./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 18f661507baa99a6860677d13bda352b5068a9ab896ed00822695643614eba74 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:15:49,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:15:49,909 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 11:15:49,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:15:49,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:15:49,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:15:49,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:15:49,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:15:49,937 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:15:49,939 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:15:49,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:15:49,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:15:49,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:15:49,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:15:49,940 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:15:49,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:15:49,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:15:49,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:15:49,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 11:15:49,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:15:49,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:15:49,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:15:49,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:15:49,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:15:49,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:15:49,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:15:49,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:15:49,944 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:15:49,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:15:49,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:15:49,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:15:49,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:15:49,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:15:49,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:15:49,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:15:49,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:15:49,946 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 11:15:49,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 11:15:49,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:15:49,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:15:49,947 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:15:49,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:15:49,948 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18f661507baa99a6860677d13bda352b5068a9ab896ed00822695643614eba74 [2024-10-14 11:15:50,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:15:50,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:15:50,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:15:50,162 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:15:50,162 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:15:50,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i [2024-10-14 11:15:51,368 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:15:51,522 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:15:51,522 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i [2024-10-14 11:15:51,537 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26977dd8a/78219ede102b4fdc8a1d6dcc5c1f2bde/FLAGec94f2034 [2024-10-14 11:15:51,923 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26977dd8a/78219ede102b4fdc8a1d6dcc5c1f2bde [2024-10-14 11:15:51,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:15:51,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:15:51,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:15:51,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:15:51,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:15:51,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:51" (1/1) ... [2024-10-14 11:15:51,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@898dcd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:51, skipping insertion in model container [2024-10-14 11:15:51,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:51" (1/1) ... [2024-10-14 11:15:51,963 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:15:52,085 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i[916,929] [2024-10-14 11:15:52,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:15:52,218 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:15:52,229 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i[916,929] [2024-10-14 11:15:52,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:15:52,288 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:15:52,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52 WrapperNode [2024-10-14 11:15:52,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:15:52,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:15:52,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:15:52,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:15:52,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,347 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 262 [2024-10-14 11:15:52,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:15:52,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:15:52,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:15:52,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:15:52,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,361 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,393 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 11:15:52,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:15:52,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:15:52,435 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:15:52,436 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:15:52,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2024-10-14 11:15:52,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:15:52,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:15:52,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 11:15:52,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 11:15:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:15:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:15:52,505 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:15:52,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 11:15:52,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:15:52,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:15:52,585 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:15:52,587 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:15:53,017 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-10-14 11:15:53,017 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:15:53,055 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:15:53,055 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:15:53,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:53 BoogieIcfgContainer [2024-10-14 11:15:53,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:15:53,058 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:15:53,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:15:53,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:15:53,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:15:51" (1/3) ... [2024-10-14 11:15:53,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6f07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:53, skipping insertion in model container [2024-10-14 11:15:53,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (2/3) ... [2024-10-14 11:15:53,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6f07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:53, skipping insertion in model container [2024-10-14 11:15:53,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:53" (3/3) ... [2024-10-14 11:15:53,064 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-59.i [2024-10-14 11:15:53,077 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:15:53,077 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:15:53,124 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:15:53,129 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;@54beb1e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:15:53,129 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:15:53,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 80 states have (on average 1.5625) internal successors, (125), 81 states have internal predecessors, (125), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-14 11:15:53,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 11:15:53,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:15:53,142 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:15:53,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:15:53,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:15:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash -474011608, now seen corresponding path program 1 times [2024-10-14 11:15:53,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:15:53,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211441696] [2024-10-14 11:15:53,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:15:53,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:15:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:15:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:15:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:15:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:15:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:15:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:15:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:15:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:15:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:15:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:15:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:15:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:15:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:15:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:15:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:15:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:15:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:15:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:15:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:15:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:15:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:15:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,467 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:15:53,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:15:53,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211441696] [2024-10-14 11:15:53,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211441696] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:15:53,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:15:53,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:15:53,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817507100] [2024-10-14 11:15:53,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:15:53,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:15:53,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:15:53,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:15:53,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:15:53,526 INFO L87 Difference]: Start difference. First operand has 104 states, 80 states have (on average 1.5625) internal successors, (125), 81 states have internal predecessors, (125), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 11:15:53,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:15:53,608 INFO L93 Difference]: Finished difference Result 207 states and 354 transitions. [2024-10-14 11:15:53,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:15:53,612 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 144 [2024-10-14 11:15:53,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:15:53,622 INFO L225 Difference]: With dead ends: 207 [2024-10-14 11:15:53,622 INFO L226 Difference]: Without dead ends: 102 [2024-10-14 11:15:53,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:15:53,630 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:15:53,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:15:53,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-10-14 11:15:53,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-10-14 11:15:53,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 79 states have internal predecessors, (119), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-14 11:15:53,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 161 transitions. [2024-10-14 11:15:53,671 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 161 transitions. Word has length 144 [2024-10-14 11:15:53,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:15:53,671 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 161 transitions. [2024-10-14 11:15:53,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 11:15:53,672 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 161 transitions. [2024-10-14 11:15:53,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 11:15:53,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:15:53,674 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:15:53,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 11:15:53,674 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:15:53,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:15:53,675 INFO L85 PathProgramCache]: Analyzing trace with hash 890227490, now seen corresponding path program 1 times [2024-10-14 11:15:53,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:15:53,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719808821] [2024-10-14 11:15:53,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:15:53,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:15:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:15:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:15:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:15:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:15:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:15:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:15:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:15:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:15:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:15:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:15:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:15:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:15:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:15:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:15:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:15:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:15:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:15:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:15:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:15:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:15:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:15:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:15:53,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:15:53,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719808821] [2024-10-14 11:15:53,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719808821] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:15:53,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:15:53,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 11:15:53,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418758753] [2024-10-14 11:15:53,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:15:53,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 11:15:53,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:15:53,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 11:15:53,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:15:53,928 INFO L87 Difference]: Start difference. First operand 102 states and 161 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:54,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:15:54,021 INFO L93 Difference]: Finished difference Result 301 states and 475 transitions. [2024-10-14 11:15:54,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 11:15:54,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 144 [2024-10-14 11:15:54,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:15:54,027 INFO L225 Difference]: With dead ends: 301 [2024-10-14 11:15:54,027 INFO L226 Difference]: Without dead ends: 200 [2024-10-14 11:15:54,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:15:54,031 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 144 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:15:54,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 371 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:15:54,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-10-14 11:15:54,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2024-10-14 11:15:54,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 153 states have (on average 1.4705882352941178) internal successors, (225), 153 states have internal predecessors, (225), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 11:15:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 309 transitions. [2024-10-14 11:15:54,060 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 309 transitions. Word has length 144 [2024-10-14 11:15:54,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:15:54,060 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 309 transitions. [2024-10-14 11:15:54,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:54,061 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 309 transitions. [2024-10-14 11:15:54,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 11:15:54,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:15:54,063 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:15:54,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 11:15:54,063 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:15:54,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:15:54,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1599301472, now seen corresponding path program 1 times [2024-10-14 11:15:54,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:15:54,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621894740] [2024-10-14 11:15:54,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:15:54,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:15:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:15:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:15:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:15:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:15:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:15:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:15:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:15:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:15:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:15:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:15:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:15:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:15:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:15:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:15:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:15:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:15:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:15:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:15:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:15:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:15:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:15:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:15:54,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:15:54,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621894740] [2024-10-14 11:15:54,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621894740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:15:54,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:15:54,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 11:15:54,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268081624] [2024-10-14 11:15:54,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:15:54,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 11:15:54,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:15:54,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 11:15:54,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:15:54,211 INFO L87 Difference]: Start difference. First operand 198 states and 309 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:54,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:15:54,287 INFO L93 Difference]: Finished difference Result 398 states and 620 transitions. [2024-10-14 11:15:54,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 11:15:54,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 144 [2024-10-14 11:15:54,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:15:54,290 INFO L225 Difference]: With dead ends: 398 [2024-10-14 11:15:54,290 INFO L226 Difference]: Without dead ends: 201 [2024-10-14 11:15:54,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:15:54,299 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 140 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:15:54,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 340 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:15:54,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-14 11:15:54,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 199. [2024-10-14 11:15:54,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 154 states have (on average 1.4285714285714286) internal successors, (220), 154 states have internal predecessors, (220), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 11:15:54,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 304 transitions. [2024-10-14 11:15:54,361 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 304 transitions. Word has length 144 [2024-10-14 11:15:54,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:15:54,362 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 304 transitions. [2024-10-14 11:15:54,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:54,370 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 304 transitions. [2024-10-14 11:15:54,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-14 11:15:54,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:15:54,372 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:15:54,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 11:15:54,373 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:15:54,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:15:54,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1853511272, now seen corresponding path program 1 times [2024-10-14 11:15:54,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:15:54,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432139812] [2024-10-14 11:15:54,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:15:54,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:15:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:15:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:15:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:15:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:15:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:15:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:15:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:15:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:15:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:15:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:15:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:15:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:15:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:15:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:15:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:15:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:15:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:15:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:15:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:15:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:15:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:15:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:15:54,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:15:54,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432139812] [2024-10-14 11:15:54,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432139812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:15:54,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:15:54,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 11:15:54,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556284233] [2024-10-14 11:15:54,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:15:54,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 11:15:54,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:15:54,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 11:15:54,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:15:54,634 INFO L87 Difference]: Start difference. First operand 199 states and 304 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:54,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:15:54,693 INFO L93 Difference]: Finished difference Result 397 states and 607 transitions. [2024-10-14 11:15:54,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 11:15:54,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 145 [2024-10-14 11:15:54,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:15:54,696 INFO L225 Difference]: With dead ends: 397 [2024-10-14 11:15:54,696 INFO L226 Difference]: Without dead ends: 199 [2024-10-14 11:15:54,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:15:54,699 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 2 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:15:54,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 276 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:15:54,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-10-14 11:15:54,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2024-10-14 11:15:54,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 154 states have (on average 1.4155844155844155) internal successors, (218), 154 states have internal predecessors, (218), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 11:15:54,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 302 transitions. [2024-10-14 11:15:54,714 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 302 transitions. Word has length 145 [2024-10-14 11:15:54,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:15:54,714 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 302 transitions. [2024-10-14 11:15:54,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 302 transitions. [2024-10-14 11:15:54,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-14 11:15:54,716 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:15:54,716 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:15:54,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 11:15:54,716 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:15:54,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:15:54,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1004340745, now seen corresponding path program 1 times [2024-10-14 11:15:54,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:15:54,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758214574] [2024-10-14 11:15:54,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:15:54,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:15:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:15:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:15:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:15:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:15:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:15:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:15:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:15:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:15:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:15:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:15:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:15:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:15:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:15:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:15:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:15:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:15:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:15:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:15:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:15:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:15:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:15:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:54,968 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:15:54,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:15:54,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758214574] [2024-10-14 11:15:54,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758214574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:15:54,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:15:54,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 11:15:54,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434891932] [2024-10-14 11:15:54,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:15:54,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 11:15:54,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:15:54,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 11:15:54,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:15:54,971 INFO L87 Difference]: Start difference. First operand 199 states and 302 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:55,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:15:55,013 INFO L93 Difference]: Finished difference Result 401 states and 609 transitions. [2024-10-14 11:15:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 11:15:55,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 146 [2024-10-14 11:15:55,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:15:55,016 INFO L225 Difference]: With dead ends: 401 [2024-10-14 11:15:55,016 INFO L226 Difference]: Without dead ends: 203 [2024-10-14 11:15:55,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:15:55,017 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:15:55,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 448 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:15:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-10-14 11:15:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-10-14 11:15:55,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 158 states have (on average 1.4050632911392404) internal successors, (222), 158 states have internal predecessors, (222), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 11:15:55,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 306 transitions. [2024-10-14 11:15:55,041 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 306 transitions. Word has length 146 [2024-10-14 11:15:55,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:15:55,042 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 306 transitions. [2024-10-14 11:15:55,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:55,043 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 306 transitions. [2024-10-14 11:15:55,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-14 11:15:55,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:15:55,044 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:15:55,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 11:15:55,045 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:15:55,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:15:55,045 INFO L85 PathProgramCache]: Analyzing trace with hash 194994119, now seen corresponding path program 1 times [2024-10-14 11:15:55,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:15:55,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704828457] [2024-10-14 11:15:55,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:15:55,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:15:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:15:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:15:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:15:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:15:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:15:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:15:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:15:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:15:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:15:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:15:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:15:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:15:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:15:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:15:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:15:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:15:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:15:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:15:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:15:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:15:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:15:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:55,691 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:15:55,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:15:55,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704828457] [2024-10-14 11:15:55,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704828457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:15:55,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:15:55,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 11:15:55,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114757631] [2024-10-14 11:15:55,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:15:55,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 11:15:55,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:15:55,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 11:15:55,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:15:55,694 INFO L87 Difference]: Start difference. First operand 203 states and 306 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:55,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:15:55,952 INFO L93 Difference]: Finished difference Result 531 states and 798 transitions. [2024-10-14 11:15:55,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 11:15:55,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 146 [2024-10-14 11:15:55,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:15:55,955 INFO L225 Difference]: With dead ends: 531 [2024-10-14 11:15:55,955 INFO L226 Difference]: Without dead ends: 329 [2024-10-14 11:15:55,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:15:55,959 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 77 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:15:55,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 302 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 11:15:55,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-10-14 11:15:55,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 279. [2024-10-14 11:15:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 234 states have (on average 1.435897435897436) internal successors, (336), 234 states have internal predecessors, (336), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 11:15:55,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 420 transitions. [2024-10-14 11:15:55,986 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 420 transitions. Word has length 146 [2024-10-14 11:15:55,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:15:55,987 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 420 transitions. [2024-10-14 11:15:55,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:55,988 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 420 transitions. [2024-10-14 11:15:55,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-14 11:15:55,991 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:15:55,991 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:15:55,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 11:15:55,992 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:15:55,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:15:55,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2118222153, now seen corresponding path program 1 times [2024-10-14 11:15:55,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:15:55,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527682655] [2024-10-14 11:15:55,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:15:55,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:15:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:15:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:15:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:15:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:15:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:15:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:15:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:15:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:15:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:15:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:15:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:15:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:15:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:15:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:15:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:15:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:15:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:15:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:15:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:15:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:15:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:15:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:56,200 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:15:56,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:15:56,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527682655] [2024-10-14 11:15:56,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527682655] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:15:56,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:15:56,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 11:15:56,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411198170] [2024-10-14 11:15:56,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:15:56,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 11:15:56,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:15:56,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 11:15:56,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:15:56,202 INFO L87 Difference]: Start difference. First operand 279 states and 420 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:56,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:15:56,344 INFO L93 Difference]: Finished difference Result 872 states and 1306 transitions. [2024-10-14 11:15:56,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 11:15:56,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 146 [2024-10-14 11:15:56,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:15:56,347 INFO L225 Difference]: With dead ends: 872 [2024-10-14 11:15:56,347 INFO L226 Difference]: Without dead ends: 594 [2024-10-14 11:15:56,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:15:56,348 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 211 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:15:56,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 528 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:15:56,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-10-14 11:15:56,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 479. [2024-10-14 11:15:56,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 390 states have (on average 1.4153846153846155) internal successors, (552), 390 states have internal predecessors, (552), 84 states have call successors, (84), 4 states have call predecessors, (84), 4 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-10-14 11:15:56,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 720 transitions. [2024-10-14 11:15:56,396 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 720 transitions. Word has length 146 [2024-10-14 11:15:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:15:56,396 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 720 transitions. [2024-10-14 11:15:56,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:15:56,397 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 720 transitions. [2024-10-14 11:15:56,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 11:15:56,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:15:56,398 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:15:56,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 11:15:56,398 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:15:56,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:15:56,398 INFO L85 PathProgramCache]: Analyzing trace with hash -858319620, now seen corresponding path program 1 times [2024-10-14 11:15:56,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:15:56,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390679796] [2024-10-14 11:15:56,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:15:56,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:15:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:15:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:15:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:15:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:15:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:15:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:15:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:15:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:15:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:15:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:15:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:15:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:15:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:15:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:15:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:15:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:15:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:15:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:15:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:15:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:15:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:15:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:15:58,767 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:15:58,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:15:58,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390679796] [2024-10-14 11:15:58,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390679796] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:15:58,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:15:58,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 11:15:58,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139934639] [2024-10-14 11:15:58,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:15:58,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 11:15:58,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:15:58,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 11:15:58,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2024-10-14 11:15:58,769 INFO L87 Difference]: Start difference. First operand 479 states and 720 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:00,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:00,020 INFO L93 Difference]: Finished difference Result 851 states and 1274 transitions. [2024-10-14 11:16:00,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 11:16:00,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 151 [2024-10-14 11:16:00,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:00,026 INFO L225 Difference]: With dead ends: 851 [2024-10-14 11:16:00,026 INFO L226 Difference]: Without dead ends: 573 [2024-10-14 11:16:00,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2024-10-14 11:16:00,030 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 272 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:00,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 907 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 11:16:00,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-10-14 11:16:00,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 549. [2024-10-14 11:16:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 460 states have (on average 1.423913043478261) internal successors, (655), 460 states have internal predecessors, (655), 84 states have call successors, (84), 4 states have call predecessors, (84), 4 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-10-14 11:16:00,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 823 transitions. [2024-10-14 11:16:00,065 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 823 transitions. Word has length 151 [2024-10-14 11:16:00,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:00,065 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 823 transitions. [2024-10-14 11:16:00,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:00,066 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 823 transitions. [2024-10-14 11:16:00,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 11:16:00,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:00,067 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:00,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 11:16:00,067 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:00,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:00,068 INFO L85 PathProgramCache]: Analyzing trace with hash 523782689, now seen corresponding path program 1 times [2024-10-14 11:16:00,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:00,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774601090] [2024-10-14 11:16:00,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:00,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:00,285 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:00,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:00,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774601090] [2024-10-14 11:16:00,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774601090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:00,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:00,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 11:16:00,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327381933] [2024-10-14 11:16:00,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:00,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 11:16:00,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:00,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 11:16:00,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:16:00,287 INFO L87 Difference]: Start difference. First operand 549 states and 823 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:00,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:00,571 INFO L93 Difference]: Finished difference Result 1371 states and 2051 transitions. [2024-10-14 11:16:00,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:16:00,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 151 [2024-10-14 11:16:00,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:00,575 INFO L225 Difference]: With dead ends: 1371 [2024-10-14 11:16:00,576 INFO L226 Difference]: Without dead ends: 823 [2024-10-14 11:16:00,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:16:00,577 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 113 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:00,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 492 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 11:16:00,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-10-14 11:16:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 799. [2024-10-14 11:16:00,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 666 states have (on average 1.406906906906907) internal successors, (937), 666 states have internal predecessors, (937), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-10-14 11:16:00,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1189 transitions. [2024-10-14 11:16:00,651 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1189 transitions. Word has length 151 [2024-10-14 11:16:00,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:00,652 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1189 transitions. [2024-10-14 11:16:00,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:00,652 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1189 transitions. [2024-10-14 11:16:00,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 11:16:00,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:00,655 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:00,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 11:16:00,655 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:00,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:00,655 INFO L85 PathProgramCache]: Analyzing trace with hash -725286001, now seen corresponding path program 1 times [2024-10-14 11:16:00,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:00,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199980512] [2024-10-14 11:16:00,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:00,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:03,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:03,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199980512] [2024-10-14 11:16:03,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199980512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:03,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:03,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 11:16:03,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274843603] [2024-10-14 11:16:03,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:03,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 11:16:03,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:03,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 11:16:03,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-10-14 11:16:03,260 INFO L87 Difference]: Start difference. First operand 799 states and 1189 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:04,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:04,762 INFO L93 Difference]: Finished difference Result 1591 states and 2352 transitions. [2024-10-14 11:16:04,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 11:16:04,763 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 152 [2024-10-14 11:16:04,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:04,767 INFO L225 Difference]: With dead ends: 1591 [2024-10-14 11:16:04,767 INFO L226 Difference]: Without dead ends: 1043 [2024-10-14 11:16:04,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=199, Invalid=401, Unknown=0, NotChecked=0, Total=600 [2024-10-14 11:16:04,769 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 851 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:04,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 855 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 11:16:04,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2024-10-14 11:16:04,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 838. [2024-10-14 11:16:04,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 705 states have (on average 1.4085106382978723) internal successors, (993), 705 states have internal predecessors, (993), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-10-14 11:16:04,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1245 transitions. [2024-10-14 11:16:04,806 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1245 transitions. Word has length 152 [2024-10-14 11:16:04,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:04,806 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1245 transitions. [2024-10-14 11:16:04,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:04,807 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1245 transitions. [2024-10-14 11:16:04,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 11:16:04,809 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:04,809 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:04,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 11:16:04,809 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:04,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:04,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1981333393, now seen corresponding path program 1 times [2024-10-14 11:16:04,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:04,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453544818] [2024-10-14 11:16:04,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:04,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:07,128 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:07,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:07,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453544818] [2024-10-14 11:16:07,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453544818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:07,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:07,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-14 11:16:07,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171824904] [2024-10-14 11:16:07,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:07,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 11:16:07,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:07,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 11:16:07,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-10-14 11:16:07,130 INFO L87 Difference]: Start difference. First operand 838 states and 1245 transitions. Second operand has 20 states, 20 states have (on average 2.5) internal successors, (50), 20 states have internal predecessors, (50), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-14 11:16:09,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:09,779 INFO L93 Difference]: Finished difference Result 2587 states and 3824 transitions. [2024-10-14 11:16:09,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 11:16:09,780 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.5) internal successors, (50), 20 states have internal predecessors, (50), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 152 [2024-10-14 11:16:09,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:09,786 INFO L225 Difference]: With dead ends: 2587 [2024-10-14 11:16:09,787 INFO L226 Difference]: Without dead ends: 2000 [2024-10-14 11:16:09,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=284, Invalid=708, Unknown=0, NotChecked=0, Total=992 [2024-10-14 11:16:09,791 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 2003 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2003 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:09,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2003 Valid, 924 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 11:16:09,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2024-10-14 11:16:09,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1704. [2024-10-14 11:16:09,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1439 states have (on average 1.414176511466296) internal successors, (2035), 1439 states have internal predecessors, (2035), 252 states have call successors, (252), 12 states have call predecessors, (252), 12 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 11:16:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2539 transitions. [2024-10-14 11:16:09,867 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2539 transitions. Word has length 152 [2024-10-14 11:16:09,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:09,867 INFO L471 AbstractCegarLoop]: Abstraction has 1704 states and 2539 transitions. [2024-10-14 11:16:09,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.5) internal successors, (50), 20 states have internal predecessors, (50), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-14 11:16:09,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2539 transitions. [2024-10-14 11:16:09,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 11:16:09,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:09,869 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:09,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 11:16:09,869 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:09,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:09,870 INFO L85 PathProgramCache]: Analyzing trace with hash -28559614, now seen corresponding path program 1 times [2024-10-14 11:16:09,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:09,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115112092] [2024-10-14 11:16:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:09,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:09,962 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:09,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:09,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115112092] [2024-10-14 11:16:09,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115112092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:09,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:09,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 11:16:09,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506754626] [2024-10-14 11:16:09,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:09,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 11:16:09,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:09,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 11:16:09,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:16:09,964 INFO L87 Difference]: Start difference. First operand 1704 states and 2539 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:10,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:10,171 INFO L93 Difference]: Finished difference Result 4776 states and 7150 transitions. [2024-10-14 11:16:10,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 11:16:10,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 152 [2024-10-14 11:16:10,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:10,183 INFO L225 Difference]: With dead ends: 4776 [2024-10-14 11:16:10,183 INFO L226 Difference]: Without dead ends: 3073 [2024-10-14 11:16:10,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:16:10,187 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 114 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:10,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 284 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:16:10,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3073 states. [2024-10-14 11:16:10,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3073 to 2507. [2024-10-14 11:16:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2507 states, 2242 states have (on average 1.404549509366637) internal successors, (3149), 2242 states have internal predecessors, (3149), 252 states have call successors, (252), 12 states have call predecessors, (252), 12 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 11:16:10,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 3653 transitions. [2024-10-14 11:16:10,311 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 3653 transitions. Word has length 152 [2024-10-14 11:16:10,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:10,312 INFO L471 AbstractCegarLoop]: Abstraction has 2507 states and 3653 transitions. [2024-10-14 11:16:10,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 3653 transitions. [2024-10-14 11:16:10,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 11:16:10,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:10,314 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:10,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 11:16:10,315 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:10,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:10,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1232406687, now seen corresponding path program 1 times [2024-10-14 11:16:10,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:10,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643528261] [2024-10-14 11:16:10,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:10,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:10,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:10,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643528261] [2024-10-14 11:16:10,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643528261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:10,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:10,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 11:16:10,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138180143] [2024-10-14 11:16:10,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:10,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 11:16:10,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:10,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 11:16:10,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:16:10,413 INFO L87 Difference]: Start difference. First operand 2507 states and 3653 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:10,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:10,633 INFO L93 Difference]: Finished difference Result 6165 states and 9059 transitions. [2024-10-14 11:16:10,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:16:10,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 153 [2024-10-14 11:16:10,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:10,646 INFO L225 Difference]: With dead ends: 6165 [2024-10-14 11:16:10,647 INFO L226 Difference]: Without dead ends: 3659 [2024-10-14 11:16:10,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:16:10,653 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 120 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:10,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 478 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:16:10,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3659 states. [2024-10-14 11:16:10,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3659 to 2967. [2024-10-14 11:16:10,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2702 states have (on average 1.421539600296077) internal successors, (3841), 2702 states have internal predecessors, (3841), 252 states have call successors, (252), 12 states have call predecessors, (252), 12 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 11:16:10,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 4345 transitions. [2024-10-14 11:16:10,791 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 4345 transitions. Word has length 153 [2024-10-14 11:16:10,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:10,791 INFO L471 AbstractCegarLoop]: Abstraction has 2967 states and 4345 transitions. [2024-10-14 11:16:10,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:10,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 4345 transitions. [2024-10-14 11:16:10,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 11:16:10,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:10,794 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:10,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 11:16:10,795 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:10,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:10,795 INFO L85 PathProgramCache]: Analyzing trace with hash 2036389239, now seen corresponding path program 1 times [2024-10-14 11:16:10,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:10,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223079550] [2024-10-14 11:16:10,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:10,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,059 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:11,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:11,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223079550] [2024-10-14 11:16:11,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223079550] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:11,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:11,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 11:16:11,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236096595] [2024-10-14 11:16:11,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:11,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 11:16:11,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:11,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 11:16:11,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:16:11,061 INFO L87 Difference]: Start difference. First operand 2967 states and 4345 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:11,433 INFO L93 Difference]: Finished difference Result 7930 states and 11598 transitions. [2024-10-14 11:16:11,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:16:11,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 153 [2024-10-14 11:16:11,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:11,451 INFO L225 Difference]: With dead ends: 7930 [2024-10-14 11:16:11,451 INFO L226 Difference]: Without dead ends: 5786 [2024-10-14 11:16:11,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:16:11,457 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 442 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:11,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 517 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 11:16:11,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5786 states. [2024-10-14 11:16:11,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5786 to 5730. [2024-10-14 11:16:11,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5225 states have (on average 1.4174162679425837) internal successors, (7406), 5237 states have internal predecessors, (7406), 480 states have call successors, (480), 24 states have call predecessors, (480), 24 states have return successors, (480), 468 states have call predecessors, (480), 480 states have call successors, (480) [2024-10-14 11:16:11,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 8366 transitions. [2024-10-14 11:16:11,700 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 8366 transitions. Word has length 153 [2024-10-14 11:16:11,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:11,701 INFO L471 AbstractCegarLoop]: Abstraction has 5730 states and 8366 transitions. [2024-10-14 11:16:11,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:11,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 8366 transitions. [2024-10-14 11:16:11,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 11:16:11,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:11,704 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:11,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 11:16:11,704 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:11,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:11,705 INFO L85 PathProgramCache]: Analyzing trace with hash 681283945, now seen corresponding path program 1 times [2024-10-14 11:16:11,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:11,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676159861] [2024-10-14 11:16:11,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:11,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:11,795 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:11,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:11,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676159861] [2024-10-14 11:16:11,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676159861] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:11,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:11,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 11:16:11,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602379023] [2024-10-14 11:16:11,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:11,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 11:16:11,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:11,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 11:16:11,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:16:11,798 INFO L87 Difference]: Start difference. First operand 5730 states and 8366 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:12,319 INFO L93 Difference]: Finished difference Result 13435 states and 19572 transitions. [2024-10-14 11:16:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 11:16:12,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 153 [2024-10-14 11:16:12,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:12,358 INFO L225 Difference]: With dead ends: 13435 [2024-10-14 11:16:12,358 INFO L226 Difference]: Without dead ends: 7706 [2024-10-14 11:16:12,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:16:12,370 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 114 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:12,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 500 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 11:16:12,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7706 states. [2024-10-14 11:16:12,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7706 to 6244. [2024-10-14 11:16:12,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6244 states, 5739 states have (on average 1.4068653075448685) internal successors, (8074), 5751 states have internal predecessors, (8074), 480 states have call successors, (480), 24 states have call predecessors, (480), 24 states have return successors, (480), 468 states have call predecessors, (480), 480 states have call successors, (480) [2024-10-14 11:16:12,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6244 states to 6244 states and 9034 transitions. [2024-10-14 11:16:12,676 INFO L78 Accepts]: Start accepts. Automaton has 6244 states and 9034 transitions. Word has length 153 [2024-10-14 11:16:12,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:12,677 INFO L471 AbstractCegarLoop]: Abstraction has 6244 states and 9034 transitions. [2024-10-14 11:16:12,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:12,677 INFO L276 IsEmpty]: Start isEmpty. Operand 6244 states and 9034 transitions. [2024-10-14 11:16:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 11:16:12,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:12,680 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:12,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 11:16:12,680 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:12,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:12,680 INFO L85 PathProgramCache]: Analyzing trace with hash 560767337, now seen corresponding path program 1 times [2024-10-14 11:16:12,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:12,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104392286] [2024-10-14 11:16:12,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:12,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:16,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:16,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104392286] [2024-10-14 11:16:16,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104392286] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:16,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:16,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 11:16:16,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673743341] [2024-10-14 11:16:16,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:16,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 11:16:16,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:16,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 11:16:16,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 11:16:16,415 INFO L87 Difference]: Start difference. First operand 6244 states and 9034 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:17,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:17,925 INFO L93 Difference]: Finished difference Result 10627 states and 15256 transitions. [2024-10-14 11:16:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 11:16:17,926 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 153 [2024-10-14 11:16:17,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:17,947 INFO L225 Difference]: With dead ends: 10627 [2024-10-14 11:16:17,947 INFO L226 Difference]: Without dead ends: 8628 [2024-10-14 11:16:17,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 11:16:17,956 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 243 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:17,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 631 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 11:16:17,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8628 states. [2024-10-14 11:16:18,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8628 to 7446. [2024-10-14 11:16:18,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 6925 states have (on average 1.4090974729241876) internal successors, (9758), 6937 states have internal predecessors, (9758), 480 states have call successors, (480), 40 states have call predecessors, (480), 40 states have return successors, (480), 468 states have call predecessors, (480), 480 states have call successors, (480) [2024-10-14 11:16:18,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 10718 transitions. [2024-10-14 11:16:18,314 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 10718 transitions. Word has length 153 [2024-10-14 11:16:18,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:18,315 INFO L471 AbstractCegarLoop]: Abstraction has 7446 states and 10718 transitions. [2024-10-14 11:16:18,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:18,315 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 10718 transitions. [2024-10-14 11:16:18,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 11:16:18,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:18,318 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:18,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 11:16:18,319 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:18,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:18,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1433377369, now seen corresponding path program 1 times [2024-10-14 11:16:18,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:18,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655658299] [2024-10-14 11:16:18,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:18,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:20,520 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:20,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:20,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655658299] [2024-10-14 11:16:20,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655658299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:20,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:20,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 11:16:20,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554730168] [2024-10-14 11:16:20,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:20,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 11:16:20,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:20,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 11:16:20,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-14 11:16:20,522 INFO L87 Difference]: Start difference. First operand 7446 states and 10718 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:22,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:22,802 INFO L93 Difference]: Finished difference Result 13987 states and 20054 transitions. [2024-10-14 11:16:22,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 11:16:22,803 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 153 [2024-10-14 11:16:22,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:22,821 INFO L225 Difference]: With dead ends: 13987 [2024-10-14 11:16:22,821 INFO L226 Difference]: Without dead ends: 8798 [2024-10-14 11:16:22,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-14 11:16:22,830 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 360 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:22,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 671 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 11:16:22,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8798 states. [2024-10-14 11:16:23,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8798 to 7684. [2024-10-14 11:16:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7684 states, 7163 states have (on average 1.40695239424822) internal successors, (10078), 7175 states have internal predecessors, (10078), 480 states have call successors, (480), 40 states have call predecessors, (480), 40 states have return successors, (480), 468 states have call predecessors, (480), 480 states have call successors, (480) [2024-10-14 11:16:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7684 states to 7684 states and 11038 transitions. [2024-10-14 11:16:23,175 INFO L78 Accepts]: Start accepts. Automaton has 7684 states and 11038 transitions. Word has length 153 [2024-10-14 11:16:23,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:23,175 INFO L471 AbstractCegarLoop]: Abstraction has 7684 states and 11038 transitions. [2024-10-14 11:16:23,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:23,176 INFO L276 IsEmpty]: Start isEmpty. Operand 7684 states and 11038 transitions. [2024-10-14 11:16:23,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-14 11:16:23,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:23,180 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:23,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 11:16:23,181 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:23,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:23,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1123965638, now seen corresponding path program 1 times [2024-10-14 11:16:23,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:23,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690535473] [2024-10-14 11:16:23,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:23,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:23,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:23,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690535473] [2024-10-14 11:16:23,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690535473] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:23,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:23,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 11:16:23,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796742513] [2024-10-14 11:16:23,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:23,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 11:16:23,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:23,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 11:16:23,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:16:23,303 INFO L87 Difference]: Start difference. First operand 7684 states and 11038 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:24,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:24,266 INFO L93 Difference]: Finished difference Result 17131 states and 24683 transitions. [2024-10-14 11:16:24,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:16:24,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 154 [2024-10-14 11:16:24,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:24,289 INFO L225 Difference]: With dead ends: 17131 [2024-10-14 11:16:24,290 INFO L226 Difference]: Without dead ends: 9424 [2024-10-14 11:16:24,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:16:24,301 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 221 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:24,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 582 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 11:16:24,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2024-10-14 11:16:24,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 6496. [2024-10-14 11:16:24,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6496 states, 5975 states have (on average 1.3727196652719664) internal successors, (8202), 5987 states have internal predecessors, (8202), 480 states have call successors, (480), 40 states have call predecessors, (480), 40 states have return successors, (480), 468 states have call predecessors, (480), 480 states have call successors, (480) [2024-10-14 11:16:24,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6496 states to 6496 states and 9162 transitions. [2024-10-14 11:16:24,653 INFO L78 Accepts]: Start accepts. Automaton has 6496 states and 9162 transitions. Word has length 154 [2024-10-14 11:16:24,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:24,653 INFO L471 AbstractCegarLoop]: Abstraction has 6496 states and 9162 transitions. [2024-10-14 11:16:24,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:24,653 INFO L276 IsEmpty]: Start isEmpty. Operand 6496 states and 9162 transitions. [2024-10-14 11:16:24,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-14 11:16:24,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:24,656 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:24,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 11:16:24,656 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:24,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:24,656 INFO L85 PathProgramCache]: Analyzing trace with hash 990890040, now seen corresponding path program 1 times [2024-10-14 11:16:24,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:24,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210941863] [2024-10-14 11:16:24,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:24,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:29,615 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:29,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:29,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210941863] [2024-10-14 11:16:29,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210941863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:29,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:29,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 11:16:29,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509079901] [2024-10-14 11:16:29,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:29,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 11:16:29,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:29,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 11:16:29,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2024-10-14 11:16:29,617 INFO L87 Difference]: Start difference. First operand 6496 states and 9162 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:30,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:30,698 INFO L93 Difference]: Finished difference Result 7465 states and 10441 transitions. [2024-10-14 11:16:30,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 11:16:30,698 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 154 [2024-10-14 11:16:30,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:30,712 INFO L225 Difference]: With dead ends: 7465 [2024-10-14 11:16:30,713 INFO L226 Difference]: Without dead ends: 7463 [2024-10-14 11:16:30,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-10-14 11:16:30,716 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 628 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:30,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 827 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 11:16:30,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7463 states. [2024-10-14 11:16:31,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7463 to 7411. [2024-10-14 11:16:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7411 states, 6870 states have (on average 1.3665211062590976) internal successors, (9388), 6886 states have internal predecessors, (9388), 496 states have call successors, (496), 44 states have call predecessors, (496), 44 states have return successors, (496), 480 states have call predecessors, (496), 496 states have call successors, (496) [2024-10-14 11:16:31,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7411 states to 7411 states and 10380 transitions. [2024-10-14 11:16:31,035 INFO L78 Accepts]: Start accepts. Automaton has 7411 states and 10380 transitions. Word has length 154 [2024-10-14 11:16:31,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:31,035 INFO L471 AbstractCegarLoop]: Abstraction has 7411 states and 10380 transitions. [2024-10-14 11:16:31,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:31,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7411 states and 10380 transitions. [2024-10-14 11:16:31,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-14 11:16:31,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:31,038 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:31,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 11:16:31,038 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:31,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:31,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1796949710, now seen corresponding path program 1 times [2024-10-14 11:16:31,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:31,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609489251] [2024-10-14 11:16:31,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:31,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,685 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:37,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:37,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609489251] [2024-10-14 11:16:37,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609489251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:37,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:37,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-14 11:16:37,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886090271] [2024-10-14 11:16:37,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:37,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 11:16:37,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:37,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 11:16:37,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-10-14 11:16:37,687 INFO L87 Difference]: Start difference. First operand 7411 states and 10380 transitions. Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-14 11:16:40,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:40,797 INFO L93 Difference]: Finished difference Result 14891 states and 20514 transitions. [2024-10-14 11:16:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 11:16:40,798 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 154 [2024-10-14 11:16:40,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:40,814 INFO L225 Difference]: With dead ends: 14891 [2024-10-14 11:16:40,814 INFO L226 Difference]: Without dead ends: 9603 [2024-10-14 11:16:40,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=377, Invalid=813, Unknown=0, NotChecked=0, Total=1190 [2024-10-14 11:16:40,824 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1732 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:40,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 745 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 11:16:40,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9603 states. [2024-10-14 11:16:41,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9603 to 7475. [2024-10-14 11:16:41,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7475 states, 6910 states have (on average 1.3625180897250362) internal successors, (9415), 6926 states have internal predecessors, (9415), 496 states have call successors, (496), 68 states have call predecessors, (496), 68 states have return successors, (496), 480 states have call predecessors, (496), 496 states have call successors, (496) [2024-10-14 11:16:41,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7475 states to 7475 states and 10407 transitions. [2024-10-14 11:16:41,267 INFO L78 Accepts]: Start accepts. Automaton has 7475 states and 10407 transitions. Word has length 154 [2024-10-14 11:16:41,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:41,267 INFO L471 AbstractCegarLoop]: Abstraction has 7475 states and 10407 transitions. [2024-10-14 11:16:41,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-14 11:16:41,267 INFO L276 IsEmpty]: Start isEmpty. Operand 7475 states and 10407 transitions. [2024-10-14 11:16:41,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-14 11:16:41,270 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:41,270 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:41,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 11:16:41,270 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:41,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:41,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1941830289, now seen corresponding path program 1 times [2024-10-14 11:16:41,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:41,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518936229] [2024-10-14 11:16:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:41,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:42,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:43,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:43,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518936229] [2024-10-14 11:16:43,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518936229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:43,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:43,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 11:16:43,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120378887] [2024-10-14 11:16:43,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:43,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 11:16:43,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:43,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 11:16:43,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-10-14 11:16:43,056 INFO L87 Difference]: Start difference. First operand 7475 states and 10407 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-14 11:16:45,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:45,058 INFO L93 Difference]: Finished difference Result 13806 states and 19100 transitions. [2024-10-14 11:16:45,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 11:16:45,058 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 154 [2024-10-14 11:16:45,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:45,071 INFO L225 Difference]: With dead ends: 13806 [2024-10-14 11:16:45,072 INFO L226 Difference]: Without dead ends: 8486 [2024-10-14 11:16:45,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2024-10-14 11:16:45,081 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 620 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:45,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 1011 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1709 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 11:16:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8486 states. [2024-10-14 11:16:45,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8486 to 7464. [2024-10-14 11:16:45,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7464 states, 6899 states have (on average 1.3580229018698362) internal successors, (9369), 6915 states have internal predecessors, (9369), 496 states have call successors, (496), 68 states have call predecessors, (496), 68 states have return successors, (496), 480 states have call predecessors, (496), 496 states have call successors, (496) [2024-10-14 11:16:45,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7464 states to 7464 states and 10361 transitions. [2024-10-14 11:16:45,525 INFO L78 Accepts]: Start accepts. Automaton has 7464 states and 10361 transitions. Word has length 154 [2024-10-14 11:16:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:45,526 INFO L471 AbstractCegarLoop]: Abstraction has 7464 states and 10361 transitions. [2024-10-14 11:16:45,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-14 11:16:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 7464 states and 10361 transitions. [2024-10-14 11:16:45,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-14 11:16:45,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:45,529 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:45,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 11:16:45,529 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:45,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:45,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1626170532, now seen corresponding path program 1 times [2024-10-14 11:16:45,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:45,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431298240] [2024-10-14 11:16:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:45,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,112 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-10-14 11:16:46,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:46,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431298240] [2024-10-14 11:16:46,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431298240] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:16:46,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754742751] [2024-10-14 11:16:46,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:46,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:16:46,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:16:46,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 11:16:46,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 11:16:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:46,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 11:16:46,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:16:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-10-14 11:16:46,327 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 11:16:46,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754742751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:46,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 11:16:46,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 16 [2024-10-14 11:16:46,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143017152] [2024-10-14 11:16:46,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:46,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:16:46,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:46,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:16:46,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-14 11:16:46,329 INFO L87 Difference]: Start difference. First operand 7464 states and 10361 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:46,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:46,643 INFO L93 Difference]: Finished difference Result 7522 states and 10414 transitions. [2024-10-14 11:16:46,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 11:16:46,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 155 [2024-10-14 11:16:46,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:46,648 INFO L225 Difference]: With dead ends: 7522 [2024-10-14 11:16:46,649 INFO L226 Difference]: Without dead ends: 2213 [2024-10-14 11:16:46,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2024-10-14 11:16:46,654 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 217 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:46,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 296 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:16:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2213 states. [2024-10-14 11:16:46,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2213 to 568. [2024-10-14 11:16:46,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 517 states have (on average 1.3404255319148937) internal successors, (693), 517 states have internal predecessors, (693), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 11:16:46,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 777 transitions. [2024-10-14 11:16:46,708 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 777 transitions. Word has length 155 [2024-10-14 11:16:46,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:46,708 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 777 transitions. [2024-10-14 11:16:46,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:46,709 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 777 transitions. [2024-10-14 11:16:46,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-14 11:16:46,709 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:46,710 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:46,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 11:16:46,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-14 11:16:46,911 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:46,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:46,911 INFO L85 PathProgramCache]: Analyzing trace with hash 857869454, now seen corresponding path program 1 times [2024-10-14 11:16:46,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:46,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243951208] [2024-10-14 11:16:46,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:46,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:47,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:47,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243951208] [2024-10-14 11:16:47,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243951208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:47,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:47,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:16:47,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821089957] [2024-10-14 11:16:47,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:47,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:16:47,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:47,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:16:47,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:16:47,151 INFO L87 Difference]: Start difference. First operand 568 states and 777 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 11:16:47,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:47,420 INFO L93 Difference]: Finished difference Result 1230 states and 1688 transitions. [2024-10-14 11:16:47,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:16:47,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 155 [2024-10-14 11:16:47,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:47,422 INFO L225 Difference]: With dead ends: 1230 [2024-10-14 11:16:47,422 INFO L226 Difference]: Without dead ends: 663 [2024-10-14 11:16:47,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:16:47,424 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 204 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:47,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 204 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 11:16:47,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-10-14 11:16:47,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 568. [2024-10-14 11:16:47,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 517 states have (on average 1.3346228239845261) internal successors, (690), 517 states have internal predecessors, (690), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 11:16:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 774 transitions. [2024-10-14 11:16:47,469 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 774 transitions. Word has length 155 [2024-10-14 11:16:47,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:47,469 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 774 transitions. [2024-10-14 11:16:47,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 11:16:47,470 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 774 transitions. [2024-10-14 11:16:47,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-14 11:16:47,470 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:47,471 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:47,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 11:16:47,471 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:47,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:47,471 INFO L85 PathProgramCache]: Analyzing trace with hash 723855948, now seen corresponding path program 1 times [2024-10-14 11:16:47,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:47,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784024226] [2024-10-14 11:16:47,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:47,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:51,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:51,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784024226] [2024-10-14 11:16:51,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784024226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:51,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:51,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 11:16:51,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805660586] [2024-10-14 11:16:51,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:51,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 11:16:51,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:51,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 11:16:51,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-10-14 11:16:51,432 INFO L87 Difference]: Start difference. First operand 568 states and 774 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 11:16:53,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:53,943 INFO L93 Difference]: Finished difference Result 1009 states and 1373 transitions. [2024-10-14 11:16:53,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 11:16:53,944 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 155 [2024-10-14 11:16:53,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:53,946 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 11:16:53,946 INFO L226 Difference]: Without dead ends: 616 [2024-10-14 11:16:53,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2024-10-14 11:16:53,947 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 533 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:53,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 397 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 11:16:53,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-10-14 11:16:53,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 564. [2024-10-14 11:16:53,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 513 states have (on average 1.3216374269005848) internal successors, (678), 513 states have internal predecessors, (678), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 11:16:53,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 762 transitions. [2024-10-14 11:16:53,993 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 762 transitions. Word has length 155 [2024-10-14 11:16:53,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:53,993 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 762 transitions. [2024-10-14 11:16:53,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 11:16:53,993 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 762 transitions. [2024-10-14 11:16:53,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-14 11:16:53,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:53,994 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:53,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 11:16:53,994 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:53,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:53,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1778548194, now seen corresponding path program 1 times [2024-10-14 11:16:53,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:53,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046986924] [2024-10-14 11:16:53,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:53,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:16:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:16:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:16:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:16:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:16:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:16:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:16:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:16:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:16:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:16:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:16:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:16:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:16:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:16:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:16:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:16:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:16:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:16:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:16:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:16:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:56,633 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:16:56,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:56,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046986924] [2024-10-14 11:16:56,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046986924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:56,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:56,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 11:16:56,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939480290] [2024-10-14 11:16:56,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:56,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 11:16:56,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:56,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 11:16:56,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 11:16:56,635 INFO L87 Difference]: Start difference. First operand 564 states and 762 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:57,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:57,446 INFO L93 Difference]: Finished difference Result 1350 states and 1823 transitions. [2024-10-14 11:16:57,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 11:16:57,447 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 155 [2024-10-14 11:16:57,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:57,449 INFO L225 Difference]: With dead ends: 1350 [2024-10-14 11:16:57,449 INFO L226 Difference]: Without dead ends: 787 [2024-10-14 11:16:57,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 11:16:57,451 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 120 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:57,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 368 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 11:16:57,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-10-14 11:16:57,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 783. [2024-10-14 11:16:57,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 726 states have (on average 1.3181818181818181) internal successors, (957), 728 states have internal predecessors, (957), 46 states have call successors, (46), 10 states have call predecessors, (46), 10 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-14 11:16:57,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1049 transitions. [2024-10-14 11:16:57,514 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1049 transitions. Word has length 155 [2024-10-14 11:16:57,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:57,514 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 1049 transitions. [2024-10-14 11:16:57,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:16:57,514 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1049 transitions. [2024-10-14 11:16:57,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-14 11:16:57,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:57,515 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:57,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 11:16:57,516 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:57,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:57,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1755915940, now seen corresponding path program 1 times [2024-10-14 11:16:57,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:57,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037568570] [2024-10-14 11:16:57,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:57,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:17:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:17:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:17:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:17:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:17:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:17:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:17:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:17:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:17:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:17:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:17:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:17:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:17:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:17:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:17:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:17:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:17:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:17:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:17:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:17:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:17:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-14 11:17:00,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:17:00,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037568570] [2024-10-14 11:17:00,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037568570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:17:00,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:17:00,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 11:17:00,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627640078] [2024-10-14 11:17:00,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:17:00,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 11:17:00,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:17:00,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 11:17:00,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-14 11:17:00,551 INFO L87 Difference]: Start difference. First operand 783 states and 1049 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:17:02,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:17:02,565 INFO L93 Difference]: Finished difference Result 1476 states and 1964 transitions. [2024-10-14 11:17:02,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 11:17:02,566 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 155 [2024-10-14 11:17:02,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:17:02,568 INFO L225 Difference]: With dead ends: 1476 [2024-10-14 11:17:02,568 INFO L226 Difference]: Without dead ends: 879 [2024-10-14 11:17:02,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-10-14 11:17:02,569 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 220 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 11:17:02,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 637 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 11:17:02,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2024-10-14 11:17:02,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 773. [2024-10-14 11:17:02,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 716 states have (on average 1.308659217877095) internal successors, (937), 718 states have internal predecessors, (937), 46 states have call successors, (46), 10 states have call predecessors, (46), 10 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-14 11:17:02,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1029 transitions. [2024-10-14 11:17:02,629 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1029 transitions. Word has length 155 [2024-10-14 11:17:02,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:17:02,629 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 1029 transitions. [2024-10-14 11:17:02,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-14 11:17:02,629 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1029 transitions. [2024-10-14 11:17:02,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 11:17:02,630 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:17:02,630 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:17:02,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 11:17:02,630 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:17:02,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:17:02,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1647331499, now seen corresponding path program 1 times [2024-10-14 11:17:02,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:17:02,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170411452] [2024-10-14 11:17:02,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:17:02,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:17:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:17:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:17:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:17:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:17:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:17:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:17:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:17:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:17:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:17:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:17:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:17:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:17:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:17:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:17:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:17:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:17:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:17:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:17:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:17:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:17:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:17:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,128 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 6 proven. 108 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2024-10-14 11:17:03,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:17:03,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170411452] [2024-10-14 11:17:03,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170411452] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:17:03,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545120239] [2024-10-14 11:17:03,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:17:03,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:17:03,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:17:03,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 11:17:03,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 11:17:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:03,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 11:17:03,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:17:04,050 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 446 proven. 117 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-10-14 11:17:04,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 11:17:05,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545120239] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:17:05,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 11:17:05,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 24 [2024-10-14 11:17:05,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349085426] [2024-10-14 11:17:05,225 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 11:17:05,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-14 11:17:05,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:17:05,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-14 11:17:05,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=906, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 11:17:05,227 INFO L87 Difference]: Start difference. First operand 773 states and 1029 transitions. Second operand has 24 states, 24 states have (on average 5.0) internal successors, (120), 24 states have internal predecessors, (120), 7 states have call successors, (42), 5 states have call predecessors, (42), 8 states have return successors, (42), 5 states have call predecessors, (42), 7 states have call successors, (42) [2024-10-14 11:17:06,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:17:06,646 INFO L93 Difference]: Finished difference Result 2394 states and 3130 transitions. [2024-10-14 11:17:06,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-14 11:17:06,646 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.0) internal successors, (120), 24 states have internal predecessors, (120), 7 states have call successors, (42), 5 states have call predecessors, (42), 8 states have return successors, (42), 5 states have call predecessors, (42), 7 states have call successors, (42) Word has length 156 [2024-10-14 11:17:06,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:17:06,650 INFO L225 Difference]: With dead ends: 2394 [2024-10-14 11:17:06,650 INFO L226 Difference]: Without dead ends: 1617 [2024-10-14 11:17:06,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=542, Invalid=2214, Unknown=0, NotChecked=0, Total=2756 [2024-10-14 11:17:06,652 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 1081 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 11:17:06,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 709 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 11:17:06,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-10-14 11:17:06,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1447. [2024-10-14 11:17:06,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1447 states, 1327 states have (on average 1.295403165033911) internal successors, (1719), 1330 states have internal predecessors, (1719), 90 states have call successors, (90), 29 states have call predecessors, (90), 29 states have return successors, (90), 87 states have call predecessors, (90), 90 states have call successors, (90) [2024-10-14 11:17:06,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 1899 transitions. [2024-10-14 11:17:06,795 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 1899 transitions. Word has length 156 [2024-10-14 11:17:06,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:17:06,795 INFO L471 AbstractCegarLoop]: Abstraction has 1447 states and 1899 transitions. [2024-10-14 11:17:06,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.0) internal successors, (120), 24 states have internal predecessors, (120), 7 states have call successors, (42), 5 states have call predecessors, (42), 8 states have return successors, (42), 5 states have call predecessors, (42), 7 states have call successors, (42) [2024-10-14 11:17:06,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 1899 transitions. [2024-10-14 11:17:06,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-14 11:17:06,797 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:17:06,797 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:17:06,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 11:17:06,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-14 11:17:06,998 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:17:06,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:17:06,998 INFO L85 PathProgramCache]: Analyzing trace with hash 968093074, now seen corresponding path program 1 times [2024-10-14 11:17:06,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:17:06,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003006536] [2024-10-14 11:17:06,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:17:06,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:17:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:17:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:17:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:17:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:17:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:17:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:17:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:17:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:17:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:17:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:17:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:17:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:17:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:17:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:17:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:17:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:17:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:17:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:17:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:17:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:17:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:17:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,347 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 6 proven. 108 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2024-10-14 11:17:07,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:17:07,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003006536] [2024-10-14 11:17:07,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003006536] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:17:07,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035878974] [2024-10-14 11:17:07,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:17:07,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:17:07,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:17:07,349 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 11:17:07,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 11:17:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:07,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-10-14 11:17:07,491 INFO L278 TraceCheckSpWp]: Computing forward predicates...