./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b58c5e80ee969397030b74a8310e40cf5de69934e0fdffd3481e8555498390ac --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 10:09:23,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 10:09:23,565 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 10:09:23,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 10:09:23,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 10:09:23,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 10:09:23,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 10:09:23,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 10:09:23,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 10:09:23,605 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 10:09:23,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 10:09:23,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 10:09:23,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 10:09:23,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 10:09:23,607 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 10:09:23,608 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 10:09:23,608 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 10:09:23,609 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 10:09:23,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 10:09:23,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 10:09:23,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 10:09:23,611 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 10:09:23,611 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 10:09:23,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 10:09:23,612 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 10:09:23,612 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 10:09:23,612 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 10:09:23,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 10:09:23,613 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 10:09:23,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:09:23,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 10:09:23,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 10:09:23,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 10:09:23,622 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 10:09:23,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 10:09:23,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 10:09:23,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 10:09:23,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 10:09:23,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 10:09:23,623 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b58c5e80ee969397030b74a8310e40cf5de69934e0fdffd3481e8555498390ac [2024-11-16 10:09:23,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 10:09:23,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 10:09:23,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 10:09:23,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 10:09:23,916 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 10:09:23,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c [2024-11-16 10:09:25,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 10:09:25,687 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 10:09:25,692 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c [2024-11-16 10:09:25,719 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df548bf0/5be2b83820b54270b995b6c2c29b4457/FLAG619601af9 [2024-11-16 10:09:25,734 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df548bf0/5be2b83820b54270b995b6c2c29b4457 [2024-11-16 10:09:25,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 10:09:25,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 10:09:25,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 10:09:25,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 10:09:25,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 10:09:25,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:09:25" (1/1) ... [2024-11-16 10:09:25,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d895e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:25, skipping insertion in model container [2024-11-16 10:09:25,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:09:25" (1/1) ... [2024-11-16 10:09:25,809 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 10:09:26,035 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c[1271,1284] [2024-11-16 10:09:26,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:09:26,420 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 10:09:26,431 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c[1271,1284] [2024-11-16 10:09:26,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:09:26,602 INFO L204 MainTranslator]: Completed translation [2024-11-16 10:09:26,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26 WrapperNode [2024-11-16 10:09:26,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 10:09:26,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 10:09:26,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 10:09:26,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 10:09:26,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:26,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:27,200 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3958 [2024-11-16 10:09:27,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 10:09:27,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 10:09:27,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 10:09:27,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 10:09:27,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:27,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:27,379 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:27,584 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]. [2024-11-16 10:09:27,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:27,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:27,757 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:27,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:27,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:27,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:27,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 10:09:27,933 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 10:09:27,933 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 10:09:27,933 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 10:09:27,934 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (1/1) ... [2024-11-16 10:09:27,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:09:27,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:09:27,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 10:09:27,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 10:09:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 10:09:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 10:09:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 10:09:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 10:09:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 10:09:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 10:09:28,336 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 10:09:28,338 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 10:09:32,413 INFO L? ?]: Removed 2212 outVars from TransFormulas that were not future-live. [2024-11-16 10:09:32,413 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 10:09:32,631 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 10:09:32,631 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 10:09:32,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:09:32 BoogieIcfgContainer [2024-11-16 10:09:32,632 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 10:09:32,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 10:09:32,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 10:09:32,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 10:09:32,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:09:25" (1/3) ... [2024-11-16 10:09:32,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20be9945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:09:32, skipping insertion in model container [2024-11-16 10:09:32,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:09:26" (2/3) ... [2024-11-16 10:09:32,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20be9945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:09:32, skipping insertion in model container [2024-11-16 10:09:32,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:09:32" (3/3) ... [2024-11-16 10:09:32,643 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w16_d16_e0.c [2024-11-16 10:09:32,662 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 10:09:32,662 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 10:09:32,778 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 10:09:32,790 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;@368c2188, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 10:09:32,791 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 10:09:32,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 1163 states, 1153 states have (on average 1.4943625325238508) internal successors, (1723), 1154 states have internal predecessors, (1723), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:32,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-16 10:09:32,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:32,830 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:32,831 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:32,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:32,840 INFO L85 PathProgramCache]: Analyzing trace with hash 83597508, now seen corresponding path program 1 times [2024-11-16 10:09:32,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:32,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891874901] [2024-11-16 10:09:32,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:32,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:33,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:33,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:33,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:33,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:33,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:33,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:33,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:33,623 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:33,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:33,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891874901] [2024-11-16 10:09:33,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891874901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:33,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:33,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 10:09:33,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756262537] [2024-11-16 10:09:33,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:33,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 10:09:33,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:33,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 10:09:33,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:09:33,675 INFO L87 Difference]: Start difference. First operand has 1163 states, 1153 states have (on average 1.4943625325238508) internal successors, (1723), 1154 states have internal predecessors, (1723), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 172.0) internal successors, (344), 2 states have internal predecessors, (344), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:09:34,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:34,149 INFO L93 Difference]: Finished difference Result 2139 states and 3205 transitions. [2024-11-16 10:09:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 10:09:34,152 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 172.0) internal successors, (344), 2 states have internal predecessors, (344), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 376 [2024-11-16 10:09:34,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:34,173 INFO L225 Difference]: With dead ends: 2139 [2024-11-16 10:09:34,175 INFO L226 Difference]: Without dead ends: 1158 [2024-11-16 10:09:34,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:09:34,190 INFO L432 NwaCegarLoop]: 1447 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:34,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1447 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:09:34,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-16 10:09:34,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2024-11-16 10:09:34,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1149 states have (on average 1.4934725848563968) internal successors, (1716), 1149 states have internal predecessors, (1716), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:34,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1730 transitions. [2024-11-16 10:09:34,301 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1730 transitions. Word has length 376 [2024-11-16 10:09:34,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:34,302 INFO L471 AbstractCegarLoop]: Abstraction has 1158 states and 1730 transitions. [2024-11-16 10:09:34,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 172.0) internal successors, (344), 2 states have internal predecessors, (344), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:09:34,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1730 transitions. [2024-11-16 10:09:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-16 10:09:34,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:34,313 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:34,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 10:09:34,314 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:34,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:34,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1084835467, now seen corresponding path program 1 times [2024-11-16 10:09:34,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:34,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875210071] [2024-11-16 10:09:34,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:34,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:36,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:36,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:36,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:36,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:36,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:36,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:36,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:36,276 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:36,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:36,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875210071] [2024-11-16 10:09:36,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875210071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:36,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:36,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:09:36,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885140967] [2024-11-16 10:09:36,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:36,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:09:36,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:36,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:09:36,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:09:36,281 INFO L87 Difference]: Start difference. First operand 1158 states and 1730 transitions. Second operand has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:36,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:36,871 INFO L93 Difference]: Finished difference Result 1163 states and 1735 transitions. [2024-11-16 10:09:36,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:36,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 376 [2024-11-16 10:09:36,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:36,882 INFO L225 Difference]: With dead ends: 1163 [2024-11-16 10:09:36,882 INFO L226 Difference]: Without dead ends: 1160 [2024-11-16 10:09:36,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:09:36,887 INFO L432 NwaCegarLoop]: 1445 mSDtfsCounter, 0 mSDsluCounter, 2885 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4330 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:36,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4330 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:09:36,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-16 10:09:36,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2024-11-16 10:09:36,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1151 states have (on average 1.4926151172893136) internal successors, (1718), 1151 states have internal predecessors, (1718), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:36,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1732 transitions. [2024-11-16 10:09:36,916 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1732 transitions. Word has length 376 [2024-11-16 10:09:36,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:36,919 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1732 transitions. [2024-11-16 10:09:36,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:36,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1732 transitions. [2024-11-16 10:09:36,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-16 10:09:36,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:36,926 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:36,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 10:09:36,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:36,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:36,929 INFO L85 PathProgramCache]: Analyzing trace with hash -584784681, now seen corresponding path program 1 times [2024-11-16 10:09:36,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:36,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037679259] [2024-11-16 10:09:36,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:36,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:38,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:38,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:38,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:38,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:38,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:38,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:38,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:38,049 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:38,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:38,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037679259] [2024-11-16 10:09:38,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037679259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:38,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:38,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:38,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707917337] [2024-11-16 10:09:38,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:38,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:38,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:38,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:38,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:38,053 INFO L87 Difference]: Start difference. First operand 1160 states and 1732 transitions. Second operand has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:39,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:39,446 INFO L93 Difference]: Finished difference Result 2961 states and 4425 transitions. [2024-11-16 10:09:39,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:09:39,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 377 [2024-11-16 10:09:39,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:39,453 INFO L225 Difference]: With dead ends: 2961 [2024-11-16 10:09:39,453 INFO L226 Difference]: Without dead ends: 1160 [2024-11-16 10:09:39,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:09:39,457 INFO L432 NwaCegarLoop]: 1507 mSDtfsCounter, 3505 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3505 SdHoareTripleChecker+Valid, 4165 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:39,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3505 Valid, 4165 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 10:09:39,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-16 10:09:39,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2024-11-16 10:09:39,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1151 states have (on average 1.4917463075586446) internal successors, (1717), 1151 states have internal predecessors, (1717), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:39,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1731 transitions. [2024-11-16 10:09:39,484 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1731 transitions. Word has length 377 [2024-11-16 10:09:39,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:39,484 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1731 transitions. [2024-11-16 10:09:39,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:39,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1731 transitions. [2024-11-16 10:09:39,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-16 10:09:39,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:39,492 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:39,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 10:09:39,492 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:39,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:39,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1175016704, now seen corresponding path program 1 times [2024-11-16 10:09:39,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:39,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624377635] [2024-11-16 10:09:39,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:39,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:40,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:40,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:40,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:40,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:40,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:40,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:40,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:40,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:40,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624377635] [2024-11-16 10:09:40,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624377635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:40,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:40,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:40,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466739444] [2024-11-16 10:09:40,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:40,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:40,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:40,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:40,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:40,637 INFO L87 Difference]: Start difference. First operand 1160 states and 1731 transitions. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:41,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:41,685 INFO L93 Difference]: Finished difference Result 2138 states and 3190 transitions. [2024-11-16 10:09:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:41,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 378 [2024-11-16 10:09:41,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:41,695 INFO L225 Difference]: With dead ends: 2138 [2024-11-16 10:09:41,695 INFO L226 Difference]: Without dead ends: 1160 [2024-11-16 10:09:41,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:09:41,699 INFO L432 NwaCegarLoop]: 1129 mSDtfsCounter, 3092 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3099 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:41,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3099 Valid, 2260 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 10:09:41,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-16 10:09:41,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2024-11-16 10:09:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1151 states have (on average 1.4908774978279757) internal successors, (1716), 1151 states have internal predecessors, (1716), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:41,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1730 transitions. [2024-11-16 10:09:41,728 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1730 transitions. Word has length 378 [2024-11-16 10:09:41,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:41,729 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1730 transitions. [2024-11-16 10:09:41,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1730 transitions. [2024-11-16 10:09:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-16 10:09:41,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:41,734 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:41,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 10:09:41,734 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:41,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:41,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1179831468, now seen corresponding path program 1 times [2024-11-16 10:09:41,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:41,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348258269] [2024-11-16 10:09:41,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:41,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:42,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:42,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:42,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:42,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:42,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:42,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:42,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:42,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:42,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348258269] [2024-11-16 10:09:42,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348258269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:42,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:42,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:09:42,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899782363] [2024-11-16 10:09:42,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:42,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:09:42,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:42,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:09:42,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:09:42,641 INFO L87 Difference]: Start difference. First operand 1160 states and 1730 transitions. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:43,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:43,214 INFO L93 Difference]: Finished difference Result 2140 states and 3191 transitions. [2024-11-16 10:09:43,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:43,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 379 [2024-11-16 10:09:43,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:43,222 INFO L225 Difference]: With dead ends: 2140 [2024-11-16 10:09:43,223 INFO L226 Difference]: Without dead ends: 1162 [2024-11-16 10:09:43,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:09:43,226 INFO L432 NwaCegarLoop]: 1443 mSDtfsCounter, 0 mSDsluCounter, 2878 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4321 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:43,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4321 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:09:43,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-16 10:09:43,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-11-16 10:09:43,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1153 states have (on average 1.4900260190806591) internal successors, (1718), 1153 states have internal predecessors, (1718), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:43,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1732 transitions. [2024-11-16 10:09:43,253 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1732 transitions. Word has length 379 [2024-11-16 10:09:43,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:43,254 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1732 transitions. [2024-11-16 10:09:43,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:43,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1732 transitions. [2024-11-16 10:09:43,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-11-16 10:09:43,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:43,257 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:43,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 10:09:43,258 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:43,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:43,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1827174547, now seen corresponding path program 1 times [2024-11-16 10:09:43,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:43,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794931349] [2024-11-16 10:09:43,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:43,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:44,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:44,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:44,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:44,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:44,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:44,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:44,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:44,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:44,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794931349] [2024-11-16 10:09:44,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794931349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:44,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:44,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:09:44,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469821275] [2024-11-16 10:09:44,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:44,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:09:44,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:44,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:09:44,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:09:44,404 INFO L87 Difference]: Start difference. First operand 1162 states and 1732 transitions. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:45,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:45,054 INFO L93 Difference]: Finished difference Result 2142 states and 3192 transitions. [2024-11-16 10:09:45,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:45,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 380 [2024-11-16 10:09:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:45,059 INFO L225 Difference]: With dead ends: 2142 [2024-11-16 10:09:45,060 INFO L226 Difference]: Without dead ends: 1162 [2024-11-16 10:09:45,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:45,063 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 1453 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:45,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 2740 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 10:09:45,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-16 10:09:45,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-11-16 10:09:45,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1153 states have (on average 1.4891587163920208) internal successors, (1717), 1153 states have internal predecessors, (1717), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:45,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1731 transitions. [2024-11-16 10:09:45,091 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1731 transitions. Word has length 380 [2024-11-16 10:09:45,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:45,092 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1731 transitions. [2024-11-16 10:09:45,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:45,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1731 transitions. [2024-11-16 10:09:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-11-16 10:09:45,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:45,095 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:45,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 10:09:45,096 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:45,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:45,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2079120438, now seen corresponding path program 1 times [2024-11-16 10:09:45,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:45,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833661947] [2024-11-16 10:09:45,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:45,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:45,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:45,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:45,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:45,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:45,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:45,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:45,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:45,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:45,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833661947] [2024-11-16 10:09:45,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833661947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:45,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:45,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:45,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178448790] [2024-11-16 10:09:45,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:45,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:45,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:45,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:45,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:45,789 INFO L87 Difference]: Start difference. First operand 1162 states and 1731 transitions. Second operand has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:46,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:46,563 INFO L93 Difference]: Finished difference Result 2288 states and 3407 transitions. [2024-11-16 10:09:46,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:09:46,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 381 [2024-11-16 10:09:46,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:46,573 INFO L225 Difference]: With dead ends: 2288 [2024-11-16 10:09:46,574 INFO L226 Difference]: Without dead ends: 1162 [2024-11-16 10:09:46,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:09:46,576 INFO L432 NwaCegarLoop]: 1432 mSDtfsCounter, 1878 mSDsluCounter, 2809 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 4241 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:46,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 4241 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 10:09:46,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-16 10:09:46,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-11-16 10:09:46,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1153 states have (on average 1.4882914137033825) internal successors, (1716), 1153 states have internal predecessors, (1716), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:46,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1730 transitions. [2024-11-16 10:09:46,600 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1730 transitions. Word has length 381 [2024-11-16 10:09:46,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:46,601 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1730 transitions. [2024-11-16 10:09:46,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:46,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1730 transitions. [2024-11-16 10:09:46,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-16 10:09:46,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:46,604 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:46,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 10:09:46,604 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:46,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:46,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1954061266, now seen corresponding path program 1 times [2024-11-16 10:09:46,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:46,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317294826] [2024-11-16 10:09:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:46,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:47,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:47,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:47,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:47,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:47,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:47,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:47,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:47,245 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:47,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:47,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317294826] [2024-11-16 10:09:47,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317294826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:47,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:47,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:47,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941426513] [2024-11-16 10:09:47,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:47,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:47,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:47,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:47,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:47,249 INFO L87 Difference]: Start difference. First operand 1162 states and 1730 transitions. Second operand has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:47,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:47,823 INFO L93 Difference]: Finished difference Result 2142 states and 3188 transitions. [2024-11-16 10:09:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:47,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 382 [2024-11-16 10:09:47,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:47,827 INFO L225 Difference]: With dead ends: 2142 [2024-11-16 10:09:47,827 INFO L226 Difference]: Without dead ends: 1162 [2024-11-16 10:09:47,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:09:47,829 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 1706 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:47,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 2751 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:09:47,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-16 10:09:47,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-11-16 10:09:47,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1153 states have (on average 1.4874241110147441) internal successors, (1715), 1153 states have internal predecessors, (1715), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:47,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1729 transitions. [2024-11-16 10:09:47,850 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1729 transitions. Word has length 382 [2024-11-16 10:09:47,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:47,851 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1729 transitions. [2024-11-16 10:09:47,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:47,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1729 transitions. [2024-11-16 10:09:47,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2024-11-16 10:09:47,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:47,854 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:47,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 10:09:47,854 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:47,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:47,855 INFO L85 PathProgramCache]: Analyzing trace with hash -665756549, now seen corresponding path program 1 times [2024-11-16 10:09:47,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:47,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791798148] [2024-11-16 10:09:47,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:47,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:48,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:48,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:48,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:48,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:48,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:48,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:48,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:48,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:48,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791798148] [2024-11-16 10:09:48,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791798148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:48,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:48,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:48,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058965315] [2024-11-16 10:09:48,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:48,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:48,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:48,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:48,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:48,584 INFO L87 Difference]: Start difference. First operand 1162 states and 1729 transitions. Second operand has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:49,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:49,185 INFO L93 Difference]: Finished difference Result 2142 states and 3186 transitions. [2024-11-16 10:09:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:49,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 383 [2024-11-16 10:09:49,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:49,190 INFO L225 Difference]: With dead ends: 2142 [2024-11-16 10:09:49,190 INFO L226 Difference]: Without dead ends: 1162 [2024-11-16 10:09:49,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:09:49,192 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 3223 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:49,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3230 Valid, 2740 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:09:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-16 10:09:49,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-11-16 10:09:49,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1153 states have (on average 1.4865568083261058) internal successors, (1714), 1153 states have internal predecessors, (1714), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:49,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1728 transitions. [2024-11-16 10:09:49,221 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1728 transitions. Word has length 383 [2024-11-16 10:09:49,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:49,221 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1728 transitions. [2024-11-16 10:09:49,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:49,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1728 transitions. [2024-11-16 10:09:49,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-16 10:09:49,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:49,226 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:49,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 10:09:49,227 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:49,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:49,228 INFO L85 PathProgramCache]: Analyzing trace with hash 551779411, now seen corresponding path program 1 times [2024-11-16 10:09:49,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:49,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659913348] [2024-11-16 10:09:49,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:49,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:49,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:49,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:49,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:49,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:49,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:49,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:49,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:49,857 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:49,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:49,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659913348] [2024-11-16 10:09:49,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659913348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:49,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:49,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:49,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812578857] [2024-11-16 10:09:49,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:49,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:49,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:49,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:49,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:49,860 INFO L87 Difference]: Start difference. First operand 1162 states and 1728 transitions. Second operand has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:50,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:50,440 INFO L93 Difference]: Finished difference Result 2142 states and 3184 transitions. [2024-11-16 10:09:50,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:50,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 384 [2024-11-16 10:09:50,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:50,444 INFO L225 Difference]: With dead ends: 2142 [2024-11-16 10:09:50,444 INFO L226 Difference]: Without dead ends: 1162 [2024-11-16 10:09:50,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:09:50,446 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 3215 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:50,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3222 Valid, 2740 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:09:50,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-16 10:09:50,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-11-16 10:09:50,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1153 states have (on average 1.4856895056374675) internal successors, (1713), 1153 states have internal predecessors, (1713), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:50,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1727 transitions. [2024-11-16 10:09:50,465 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1727 transitions. Word has length 384 [2024-11-16 10:09:50,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:50,465 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1727 transitions. [2024-11-16 10:09:50,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:50,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1727 transitions. [2024-11-16 10:09:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-16 10:09:50,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:50,468 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:50,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 10:09:50,469 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:50,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:50,469 INFO L85 PathProgramCache]: Analyzing trace with hash -314686656, now seen corresponding path program 1 times [2024-11-16 10:09:50,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:50,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637801199] [2024-11-16 10:09:50,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:50,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:51,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:51,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:51,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:51,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:51,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:51,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:51,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:51,142 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:51,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:51,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637801199] [2024-11-16 10:09:51,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637801199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:51,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:51,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:51,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377752663] [2024-11-16 10:09:51,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:51,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:51,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:51,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:51,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:51,150 INFO L87 Difference]: Start difference. First operand 1162 states and 1727 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:51,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:51,676 INFO L93 Difference]: Finished difference Result 2142 states and 3182 transitions. [2024-11-16 10:09:51,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:51,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 385 [2024-11-16 10:09:51,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:51,683 INFO L225 Difference]: With dead ends: 2142 [2024-11-16 10:09:51,683 INFO L226 Difference]: Without dead ends: 1162 [2024-11-16 10:09:51,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:09:51,685 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 1620 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:51,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 2751 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:09:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-16 10:09:51,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-11-16 10:09:51,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1153 states have (on average 1.4848222029488292) internal successors, (1712), 1153 states have internal predecessors, (1712), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:51,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1726 transitions. [2024-11-16 10:09:51,705 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1726 transitions. Word has length 385 [2024-11-16 10:09:51,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:51,705 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1726 transitions. [2024-11-16 10:09:51,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:51,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1726 transitions. [2024-11-16 10:09:51,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-16 10:09:51,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:51,709 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:51,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 10:09:51,710 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:51,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:51,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1714570642, now seen corresponding path program 1 times [2024-11-16 10:09:51,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:51,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159047593] [2024-11-16 10:09:51,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:51,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:52,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:52,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:52,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:52,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:52,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:52,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:52,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:52,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:52,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159047593] [2024-11-16 10:09:52,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159047593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:52,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:52,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:52,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131178534] [2024-11-16 10:09:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:52,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:52,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:52,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:52,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:52,350 INFO L87 Difference]: Start difference. First operand 1162 states and 1726 transitions. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:52,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:52,928 INFO L93 Difference]: Finished difference Result 2142 states and 3180 transitions. [2024-11-16 10:09:52,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:52,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 386 [2024-11-16 10:09:52,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:52,933 INFO L225 Difference]: With dead ends: 2142 [2024-11-16 10:09:52,934 INFO L226 Difference]: Without dead ends: 1162 [2024-11-16 10:09:52,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:09:52,936 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 1616 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:52,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 2751 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:09:52,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-16 10:09:52,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-11-16 10:09:52,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1153 states have (on average 1.4839549002601908) internal successors, (1711), 1153 states have internal predecessors, (1711), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:52,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1725 transitions. [2024-11-16 10:09:52,956 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1725 transitions. Word has length 386 [2024-11-16 10:09:52,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:52,956 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1725 transitions. [2024-11-16 10:09:52,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:52,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1725 transitions. [2024-11-16 10:09:52,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-16 10:09:52,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:52,959 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:52,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 10:09:52,960 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:52,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:52,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2046855557, now seen corresponding path program 1 times [2024-11-16 10:09:52,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:52,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64764522] [2024-11-16 10:09:52,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:52,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:53,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:53,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:53,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:53,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:53,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:53,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:53,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:53,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:53,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64764522] [2024-11-16 10:09:53,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64764522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:53,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:53,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:53,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599478242] [2024-11-16 10:09:53,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:53,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:53,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:53,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:53,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:53,630 INFO L87 Difference]: Start difference. First operand 1162 states and 1725 transitions. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:54,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:54,175 INFO L93 Difference]: Finished difference Result 2142 states and 3178 transitions. [2024-11-16 10:09:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:54,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 387 [2024-11-16 10:09:54,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:54,179 INFO L225 Difference]: With dead ends: 2142 [2024-11-16 10:09:54,180 INFO L226 Difference]: Without dead ends: 1162 [2024-11-16 10:09:54,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:09:54,181 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 3043 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3050 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:54,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3050 Valid, 2740 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:09:54,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-16 10:09:54,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-11-16 10:09:54,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1153 states have (on average 1.4830875975715525) internal successors, (1710), 1153 states have internal predecessors, (1710), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:54,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1724 transitions. [2024-11-16 10:09:54,200 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1724 transitions. Word has length 387 [2024-11-16 10:09:54,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:54,200 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1724 transitions. [2024-11-16 10:09:54,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:54,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1724 transitions. [2024-11-16 10:09:54,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-11-16 10:09:54,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:54,203 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:54,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 10:09:54,204 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:54,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:54,204 INFO L85 PathProgramCache]: Analyzing trace with hash 519265043, now seen corresponding path program 1 times [2024-11-16 10:09:54,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:54,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771563792] [2024-11-16 10:09:54,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:54,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:55,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:55,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:55,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:55,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:55,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:55,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:55,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:55,217 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:55,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:55,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771563792] [2024-11-16 10:09:55,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771563792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:55,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:55,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:09:55,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616551318] [2024-11-16 10:09:55,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:55,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:09:55,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:55,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:09:55,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:09:55,220 INFO L87 Difference]: Start difference. First operand 1162 states and 1724 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:55,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:55,737 INFO L93 Difference]: Finished difference Result 2141 states and 3175 transitions. [2024-11-16 10:09:55,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:55,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 388 [2024-11-16 10:09:55,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:55,741 INFO L225 Difference]: With dead ends: 2141 [2024-11-16 10:09:55,741 INFO L226 Difference]: Without dead ends: 1161 [2024-11-16 10:09:55,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:55,743 INFO L432 NwaCegarLoop]: 1393 mSDtfsCounter, 1523 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:55,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 2788 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:09:55,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2024-11-16 10:09:55,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1161. [2024-11-16 10:09:55,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1152 states have (on average 1.4817708333333333) internal successors, (1707), 1152 states have internal predecessors, (1707), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:55,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1721 transitions. [2024-11-16 10:09:55,766 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1721 transitions. Word has length 388 [2024-11-16 10:09:55,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:55,766 INFO L471 AbstractCegarLoop]: Abstraction has 1161 states and 1721 transitions. [2024-11-16 10:09:55,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:55,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1721 transitions. [2024-11-16 10:09:55,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-16 10:09:55,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:55,770 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:55,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 10:09:55,770 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:55,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:55,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1731375168, now seen corresponding path program 1 times [2024-11-16 10:09:55,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:55,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695787985] [2024-11-16 10:09:55,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:55,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:56,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:56,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:56,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:56,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:56,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:56,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:56,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:56,402 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:56,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:56,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695787985] [2024-11-16 10:09:56,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695787985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:56,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:56,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:56,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090665110] [2024-11-16 10:09:56,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:56,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:56,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:56,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:56,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:56,405 INFO L87 Difference]: Start difference. First operand 1161 states and 1721 transitions. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:57,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:57,096 INFO L93 Difference]: Finished difference Result 2142 states and 3172 transitions. [2024-11-16 10:09:57,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:09:57,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 389 [2024-11-16 10:09:57,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:57,101 INFO L225 Difference]: With dead ends: 2142 [2024-11-16 10:09:57,101 INFO L226 Difference]: Without dead ends: 1161 [2024-11-16 10:09:57,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:09:57,103 INFO L432 NwaCegarLoop]: 1427 mSDtfsCounter, 1527 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 4255 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:57,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 4255 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 10:09:57,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2024-11-16 10:09:57,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1161. [2024-11-16 10:09:57,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1152 states have (on average 1.4809027777777777) internal successors, (1706), 1152 states have internal predecessors, (1706), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:57,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1720 transitions. [2024-11-16 10:09:57,124 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1720 transitions. Word has length 389 [2024-11-16 10:09:57,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:57,124 INFO L471 AbstractCegarLoop]: Abstraction has 1161 states and 1720 transitions. [2024-11-16 10:09:57,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:57,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1720 transitions. [2024-11-16 10:09:57,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-16 10:09:57,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:57,128 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:57,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 10:09:57,128 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:57,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:57,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1509478674, now seen corresponding path program 1 times [2024-11-16 10:09:57,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:57,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781556436] [2024-11-16 10:09:57,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:57,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:57,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:57,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:57,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:57,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:57,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:57,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:57,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:57,875 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:57,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:57,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781556436] [2024-11-16 10:09:57,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781556436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:57,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:57,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:57,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231894580] [2024-11-16 10:09:57,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:57,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:57,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:57,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:57,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:57,883 INFO L87 Difference]: Start difference. First operand 1161 states and 1720 transitions. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:58,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:58,350 INFO L93 Difference]: Finished difference Result 2140 states and 3168 transitions. [2024-11-16 10:09:58,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:58,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 390 [2024-11-16 10:09:58,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:58,356 INFO L225 Difference]: With dead ends: 2140 [2024-11-16 10:09:58,356 INFO L226 Difference]: Without dead ends: 1161 [2024-11-16 10:09:58,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:09:58,358 INFO L432 NwaCegarLoop]: 1393 mSDtfsCounter, 3051 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3058 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:58,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3058 Valid, 2788 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:09:58,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2024-11-16 10:09:58,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1161. [2024-11-16 10:09:58,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1152 states have (on average 1.4800347222222223) internal successors, (1705), 1152 states have internal predecessors, (1705), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1719 transitions. [2024-11-16 10:09:58,392 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1719 transitions. Word has length 390 [2024-11-16 10:09:58,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:58,392 INFO L471 AbstractCegarLoop]: Abstraction has 1161 states and 1719 transitions. [2024-11-16 10:09:58,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:58,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1719 transitions. [2024-11-16 10:09:58,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-16 10:09:58,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:58,398 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:58,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 10:09:58,399 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:58,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:58,399 INFO L85 PathProgramCache]: Analyzing trace with hash -361914299, now seen corresponding path program 1 times [2024-11-16 10:09:58,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:58,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779355198] [2024-11-16 10:09:58,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:58,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:09:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:59,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:09:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:59,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:09:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:59,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:09:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:59,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:09:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:59,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:09:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:59,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:09:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:59,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:09:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:09:59,112 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:09:59,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:09:59,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779355198] [2024-11-16 10:09:59,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779355198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:09:59,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:09:59,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:09:59,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007016852] [2024-11-16 10:09:59,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:09:59,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:09:59,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:09:59,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:09:59,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:09:59,116 INFO L87 Difference]: Start difference. First operand 1161 states and 1719 transitions. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:59,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:09:59,666 INFO L93 Difference]: Finished difference Result 2140 states and 3166 transitions. [2024-11-16 10:09:59,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:09:59,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 391 [2024-11-16 10:09:59,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:09:59,670 INFO L225 Difference]: With dead ends: 2140 [2024-11-16 10:09:59,671 INFO L226 Difference]: Without dead ends: 1161 [2024-11-16 10:09:59,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:09:59,672 INFO L432 NwaCegarLoop]: 1393 mSDtfsCounter, 3043 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3050 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:09:59,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3050 Valid, 2788 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:09:59,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2024-11-16 10:09:59,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1161. [2024-11-16 10:09:59,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1152 states have (on average 1.4791666666666667) internal successors, (1704), 1152 states have internal predecessors, (1704), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:09:59,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1718 transitions. [2024-11-16 10:09:59,691 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1718 transitions. Word has length 391 [2024-11-16 10:09:59,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:09:59,691 INFO L471 AbstractCegarLoop]: Abstraction has 1161 states and 1718 transitions. [2024-11-16 10:09:59,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:09:59,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1718 transitions. [2024-11-16 10:09:59,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-16 10:09:59,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:09:59,695 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:09:59,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 10:09:59,696 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:09:59,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:09:59,696 INFO L85 PathProgramCache]: Analyzing trace with hash 532781075, now seen corresponding path program 1 times [2024-11-16 10:09:59,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:09:59,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824543108] [2024-11-16 10:09:59,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:09:59,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:01,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:01,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:01,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:10:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:01,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:10:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:01,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:10:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:01,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:10:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:01,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:10:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:01,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:01,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824543108] [2024-11-16 10:10:01,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824543108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:01,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:01,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:10:01,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33688943] [2024-11-16 10:10:01,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:01,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:10:01,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:01,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:10:01,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:10:01,304 INFO L87 Difference]: Start difference. First operand 1161 states and 1718 transitions. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:02,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:02,021 INFO L93 Difference]: Finished difference Result 2140 states and 3164 transitions. [2024-11-16 10:10:02,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:10:02,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 392 [2024-11-16 10:10:02,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:02,026 INFO L225 Difference]: With dead ends: 2140 [2024-11-16 10:10:02,026 INFO L226 Difference]: Without dead ends: 1161 [2024-11-16 10:10:02,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:10:02,029 INFO L432 NwaCegarLoop]: 1130 mSDtfsCounter, 1611 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:02,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 2259 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 10:10:02,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2024-11-16 10:10:02,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1161. [2024-11-16 10:10:02,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1152 states have (on average 1.4782986111111112) internal successors, (1703), 1152 states have internal predecessors, (1703), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-16 10:10:02,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1717 transitions. [2024-11-16 10:10:02,047 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1717 transitions. Word has length 392 [2024-11-16 10:10:02,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:02,047 INFO L471 AbstractCegarLoop]: Abstraction has 1161 states and 1717 transitions. [2024-11-16 10:10:02,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:02,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1717 transitions. [2024-11-16 10:10:02,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-16 10:10:02,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:02,051 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:02,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 10:10:02,052 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:02,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:02,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1707368906, now seen corresponding path program 1 times [2024-11-16 10:10:02,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:02,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319570749] [2024-11-16 10:10:02,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:02,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:03,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:03,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:03,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 10:10:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:03,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 10:10:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:03,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 10:10:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:03,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 10:10:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:03,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 10:10:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:03,481 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:03,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:03,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319570749] [2024-11-16 10:10:03,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319570749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:03,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:03,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 10:10:03,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851677986] [2024-11-16 10:10:03,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:03,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 10:10:03,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:03,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 10:10:03,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:10:03,485 INFO L87 Difference]: Start difference. First operand 1161 states and 1717 transitions. Second operand has 6 states, 6 states have (on average 60.166666666666664) internal successors, (361), 6 states have internal predecessors, (361), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:10:04,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:04,558 INFO L93 Difference]: Finished difference Result 3204 states and 4736 transitions. [2024-11-16 10:10:04,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:10:04,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.166666666666664) internal successors, (361), 6 states have internal predecessors, (361), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 393 [2024-11-16 10:10:04,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:04,567 INFO L225 Difference]: With dead ends: 3204 [2024-11-16 10:10:04,568 INFO L226 Difference]: Without dead ends: 2125 [2024-11-16 10:10:04,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:10:04,571 INFO L432 NwaCegarLoop]: 1492 mSDtfsCounter, 1493 mSDsluCounter, 5537 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 7029 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:04,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 7029 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 10:10:04,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2024-11-16 10:10:04,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 1220. [2024-11-16 10:10:04,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1209 states have (on average 1.477253928866832) internal successors, (1786), 1209 states have internal predecessors, (1786), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:04,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1804 transitions. [2024-11-16 10:10:04,597 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1804 transitions. Word has length 393 [2024-11-16 10:10:04,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:04,597 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 1804 transitions. [2024-11-16 10:10:04,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.166666666666664) internal successors, (361), 6 states have internal predecessors, (361), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:10:04,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1804 transitions. [2024-11-16 10:10:04,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-16 10:10:04,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:04,600 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:04,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 10:10:04,601 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:04,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:04,601 INFO L85 PathProgramCache]: Analyzing trace with hash 565136895, now seen corresponding path program 1 times [2024-11-16 10:10:04,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:04,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109337620] [2024-11-16 10:10:04,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:04,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:06,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:06,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:06,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 10:10:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:06,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-16 10:10:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:06,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 10:10:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:06,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 10:10:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:06,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 10:10:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:06,342 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:06,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:06,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109337620] [2024-11-16 10:10:06,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109337620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:06,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:06,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 10:10:06,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206552972] [2024-11-16 10:10:06,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:06,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 10:10:06,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:06,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 10:10:06,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:10:06,345 INFO L87 Difference]: Start difference. First operand 1220 states and 1804 transitions. Second operand has 6 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:10:07,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:07,723 INFO L93 Difference]: Finished difference Result 3104 states and 4586 transitions. [2024-11-16 10:10:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:10:07,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 394 [2024-11-16 10:10:07,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:07,730 INFO L225 Difference]: With dead ends: 3104 [2024-11-16 10:10:07,730 INFO L226 Difference]: Without dead ends: 2125 [2024-11-16 10:10:07,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:10:07,733 INFO L432 NwaCegarLoop]: 1127 mSDtfsCounter, 2990 mSDsluCounter, 3353 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3002 SdHoareTripleChecker+Valid, 4480 SdHoareTripleChecker+Invalid, 2371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:07,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3002 Valid, 4480 Invalid, 2371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 10:10:07,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2024-11-16 10:10:07,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 1221. [2024-11-16 10:10:07,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1210 states have (on average 1.4768595041322314) internal successors, (1787), 1210 states have internal predecessors, (1787), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:07,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1805 transitions. [2024-11-16 10:10:07,759 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1805 transitions. Word has length 394 [2024-11-16 10:10:07,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:07,760 INFO L471 AbstractCegarLoop]: Abstraction has 1221 states and 1805 transitions. [2024-11-16 10:10:07,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:10:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1805 transitions. [2024-11-16 10:10:07,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-16 10:10:07,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:07,763 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:07,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 10:10:07,763 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:07,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:07,764 INFO L85 PathProgramCache]: Analyzing trace with hash -607167043, now seen corresponding path program 1 times [2024-11-16 10:10:07,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:07,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870959489] [2024-11-16 10:10:07,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:07,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:09,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 10:10:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:09,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 10:10:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:09,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 10:10:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:09,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-16 10:10:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:09,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 10:10:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:09,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 10:10:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:09,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 10:10:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:09,201 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:09,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:09,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870959489] [2024-11-16 10:10:09,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870959489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:09,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:09,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:10:09,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973821369] [2024-11-16 10:10:09,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:09,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:10:09,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:09,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:10:09,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:10:09,203 INFO L87 Difference]: Start difference. First operand 1221 states and 1805 transitions. Second operand has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:10:11,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:11,021 INFO L93 Difference]: Finished difference Result 3364 states and 4973 transitions. [2024-11-16 10:10:11,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 10:10:11,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 394 [2024-11-16 10:10:11,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:11,027 INFO L225 Difference]: With dead ends: 3364 [2024-11-16 10:10:11,027 INFO L226 Difference]: Without dead ends: 2185 [2024-11-16 10:10:11,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 10:10:11,029 INFO L432 NwaCegarLoop]: 2767 mSDtfsCounter, 1503 mSDsluCounter, 11873 mSDsCounter, 0 mSdLazyCounter, 3713 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 14640 SdHoareTripleChecker+Invalid, 3727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:11,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 14640 Invalid, 3727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3713 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 10:10:11,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2024-11-16 10:10:11,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 1221. [2024-11-16 10:10:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1210 states have (on average 1.4760330578512397) internal successors, (1786), 1210 states have internal predecessors, (1786), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:11,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1804 transitions. [2024-11-16 10:10:11,057 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1804 transitions. Word has length 394 [2024-11-16 10:10:11,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:11,057 INFO L471 AbstractCegarLoop]: Abstraction has 1221 states and 1804 transitions. [2024-11-16 10:10:11,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:10:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1804 transitions. [2024-11-16 10:10:11,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-16 10:10:11,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:11,061 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:11,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 10:10:11,061 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:11,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:11,062 INFO L85 PathProgramCache]: Analyzing trace with hash -788627042, now seen corresponding path program 1 times [2024-11-16 10:10:11,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:11,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940053170] [2024-11-16 10:10:11,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:11,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:12,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:12,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:12,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 10:10:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:12,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 10:10:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:12,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 10:10:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:12,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-16 10:10:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:12,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 10:10:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:12,321 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:12,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:12,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940053170] [2024-11-16 10:10:12,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940053170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:12,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:12,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:10:12,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032006778] [2024-11-16 10:10:12,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:12,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:10:12,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:12,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:10:12,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:10:12,324 INFO L87 Difference]: Start difference. First operand 1221 states and 1804 transitions. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:12,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:12,753 INFO L93 Difference]: Finished difference Result 2200 states and 3248 transitions. [2024-11-16 10:10:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:10:12,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 395 [2024-11-16 10:10:12,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:12,758 INFO L225 Difference]: With dead ends: 2200 [2024-11-16 10:10:12,758 INFO L226 Difference]: Without dead ends: 1221 [2024-11-16 10:10:12,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:12,760 INFO L432 NwaCegarLoop]: 1391 mSDtfsCounter, 1517 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:12,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 2784 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:10:12,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2024-11-16 10:10:12,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1221. [2024-11-16 10:10:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1210 states have (on average 1.475206611570248) internal successors, (1785), 1210 states have internal predecessors, (1785), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:12,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1803 transitions. [2024-11-16 10:10:12,780 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1803 transitions. Word has length 395 [2024-11-16 10:10:12,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:12,781 INFO L471 AbstractCegarLoop]: Abstraction has 1221 states and 1803 transitions. [2024-11-16 10:10:12,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:12,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1803 transitions. [2024-11-16 10:10:12,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-16 10:10:12,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:12,784 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:12,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 10:10:12,784 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:12,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:12,785 INFO L85 PathProgramCache]: Analyzing trace with hash 60872102, now seen corresponding path program 1 times [2024-11-16 10:10:12,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:12,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738960056] [2024-11-16 10:10:12,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:12,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:13,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:13,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:13,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 10:10:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:13,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 10:10:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:13,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 10:10:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:13,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-16 10:10:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:13,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 10:10:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:13,745 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:13,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:13,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738960056] [2024-11-16 10:10:13,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738960056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:13,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:13,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:10:13,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200627955] [2024-11-16 10:10:13,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:13,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:10:13,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:13,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:10:13,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:10:13,750 INFO L87 Difference]: Start difference. First operand 1221 states and 1803 transitions. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:14,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:14,139 INFO L93 Difference]: Finished difference Result 2200 states and 3246 transitions. [2024-11-16 10:10:14,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:10:14,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 396 [2024-11-16 10:10:14,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:14,142 INFO L225 Difference]: With dead ends: 2200 [2024-11-16 10:10:14,142 INFO L226 Difference]: Without dead ends: 1221 [2024-11-16 10:10:14,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:14,143 INFO L432 NwaCegarLoop]: 1391 mSDtfsCounter, 1429 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:14,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 2784 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:10:14,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2024-11-16 10:10:14,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1221. [2024-11-16 10:10:14,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1210 states have (on average 1.4743801652892563) internal successors, (1784), 1210 states have internal predecessors, (1784), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:14,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1802 transitions. [2024-11-16 10:10:14,163 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1802 transitions. Word has length 396 [2024-11-16 10:10:14,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:14,164 INFO L471 AbstractCegarLoop]: Abstraction has 1221 states and 1802 transitions. [2024-11-16 10:10:14,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:14,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1802 transitions. [2024-11-16 10:10:14,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-11-16 10:10:14,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:14,167 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:14,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 10:10:14,168 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:14,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:14,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1464200320, now seen corresponding path program 1 times [2024-11-16 10:10:14,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:14,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456560618] [2024-11-16 10:10:14,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:14,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:15,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:15,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:15,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 10:10:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:15,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 10:10:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:15,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 10:10:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:15,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-16 10:10:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:15,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 10:10:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:15,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:15,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456560618] [2024-11-16 10:10:15,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456560618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:15,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:15,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:10:15,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164046744] [2024-11-16 10:10:15,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:15,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:10:15,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:15,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:10:15,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:15,443 INFO L87 Difference]: Start difference. First operand 1221 states and 1802 transitions. Second operand has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:10:16,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:16,406 INFO L93 Difference]: Finished difference Result 2204 states and 3250 transitions. [2024-11-16 10:10:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:10:16,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 397 [2024-11-16 10:10:16,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:16,410 INFO L225 Difference]: With dead ends: 2204 [2024-11-16 10:10:16,411 INFO L226 Difference]: Without dead ends: 1225 [2024-11-16 10:10:16,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:16,412 INFO L432 NwaCegarLoop]: 1127 mSDtfsCounter, 1635 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 3360 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:16,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1637 Valid, 3360 Invalid, 1770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 10:10:16,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2024-11-16 10:10:16,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1223. [2024-11-16 10:10:16,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 1212 states have (on average 1.4735973597359735) internal successors, (1786), 1212 states have internal predecessors, (1786), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:16,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1804 transitions. [2024-11-16 10:10:16,437 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1804 transitions. Word has length 397 [2024-11-16 10:10:16,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:16,438 INFO L471 AbstractCegarLoop]: Abstraction has 1223 states and 1804 transitions. [2024-11-16 10:10:16,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:10:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1804 transitions. [2024-11-16 10:10:16,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-16 10:10:16,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:16,442 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:16,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 10:10:16,443 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:16,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:16,443 INFO L85 PathProgramCache]: Analyzing trace with hash 520980518, now seen corresponding path program 1 times [2024-11-16 10:10:16,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:16,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335263738] [2024-11-16 10:10:16,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:16,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:17,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:17,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:17,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 10:10:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:17,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 10:10:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:17,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 10:10:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:17,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-16 10:10:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:17,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 10:10:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:17,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:17,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335263738] [2024-11-16 10:10:17,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335263738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:17,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:17,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:10:17,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137566789] [2024-11-16 10:10:17,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:17,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:10:17,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:17,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:10:17,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:17,781 INFO L87 Difference]: Start difference. First operand 1223 states and 1804 transitions. Second operand has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:18,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:18,660 INFO L93 Difference]: Finished difference Result 2206 states and 3251 transitions. [2024-11-16 10:10:18,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:10:18,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 398 [2024-11-16 10:10:18,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:18,663 INFO L225 Difference]: With dead ends: 2206 [2024-11-16 10:10:18,663 INFO L226 Difference]: Without dead ends: 1225 [2024-11-16 10:10:18,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:18,665 INFO L432 NwaCegarLoop]: 1127 mSDtfsCounter, 1522 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 3371 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:18,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 3371 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 10:10:18,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2024-11-16 10:10:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1224. [2024-11-16 10:10:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1213 states have (on average 1.47320692497939) internal successors, (1787), 1213 states have internal predecessors, (1787), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:18,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1805 transitions. [2024-11-16 10:10:18,686 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1805 transitions. Word has length 398 [2024-11-16 10:10:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:18,687 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1805 transitions. [2024-11-16 10:10:18,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1805 transitions. [2024-11-16 10:10:18,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-16 10:10:18,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:18,690 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:18,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 10:10:18,691 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:18,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:18,691 INFO L85 PathProgramCache]: Analyzing trace with hash 977961419, now seen corresponding path program 1 times [2024-11-16 10:10:18,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:18,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200859116] [2024-11-16 10:10:18,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:18,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:19,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:19,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:19,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 10:10:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:19,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 10:10:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:19,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 10:10:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:19,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-16 10:10:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:19,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 10:10:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:19,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:19,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200859116] [2024-11-16 10:10:19,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200859116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:19,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:19,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:10:19,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959195612] [2024-11-16 10:10:19,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:19,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:10:19,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:19,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:10:19,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:10:19,521 INFO L87 Difference]: Start difference. First operand 1224 states and 1805 transitions. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:10:20,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:20,223 INFO L93 Difference]: Finished difference Result 2206 states and 3250 transitions. [2024-11-16 10:10:20,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:10:20,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 398 [2024-11-16 10:10:20,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:20,226 INFO L225 Difference]: With dead ends: 2206 [2024-11-16 10:10:20,226 INFO L226 Difference]: Without dead ends: 1224 [2024-11-16 10:10:20,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:10:20,228 INFO L432 NwaCegarLoop]: 1128 mSDtfsCounter, 1628 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:20,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 2255 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 10:10:20,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-16 10:10:20,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2024-11-16 10:10:20,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1213 states have (on average 1.4723825226710634) internal successors, (1786), 1213 states have internal predecessors, (1786), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:20,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1804 transitions. [2024-11-16 10:10:20,251 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1804 transitions. Word has length 398 [2024-11-16 10:10:20,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:20,251 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1804 transitions. [2024-11-16 10:10:20,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 10:10:20,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1804 transitions. [2024-11-16 10:10:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-16 10:10:20,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:20,255 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:20,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 10:10:20,255 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:20,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:20,256 INFO L85 PathProgramCache]: Analyzing trace with hash -162750345, now seen corresponding path program 1 times [2024-11-16 10:10:20,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:20,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465482890] [2024-11-16 10:10:20,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:20,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:21,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:21,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:21,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 10:10:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:21,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 10:10:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:21,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 10:10:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:21,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-16 10:10:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:21,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 10:10:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:21,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:21,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465482890] [2024-11-16 10:10:21,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465482890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:21,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:21,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:10:21,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294108140] [2024-11-16 10:10:21,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:21,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:10:21,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:21,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:10:21,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:10:21,116 INFO L87 Difference]: Start difference. First operand 1224 states and 1804 transitions. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:21,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:21,693 INFO L93 Difference]: Finished difference Result 2206 states and 3248 transitions. [2024-11-16 10:10:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:10:21,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 399 [2024-11-16 10:10:21,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:21,697 INFO L225 Difference]: With dead ends: 2206 [2024-11-16 10:10:21,697 INFO L226 Difference]: Without dead ends: 1224 [2024-11-16 10:10:21,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:21,699 INFO L432 NwaCegarLoop]: 1359 mSDtfsCounter, 1505 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:21,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 2720 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:10:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-16 10:10:21,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2024-11-16 10:10:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1213 states have (on average 1.471558120362737) internal successors, (1785), 1213 states have internal predecessors, (1785), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1803 transitions. [2024-11-16 10:10:21,719 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1803 transitions. Word has length 399 [2024-11-16 10:10:21,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:21,720 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1803 transitions. [2024-11-16 10:10:21,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:21,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1803 transitions. [2024-11-16 10:10:21,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-16 10:10:21,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:21,723 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:21,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 10:10:21,723 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:21,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:21,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1247021747, now seen corresponding path program 1 times [2024-11-16 10:10:21,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:21,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651500061] [2024-11-16 10:10:21,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:21,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:22,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:22,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:22,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 10:10:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:22,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 10:10:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:22,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 10:10:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:22,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-16 10:10:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:22,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 10:10:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:22,585 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:22,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:22,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651500061] [2024-11-16 10:10:22,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651500061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:22,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:22,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:10:22,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301899695] [2024-11-16 10:10:22,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:22,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:10:22,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:22,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:10:22,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:22,588 INFO L87 Difference]: Start difference. First operand 1224 states and 1803 transitions. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:23,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:23,113 INFO L93 Difference]: Finished difference Result 2206 states and 3246 transitions. [2024-11-16 10:10:23,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:10:23,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 400 [2024-11-16 10:10:23,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:23,116 INFO L225 Difference]: With dead ends: 2206 [2024-11-16 10:10:23,116 INFO L226 Difference]: Without dead ends: 1224 [2024-11-16 10:10:23,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:10:23,118 INFO L432 NwaCegarLoop]: 1359 mSDtfsCounter, 3002 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3002 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:23,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3002 Valid, 2720 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:10:23,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-16 10:10:23,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2024-11-16 10:10:23,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1213 states have (on average 1.4707337180544104) internal successors, (1784), 1213 states have internal predecessors, (1784), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1802 transitions. [2024-11-16 10:10:23,146 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1802 transitions. Word has length 400 [2024-11-16 10:10:23,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:23,147 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1802 transitions. [2024-11-16 10:10:23,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:23,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1802 transitions. [2024-11-16 10:10:23,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-16 10:10:23,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:23,150 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:23,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 10:10:23,151 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:23,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:23,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1673299325, now seen corresponding path program 1 times [2024-11-16 10:10:23,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:23,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4250301] [2024-11-16 10:10:23,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:23,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:23,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:23,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:23,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 10:10:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:23,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 10:10:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:23,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 10:10:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:23,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-16 10:10:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:23,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 10:10:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:23,882 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:23,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:23,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4250301] [2024-11-16 10:10:23,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4250301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:23,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:23,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:10:23,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196577976] [2024-11-16 10:10:23,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:23,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:10:23,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:23,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:10:23,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:23,884 INFO L87 Difference]: Start difference. First operand 1224 states and 1802 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:24,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:24,388 INFO L93 Difference]: Finished difference Result 2206 states and 3244 transitions. [2024-11-16 10:10:24,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:10:24,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 401 [2024-11-16 10:10:24,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:24,390 INFO L225 Difference]: With dead ends: 2206 [2024-11-16 10:10:24,391 INFO L226 Difference]: Without dead ends: 1224 [2024-11-16 10:10:24,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:10:24,392 INFO L432 NwaCegarLoop]: 1359 mSDtfsCounter, 2996 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:24,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 2720 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:10:24,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-16 10:10:24,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2024-11-16 10:10:24,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1213 states have (on average 1.469909315746084) internal successors, (1783), 1213 states have internal predecessors, (1783), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:24,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1801 transitions. [2024-11-16 10:10:24,411 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1801 transitions. Word has length 401 [2024-11-16 10:10:24,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:24,412 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1801 transitions. [2024-11-16 10:10:24,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:24,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1801 transitions. [2024-11-16 10:10:24,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-16 10:10:24,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:24,415 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:24,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 10:10:24,415 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:24,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:24,415 INFO L85 PathProgramCache]: Analyzing trace with hash 109666035, now seen corresponding path program 1 times [2024-11-16 10:10:24,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:24,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044785683] [2024-11-16 10:10:24,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:24,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:25,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:25,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:25,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 10:10:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:25,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 10:10:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:25,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 10:10:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:25,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-16 10:10:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:25,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 10:10:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:25,198 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:25,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:25,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044785683] [2024-11-16 10:10:25,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044785683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:25,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:25,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:10:25,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707000118] [2024-11-16 10:10:25,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:25,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:10:25,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:25,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:10:25,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:25,201 INFO L87 Difference]: Start difference. First operand 1224 states and 1801 transitions. Second operand has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:25,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:25,731 INFO L93 Difference]: Finished difference Result 2206 states and 3242 transitions. [2024-11-16 10:10:25,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:10:25,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 402 [2024-11-16 10:10:25,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:25,733 INFO L225 Difference]: With dead ends: 2206 [2024-11-16 10:10:25,733 INFO L226 Difference]: Without dead ends: 1224 [2024-11-16 10:10:25,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:10:25,735 INFO L432 NwaCegarLoop]: 1359 mSDtfsCounter, 1501 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:25,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 2731 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:10:25,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-16 10:10:25,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2024-11-16 10:10:25,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1213 states have (on average 1.4690849134377577) internal successors, (1782), 1213 states have internal predecessors, (1782), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:25,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1800 transitions. [2024-11-16 10:10:25,753 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1800 transitions. Word has length 402 [2024-11-16 10:10:25,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:25,753 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1800 transitions. [2024-11-16 10:10:25,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:25,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1800 transitions. [2024-11-16 10:10:25,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-16 10:10:25,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:25,756 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:25,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 10:10:25,757 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:25,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:25,757 INFO L85 PathProgramCache]: Analyzing trace with hash -987900621, now seen corresponding path program 1 times [2024-11-16 10:10:25,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:25,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442674866] [2024-11-16 10:10:25,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:25,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:26,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:26,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:26,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 10:10:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:26,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 10:10:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:26,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 10:10:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:26,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-16 10:10:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:26,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 10:10:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:26,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:26,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442674866] [2024-11-16 10:10:26,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442674866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:26,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:26,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:10:26,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845677240] [2024-11-16 10:10:26,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:26,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:10:26,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:26,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:10:26,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:26,725 INFO L87 Difference]: Start difference. First operand 1224 states and 1800 transitions. Second operand has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:27,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:27,251 INFO L93 Difference]: Finished difference Result 2206 states and 3240 transitions. [2024-11-16 10:10:27,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:10:27,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 403 [2024-11-16 10:10:27,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:27,254 INFO L225 Difference]: With dead ends: 2206 [2024-11-16 10:10:27,254 INFO L226 Difference]: Without dead ends: 1224 [2024-11-16 10:10:27,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:10:27,256 INFO L432 NwaCegarLoop]: 1359 mSDtfsCounter, 2906 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2906 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:27,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2906 Valid, 2720 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:10:27,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-16 10:10:27,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2024-11-16 10:10:27,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1213 states have (on average 1.4682605111294311) internal successors, (1781), 1213 states have internal predecessors, (1781), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:27,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1799 transitions. [2024-11-16 10:10:27,275 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1799 transitions. Word has length 403 [2024-11-16 10:10:27,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:27,275 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1799 transitions. [2024-11-16 10:10:27,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:27,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1799 transitions. [2024-11-16 10:10:27,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-16 10:10:27,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:27,278 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:27,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 10:10:27,279 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:27,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:27,279 INFO L85 PathProgramCache]: Analyzing trace with hash 541009089, now seen corresponding path program 1 times [2024-11-16 10:10:27,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:27,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102713762] [2024-11-16 10:10:27,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:27,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:28,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 10:10:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:28,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 10:10:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:28,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 10:10:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:28,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 10:10:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:28,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 10:10:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:28,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-16 10:10:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:28,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 10:10:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:10:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 10:10:28,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:10:28,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102713762] [2024-11-16 10:10:28,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102713762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:10:28,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:10:28,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:10:28,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142831036] [2024-11-16 10:10:28,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:10:28,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:10:28,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:10:28,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:10:28,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:10:28,063 INFO L87 Difference]: Start difference. First operand 1224 states and 1799 transitions. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:28,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:10:28,574 INFO L93 Difference]: Finished difference Result 2206 states and 3238 transitions. [2024-11-16 10:10:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:10:28,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 404 [2024-11-16 10:10:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:10:28,577 INFO L225 Difference]: With dead ends: 2206 [2024-11-16 10:10:28,577 INFO L226 Difference]: Without dead ends: 1224 [2024-11-16 10:10:28,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:10:28,580 INFO L432 NwaCegarLoop]: 1359 mSDtfsCounter, 2900 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2900 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:10:28,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2900 Valid, 2720 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:10:28,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-16 10:10:28,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2024-11-16 10:10:28,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1213 states have (on average 1.4674361088211048) internal successors, (1780), 1213 states have internal predecessors, (1780), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 10:10:28,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1798 transitions. [2024-11-16 10:10:28,606 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1798 transitions. Word has length 404 [2024-11-16 10:10:28,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:10:28,606 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1798 transitions. [2024-11-16 10:10:28,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 10:10:28,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1798 transitions. [2024-11-16 10:10:28,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-16 10:10:28,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:10:28,610 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:10:28,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 10:10:28,610 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:10:28,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:10:28,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1634444025, now seen corresponding path program 1 times [2024-11-16 10:10:28,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:10:28,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855081908] [2024-11-16 10:10:28,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:10:28,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:10:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat