./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-45.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-45.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 44d9bb8f18d9863e5cdf05588cea81abc6d6b23ddccdc4dae72d53975015c367 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 14:23:07,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 14:23:07,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 14:23:07,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 14:23:07,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 14:23:07,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 14:23:07,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 14:23:07,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 14:23:07,624 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 14:23:07,628 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 14:23:07,628 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 14:23:07,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 14:23:07,629 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 14:23:07,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 14:23:07,629 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 14:23:07,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 14:23:07,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 14:23:07,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 14:23:07,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 14:23:07,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 14:23:07,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 14:23:07,633 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 14:23:07,633 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 14:23:07,633 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 14:23:07,633 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 14:23:07,634 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 14:23:07,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 14:23:07,634 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 14:23:07,634 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 14:23:07,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 14:23:07,635 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 14:23:07,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 14:23:07,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:23:07,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 14:23:07,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 14:23:07,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 14:23:07,636 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 14:23:07,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 14:23:07,637 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 14:23:07,637 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 14:23:07,637 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 14:23:07,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 14:23:07,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44d9bb8f18d9863e5cdf05588cea81abc6d6b23ddccdc4dae72d53975015c367 [2024-11-16 14:23:07,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 14:23:07,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 14:23:07,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 14:23:07,947 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 14:23:07,948 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 14:23:07,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-45.i [2024-11-16 14:23:09,266 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 14:23:09,528 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 14:23:09,530 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-45.i [2024-11-16 14:23:09,542 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e53801b63/107986c59931411fb63faac260e7b079/FLAGfbca779af [2024-11-16 14:23:09,839 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e53801b63/107986c59931411fb63faac260e7b079 [2024-11-16 14:23:09,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 14:23:09,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 14:23:09,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 14:23:09,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 14:23:09,850 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 14:23:09,851 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:23:09" (1/1) ... [2024-11-16 14:23:09,852 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3297a27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:09, skipping insertion in model container [2024-11-16 14:23:09,852 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:23:09" (1/1) ... [2024-11-16 14:23:09,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 14:23:10,033 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-45.i[919,932] [2024-11-16 14:23:10,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:23:10,113 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 14:23:10,122 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-45.i[919,932] [2024-11-16 14:23:10,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:23:10,180 INFO L204 MainTranslator]: Completed translation [2024-11-16 14:23:10,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10 WrapperNode [2024-11-16 14:23:10,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 14:23:10,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 14:23:10,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 14:23:10,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 14:23:10,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,245 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 191 [2024-11-16 14:23:10,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 14:23:10,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 14:23:10,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 14:23:10,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 14:23:10,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,261 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,280 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 14:23:10,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,281 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,294 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,306 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 14:23:10,307 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 14:23:10,307 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 14:23:10,307 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 14:23:10,308 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (1/1) ... [2024-11-16 14:23:10,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:23:10,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:23:10,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 14:23:10,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 14:23:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 14:23:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 14:23:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 14:23:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 14:23:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 14:23:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 14:23:10,540 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 14:23:10,542 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 14:23:10,944 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-16 14:23:10,945 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 14:23:10,957 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 14:23:10,957 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 14:23:10,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:23:10 BoogieIcfgContainer [2024-11-16 14:23:10,958 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 14:23:10,960 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 14:23:10,960 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 14:23:10,963 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 14:23:10,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:23:09" (1/3) ... [2024-11-16 14:23:10,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22665d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:23:10, skipping insertion in model container [2024-11-16 14:23:10,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:10" (2/3) ... [2024-11-16 14:23:10,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22665d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:23:10, skipping insertion in model container [2024-11-16 14:23:10,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:23:10" (3/3) ... [2024-11-16 14:23:10,965 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-45.i [2024-11-16 14:23:10,979 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 14:23:10,979 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 14:23:11,033 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 14:23:11,038 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;@edef761, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 14:23:11,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 14:23:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 59 states have internal predecessors, (82), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 14:23:11,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-16 14:23:11,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:23:11,059 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:23:11,059 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:23:11,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:23:11,064 INFO L85 PathProgramCache]: Analyzing trace with hash 995449990, now seen corresponding path program 1 times [2024-11-16 14:23:11,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:23:11,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637848453] [2024-11-16 14:23:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:23:11,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:23:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:23:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:23:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:23:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:23:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:23:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:23:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:23:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:23:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:23:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:23:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:23:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:23:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:23:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:23:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:23:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:23:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:23:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:23:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:23:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:23:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 14:23:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 14:23:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 14:23:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 14:23:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 14:23:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 14:23:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 14:23:11,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:23:11,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637848453] [2024-11-16 14:23:11,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637848453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:23:11,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:23:11,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 14:23:11,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086100619] [2024-11-16 14:23:11,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:23:11,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 14:23:11,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:23:11,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 14:23:11,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:23:11,566 INFO L87 Difference]: Start difference. First operand has 87 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 59 states have internal predecessors, (82), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 14:23:11,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:23:11,598 INFO L93 Difference]: Finished difference Result 166 states and 287 transitions. [2024-11-16 14:23:11,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 14:23:11,601 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 174 [2024-11-16 14:23:11,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:23:11,610 INFO L225 Difference]: With dead ends: 166 [2024-11-16 14:23:11,610 INFO L226 Difference]: Without dead ends: 82 [2024-11-16 14:23:11,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:23:11,635 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:23:11,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:23:11,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-16 14:23:11,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-16 14:23:11,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.3703703703703705) internal successors, (74), 54 states have internal predecessors, (74), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 14:23:11,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 126 transitions. [2024-11-16 14:23:11,705 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 126 transitions. Word has length 174 [2024-11-16 14:23:11,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:23:11,705 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 126 transitions. [2024-11-16 14:23:11,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 14:23:11,706 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 126 transitions. [2024-11-16 14:23:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-16 14:23:11,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:23:11,710 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:23:11,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 14:23:11,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:23:11,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:23:11,711 INFO L85 PathProgramCache]: Analyzing trace with hash -515863808, now seen corresponding path program 1 times [2024-11-16 14:23:11,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:23:11,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126842061] [2024-11-16 14:23:11,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:23:11,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:23:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:11,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:23:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:23:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:23:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:23:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:23:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:23:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:23:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:23:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:23:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:23:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:23:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:23:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:23:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:23:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:23:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:23:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:23:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:23:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:23:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:23:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 14:23:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 14:23:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 14:23:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 14:23:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 14:23:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 14:23:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 14:23:12,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:23:12,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126842061] [2024-11-16 14:23:12,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126842061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:23:12,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:23:12,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:23:12,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764549184] [2024-11-16 14:23:12,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:23:12,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:23:12,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:23:12,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:23:12,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:23:12,099 INFO L87 Difference]: Start difference. First operand 82 states and 126 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 14:23:12,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:23:12,181 INFO L93 Difference]: Finished difference Result 236 states and 364 transitions. [2024-11-16 14:23:12,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:23:12,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 174 [2024-11-16 14:23:12,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:23:12,184 INFO L225 Difference]: With dead ends: 236 [2024-11-16 14:23:12,184 INFO L226 Difference]: Without dead ends: 157 [2024-11-16 14:23:12,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:23:12,188 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 112 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:23:12,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 251 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:23:12,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-16 14:23:12,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2024-11-16 14:23:12,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 99 states have (on average 1.3232323232323233) internal successors, (131), 99 states have internal predecessors, (131), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-16 14:23:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 235 transitions. [2024-11-16 14:23:12,233 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 235 transitions. Word has length 174 [2024-11-16 14:23:12,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:23:12,233 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 235 transitions. [2024-11-16 14:23:12,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 14:23:12,234 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 235 transitions. [2024-11-16 14:23:12,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:23:12,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:23:12,239 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:23:12,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 14:23:12,239 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:23:12,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:23:12,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1721883863, now seen corresponding path program 1 times [2024-11-16 14:23:12,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:23:12,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460393348] [2024-11-16 14:23:12,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:23:12,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:23:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:23:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:23:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:23:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:23:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:23:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:23:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:23:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:23:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:23:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:23:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:23:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:23:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:23:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:23:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:23:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:23:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:23:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:23:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:23:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:23:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 14:23:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 14:23:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 14:23:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 14:23:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 14:23:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 14:23:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 14:23:12,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:23:12,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460393348] [2024-11-16 14:23:12,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460393348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:23:12,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:23:12,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 14:23:12,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305613723] [2024-11-16 14:23:12,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:23:12,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 14:23:12,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:23:12,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 14:23:12,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 14:23:12,871 INFO L87 Difference]: Start difference. First operand 154 states and 235 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 14:23:12,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:23:12,990 INFO L93 Difference]: Finished difference Result 372 states and 559 transitions. [2024-11-16 14:23:12,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 14:23:12,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 176 [2024-11-16 14:23:12,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:23:12,994 INFO L225 Difference]: With dead ends: 372 [2024-11-16 14:23:12,994 INFO L226 Difference]: Without dead ends: 221 [2024-11-16 14:23:12,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 14:23:12,999 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 81 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 14:23:13,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 329 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 14:23:13,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-16 14:23:13,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 213. [2024-11-16 14:23:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 152 states have (on average 1.368421052631579) internal successors, (208), 154 states have internal predecessors, (208), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 14:23:13,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 320 transitions. [2024-11-16 14:23:13,046 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 320 transitions. Word has length 176 [2024-11-16 14:23:13,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:23:13,047 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 320 transitions. [2024-11-16 14:23:13,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 14:23:13,047 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 320 transitions. [2024-11-16 14:23:13,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:23:13,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:23:13,054 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:23:13,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 14:23:13,054 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:23:13,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:23:13,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1908491078, now seen corresponding path program 1 times [2024-11-16 14:23:13,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:23:13,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346174825] [2024-11-16 14:23:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:23:13,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:23:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:23:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:23:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:23:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:23:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:23:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:23:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:23:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:23:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:23:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:23:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:23:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:23:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:23:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:23:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:23:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:23:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:23:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:23:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:23:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:23:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 14:23:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 14:23:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 14:23:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 14:23:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 14:23:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 14:23:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 14:23:28,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:23:28,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346174825] [2024-11-16 14:23:28,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346174825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:23:28,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:23:28,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 14:23:28,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422797889] [2024-11-16 14:23:28,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:23:28,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 14:23:28,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:23:28,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 14:23:28,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:23:28,718 INFO L87 Difference]: Start difference. First operand 213 states and 320 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, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 14:23:29,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:23:29,201 INFO L93 Difference]: Finished difference Result 674 states and 996 transitions. [2024-11-16 14:23:29,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 14:23:29,202 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, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 176 [2024-11-16 14:23:29,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:23:29,207 INFO L225 Difference]: With dead ends: 674 [2024-11-16 14:23:29,207 INFO L226 Difference]: Without dead ends: 464 [2024-11-16 14:23:29,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:23:29,209 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 118 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 14:23:29,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 293 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 14:23:29,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-16 14:23:29,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 374. [2024-11-16 14:23:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 289 states have (on average 1.4152249134948096) internal successors, (409), 295 states have internal predecessors, (409), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 70 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-16 14:23:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 561 transitions. [2024-11-16 14:23:29,277 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 561 transitions. Word has length 176 [2024-11-16 14:23:29,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:23:29,278 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 561 transitions. [2024-11-16 14:23:29,278 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, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 14:23:29,278 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 561 transitions. [2024-11-16 14:23:29,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:23:29,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:23:29,280 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:23:29,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 14:23:29,281 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:23:29,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:23:29,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2093073211, now seen corresponding path program 1 times [2024-11-16 14:23:29,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:23:29,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243869322] [2024-11-16 14:23:29,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:23:29,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:23:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:23:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:23:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:23:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:23:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:23:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:23:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:23:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:23:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:23:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:23:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:23:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:23:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:23:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:23:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:23:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:23:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:23:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:23:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:23:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:23:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 14:23:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 14:23:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 14:23:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 14:23:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 14:23:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 14:23:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:31,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 14:23:31,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:23:31,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243869322] [2024-11-16 14:23:31,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243869322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:23:31,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:23:31,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 14:23:31,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977887030] [2024-11-16 14:23:31,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:23:31,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 14:23:31,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:23:31,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 14:23:31,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:23:31,224 INFO L87 Difference]: Start difference. First operand 374 states and 561 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, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 14:23:31,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:23:31,714 INFO L93 Difference]: Finished difference Result 835 states and 1235 transitions. [2024-11-16 14:23:31,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 14:23:31,716 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, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 176 [2024-11-16 14:23:31,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:23:31,719 INFO L225 Difference]: With dead ends: 835 [2024-11-16 14:23:31,720 INFO L226 Difference]: Without dead ends: 464 [2024-11-16 14:23:31,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:23:31,721 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 105 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 14:23:31,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 420 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 14:23:31,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-16 14:23:31,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 356. [2024-11-16 14:23:31,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 271 states have (on average 1.3985239852398523) internal successors, (379), 277 states have internal predecessors, (379), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 70 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-16 14:23:31,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 531 transitions. [2024-11-16 14:23:31,787 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 531 transitions. Word has length 176 [2024-11-16 14:23:31,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:23:31,788 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 531 transitions. [2024-11-16 14:23:31,788 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, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 14:23:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 531 transitions. [2024-11-16 14:23:31,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:23:31,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:23:31,790 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:23:31,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 14:23:31,790 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:23:31,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:23:31,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1219773736, now seen corresponding path program 1 times [2024-11-16 14:23:31,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:23:31,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761610700] [2024-11-16 14:23:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:23:31,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:23:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:24:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:24:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:24:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:24:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:24:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:24:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:24:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:24:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:24:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:24:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:24:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:24:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:24:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:24:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:24:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:24:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:24:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:24:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:24:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:24:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 14:24:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 14:24:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 14:24:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 14:24:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 14:24:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 14:24:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 14:24:03,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:24:03,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761610700] [2024-11-16 14:24:03,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761610700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:24:03,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:24:03,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 14:24:03,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872333774] [2024-11-16 14:24:03,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:24:03,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 14:24:03,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:24:03,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 14:24:03,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-16 14:24:03,147 INFO L87 Difference]: Start difference. First operand 356 states and 531 transitions. Second operand has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 14:24:12,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:24:12,082 INFO L93 Difference]: Finished difference Result 804 states and 1173 transitions. [2024-11-16 14:24:12,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 14:24:12,083 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 176 [2024-11-16 14:24:12,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:24:12,086 INFO L225 Difference]: With dead ends: 804 [2024-11-16 14:24:12,086 INFO L226 Difference]: Without dead ends: 451 [2024-11-16 14:24:12,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2024-11-16 14:24:12,088 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 560 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 14:24:12,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 542 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 14:24:12,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-16 14:24:12,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 391. [2024-11-16 14:24:12,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 302 states have (on average 1.3874172185430464) internal successors, (419), 308 states have internal predecessors, (419), 76 states have call successors, (76), 12 states have call predecessors, (76), 12 states have return successors, (76), 70 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-16 14:24:12,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 571 transitions. [2024-11-16 14:24:12,149 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 571 transitions. Word has length 176 [2024-11-16 14:24:12,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:24:12,149 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 571 transitions. [2024-11-16 14:24:12,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 14:24:12,150 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 571 transitions. [2024-11-16 14:24:12,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:24:12,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:24:12,151 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:24:12,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 14:24:12,152 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:24:12,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:24:12,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1278242201, now seen corresponding path program 1 times [2024-11-16 14:24:12,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:24:12,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722878781] [2024-11-16 14:24:12,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:24:12,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:24:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat