./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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-ps-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 c8e6a4b29406119efb89376103b682bde5f3a12f7939ad220de065669d2eef17 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 22:27:22,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:27:22,336 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 22:27:22,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:27:22,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 22:27:22,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:27:22,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 22:27:22,383 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 22:27:22,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 22:27:22,387 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 22:27:22,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:27:22,388 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 22:27:22,388 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:27:22,389 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:27:22,389 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 22:27:22,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:27:22,390 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:27:22,390 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:27:22,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:27:22,391 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:27:22,391 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:27:22,391 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:27:22,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:27:22,392 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:27:22,392 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:27:22,392 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:27:22,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:27:22,393 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:27:22,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:27:22,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 22:27:22,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 22:27:22,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 22:27:22,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:27:22,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:27:22,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:27:22,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:27:22,394 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 22:27:22,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:27:22,395 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 22:27:22,395 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 22:27:22,397 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 22:27:22,397 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 22:27:22,397 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8e6a4b29406119efb89376103b682bde5f3a12f7939ad220de065669d2eef17 [2024-11-08 22:27:22,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:27:22,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:27:22,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:27:22,672 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:27:22,673 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:27:22,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-52.i [2024-11-08 22:27:24,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:27:24,330 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:27:24,331 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-52.i [2024-11-08 22:27:24,342 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba106c60/0ce8c68d5eb4496d98110b244db1cc07/FLAG7048cf565 [2024-11-08 22:27:24,358 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba106c60/0ce8c68d5eb4496d98110b244db1cc07 [2024-11-08 22:27:24,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:27:24,363 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:27:24,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:27:24,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:27:24,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:27:24,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761362e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24, skipping insertion in model container [2024-11-08 22:27:24,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:27:24,602 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-ps-cn_file-52.i[919,932] [2024-11-08 22:27:24,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:27:24,720 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:27:24,734 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-ps-cn_file-52.i[919,932] [2024-11-08 22:27:24,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:27:24,787 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:27:24,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24 WrapperNode [2024-11-08 22:27:24,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:27:24,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:27:24,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:27:24,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:27:24,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,848 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2024-11-08 22:27:24,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:27:24,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:27:24,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:27:24,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:27:24,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,867 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,893 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]. [2024-11-08 22:27:24,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,903 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,919 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:27:24,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:27:24,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:27:24,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:27:24,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (1/1) ... [2024-11-08 22:27:24,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:27:24,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 22:27:24,961 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) [2024-11-08 22:27:24,965 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 [2024-11-08 22:27:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:27:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 22:27:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 22:27:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 22:27:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:27:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:27:25,090 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:27:25,092 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:27:25,569 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 22:27:25,570 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:27:25,587 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:27:25,588 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:27:25,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:27:25 BoogieIcfgContainer [2024-11-08 22:27:25,589 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:27:25,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 22:27:25,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 22:27:25,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 22:27:25,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 10:27:24" (1/3) ... [2024-11-08 22:27:25,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@868f91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:27:25, skipping insertion in model container [2024-11-08 22:27:25,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:27:24" (2/3) ... [2024-11-08 22:27:25,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@868f91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:27:25, skipping insertion in model container [2024-11-08 22:27:25,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:27:25" (3/3) ... [2024-11-08 22:27:25,599 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-52.i [2024-11-08 22:27:25,616 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 22:27:25,616 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 22:27:25,685 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 22:27:25,691 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;@1657f01d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 22:27:25,692 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 22:27:25,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 69 states have (on average 1.4202898550724639) internal successors, (98), 70 states have internal predecessors, (98), 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) [2024-11-08 22:27:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-08 22:27:25,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:27:25,718 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] [2024-11-08 22:27:25,718 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:27:25,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:27:25,725 INFO L85 PathProgramCache]: Analyzing trace with hash 134201802, now seen corresponding path program 1 times [2024-11-08 22:27:25,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:27:25,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959185867] [2024-11-08 22:27:25,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:27:25,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:27:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:27:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:27:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:27:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:27:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:27:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:27:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:27:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:27:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:27:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:27:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:27:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:27:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:27:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:27:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:27:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:27:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:27:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:27:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 22:27:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:27:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:27:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:27:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 22:27:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:27:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 22:27:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:27:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 22:27:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 22:27:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 22:27:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-08 22:27:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-08 22:27:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-08 22:27:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 22:27:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 22:27:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 22:27:26,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:27:26,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959185867] [2024-11-08 22:27:26,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959185867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:27:26,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:27:26,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 22:27:26,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252879833] [2024-11-08 22:27:26,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:27:26,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 22:27:26,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:27:26,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 22:27:26,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 22:27:26,443 INFO L87 Difference]: Start difference. First operand has 106 states, 69 states have (on average 1.4202898550724639) internal successors, (98), 70 states have internal predecessors, (98), 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 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-08 22:27:26,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:27:26,492 INFO L93 Difference]: Finished difference Result 205 states and 360 transitions. [2024-11-08 22:27:26,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 22:27:26,495 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (34), 1 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 219 [2024-11-08 22:27:26,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:27:26,504 INFO L225 Difference]: With dead ends: 205 [2024-11-08 22:27:26,505 INFO L226 Difference]: Without dead ends: 102 [2024-11-08 22:27:26,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 22:27:26,516 INFO L432 NwaCegarLoop]: 159 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, 159 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 [2024-11-08 22:27:26,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:27:26,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-08 22:27:26,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-08 22:27:26,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.378787878787879) internal successors, (91), 66 states have internal predecessors, (91), 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) [2024-11-08 22:27:26,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 159 transitions. [2024-11-08 22:27:26,578 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 159 transitions. Word has length 219 [2024-11-08 22:27:26,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:27:26,579 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 159 transitions. [2024-11-08 22:27:26,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-08 22:27:26,580 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 159 transitions. [2024-11-08 22:27:26,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-08 22:27:26,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:27:26,587 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] [2024-11-08 22:27:26,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 22:27:26,587 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:27:26,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:27:26,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1719561166, now seen corresponding path program 1 times [2024-11-08 22:27:26,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:27:26,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929886103] [2024-11-08 22:27:26,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:27:26,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:27:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:27:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:27:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:27:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:27:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:27:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:27:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:26,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:27:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:27:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:27:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:27:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:27:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:27:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:27:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:27:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:27:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:27:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:27:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:27:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 22:27:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:27:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:27:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:27:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 22:27:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:27:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 22:27:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:27:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 22:27:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 22:27:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 22:27:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-08 22:27:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-08 22:27:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-08 22:27:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 22:27:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 22:27:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 22:27:27,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:27:27,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929886103] [2024-11-08 22:27:27,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929886103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:27:27,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:27:27,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 22:27:27,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498205076] [2024-11-08 22:27:27,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:27:27,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 22:27:27,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:27:27,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 22:27:27,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 22:27:27,227 INFO L87 Difference]: Start difference. First operand 102 states and 159 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) [2024-11-08 22:27:27,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:27:27,495 INFO L93 Difference]: Finished difference Result 201 states and 315 transitions. [2024-11-08 22:27:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 22:27:27,496 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 [2024-11-08 22:27:27,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:27:27,499 INFO L225 Difference]: With dead ends: 201 [2024-11-08 22:27:27,499 INFO L226 Difference]: Without dead ends: 102 [2024-11-08 22:27:27,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 22:27:27,501 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 145 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 22:27:27,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 229 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 22:27:27,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-08 22:27:27,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-08 22:27:27,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 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) [2024-11-08 22:27:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 158 transitions. [2024-11-08 22:27:27,519 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 158 transitions. Word has length 219 [2024-11-08 22:27:27,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:27:27,521 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 158 transitions. [2024-11-08 22:27:27,521 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) [2024-11-08 22:27:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 158 transitions. [2024-11-08 22:27:27,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-08 22:27:27,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:27:27,524 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] [2024-11-08 22:27:27,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 22:27:27,525 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:27:27,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:27:27,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1295542452, now seen corresponding path program 1 times [2024-11-08 22:27:27,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:27:27,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967755168] [2024-11-08 22:27:27,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:27:27,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:27:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:27:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:27:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:27:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:27:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:27:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:27:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:27:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:27:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:27:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:27:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:27:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:27:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:27:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:27:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:27:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:27:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:27:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:27:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 22:27:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:27:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:27:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:27:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 22:27:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:27,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:27:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 22:27:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:27:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 22:27:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 22:27:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 22:27:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-08 22:27:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-08 22:27:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-08 22:27:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 22:27:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 22:27:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 22:27:28,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:27:28,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967755168] [2024-11-08 22:27:28,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967755168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:27:28,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:27:28,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 22:27:28,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973680599] [2024-11-08 22:27:28,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:27:28,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 22:27:28,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:27:28,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 22:27:28,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 22:27:28,021 INFO L87 Difference]: Start difference. First operand 102 states and 158 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) [2024-11-08 22:27:28,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:27:28,241 INFO L93 Difference]: Finished difference Result 272 states and 422 transitions. [2024-11-08 22:27:28,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 22:27:28,242 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 [2024-11-08 22:27:28,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:27:28,244 INFO L225 Difference]: With dead ends: 272 [2024-11-08 22:27:28,244 INFO L226 Difference]: Without dead ends: 173 [2024-11-08 22:27:28,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 22:27:28,250 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 106 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 22:27:28,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 634 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 22:27:28,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-08 22:27:28,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2024-11-08 22:27:28,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 117 states have (on average 1.4017094017094016) internal successors, (164), 118 states have internal predecessors, (164), 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) [2024-11-08 22:27:28,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 264 transitions. [2024-11-08 22:27:28,280 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 264 transitions. Word has length 219 [2024-11-08 22:27:28,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:27:28,282 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 264 transitions. [2024-11-08 22:27:28,282 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) [2024-11-08 22:27:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 264 transitions. [2024-11-08 22:27:28,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-08 22:27:28,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:27:28,288 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] [2024-11-08 22:27:28,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 22:27:28,288 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:27:28,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:27:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1429555958, now seen corresponding path program 1 times [2024-11-08 22:27:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:27:28,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727524449] [2024-11-08 22:27:28,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:27:28,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:27:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:27:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:27:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:27:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:27:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:27:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:27:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:27:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:27:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:27:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:27:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:27:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:27:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:27:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:27:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:27:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:27:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:27:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:27:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 22:27:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:27:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:27:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:27:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 22:27:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:27:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 22:27:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:27:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 22:27:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 22:27:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 22:27:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-08 22:27:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-08 22:27:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-08 22:27:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 22:27:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 22:27:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 22:27:28,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:27:28,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727524449] [2024-11-08 22:27:28,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727524449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:27:28,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:27:28,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 22:27:28,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057338561] [2024-11-08 22:27:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:27:28,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 22:27:28,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:27:28,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 22:27:28,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:27:28,685 INFO L87 Difference]: Start difference. First operand 170 states and 264 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2024-11-08 22:27:28,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:27:28,742 INFO L93 Difference]: Finished difference Result 470 states and 731 transitions. [2024-11-08 22:27:28,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 22:27:28,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 [2024-11-08 22:27:28,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:27:28,748 INFO L225 Difference]: With dead ends: 470 [2024-11-08 22:27:28,749 INFO L226 Difference]: Without dead ends: 303 [2024-11-08 22:27:28,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:27:28,751 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 98 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 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 [2024-11-08 22:27:28,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 353 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:27:28,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-08 22:27:28,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 300. [2024-11-08 22:27:28,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 211 states have (on average 1.4123222748815165) internal successors, (298), 214 states have internal predecessors, (298), 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) [2024-11-08 22:27:28,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 466 transitions. [2024-11-08 22:27:28,805 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 466 transitions. Word has length 219 [2024-11-08 22:27:28,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:27:28,806 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 466 transitions. [2024-11-08 22:27:28,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2024-11-08 22:27:28,806 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 466 transitions. [2024-11-08 22:27:28,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-08 22:27:28,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:27:28,810 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, 1] [2024-11-08 22:27:28,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 22:27:28,810 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:27:28,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:27:28,811 INFO L85 PathProgramCache]: Analyzing trace with hash -474742395, now seen corresponding path program 1 times [2024-11-08 22:27:28,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:27:28,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633332631] [2024-11-08 22:27:28,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:27:28,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:27:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:27:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:27:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:27:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:27:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:27:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:27:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:27:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:27:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:27:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:27:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:27:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:27:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:27:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:27:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:27:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:27:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:27:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:27:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 22:27:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:27:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:27:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:27:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 22:27:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:27:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 22:27:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:27:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 22:27:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 22:27:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:40,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 22:27:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:41,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-08 22:27:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:41,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-08 22:27:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:41,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-08 22:27:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:41,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 22:27:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:41,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 22:27:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:27:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 22:27:41,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:27:41,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633332631] [2024-11-08 22:27:41,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633332631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:27:41,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:27:41,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-08 22:27:41,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750987004] [2024-11-08 22:27:41,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:27:41,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 22:27:41,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:27:41,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 22:27:41,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-08 22:27:41,183 INFO L87 Difference]: Start difference. First operand 300 states and 466 transitions. Second operand has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-08 22:27:50,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:27:50,476 INFO L93 Difference]: Finished difference Result 725 states and 1082 transitions. [2024-11-08 22:27:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-08 22:27:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 220 [2024-11-08 22:27:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:27:50,483 INFO L225 Difference]: With dead ends: 725 [2024-11-08 22:27:50,484 INFO L226 Difference]: Without dead ends: 723 [2024-11-08 22:27:50,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=500, Invalid=1570, Unknown=0, NotChecked=0, Total=2070 [2024-11-08 22:27:50,487 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 471 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 22:27:50,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1208 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 22:27:50,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2024-11-08 22:27:50,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 545. [2024-11-08 22:27:50,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.4619047619047618) internal successors, (614), 423 states have internal predecessors, (614), 118 states have call successors, (118), 6 states have call predecessors, (118), 6 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-08 22:27:50,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 850 transitions. [2024-11-08 22:27:50,553 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 850 transitions. Word has length 220 [2024-11-08 22:27:50,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:27:50,554 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 850 transitions. [2024-11-08 22:27:50,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-08 22:27:50,555 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 850 transitions. [2024-11-08 22:27:50,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-08 22:27:50,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:27:50,558 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, 1] [2024-11-08 22:27:50,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 22:27:50,559 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:27:50,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:27:50,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1789304699, now seen corresponding path program 1 times [2024-11-08 22:27:50,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:27:50,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126148571] [2024-11-08 22:27:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:27:50,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:27:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat