./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-52.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 f936db2b47677a90e81718d3591b9d45243b1a66e00c73ec4ccd3f4a235b10d9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 20:57:18,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 20:57:18,982 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 20:57:18,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 20:57:18,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 20:57:19,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 20:57:19,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 20:57:19,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 20:57:19,035 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 20:57:19,036 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 20:57:19,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 20:57:19,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 20:57:19,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 20:57:19,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 20:57:19,039 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 20:57:19,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 20:57:19,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 20:57:19,040 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 20:57:19,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 20:57:19,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 20:57:19,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 20:57:19,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 20:57:19,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 20:57:19,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 20:57:19,044 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 20:57:19,044 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 20:57:19,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 20:57:19,045 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 20:57:19,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 20:57:19,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 20:57:19,046 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 20:57:19,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 20:57:19,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 20:57:19,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 20:57:19,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 20:57:19,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 20:57:19,048 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 20:57:19,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 20:57:19,048 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 20:57:19,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 20:57:19,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 20:57:19,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 20:57:19,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f936db2b47677a90e81718d3591b9d45243b1a66e00c73ec4ccd3f4a235b10d9 [2024-11-18 20:57:19,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 20:57:19,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 20:57:19,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 20:57:19,325 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 20:57:19,326 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 20:57:19,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-52.i [2024-11-18 20:57:20,771 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 20:57:20,974 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 20:57:20,974 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-52.i [2024-11-18 20:57:20,986 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/739e92dd7/6afaf2b056574d169ee2ca5128500688/FLAGaf6b626ba [2024-11-18 20:57:20,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/739e92dd7/6afaf2b056574d169ee2ca5128500688 [2024-11-18 20:57:21,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 20:57:21,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 20:57:21,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 20:57:21,008 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 20:57:21,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 20:57:21,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@622ac922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21, skipping insertion in model container [2024-11-18 20:57:21,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,047 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 20:57:21,215 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-52.i[919,932] [2024-11-18 20:57:21,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 20:57:21,309 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 20:57:21,321 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-52.i[919,932] [2024-11-18 20:57:21,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 20:57:21,381 INFO L204 MainTranslator]: Completed translation [2024-11-18 20:57:21,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21 WrapperNode [2024-11-18 20:57:21,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 20:57:21,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 20:57:21,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 20:57:21,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 20:57:21,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,452 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2024-11-18 20:57:21,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 20:57:21,453 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 20:57:21,453 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 20:57:21,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 20:57:21,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,489 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]. [2024-11-18 20:57:21,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 20:57:21,535 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 20:57:21,535 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 20:57:21,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 20:57:21,536 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (1/1) ... [2024-11-18 20:57:21,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 20:57:21,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 20:57:21,573 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) [2024-11-18 20:57:21,577 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 [2024-11-18 20:57:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 20:57:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 20:57:21,629 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 20:57:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 20:57:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 20:57:21,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 20:57:21,745 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 20:57:21,747 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 20:57:22,248 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-18 20:57:22,248 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 20:57:22,269 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 20:57:22,270 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 20:57:22,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:57:22 BoogieIcfgContainer [2024-11-18 20:57:22,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 20:57:22,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 20:57:22,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 20:57:22,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 20:57:22,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:57:21" (1/3) ... [2024-11-18 20:57:22,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56131219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:57:22, skipping insertion in model container [2024-11-18 20:57:22,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:57:21" (2/3) ... [2024-11-18 20:57:22,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56131219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:57:22, skipping insertion in model container [2024-11-18 20:57:22,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:57:22" (3/3) ... [2024-11-18 20:57:22,282 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-52.i [2024-11-18 20:57:22,298 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 20:57:22,299 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 20:57:22,363 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 20:57:22,369 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;@50d9f787, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 20:57:22,369 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 20:57:22,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-18 20:57:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-18 20:57:22,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:57:22,389 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:57:22,390 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:57:22,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:57:22,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1659906726, now seen corresponding path program 1 times [2024-11-18 20:57:22,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:57:22,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38862693] [2024-11-18 20:57:22,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:57:22,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:57:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:57:22,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2024-11-18 20:57:22,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:57:22,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38862693] [2024-11-18 20:57:22,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38862693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 20:57:22,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353957863] [2024-11-18 20:57:22,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:57:22,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 20:57:22,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 20:57:22,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 20:57:22,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 20:57:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:57:23,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 20:57:23,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 20:57:23,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2024-11-18 20:57:23,098 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 20:57:23,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353957863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:57:23,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 20:57:23,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 20:57:23,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220782053] [2024-11-18 20:57:23,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:57:23,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 20:57:23,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:57:23,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 20:57:23,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 20:57:23,132 INFO L87 Difference]: Start difference. First operand has 105 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-18 20:57:23,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:57:23,166 INFO L93 Difference]: Finished difference Result 203 states and 358 transitions. [2024-11-18 20:57:23,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 20:57:23,169 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 218 [2024-11-18 20:57:23,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:57:23,176 INFO L225 Difference]: With dead ends: 203 [2024-11-18 20:57:23,176 INFO L226 Difference]: Without dead ends: 101 [2024-11-18 20:57:23,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 20:57:23,183 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 20:57:23,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 20:57:23,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-18 20:57:23,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-18 20:57:23,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 65 states have internal predecessors, (90), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-18 20:57:23,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 158 transitions. [2024-11-18 20:57:23,242 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 158 transitions. Word has length 218 [2024-11-18 20:57:23,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:57:23,243 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 158 transitions. [2024-11-18 20:57:23,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-18 20:57:23,244 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 158 transitions. [2024-11-18 20:57:23,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-18 20:57:23,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:57:23,253 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:57:23,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 20:57:23,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 20:57:23,458 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:57:23,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:57:23,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1018310690, now seen corresponding path program 1 times [2024-11-18 20:57:23,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:57:23,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589082517] [2024-11-18 20:57:23,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:57:23,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:57:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:57:24,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-18 20:57:24,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:57:24,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589082517] [2024-11-18 20:57:24,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589082517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:57:24,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:57:24,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 20:57:24,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664182376] [2024-11-18 20:57:24,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:57:24,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 20:57:24,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:57:24,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 20:57:24,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 20:57:24,226 INFO L87 Difference]: Start difference. First operand 101 states and 158 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-18 20:57:24,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:57:24,485 INFO L93 Difference]: Finished difference Result 267 states and 419 transitions. [2024-11-18 20:57:24,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 20:57:24,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 218 [2024-11-18 20:57:24,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:57:24,492 INFO L225 Difference]: With dead ends: 267 [2024-11-18 20:57:24,495 INFO L226 Difference]: Without dead ends: 169 [2024-11-18 20:57:24,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 20:57:24,498 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 100 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 20:57:24,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 599 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 20:57:24,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-18 20:57:24,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2024-11-18 20:57:24,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 113 states have (on average 1.424778761061947) internal successors, (161), 114 states have internal predecessors, (161), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-18 20:57:24,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 261 transitions. [2024-11-18 20:57:24,531 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 261 transitions. Word has length 218 [2024-11-18 20:57:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:57:24,532 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 261 transitions. [2024-11-18 20:57:24,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-18 20:57:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 261 transitions. [2024-11-18 20:57:24,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-18 20:57:24,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:57:24,539 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:57:24,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 20:57:24,540 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:57:24,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:57:24,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1441012516, now seen corresponding path program 1 times [2024-11-18 20:57:24,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:57:24,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054461018] [2024-11-18 20:57:24,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:57:24,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:57:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:57:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-18 20:57:24,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:57:24,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054461018] [2024-11-18 20:57:24,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054461018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:57:24,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:57:24,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 20:57:24,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370634699] [2024-11-18 20:57:24,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:57:24,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 20:57:24,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:57:24,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 20:57:24,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 20:57:24,873 INFO L87 Difference]: Start difference. First operand 166 states and 261 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-18 20:57:24,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:57:24,934 INFO L93 Difference]: Finished difference Result 456 states and 719 transitions. [2024-11-18 20:57:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 20:57:24,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 218 [2024-11-18 20:57:24,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:57:24,943 INFO L225 Difference]: With dead ends: 456 [2024-11-18 20:57:24,943 INFO L226 Difference]: Without dead ends: 293 [2024-11-18 20:57:24,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 20:57:24,947 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 100 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 20:57:24,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 353 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 20:57:24,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-18 20:57:24,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 290. [2024-11-18 20:57:25,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 201 states have (on average 1.4378109452736318) internal successors, (289), 204 states have internal predecessors, (289), 84 states have call successors, (84), 4 states have call predecessors, (84), 4 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-18 20:57:25,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 457 transitions. [2024-11-18 20:57:25,006 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 457 transitions. Word has length 218 [2024-11-18 20:57:25,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:57:25,008 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 457 transitions. [2024-11-18 20:57:25,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-18 20:57:25,008 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 457 transitions. [2024-11-18 20:57:25,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-18 20:57:25,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:57:25,012 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:57:25,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 20:57:25,013 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:57:25,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:57:25,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1575797234, now seen corresponding path program 1 times [2024-11-18 20:57:25,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:57:25,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469047420] [2024-11-18 20:57:25,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:57:25,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:57:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:57:33,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-18 20:57:33,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:57:33,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469047420] [2024-11-18 20:57:33,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469047420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:57:33,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:57:33,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 20:57:33,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466239948] [2024-11-18 20:57:33,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:57:33,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 20:57:33,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:57:33,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 20:57:33,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-18 20:57:33,582 INFO L87 Difference]: Start difference. First operand 290 states and 457 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-18 20:57:40,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:57:40,835 INFO L93 Difference]: Finished difference Result 1306 states and 2025 transitions. [2024-11-18 20:57:40,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-18 20:57:40,835 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 219 [2024-11-18 20:57:40,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:57:40,844 INFO L225 Difference]: With dead ends: 1306 [2024-11-18 20:57:40,844 INFO L226 Difference]: Without dead ends: 1304 [2024-11-18 20:57:40,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=637, Invalid=1813, Unknown=0, NotChecked=0, Total=2450 [2024-11-18 20:57:40,847 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 733 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 20:57:40,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1532 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 20:57:40,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2024-11-18 20:57:40,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 771. [2024-11-18 20:57:40,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 594 states have (on average 1.4848484848484849) internal successors, (882), 600 states have internal predecessors, (882), 168 states have call successors, (168), 8 states have call predecessors, (168), 8 states have return successors, (168), 162 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-18 20:57:40,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1218 transitions. [2024-11-18 20:57:40,938 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1218 transitions. Word has length 219 [2024-11-18 20:57:40,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:57:40,940 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 1218 transitions. [2024-11-18 20:57:40,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-18 20:57:40,940 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1218 transitions. [2024-11-18 20:57:40,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-18 20:57:40,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:57:40,944 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:57:40,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 20:57:40,946 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:57:40,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:57:40,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1130822160, now seen corresponding path program 1 times [2024-11-18 20:57:40,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:57:40,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31803710] [2024-11-18 20:57:40,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:57:40,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:57:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:57:41,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-18 20:57:41,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:57:41,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31803710] [2024-11-18 20:57:41,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31803710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:57:41,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:57:41,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 20:57:41,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820937824] [2024-11-18 20:57:41,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:57:41,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 20:57:41,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:57:41,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 20:57:41,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 20:57:41,228 INFO L87 Difference]: Start difference. First operand 771 states and 1218 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-18 20:57:41,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:57:41,523 INFO L93 Difference]: Finished difference Result 2105 states and 3329 transitions. [2024-11-18 20:57:41,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 20:57:41,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 219 [2024-11-18 20:57:41,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:57:41,533 INFO L225 Difference]: With dead ends: 2105 [2024-11-18 20:57:41,534 INFO L226 Difference]: Without dead ends: 1337 [2024-11-18 20:57:41,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 20:57:41,538 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 199 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 20:57:41,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 732 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 20:57:41,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2024-11-18 20:57:41,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 868. [2024-11-18 20:57:41,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 655 states have (on average 1.465648854961832) internal successors, (960), 662 states have internal predecessors, (960), 202 states have call successors, (202), 10 states have call predecessors, (202), 10 states have return successors, (202), 195 states have call predecessors, (202), 202 states have call successors, (202) [2024-11-18 20:57:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1364 transitions. [2024-11-18 20:57:41,669 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1364 transitions. Word has length 219 [2024-11-18 20:57:41,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:57:41,670 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1364 transitions. [2024-11-18 20:57:41,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-18 20:57:41,671 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1364 transitions. [2024-11-18 20:57:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-18 20:57:41,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:57:41,675 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:57:41,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 20:57:41,675 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:57:41,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:57:41,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1274101518, now seen corresponding path program 1 times [2024-11-18 20:57:41,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:57:41,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877168481] [2024-11-18 20:57:41,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:57:41,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:57:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat