./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-33.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 cf462c69ab53d8bd054938ba0375925353699b3c48828163d51079382ad943c2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:20:24,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:20:24,492 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:20:24,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:20:24,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:20:24,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:20:24,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:20:24,513 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:20:24,518 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:20:24,518 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:20:24,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:20:24,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:20:24,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:20:24,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:20:24,519 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:20:24,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:20:24,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:20:24,520 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:20:24,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:20:24,520 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:20:24,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:20:24,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:20:24,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:20:24,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:20:24,524 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:20:24,524 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:20:24,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:20:24,524 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:20:24,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:20:24,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:20:24,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:20:24,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:20:24,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:20:24,525 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:20:24,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:20:24,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:20:24,526 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:20:24,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:20:24,527 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:20:24,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:20:24,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:20:24,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:20:24,528 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf462c69ab53d8bd054938ba0375925353699b3c48828163d51079382ad943c2 [2024-11-18 19:20:24,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:20:24,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:20:24,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:20:24,753 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:20:24,753 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:20:24,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-33.i [2024-11-18 19:20:26,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:20:26,350 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:20:26,351 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-33.i [2024-11-18 19:20:26,359 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe394f9d/bd459c2f63654035a5cf291c4930974a/FLAG3f0eddeb0 [2024-11-18 19:20:26,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe394f9d/bd459c2f63654035a5cf291c4930974a [2024-11-18 19:20:26,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:20:26,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:20:26,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:20:26,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:20:26,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:20:26,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:20:26" (1/1) ... [2024-11-18 19:20:26,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56be9673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:26, skipping insertion in model container [2024-11-18 19:20:26,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:20:26" (1/1) ... [2024-11-18 19:20:26,760 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:20:26,915 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_fillercodesize_ps-cn-10_file-33.i[915,928] [2024-11-18 19:20:26,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:20:26,993 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:20:27,005 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_fillercodesize_ps-cn-10_file-33.i[915,928] [2024-11-18 19:20:27,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:20:27,067 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:20:27,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27 WrapperNode [2024-11-18 19:20:27,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:20:27,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:20:27,070 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:20:27,070 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:20:27,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,088 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,118 INFO L138 Inliner]: procedures = 26, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 195 [2024-11-18 19:20:27,119 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:20:27,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:20:27,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:20:27,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:20:27,135 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,141 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,162 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 19:20:27,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:20:27,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:20:27,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:20:27,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:20:27,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (1/1) ... [2024-11-18 19:20:27,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:20:27,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:20:27,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 19:20:27,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 19:20:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:20:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:20:27,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:20:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:20:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:20:27,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:20:27,348 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:20:27,350 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:20:27,657 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-18 19:20:27,657 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:20:27,668 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:20:27,668 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:20:27,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:20:27 BoogieIcfgContainer [2024-11-18 19:20:27,669 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:20:27,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:20:27,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:20:27,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:20:27,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:20:26" (1/3) ... [2024-11-18 19:20:27,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773fbe57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:20:27, skipping insertion in model container [2024-11-18 19:20:27,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:20:27" (2/3) ... [2024-11-18 19:20:27,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773fbe57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:20:27, skipping insertion in model container [2024-11-18 19:20:27,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:20:27" (3/3) ... [2024-11-18 19:20:27,675 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-33.i [2024-11-18 19:20:27,690 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:20:27,691 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:20:27,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:20:27,767 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;@dc98d04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:20:27,767 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:20:27,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 54 states have internal predecessors, (72), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-18 19:20:27,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-18 19:20:27,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:20:27,784 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:20:27,785 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:20:27,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:20:27,789 INFO L85 PathProgramCache]: Analyzing trace with hash -951763996, now seen corresponding path program 1 times [2024-11-18 19:20:27,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:20:27,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678758660] [2024-11-18 19:20:27,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:20:27,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:20:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:20:28,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-18 19:20:28,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:20:28,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678758660] [2024-11-18 19:20:28,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678758660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:20:28,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:20:28,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 19:20:28,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727103800] [2024-11-18 19:20:28,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:20:28,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:20:28,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:20:28,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:20:28,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:20:28,260 INFO L87 Difference]: Start difference. First operand has 85 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 54 states have internal predecessors, (72), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-18 19:20:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:20:28,293 INFO L93 Difference]: Finished difference Result 163 states and 283 transitions. [2024-11-18 19:20:28,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:20:28,295 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 182 [2024-11-18 19:20:28,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:20:28,303 INFO L225 Difference]: With dead ends: 163 [2024-11-18 19:20:28,303 INFO L226 Difference]: Without dead ends: 81 [2024-11-18 19:20:28,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:20:28,309 INFO L432 NwaCegarLoop]: 122 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, 122 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:20:28,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:20:28,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-18 19:20:28,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-18 19:20:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 50 states have (on average 1.28) internal successors, (64), 50 states have internal predecessors, (64), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-18 19:20:28,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 122 transitions. [2024-11-18 19:20:28,350 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 122 transitions. Word has length 182 [2024-11-18 19:20:28,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:20:28,354 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 122 transitions. [2024-11-18 19:20:28,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-18 19:20:28,354 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 122 transitions. [2024-11-18 19:20:28,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-18 19:20:28,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:20:28,359 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:20:28,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 19:20:28,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:20:28,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:20:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1568195938, now seen corresponding path program 1 times [2024-11-18 19:20:28,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:20:28,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816853542] [2024-11-18 19:20:28,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:20:28,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:20:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:20:29,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-18 19:20:29,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:20:29,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816853542] [2024-11-18 19:20:29,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816853542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:20:29,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:20:29,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:20:29,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112956837] [2024-11-18 19:20:29,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:20:29,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:20:29,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:20:29,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:20:29,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:20:29,110 INFO L87 Difference]: Start difference. First operand 81 states and 122 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-18 19:20:29,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:20:29,408 INFO L93 Difference]: Finished difference Result 242 states and 368 transitions. [2024-11-18 19:20:29,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:20:29,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 182 [2024-11-18 19:20:29,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:20:29,414 INFO L225 Difference]: With dead ends: 242 [2024-11-18 19:20:29,416 INFO L226 Difference]: Without dead ends: 164 [2024-11-18 19:20:29,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:20:29,417 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 80 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:20:29,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 303 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:20:29,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-18 19:20:29,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 150. [2024-11-18 19:20:29,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 89 states have (on average 1.2696629213483146) internal successors, (113), 89 states have internal predecessors, (113), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-18 19:20:29,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 229 transitions. [2024-11-18 19:20:29,458 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 229 transitions. Word has length 182 [2024-11-18 19:20:29,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:20:29,459 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 229 transitions. [2024-11-18 19:20:29,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-18 19:20:29,459 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 229 transitions. [2024-11-18 19:20:29,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-18 19:20:29,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:20:29,461 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:20:29,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:20:29,462 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:20:29,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:20:29,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1387003611, now seen corresponding path program 1 times [2024-11-18 19:20:29,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:20:29,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614884303] [2024-11-18 19:20:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:20:29,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:20:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:20:29,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-18 19:20:29,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:20:29,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614884303] [2024-11-18 19:20:29,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614884303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:20:29,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:20:29,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:20:29,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823403614] [2024-11-18 19:20:29,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:20:29,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:20:29,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:20:29,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:20:29,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:20:29,659 INFO L87 Difference]: Start difference. First operand 150 states and 229 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-18 19:20:29,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:20:29,838 INFO L93 Difference]: Finished difference Result 251 states and 379 transitions. [2024-11-18 19:20:29,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:20:29,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 183 [2024-11-18 19:20:29,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:20:29,840 INFO L225 Difference]: With dead ends: 251 [2024-11-18 19:20:29,840 INFO L226 Difference]: Without dead ends: 160 [2024-11-18 19:20:29,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:20:29,842 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 77 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:20:29,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 308 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:20:29,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-18 19:20:29,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 151. [2024-11-18 19:20:29,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 90 states have (on average 1.2555555555555555) internal successors, (113), 90 states have internal predecessors, (113), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-18 19:20:29,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 229 transitions. [2024-11-18 19:20:29,863 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 229 transitions. Word has length 183 [2024-11-18 19:20:29,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:20:29,864 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 229 transitions. [2024-11-18 19:20:29,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-18 19:20:29,864 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 229 transitions. [2024-11-18 19:20:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-18 19:20:29,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:20:29,866 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:20:29,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:20:29,867 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:20:29,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:20:29,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1451667105, now seen corresponding path program 1 times [2024-11-18 19:20:29,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:20:29,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437308132] [2024-11-18 19:20:29,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:20:29,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:20:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat