./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.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 73a02241f62dd5f03e40960bce3ebc0277b0698412736895e26f9644edb13c8b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 03:29:12,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 03:29:12,179 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 03:29:12,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 03:29:12,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 03:29:12,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 03:29:12,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 03:29:12,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 03:29:12,236 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 03:29:12,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 03:29:12,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 03:29:12,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 03:29:12,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 03:29:12,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 03:29:12,240 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 03:29:12,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 03:29:12,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 03:29:12,243 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 03:29:12,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 03:29:12,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 03:29:12,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 03:29:12,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 03:29:12,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 03:29:12,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 03:29:12,246 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 03:29:12,246 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 03:29:12,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 03:29:12,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 03:29:12,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 03:29:12,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 03:29:12,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 03:29:12,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 03:29:12,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 03:29:12,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 03:29:12,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 03:29:12,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 03:29:12,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 03:29:12,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 03:29:12,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 03:29:12,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 03:29:12,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 03:29:12,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 03:29:12,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73a02241f62dd5f03e40960bce3ebc0277b0698412736895e26f9644edb13c8b [2024-11-12 03:29:12,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 03:29:12,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 03:29:12,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 03:29:12,567 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 03:29:12,568 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 03:29:12,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2024-11-12 03:29:14,038 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 03:29:14,286 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 03:29:14,290 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2024-11-12 03:29:14,305 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/959f2ea16/311d8833f93d461a82e4b8201d9f7f50/FLAG1a394ea1a [2024-11-12 03:29:14,614 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/959f2ea16/311d8833f93d461a82e4b8201d9f7f50 [2024-11-12 03:29:14,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 03:29:14,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 03:29:14,619 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 03:29:14,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 03:29:14,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 03:29:14,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 03:29:14" (1/1) ... [2024-11-12 03:29:14,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a60e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:14, skipping insertion in model container [2024-11-12 03:29:14,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 03:29:14" (1/1) ... [2024-11-12 03:29:14,665 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 03:29:14,819 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i[919,932] [2024-11-12 03:29:14,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 03:29:14,969 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 03:29:14,979 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i[919,932] [2024-11-12 03:29:15,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 03:29:15,073 INFO L204 MainTranslator]: Completed translation [2024-11-12 03:29:15,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15 WrapperNode [2024-11-12 03:29:15,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 03:29:15,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 03:29:15,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 03:29:15,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 03:29:15,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,163 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 337 [2024-11-12 03:29:15,164 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 03:29:15,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 03:29:15,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 03:29:15,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 03:29:15,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,181 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,208 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]. [2024-11-12 03:29:15,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 03:29:15,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 03:29:15,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 03:29:15,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 03:29:15,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (1/1) ... [2024-11-12 03:29:15,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 03:29:15,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 03:29:15,303 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) [2024-11-12 03:29:15,309 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 [2024-11-12 03:29:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 03:29:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 03:29:15,358 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 03:29:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 03:29:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 03:29:15,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 03:29:15,478 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 03:29:15,480 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 03:29:16,094 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-12 03:29:16,094 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 03:29:16,118 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 03:29:16,119 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 03:29:16,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 03:29:16 BoogieIcfgContainer [2024-11-12 03:29:16,120 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 03:29:16,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 03:29:16,123 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 03:29:16,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 03:29:16,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 03:29:14" (1/3) ... [2024-11-12 03:29:16,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1add4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 03:29:16, skipping insertion in model container [2024-11-12 03:29:16,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:29:15" (2/3) ... [2024-11-12 03:29:16,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1add4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 03:29:16, skipping insertion in model container [2024-11-12 03:29:16,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 03:29:16" (3/3) ... [2024-11-12 03:29:16,131 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2024-11-12 03:29:16,152 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 03:29:16,153 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 03:29:16,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 03:29:16,291 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;@6d1483ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 03:29:16,292 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 03:29:16,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 96 states have internal predecessors, (135), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-12 03:29:16,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-11-12 03:29:16,318 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 03:29:16,319 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 03:29:16,320 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 03:29:16,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 03:29:16,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1831169122, now seen corresponding path program 1 times [2024-11-12 03:29:16,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 03:29:16,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004921682] [2024-11-12 03:29:16,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 03:29:16,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 03:29:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 03:29:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 03:29:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 03:29:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 03:29:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 03:29:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 03:29:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 03:29:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 03:29:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 03:29:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 03:29:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 03:29:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 03:29:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 03:29:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 03:29:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 03:29:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 03:29:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 03:29:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-12 03:29:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-12 03:29:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 03:29:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-12 03:29:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-12 03:29:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-12 03:29:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-12 03:29:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-12 03:29:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-12 03:29:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-12 03:29:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-12 03:29:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-12 03:29:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-12 03:29:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-12 03:29:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-12 03:29:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-12 03:29:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-12 03:29:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-12 03:29:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-12 03:29:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-12 03:29:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-12 03:29:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-11-12 03:29:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-12 03:29:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-12 03:29:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-12 03:29:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-12 03:29:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-12 03:29:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-12 03:29:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-12 03:29:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-12 03:29:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-12 03:29:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:17,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-12 03:29:17,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 03:29:17,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004921682] [2024-11-12 03:29:17,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004921682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 03:29:17,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 03:29:17,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 03:29:17,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757930823] [2024-11-12 03:29:17,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 03:29:17,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 03:29:17,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 03:29:17,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 03:29:17,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 03:29:17,945 INFO L87 Difference]: Start difference. First operand has 146 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 96 states have internal predecessors, (135), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-12 03:29:18,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 03:29:18,375 INFO L93 Difference]: Finished difference Result 425 states and 780 transitions. [2024-11-12 03:29:18,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 03:29:18,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 294 [2024-11-12 03:29:18,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 03:29:18,401 INFO L225 Difference]: With dead ends: 425 [2024-11-12 03:29:18,401 INFO L226 Difference]: Without dead ends: 282 [2024-11-12 03:29:18,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 03:29:18,415 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 134 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 03:29:18,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 649 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 03:29:18,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-12 03:29:18,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 223. [2024-11-12 03:29:18,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 124 states have (on average 1.2903225806451613) internal successors, (160), 124 states have internal predecessors, (160), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-12 03:29:18,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 352 transitions. [2024-11-12 03:29:18,549 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 352 transitions. Word has length 294 [2024-11-12 03:29:18,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 03:29:18,554 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 352 transitions. [2024-11-12 03:29:18,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-12 03:29:18,555 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 352 transitions. [2024-11-12 03:29:18,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-12 03:29:18,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 03:29:18,564 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 03:29:18,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 03:29:18,565 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 03:29:18,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 03:29:18,566 INFO L85 PathProgramCache]: Analyzing trace with hash -392097594, now seen corresponding path program 1 times [2024-11-12 03:29:18,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 03:29:18,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471058041] [2024-11-12 03:29:18,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 03:29:18,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 03:29:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 03:29:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 03:29:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 03:29:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 03:29:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 03:29:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 03:29:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 03:29:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 03:29:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 03:29:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 03:29:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 03:29:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 03:29:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 03:29:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 03:29:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 03:29:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 03:29:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 03:29:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-12 03:29:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-12 03:29:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 03:29:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-12 03:29:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-12 03:29:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-12 03:29:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-12 03:29:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-12 03:29:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-12 03:29:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-12 03:29:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-12 03:29:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-12 03:29:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-12 03:29:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-12 03:29:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-12 03:29:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-12 03:29:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-12 03:29:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-12 03:29:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-12 03:29:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-12 03:29:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-12 03:29:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-11-12 03:29:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-12 03:29:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-12 03:29:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-12 03:29:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-12 03:29:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-12 03:29:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-12 03:29:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-12 03:29:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-12 03:29:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-12 03:29:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 03:29:41,421 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-12 03:29:41,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 03:29:41,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471058041] [2024-11-12 03:29:41,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471058041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 03:29:41,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 03:29:41,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-12 03:29:41,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674988743] [2024-11-12 03:29:41,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 03:29:41,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-12 03:29:41,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 03:29:41,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-12 03:29:41,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-12 03:29:41,430 INFO L87 Difference]: Start difference. First operand 223 states and 352 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-11-12 03:29:45,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 03:29:45,783 INFO L93 Difference]: Finished difference Result 692 states and 1062 transitions. [2024-11-12 03:29:45,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-12 03:29:45,785 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 295 [2024-11-12 03:29:45,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 03:29:45,790 INFO L225 Difference]: With dead ends: 692 [2024-11-12 03:29:45,790 INFO L226 Difference]: Without dead ends: 553 [2024-11-12 03:29:45,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2024-11-12 03:29:45,795 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 1474 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-12 03:29:45,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1764 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-12 03:29:45,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-12 03:29:45,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 420. [2024-11-12 03:29:45,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 267 states have (on average 1.352059925093633) internal successors, (361), 268 states have internal predecessors, (361), 144 states have call successors, (144), 8 states have call predecessors, (144), 8 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-12 03:29:45,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 649 transitions. [2024-11-12 03:29:45,897 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 649 transitions. Word has length 295 [2024-11-12 03:29:45,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 03:29:45,898 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 649 transitions. [2024-11-12 03:29:45,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-11-12 03:29:45,898 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 649 transitions. [2024-11-12 03:29:45,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-12 03:29:45,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 03:29:45,903 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 03:29:45,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 03:29:45,904 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 03:29:45,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 03:29:45,904 INFO L85 PathProgramCache]: Analyzing trace with hash 287960776, now seen corresponding path program 1 times [2024-11-12 03:29:45,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 03:29:45,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513218703] [2024-11-12 03:29:45,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 03:29:45,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 03:29:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat