./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.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_codestructure_steplocals_file-34.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 f39f68f55c90deb8496cdc58f18787083a238252dfdfe92f73d39acb627ae3ba --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 12:26:12,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 12:26:12,829 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 12:26:12,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 12:26:12,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 12:26:12,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 12:26:12,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 12:26:12,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 12:26:12,867 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 12:26:12,868 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 12:26:12,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 12:26:12,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 12:26:12,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 12:26:12,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 12:26:12,871 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 12:26:12,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 12:26:12,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 12:26:12,872 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 12:26:12,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 12:26:12,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 12:26:12,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 12:26:12,877 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 12:26:12,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 12:26:12,878 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 12:26:12,878 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 12:26:12,878 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 12:26:12,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 12:26:12,879 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 12:26:12,879 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 12:26:12,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 12:26:12,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 12:26:12,880 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 12:26:12,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 12:26:12,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 12:26:12,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 12:26:12,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 12:26:12,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 12:26:12,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 12:26:12,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 12:26:12,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 12:26:12,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 12:26:12,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 12:26:12,884 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f39f68f55c90deb8496cdc58f18787083a238252dfdfe92f73d39acb627ae3ba [2024-11-16 12:26:13,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 12:26:13,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 12:26:13,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 12:26:13,189 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 12:26:13,189 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 12:26:13,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i [2024-11-16 12:26:14,704 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 12:26:14,888 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 12:26:14,889 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i [2024-11-16 12:26:14,898 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a85a5a902/8bdd6f76caca4cc6964b62b10e243464/FLAGed6fe6e7f [2024-11-16 12:26:14,910 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a85a5a902/8bdd6f76caca4cc6964b62b10e243464 [2024-11-16 12:26:14,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 12:26:14,914 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 12:26:14,915 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 12:26:14,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 12:26:14,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 12:26:14,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:26:14" (1/1) ... [2024-11-16 12:26:14,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e1f6be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:14, skipping insertion in model container [2024-11-16 12:26:14,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:26:14" (1/1) ... [2024-11-16 12:26:14,949 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 12:26:15,148 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_codestructure_steplocals_file-34.i[917,930] [2024-11-16 12:26:15,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 12:26:15,255 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 12:26:15,268 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_codestructure_steplocals_file-34.i[917,930] [2024-11-16 12:26:15,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 12:26:15,338 INFO L204 MainTranslator]: Completed translation [2024-11-16 12:26:15,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15 WrapperNode [2024-11-16 12:26:15,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 12:26:15,341 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 12:26:15,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 12:26:15,341 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 12:26:15,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,363 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,418 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 201 [2024-11-16 12:26:15,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 12:26:15,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 12:26:15,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 12:26:15,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 12:26:15,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,438 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,472 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 12:26:15,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,488 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 12:26:15,507 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 12:26:15,507 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 12:26:15,507 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 12:26:15,508 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (1/1) ... [2024-11-16 12:26:15,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 12:26:15,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 12:26:15,545 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 12:26:15,549 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 12:26:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 12:26:15,591 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 12:26:15,591 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 12:26:15,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 12:26:15,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 12:26:15,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 12:26:15,666 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 12:26:15,669 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 12:26:16,169 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L139: havoc property_#t~bitwise20#1;havoc property_#t~ite22#1;havoc property_#t~bitwise21#1;havoc property_#t~short23#1; [2024-11-16 12:26:16,213 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-16 12:26:16,213 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 12:26:16,243 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 12:26:16,244 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 12:26:16,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 12:26:16 BoogieIcfgContainer [2024-11-16 12:26:16,244 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 12:26:16,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 12:26:16,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 12:26:16,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 12:26:16,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:26:14" (1/3) ... [2024-11-16 12:26:16,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af08e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:26:16, skipping insertion in model container [2024-11-16 12:26:16,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:15" (2/3) ... [2024-11-16 12:26:16,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af08e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:26:16, skipping insertion in model container [2024-11-16 12:26:16,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 12:26:16" (3/3) ... [2024-11-16 12:26:16,257 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-34.i [2024-11-16 12:26:16,274 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 12:26:16,275 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 12:26:16,344 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 12:26:16,351 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;@14a7792c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 12:26:16,351 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 12:26:16,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 68 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-16 12:26:16,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 12:26:16,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:26:16,369 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 12:26:16,370 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:26:16,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:26:16,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2014808405, now seen corresponding path program 1 times [2024-11-16 12:26:16,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:26:16,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775110240] [2024-11-16 12:26:16,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:26:16,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:26:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 12:26:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 12:26:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 12:26:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 12:26:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 12:26:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 12:26:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 12:26:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 12:26:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 12:26:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 12:26:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 12:26:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 12:26:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 12:26:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 12:26:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 12:26:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 12:26:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 12:26:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 12:26:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 12:26:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 12:26:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 12:26:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 12:26:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 12:26:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 12:26:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 12:26:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 12:26:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:16,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 12:26:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:17,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 12:26:17,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 12:26:17,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775110240] [2024-11-16 12:26:17,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775110240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 12:26:17,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 12:26:17,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 12:26:17,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263243394] [2024-11-16 12:26:17,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 12:26:17,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 12:26:17,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 12:26:17,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 12:26:17,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 12:26:17,076 INFO L87 Difference]: Start difference. First operand has 97 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 68 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:26:17,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 12:26:17,171 INFO L93 Difference]: Finished difference Result 229 states and 382 transitions. [2024-11-16 12:26:17,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 12:26:17,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-16 12:26:17,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 12:26:17,184 INFO L225 Difference]: With dead ends: 229 [2024-11-16 12:26:17,184 INFO L226 Difference]: Without dead ends: 135 [2024-11-16 12:26:17,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 12:26:17,192 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 57 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 12:26:17,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 265 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 12:26:17,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-16 12:26:17,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 98. [2024-11-16 12:26:17,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 69 states have internal predecessors, (95), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-16 12:26:17,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 149 transitions. [2024-11-16 12:26:17,256 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 149 transitions. Word has length 175 [2024-11-16 12:26:17,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 12:26:17,260 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 149 transitions. [2024-11-16 12:26:17,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:26:17,261 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 149 transitions. [2024-11-16 12:26:17,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 12:26:17,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:26:17,265 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 12:26:17,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 12:26:17,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:26:17,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:26:17,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1504274228, now seen corresponding path program 1 times [2024-11-16 12:26:17,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:26:17,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086649092] [2024-11-16 12:26:17,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:26:17,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:26:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 12:26:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 12:26:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 12:26:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 12:26:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 12:26:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 12:26:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 12:26:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 12:26:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 12:26:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 12:26:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 12:26:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 12:26:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 12:26:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 12:26:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 12:26:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 12:26:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 12:26:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 12:26:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 12:26:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 12:26:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 12:26:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 12:26:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 12:26:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 12:26:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 12:26:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 12:26:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 12:26:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 12:26:19,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 12:26:19,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086649092] [2024-11-16 12:26:19,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086649092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 12:26:19,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 12:26:19,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 12:26:19,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191087815] [2024-11-16 12:26:19,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 12:26:19,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 12:26:19,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 12:26:19,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 12:26:19,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-16 12:26:19,253 INFO L87 Difference]: Start difference. First operand 98 states and 149 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:26:19,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 12:26:19,547 INFO L93 Difference]: Finished difference Result 308 states and 459 transitions. [2024-11-16 12:26:19,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 12:26:19,548 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-16 12:26:19,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 12:26:19,551 INFO L225 Difference]: With dead ends: 308 [2024-11-16 12:26:19,551 INFO L226 Difference]: Without dead ends: 213 [2024-11-16 12:26:19,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 12:26:19,554 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 252 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 12:26:19,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 717 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 12:26:19,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-16 12:26:19,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 119. [2024-11-16 12:26:19,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 90 states have (on average 1.4111111111111112) internal successors, (127), 90 states have internal predecessors, (127), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-16 12:26:19,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 181 transitions. [2024-11-16 12:26:19,578 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 181 transitions. Word has length 175 [2024-11-16 12:26:19,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 12:26:19,580 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 181 transitions. [2024-11-16 12:26:19,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:26:19,580 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 181 transitions. [2024-11-16 12:26:19,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 12:26:19,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:26:19,587 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 12:26:19,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 12:26:19,588 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:26:19,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:26:19,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1437383371, now seen corresponding path program 1 times [2024-11-16 12:26:19,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:26:19,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68668094] [2024-11-16 12:26:19,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:26:19,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:26:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 12:26:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 12:26:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 12:26:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 12:26:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 12:26:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 12:26:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 12:26:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 12:26:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 12:26:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 12:26:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 12:26:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 12:26:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 12:26:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 12:26:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 12:26:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 12:26:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 12:26:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 12:26:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 12:26:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 12:26:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 12:26:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 12:26:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 12:26:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 12:26:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 12:26:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 12:26:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 12:26:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 12:26:34,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 12:26:34,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68668094] [2024-11-16 12:26:34,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68668094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 12:26:34,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 12:26:34,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 12:26:34,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755493593] [2024-11-16 12:26:34,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 12:26:34,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 12:26:34,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 12:26:34,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 12:26:34,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-16 12:26:34,385 INFO L87 Difference]: Start difference. First operand 119 states and 181 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-16 12:26:36,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 12:26:36,090 INFO L93 Difference]: Finished difference Result 493 states and 732 transitions. [2024-11-16 12:26:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 12:26:36,091 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-11-16 12:26:36,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 12:26:36,094 INFO L225 Difference]: With dead ends: 493 [2024-11-16 12:26:36,095 INFO L226 Difference]: Without dead ends: 377 [2024-11-16 12:26:36,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=155, Invalid=495, Unknown=0, NotChecked=0, Total=650 [2024-11-16 12:26:36,097 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 524 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 12:26:36,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1145 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 12:26:36,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-16 12:26:36,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 262. [2024-11-16 12:26:36,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 205 states have (on average 1.4292682926829268) internal successors, (293), 205 states have internal predecessors, (293), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 12:26:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 401 transitions. [2024-11-16 12:26:36,130 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 401 transitions. Word has length 175 [2024-11-16 12:26:36,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 12:26:36,131 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 401 transitions. [2024-11-16 12:26:36,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-16 12:26:36,131 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 401 transitions. [2024-11-16 12:26:36,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 12:26:36,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:26:36,137 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 12:26:36,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 12:26:36,138 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:26:36,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:26:36,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1050129462, now seen corresponding path program 1 times [2024-11-16 12:26:36,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:26:36,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763548155] [2024-11-16 12:26:36,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:26:36,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:26:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 12:26:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 12:26:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 12:26:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 12:26:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 12:26:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 12:26:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 12:26:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 12:26:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 12:26:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 12:26:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 12:26:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 12:26:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 12:26:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 12:26:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 12:26:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 12:26:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 12:26:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 12:26:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 12:26:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 12:26:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 12:26:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 12:26:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 12:26:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 12:26:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 12:26:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 12:26:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 12:26:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:37,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 12:26:37,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 12:26:37,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763548155] [2024-11-16 12:26:37,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763548155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 12:26:37,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 12:26:37,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 12:26:37,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059060771] [2024-11-16 12:26:37,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 12:26:37,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 12:26:37,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 12:26:37,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 12:26:37,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 12:26:37,868 INFO L87 Difference]: Start difference. First operand 262 states and 401 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:26:39,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 12:26:39,381 INFO L93 Difference]: Finished difference Result 681 states and 1020 transitions. [2024-11-16 12:26:39,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 12:26:39,385 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-16 12:26:39,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 12:26:39,391 INFO L225 Difference]: With dead ends: 681 [2024-11-16 12:26:39,391 INFO L226 Difference]: Without dead ends: 422 [2024-11-16 12:26:39,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-16 12:26:39,393 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 206 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 12:26:39,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 739 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 12:26:39,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-16 12:26:39,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 290. [2024-11-16 12:26:39,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 233 states have (on average 1.4291845493562232) internal successors, (333), 233 states have internal predecessors, (333), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 12:26:39,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 441 transitions. [2024-11-16 12:26:39,440 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 441 transitions. Word has length 175 [2024-11-16 12:26:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 12:26:39,441 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 441 transitions. [2024-11-16 12:26:39,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:26:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 441 transitions. [2024-11-16 12:26:39,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 12:26:39,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:26:39,445 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 12:26:39,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 12:26:39,446 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:26:39,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:26:39,446 INFO L85 PathProgramCache]: Analyzing trace with hash 624702820, now seen corresponding path program 1 times [2024-11-16 12:26:39,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:26:39,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117055472] [2024-11-16 12:26:39,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:26:39,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:26:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 12:26:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 12:26:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 12:26:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 12:26:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 12:26:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 12:26:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 12:26:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 12:26:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 12:26:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 12:26:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 12:26:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 12:26:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 12:26:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 12:26:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 12:26:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 12:26:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 12:26:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 12:26:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 12:26:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 12:26:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 12:26:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 12:26:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 12:26:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 12:26:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 12:26:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 12:26:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 12:26:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:26:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 12:26:49,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 12:26:49,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117055472] [2024-11-16 12:26:49,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117055472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 12:26:49,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 12:26:49,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 12:26:49,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51837275] [2024-11-16 12:26:49,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 12:26:49,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 12:26:49,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 12:26:49,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 12:26:49,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-16 12:26:49,383 INFO L87 Difference]: Start difference. First operand 290 states and 441 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:26:49,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 12:26:49,931 INFO L93 Difference]: Finished difference Result 825 states and 1242 transitions. [2024-11-16 12:26:49,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 12:26:49,933 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-16 12:26:49,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 12:26:49,937 INFO L225 Difference]: With dead ends: 825 [2024-11-16 12:26:49,938 INFO L226 Difference]: Without dead ends: 538 [2024-11-16 12:26:49,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 12:26:49,942 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 386 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 12:26:49,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 908 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 12:26:49,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-16 12:26:49,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 300. [2024-11-16 12:26:49,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 243 states have (on average 1.4197530864197532) internal successors, (345), 243 states have internal predecessors, (345), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 12:26:49,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 453 transitions. [2024-11-16 12:26:49,976 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 453 transitions. Word has length 176 [2024-11-16 12:26:49,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 12:26:49,977 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 453 transitions. [2024-11-16 12:26:49,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:26:49,977 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 453 transitions. [2024-11-16 12:26:49,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 12:26:49,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:26:49,980 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 12:26:49,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 12:26:49,980 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:26:49,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:26:49,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1978012517, now seen corresponding path program 1 times [2024-11-16 12:26:49,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:26:49,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384266167] [2024-11-16 12:26:49,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:26:49,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:26:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 12:27:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 12:27:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 12:27:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 12:27:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 12:27:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 12:27:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 12:27:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 12:27:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 12:27:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 12:27:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 12:27:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 12:27:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 12:27:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 12:27:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 12:27:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 12:27:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 12:27:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 12:27:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 12:27:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 12:27:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 12:27:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 12:27:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 12:27:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 12:27:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 12:27:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 12:27:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 12:27:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 12:27:00,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 12:27:00,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384266167] [2024-11-16 12:27:00,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384266167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 12:27:00,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 12:27:00,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 12:27:00,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471113367] [2024-11-16 12:27:00,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 12:27:00,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 12:27:00,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 12:27:00,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 12:27:00,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-16 12:27:00,135 INFO L87 Difference]: Start difference. First operand 300 states and 453 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:27:01,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 12:27:01,988 INFO L93 Difference]: Finished difference Result 719 states and 1069 transitions. [2024-11-16 12:27:01,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 12:27:01,989 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-16 12:27:01,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 12:27:01,992 INFO L225 Difference]: With dead ends: 719 [2024-11-16 12:27:01,992 INFO L226 Difference]: Without dead ends: 422 [2024-11-16 12:27:01,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-11-16 12:27:01,994 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 496 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 12:27:01,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1109 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 12:27:01,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-16 12:27:02,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 316. [2024-11-16 12:27:02,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 259 states have (on average 1.4247104247104247) internal successors, (369), 259 states have internal predecessors, (369), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 12:27:02,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 477 transitions. [2024-11-16 12:27:02,014 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 477 transitions. Word has length 176 [2024-11-16 12:27:02,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 12:27:02,014 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 477 transitions. [2024-11-16 12:27:02,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:27:02,015 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 477 transitions. [2024-11-16 12:27:02,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 12:27:02,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:27:02,017 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 12:27:02,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 12:27:02,017 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:27:02,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:27:02,018 INFO L85 PathProgramCache]: Analyzing trace with hash 170558054, now seen corresponding path program 1 times [2024-11-16 12:27:02,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:27:02,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996621598] [2024-11-16 12:27:02,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:27:02,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:27:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 12:27:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 12:27:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 12:27:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 12:27:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 12:27:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 12:27:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 12:27:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 12:27:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 12:27:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 12:27:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 12:27:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 12:27:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 12:27:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 12:27:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 12:27:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 12:27:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 12:27:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 12:27:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 12:27:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 12:27:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 12:27:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 12:27:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 12:27:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 12:27:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 12:27:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 12:27:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 12:27:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:11,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 12:27:11,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 12:27:11,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996621598] [2024-11-16 12:27:11,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996621598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 12:27:11,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 12:27:11,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 12:27:11,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376632032] [2024-11-16 12:27:11,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 12:27:11,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 12:27:11,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 12:27:11,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 12:27:11,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-16 12:27:11,398 INFO L87 Difference]: Start difference. First operand 316 states and 477 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:27:12,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 12:27:12,272 INFO L93 Difference]: Finished difference Result 892 states and 1316 transitions. [2024-11-16 12:27:12,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 12:27:12,273 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-16 12:27:12,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 12:27:12,280 INFO L225 Difference]: With dead ends: 892 [2024-11-16 12:27:12,280 INFO L226 Difference]: Without dead ends: 579 [2024-11-16 12:27:12,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-16 12:27:12,282 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 244 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 12:27:12,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1316 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 12:27:12,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-16 12:27:12,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 310. [2024-11-16 12:27:12,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 253 states have (on average 1.4150197628458498) internal successors, (358), 253 states have internal predecessors, (358), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 12:27:12,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 466 transitions. [2024-11-16 12:27:12,309 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 466 transitions. Word has length 176 [2024-11-16 12:27:12,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 12:27:12,310 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 466 transitions. [2024-11-16 12:27:12,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:27:12,311 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 466 transitions. [2024-11-16 12:27:12,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 12:27:12,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:27:12,314 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 12:27:12,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 12:27:12,314 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:27:12,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:27:12,315 INFO L85 PathProgramCache]: Analyzing trace with hash 836053733, now seen corresponding path program 1 times [2024-11-16 12:27:12,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:27:12,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503441093] [2024-11-16 12:27:12,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:27:12,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:27:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 12:27:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 12:27:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 12:27:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 12:27:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 12:27:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 12:27:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 12:27:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 12:27:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 12:27:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 12:27:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 12:27:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 12:27:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 12:27:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 12:27:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 12:27:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 12:27:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 12:27:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 12:27:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 12:27:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 12:27:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 12:27:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 12:27:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 12:27:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 12:27:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 12:27:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 12:27:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 12:27:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 12:27:20,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 12:27:20,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503441093] [2024-11-16 12:27:20,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503441093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 12:27:20,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 12:27:20,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 12:27:20,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795633322] [2024-11-16 12:27:20,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 12:27:20,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 12:27:20,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 12:27:20,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 12:27:20,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 12:27:20,945 INFO L87 Difference]: Start difference. First operand 310 states and 466 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:27:21,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 12:27:21,249 INFO L93 Difference]: Finished difference Result 879 states and 1310 transitions. [2024-11-16 12:27:21,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 12:27:21,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-16 12:27:21,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 12:27:21,258 INFO L225 Difference]: With dead ends: 879 [2024-11-16 12:27:21,258 INFO L226 Difference]: Without dead ends: 572 [2024-11-16 12:27:21,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-16 12:27:21,261 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 219 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 12:27:21,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 996 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 12:27:21,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-16 12:27:21,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 313. [2024-11-16 12:27:21,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 256 states have (on average 1.41796875) internal successors, (363), 256 states have internal predecessors, (363), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 12:27:21,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 471 transitions. [2024-11-16 12:27:21,284 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 471 transitions. Word has length 176 [2024-11-16 12:27:21,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 12:27:21,284 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 471 transitions. [2024-11-16 12:27:21,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:27:21,285 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 471 transitions. [2024-11-16 12:27:21,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 12:27:21,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:27:21,287 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 12:27:21,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 12:27:21,287 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:27:21,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:27:21,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2105603866, now seen corresponding path program 1 times [2024-11-16 12:27:21,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:27:21,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626013777] [2024-11-16 12:27:21,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:27:21,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:27:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 12:27:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 12:27:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 12:27:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 12:27:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 12:27:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 12:27:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 12:27:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 12:27:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 12:27:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 12:27:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 12:27:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 12:27:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 12:27:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 12:27:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 12:27:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 12:27:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 12:27:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 12:27:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 12:27:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 12:27:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 12:27:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 12:27:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 12:27:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 12:27:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 12:27:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 12:27:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 12:27:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:27:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 12:27:21,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 12:27:21,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626013777] [2024-11-16 12:27:21,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626013777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 12:27:21,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 12:27:21,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 12:27:21,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039508205] [2024-11-16 12:27:21,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 12:27:21,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 12:27:21,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 12:27:21,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 12:27:21,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 12:27:21,901 INFO L87 Difference]: Start difference. First operand 313 states and 471 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:27:22,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 12:27:22,293 INFO L93 Difference]: Finished difference Result 882 states and 1313 transitions. [2024-11-16 12:27:22,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 12:27:22,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-16 12:27:22,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 12:27:22,300 INFO L225 Difference]: With dead ends: 882 [2024-11-16 12:27:22,301 INFO L226 Difference]: Without dead ends: 572 [2024-11-16 12:27:22,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 12:27:22,304 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 202 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 12:27:22,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 917 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 12:27:22,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-16 12:27:22,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 308. [2024-11-16 12:27:22,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 251 states have (on average 1.4103585657370519) internal successors, (354), 251 states have internal predecessors, (354), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 12:27:22,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 462 transitions. [2024-11-16 12:27:22,327 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 462 transitions. Word has length 176 [2024-11-16 12:27:22,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 12:27:22,329 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 462 transitions. [2024-11-16 12:27:22,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 12:27:22,329 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 462 transitions. [2024-11-16 12:27:22,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 12:27:22,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:27:22,332 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 12:27:22,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 12:27:22,332 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:27:22,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:27:22,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1215825504, now seen corresponding path program 1 times [2024-11-16 12:27:22,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:27:22,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095971923] [2024-11-16 12:27:22,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:27:22,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:27:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat