 127 states have (on average 1.5354330708661417) internal successors, (195), 127 states have internal predecessors, (195), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 07:20:17,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 249 transitions. [2024-10-11 07:20:17,431 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 249 transitions. Word has length 165 [2024-10-11 07:20:17,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:17,432 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 249 transitions. [2024-10-11 07:20:17,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:17,432 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 249 transitions. [2024-10-11 07:20:17,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-11 07:20:17,434 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:17,434 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:17,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 07:20:17,434 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:17,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:17,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1993244331, now seen corresponding path program 1 times [2024-10-11 07:20:17,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:17,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955000185] [2024-10-11 07:20:17,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:17,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:18,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:18,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:18,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955000185] [2024-10-11 07:20:18,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955000185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:18,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:18,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 07:20:18,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864378826] [2024-10-11 07:20:18,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:18,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 07:20:18,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:18,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 07:20:18,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:20:18,664 INFO L87 Difference]: Start difference. First operand 156 states and 249 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:19,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:19,250 INFO L93 Difference]: Finished difference Result 393 states and 620 transitions. [2024-10-11 07:20:19,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 07:20:19,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 165 [2024-10-11 07:20:19,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:19,253 INFO L225 Difference]: With dead ends: 393 [2024-10-11 07:20:19,253 INFO L226 Difference]: Without dead ends: 238 [2024-10-11 07:20:19,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:20:19,255 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 172 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:19,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 505 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 07:20:19,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-10-11 07:20:19,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 144. [2024-10-11 07:20:19,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 115 states have (on average 1.5217391304347827) internal successors, (175), 115 states have internal predecessors, (175), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 07:20:19,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 229 transitions. [2024-10-11 07:20:19,271 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 229 transitions. Word has length 165 [2024-10-11 07:20:19,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:19,271 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 229 transitions. [2024-10-11 07:20:19,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:19,271 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 229 transitions. [2024-10-11 07:20:19,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-11 07:20:19,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:19,275 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:19,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 07:20:19,275 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:19,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:19,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1091014577, now seen corresponding path program 1 times [2024-10-11 07:20:19,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:19,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044485899] [2024-10-11 07:20:19,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:19,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:19,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:19,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044485899] [2024-10-11 07:20:19,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044485899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:19,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:19,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:20:19,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788070739] [2024-10-11 07:20:19,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:19,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 07:20:19,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:19,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 07:20:19,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 07:20:19,497 INFO L87 Difference]: Start difference. First operand 144 states and 229 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:19,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:19,703 INFO L93 Difference]: Finished difference Result 330 states and 522 transitions. [2024-10-11 07:20:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 07:20:19,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 165 [2024-10-11 07:20:19,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:19,706 INFO L225 Difference]: With dead ends: 330 [2024-10-11 07:20:19,706 INFO L226 Difference]: Without dead ends: 187 [2024-10-11 07:20:19,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:20:19,708 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 61 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:19,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 329 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:20:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-11 07:20:19,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 184. [2024-10-11 07:20:19,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 150 states have (on average 1.5266666666666666) internal successors, (229), 151 states have internal predecessors, (229), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 07:20:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 291 transitions. [2024-10-11 07:20:19,724 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 291 transitions. Word has length 165 [2024-10-11 07:20:19,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:19,725 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 291 transitions. [2024-10-11 07:20:19,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:19,725 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 291 transitions. [2024-10-11 07:20:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-11 07:20:19,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:19,728 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:19,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 07:20:19,729 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:19,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:19,729 INFO L85 PathProgramCache]: Analyzing trace with hash -421828527, now seen corresponding path program 1 times [2024-10-11 07:20:19,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:19,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064617789] [2024-10-11 07:20:19,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:19,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:20,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:20,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064617789] [2024-10-11 07:20:20,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064617789] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:20,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:20,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 07:20:20,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161366560] [2024-10-11 07:20:20,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:20,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 07:20:20,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:20,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 07:20:20,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:20:20,699 INFO L87 Difference]: Start difference. First operand 184 states and 291 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:21,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:21,263 INFO L93 Difference]: Finished difference Result 445 states and 700 transitions. [2024-10-11 07:20:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 07:20:21,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 165 [2024-10-11 07:20:21,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:21,267 INFO L225 Difference]: With dead ends: 445 [2024-10-11 07:20:21,267 INFO L226 Difference]: Without dead ends: 262 [2024-10-11 07:20:21,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:20:21,269 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 181 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:21,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 568 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 07:20:21,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-10-11 07:20:21,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 187. [2024-10-11 07:20:21,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 153 states have (on average 1.5098039215686274) internal successors, (231), 154 states have internal predecessors, (231), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 07:20:21,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 293 transitions. [2024-10-11 07:20:21,279 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 293 transitions. Word has length 165 [2024-10-11 07:20:21,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:21,279 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 293 transitions. [2024-10-11 07:20:21,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:21,280 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 293 transitions. [2024-10-11 07:20:21,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-11 07:20:21,281 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:21,281 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:21,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 07:20:21,282 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:21,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:21,282 INFO L85 PathProgramCache]: Analyzing trace with hash 930271011, now seen corresponding path program 1 times [2024-10-11 07:20:21,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:21,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753399713] [2024-10-11 07:20:21,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:21,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:21,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:21,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:21,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753399713] [2024-10-11 07:20:21,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753399713] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:21,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:21,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:20:21,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239539556] [2024-10-11 07:20:21,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:21,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 07:20:21,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:21,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 07:20:21,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 07:20:21,475 INFO L87 Difference]: Start difference. First operand 187 states and 293 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:21,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:21,637 INFO L93 Difference]: Finished difference Result 377 states and 589 transitions. [2024-10-11 07:20:21,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 07:20:21,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 166 [2024-10-11 07:20:21,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:21,643 INFO L225 Difference]: With dead ends: 377 [2024-10-11 07:20:21,643 INFO L226 Difference]: Without dead ends: 191 [2024-10-11 07:20:21,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:20:21,646 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 59 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:21,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 352 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:20:21,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-11 07:20:21,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 187. [2024-10-11 07:20:21,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 153 states have (on average 1.5098039215686274) internal successors, (231), 154 states have internal predecessors, (231), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 07:20:21,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 293 transitions. [2024-10-11 07:20:21,660 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 293 transitions. Word has length 166 [2024-10-11 07:20:21,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:21,661 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 293 transitions. [2024-10-11 07:20:21,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:21,661 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 293 transitions. [2024-10-11 07:20:21,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-11 07:20:21,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:21,664 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:21,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 07:20:21,664 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:21,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:21,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1944386909, now seen corresponding path program 1 times [2024-10-11 07:20:21,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:21,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156491843] [2024-10-11 07:20:21,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:21,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:25,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:25,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:25,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156491843] [2024-10-11 07:20:25,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156491843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:25,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:25,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-11 07:20:25,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973936024] [2024-10-11 07:20:25,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:25,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 07:20:25,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:25,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 07:20:25,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-11 07:20:25,629 INFO L87 Difference]: Start difference. First operand 187 states and 293 transitions. Second operand has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:27,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:27,442 INFO L93 Difference]: Finished difference Result 468 states and 723 transitions. [2024-10-11 07:20:27,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 07:20:27,443 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 166 [2024-10-11 07:20:27,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:27,445 INFO L225 Difference]: With dead ends: 468 [2024-10-11 07:20:27,445 INFO L226 Difference]: Without dead ends: 282 [2024-10-11 07:20:27,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2024-10-11 07:20:27,446 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 398 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:27,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 845 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 07:20:27,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-10-11 07:20:27,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 185. [2024-10-11 07:20:27,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 151 states have (on average 1.5033112582781456) internal successors, (227), 152 states have internal predecessors, (227), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 07:20:27,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 289 transitions. [2024-10-11 07:20:27,461 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 289 transitions. Word has length 166 [2024-10-11 07:20:27,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:27,462 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 289 transitions. [2024-10-11 07:20:27,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:27,463 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 289 transitions. [2024-10-11 07:20:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-11 07:20:27,464 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:27,464 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:27,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 07:20:27,465 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:27,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:27,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1887128607, now seen corresponding path program 1 times [2024-10-11 07:20:27,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:27,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095182508] [2024-10-11 07:20:27,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:27,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:30,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:30,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:30,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095182508] [2024-10-11 07:20:30,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095182508] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:30,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:30,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 07:20:30,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698122956] [2024-10-11 07:20:30,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:30,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 07:20:30,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:30,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 07:20:30,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:20:30,693 INFO L87 Difference]: Start difference. First operand 185 states and 289 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:33,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:33,332 INFO L93 Difference]: Finished difference Result 544 states and 841 transitions. [2024-10-11 07:20:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 07:20:33,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 166 [2024-10-11 07:20:33,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:33,339 INFO L225 Difference]: With dead ends: 544 [2024-10-11 07:20:33,339 INFO L226 Difference]: Without dead ends: 360 [2024-10-11 07:20:33,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2024-10-11 07:20:33,340 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 347 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:33,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 580 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 07:20:33,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-10-11 07:20:33,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 202. [2024-10-11 07:20:33,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 168 states have (on average 1.5119047619047619) internal successors, (254), 169 states have internal predecessors, (254), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 07:20:33,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 316 transitions. [2024-10-11 07:20:33,362 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 316 transitions. Word has length 166 [2024-10-11 07:20:33,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:33,363 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 316 transitions. [2024-10-11 07:20:33,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:33,363 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 316 transitions. [2024-10-11 07:20:33,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-11 07:20:33,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:33,364 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:33,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 07:20:33,364 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:33,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:33,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1628963169, now seen corresponding path program 1 times [2024-10-11 07:20:33,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:33,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169664186] [2024-10-11 07:20:33,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:33,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:35,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:35,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:35,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169664186] [2024-10-11 07:20:35,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169664186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:35,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:35,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 07:20:35,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805740869] [2024-10-11 07:20:35,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:35,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 07:20:35,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:35,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 07:20:35,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-10-11 07:20:35,533 INFO L87 Difference]: Start difference. First operand 202 states and 316 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:37,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:37,202 INFO L93 Difference]: Finished difference Result 498 states and 774 transitions. [2024-10-11 07:20:37,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 07:20:37,204 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 166 [2024-10-11 07:20:37,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:37,206 INFO L225 Difference]: With dead ends: 498 [2024-10-11 07:20:37,206 INFO L226 Difference]: Without dead ends: 297 [2024-10-11 07:20:37,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:20:37,207 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 194 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:37,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 757 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 07:20:37,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-10-11 07:20:37,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 187. [2024-10-11 07:20:37,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 153 states have (on average 1.4967320261437909) internal successors, (229), 154 states have internal predecessors, (229), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 07:20:37,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 291 transitions. [2024-10-11 07:20:37,218 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 291 transitions. Word has length 166 [2024-10-11 07:20:37,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:37,219 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 291 transitions. [2024-10-11 07:20:37,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:37,219 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 291 transitions. [2024-10-11 07:20:37,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-11 07:20:37,220 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:37,220 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:37,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 07:20:37,220 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:37,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:37,221 INFO L85 PathProgramCache]: Analyzing trace with hash -347352754, now seen corresponding path program 1 times [2024-10-11 07:20:37,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:37,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52913218] [2024-10-11 07:20:37,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:37,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:37,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:37,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52913218] [2024-10-11 07:20:37,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52913218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:37,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:37,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:20:37,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237395753] [2024-10-11 07:20:37,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:37,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 07:20:37,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:37,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 07:20:37,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 07:20:37,377 INFO L87 Difference]: Start difference. First operand 187 states and 291 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:37,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:37,542 INFO L93 Difference]: Finished difference Result 376 states and 583 transitions. [2024-10-11 07:20:37,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 07:20:37,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2024-10-11 07:20:37,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:37,544 INFO L225 Difference]: With dead ends: 376 [2024-10-11 07:20:37,544 INFO L226 Difference]: Without dead ends: 190 [2024-10-11 07:20:37,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:20:37,545 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 57 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:37,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 341 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:20:37,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-10-11 07:20:37,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 185. [2024-10-11 07:20:37,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 151 states have (on average 1.490066225165563) internal successors, (225), 152 states have internal predecessors, (225), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 07:20:37,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 287 transitions. [2024-10-11 07:20:37,559 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 287 transitions. Word has length 167 [2024-10-11 07:20:37,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:37,560 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 287 transitions. [2024-10-11 07:20:37,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:37,560 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 287 transitions. [2024-10-11 07:20:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-11 07:20:37,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:37,561 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:37,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 07:20:37,561 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:37,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:37,562 INFO L85 PathProgramCache]: Analyzing trace with hash 885056765, now seen corresponding path program 1 times [2024-10-11 07:20:37,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:37,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881333012] [2024-10-11 07:20:37,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:37,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:39,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:39,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:39,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881333012] [2024-10-11 07:20:39,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881333012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:39,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:39,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 07:20:39,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894187124] [2024-10-11 07:20:39,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:39,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 07:20:39,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:39,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 07:20:39,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:20:39,107 INFO L87 Difference]: Start difference. First operand 185 states and 287 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:39,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:39,515 INFO L93 Difference]: Finished difference Result 460 states and 709 transitions. [2024-10-11 07:20:39,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 07:20:39,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2024-10-11 07:20:39,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:39,518 INFO L225 Difference]: With dead ends: 460 [2024-10-11 07:20:39,518 INFO L226 Difference]: Without dead ends: 276 [2024-10-11 07:20:39,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:20:39,519 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 133 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:39,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 560 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 07:20:39,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-10-11 07:20:39,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 185. [2024-10-11 07:20:39,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 151 states have (on average 1.490066225165563) internal successors, (225), 152 states have internal predecessors, (225), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 07:20:39,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 287 transitions. [2024-10-11 07:20:39,529 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 287 transitions. Word has length 167 [2024-10-11 07:20:39,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:39,529 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 287 transitions. [2024-10-11 07:20:39,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 287 transitions. [2024-10-11 07:20:39,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-11 07:20:39,530 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:39,530 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:39,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 07:20:39,531 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:39,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:39,531 INFO L85 PathProgramCache]: Analyzing trace with hash -35947590, now seen corresponding path program 1 times [2024-10-11 07:20:39,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:39,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270356036] [2024-10-11 07:20:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:20:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:20:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:20:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:20:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:20:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:20:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:20:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:20:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:20:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:20:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:20:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:20:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:20:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:20:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:20:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:20:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:20:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:20:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:20:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:20:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:20:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:20:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:20:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:20:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:20:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:20:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:20:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:20:56,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:20:56,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:20:56,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270356036] [2024-10-11 07:20:56,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270356036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:20:56,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:20:56,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 07:20:56,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806824753] [2024-10-11 07:20:56,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:20:56,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 07:20:56,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:20:56,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 07:20:56,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-11 07:20:56,790 INFO L87 Difference]: Start difference. First operand 185 states and 287 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:59,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:20:59,383 INFO L93 Difference]: Finished difference Result 654 states and 1000 transitions. [2024-10-11 07:20:59,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 07:20:59,384 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2024-10-11 07:20:59,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:20:59,388 INFO L225 Difference]: With dead ends: 654 [2024-10-11 07:20:59,388 INFO L226 Difference]: Without dead ends: 470 [2024-10-11 07:20:59,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:20:59,389 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 290 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 07:20:59,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 719 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 07:20:59,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-10-11 07:20:59,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 373. [2024-10-11 07:20:59,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 290 states have (on average 1.4448275862068964) internal successors, (419), 293 states have internal predecessors, (419), 77 states have call successors, (77), 5 states have call predecessors, (77), 5 states have return successors, (77), 74 states have call predecessors, (77), 77 states have call successors, (77) [2024-10-11 07:20:59,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 573 transitions. [2024-10-11 07:20:59,440 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 573 transitions. Word has length 167 [2024-10-11 07:20:59,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:20:59,441 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 573 transitions. [2024-10-11 07:20:59,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:20:59,441 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 573 transitions. [2024-10-11 07:20:59,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-11 07:20:59,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:20:59,442 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:20:59,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 07:20:59,442 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:20:59,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:20:59,443 INFO L85 PathProgramCache]: Analyzing trace with hash 644110780, now seen corresponding path program 1 times [2024-10-11 07:20:59,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:20:59,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473330316] [2024-10-11 07:20:59,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:20:59,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:20:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:21:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:21:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:21:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:21:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:21:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:21:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:21:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:21:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:21:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:21:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:21:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:21:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:21:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:21:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 07:21:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:21:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 07:21:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:21:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 07:21:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:21:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 07:21:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:21:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 07:21:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:21:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 07:21:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:21:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 07:21:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:21:17,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 07:21:17,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:21:17,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473330316] [2024-10-11 07:21:17,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473330316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:21:17,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:21:17,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 07:21:17,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172116194] [2024-10-11 07:21:17,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:21:17,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 07:21:17,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:21:17,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 07:21:17,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-11 07:21:17,123 INFO L87 Difference]: Start difference. First operand 373 states and 573 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:21:18,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:21:18,992 INFO L93 Difference]: Finished difference Result 573 states and 863 transitions. [2024-10-11 07:21:18,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 07:21:18,992 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2024-10-11 07:21:18,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:21:18,997 INFO L225 Difference]: With dead ends: 573 [2024-10-11 07:21:18,997 INFO L226 Difference]: Without dead ends: 571 [2024-10-11 07:21:18,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-10-11 07:21:18,998 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 212 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:21:18,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 736 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 07:21:18,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-10-11 07:21:19,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 548. [2024-10-11 07:21:19,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 415 states have (on average 1.4216867469879517) internal successors, (590), 421 states have internal predecessors, (590), 122 states have call successors, (122), 10 states have call predecessors, (122), 10 states have return successors, (122), 116 states have call predecessors, (122), 122 states have call successors, (122) [2024-10-11 07:21:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 834 transitions. [2024-10-11 07:21:19,101 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 834 transitions. Word has length 167 [2024-10-11 07:21:19,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:21:19,102 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 834 transitions. [2024-10-11 07:21:19,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 07:21:19,102 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 834 transitions. [2024-10-11 07:21:19,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-11 07:21:19,103 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:21:19,103 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:21:19,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 07:21:19,104 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:21:19,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:21:19,104 INFO L85 PathProgramCache]: Analyzing trace with hash -737012168, now seen corresponding path program 1 times [2024-10-11 07:21:19,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:21:19,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336547519] [2024-10-11 07:21:19,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:21:19,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:21:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat