./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-66.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-66.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 12bb580d008789dc82bd22e84ab6c6fa66b09798075ab5a16232b78d93de6996 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:24:09,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:24:09,375 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:24:09,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:24:09,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:24:09,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:24:09,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:24:09,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:24:09,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:24:09,408 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:24:09,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:24:09,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:24:09,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:24:09,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:24:09,410 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:24:09,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:24:09,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:24:09,411 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:24:09,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:24:09,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:24:09,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:24:09,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:24:09,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:24:09,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:24:09,416 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:24:09,416 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:24:09,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:24:09,416 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:24:09,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:24:09,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:24:09,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:24:09,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:24:09,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:24:09,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:24:09,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:24:09,418 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:24:09,418 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:24:09,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:24:09,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:24:09,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:24:09,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:24:09,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:24:09,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12bb580d008789dc82bd22e84ab6c6fa66b09798075ab5a16232b78d93de6996 [2024-11-18 19:24:09,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:24:09,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:24:09,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:24:09,711 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:24:09,712 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:24:09,713 INFO L431 ainManager$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-66.i [2024-11-18 19:24:11,111 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:24:11,283 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:24:11,283 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-66.i [2024-11-18 19:24:11,292 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18314849e/2d6582fce0b04fbf82e3d5113f69d018/FLAGb861050b6 [2024-11-18 19:24:11,303 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18314849e/2d6582fce0b04fbf82e3d5113f69d018 [2024-11-18 19:24:11,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:24:11,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:24:11,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:24:11,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:24:11,312 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:24:11,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0e8a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11, skipping insertion in model container [2024-11-18 19:24:11,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,344 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:24:11,487 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-66.i[915,928] [2024-11-18 19:24:11,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:24:11,560 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:24:11,570 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-66.i[915,928] [2024-11-18 19:24:11,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:24:11,611 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:24:11,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11 WrapperNode [2024-11-18 19:24:11,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:24:11,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:24:11,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:24:11,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:24:11,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,659 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 199 [2024-11-18 19:24:11,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:24:11,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:24:11,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:24:11,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:24:11,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,708 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,749 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 19:24:11,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,765 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:24:11,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:24:11,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:24:11,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:24:11,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (1/1) ... [2024-11-18 19:24:11,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:24:11,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:24:11,822 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 19:24:11,836 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 19:24:11,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:24:11,874 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:24:11,875 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:24:11,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:24:11,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:24:11,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:24:11,939 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:24:11,941 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:24:12,198 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-18 19:24:12,199 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:24:12,213 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:24:12,214 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:24:12,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:24:12 BoogieIcfgContainer [2024-11-18 19:24:12,214 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:24:12,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:24:12,217 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:24:12,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:24:12,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:24:11" (1/3) ... [2024-11-18 19:24:12,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c02f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:24:12, skipping insertion in model container [2024-11-18 19:24:12,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:24:11" (2/3) ... [2024-11-18 19:24:12,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c02f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:24:12, skipping insertion in model container [2024-11-18 19:24:12,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:24:12" (3/3) ... [2024-11-18 19:24:12,224 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-66.i [2024-11-18 19:24:12,250 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:24:12,250 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:24:12,320 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:24:12,326 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;@32586a6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:24:12,327 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:24:12,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 52 states have internal predecessors, (70), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-18 19:24:12,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-18 19:24:12,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:12,345 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:12,346 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:12,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:12,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1132790254, now seen corresponding path program 1 times [2024-11-18 19:24:12,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:12,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62137782] [2024-11-18 19:24:12,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:12,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-18 19:24:12,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:12,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62137782] [2024-11-18 19:24:12,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62137782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:24:12,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197533860] [2024-11-18 19:24:12,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:12,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:24:12,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:24:12,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:24:12,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:24:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:12,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:24:12,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:24:12,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-18 19:24:12,877 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:24:12,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197533860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:12,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:24:12,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:24:12,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274590554] [2024-11-18 19:24:12,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:12,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:24:12,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:12,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:24:12,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:24:12,906 INFO L87 Difference]: Start difference. First operand has 87 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 52 states have internal predecessors, (70), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-18 19:24:12,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:12,931 INFO L93 Difference]: Finished difference Result 167 states and 299 transitions. [2024-11-18 19:24:12,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:24:12,937 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 204 [2024-11-18 19:24:12,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:12,944 INFO L225 Difference]: With dead ends: 167 [2024-11-18 19:24:12,944 INFO L226 Difference]: Without dead ends: 83 [2024-11-18 19:24:12,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 205 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 19:24:12,949 INFO L432 NwaCegarLoop]: 129 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, 129 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 19:24:12,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:24:12,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-18 19:24:12,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-18 19:24:12,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 48 states have (on average 1.3125) internal successors, (63), 48 states have internal predecessors, (63), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-18 19:24:12,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 129 transitions. [2024-11-18 19:24:12,988 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 129 transitions. Word has length 204 [2024-11-18 19:24:12,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:12,988 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 129 transitions. [2024-11-18 19:24:12,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-18 19:24:12,989 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 129 transitions. [2024-11-18 19:24:12,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-18 19:24:12,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:12,992 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:13,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:24:13,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:24:13,196 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:13,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:13,197 INFO L85 PathProgramCache]: Analyzing trace with hash 569352048, now seen corresponding path program 1 times [2024-11-18 19:24:13,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:13,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072213219] [2024-11-18 19:24:13,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:13,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:13,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:13,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072213219] [2024-11-18 19:24:13,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072213219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:13,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:13,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:24:13,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946154485] [2024-11-18 19:24:13,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:13,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:24:13,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:13,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:24:13,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:24:13,484 INFO L87 Difference]: Start difference. First operand 83 states and 129 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:13,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:13,561 INFO L93 Difference]: Finished difference Result 242 states and 379 transitions. [2024-11-18 19:24:13,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:24:13,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-18 19:24:13,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:13,566 INFO L225 Difference]: With dead ends: 242 [2024-11-18 19:24:13,566 INFO L226 Difference]: Without dead ends: 162 [2024-11-18 19:24:13,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:24:13,568 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 117 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:13,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 236 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:24:13,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-18 19:24:13,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 160. [2024-11-18 19:24:13,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 91 states have internal predecessors, (116), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 19:24:13,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 248 transitions. [2024-11-18 19:24:13,603 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 248 transitions. Word has length 204 [2024-11-18 19:24:13,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:13,604 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 248 transitions. [2024-11-18 19:24:13,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:13,605 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 248 transitions. [2024-11-18 19:24:13,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-18 19:24:13,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:13,607 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:13,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:24:13,608 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:13,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:13,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1378698674, now seen corresponding path program 1 times [2024-11-18 19:24:13,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:13,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080105296] [2024-11-18 19:24:13,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:13,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:14,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:14,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080105296] [2024-11-18 19:24:14,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080105296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:14,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:14,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:24:14,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797040719] [2024-11-18 19:24:14,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:14,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:24:14,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:14,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:24:14,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:24:14,370 INFO L87 Difference]: Start difference. First operand 160 states and 248 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-18 19:24:14,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:14,702 INFO L93 Difference]: Finished difference Result 381 states and 583 transitions. [2024-11-18 19:24:14,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:24:14,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 204 [2024-11-18 19:24:14,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:14,709 INFO L225 Difference]: With dead ends: 381 [2024-11-18 19:24:14,709 INFO L226 Difference]: Without dead ends: 224 [2024-11-18 19:24:14,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:24:14,711 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 146 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:14,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 210 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:24:14,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-18 19:24:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 218. [2024-11-18 19:24:14,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 135 states have (on average 1.2962962962962963) internal successors, (175), 137 states have internal predecessors, (175), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 19:24:14,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 331 transitions. [2024-11-18 19:24:14,761 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 331 transitions. Word has length 204 [2024-11-18 19:24:14,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:14,763 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 331 transitions. [2024-11-18 19:24:14,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-18 19:24:14,764 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 331 transitions. [2024-11-18 19:24:14,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-18 19:24:14,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:14,768 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:14,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:24:14,768 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:14,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:14,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1965504688, now seen corresponding path program 1 times [2024-11-18 19:24:14,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:14,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023793345] [2024-11-18 19:24:14,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:14,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:18,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:18,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023793345] [2024-11-18 19:24:18,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023793345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:18,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:18,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 19:24:18,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701452409] [2024-11-18 19:24:18,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:18,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 19:24:18,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:18,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 19:24:18,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:24:18,299 INFO L87 Difference]: Start difference. First operand 218 states and 331 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:18,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:18,974 INFO L93 Difference]: Finished difference Result 289 states and 408 transitions. [2024-11-18 19:24:18,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 19:24:18,975 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-18 19:24:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:18,978 INFO L225 Difference]: With dead ends: 289 [2024-11-18 19:24:18,978 INFO L226 Difference]: Without dead ends: 287 [2024-11-18 19:24:18,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-18 19:24:18,979 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 166 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:18,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 695 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:24:18,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-18 19:24:19,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 235. [2024-11-18 19:24:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 152 states have internal predecessors, (193), 78 states have call successors, (78), 6 states have call predecessors, (78), 6 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 19:24:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 349 transitions. [2024-11-18 19:24:19,011 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 349 transitions. Word has length 204 [2024-11-18 19:24:19,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:19,011 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 349 transitions. [2024-11-18 19:24:19,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 349 transitions. [2024-11-18 19:24:19,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-18 19:24:19,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:19,013 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:19,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:24:19,014 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:19,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:19,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1967351730, now seen corresponding path program 1 times [2024-11-18 19:24:19,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:19,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667617760] [2024-11-18 19:24:19,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:19,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:23,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:23,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:23,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667617760] [2024-11-18 19:24:23,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667617760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:23,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:23,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 19:24:23,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022465385] [2024-11-18 19:24:23,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:23,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 19:24:23,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:23,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 19:24:23,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:24:23,931 INFO L87 Difference]: Start difference. First operand 235 states and 349 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:25,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:25,498 INFO L93 Difference]: Finished difference Result 287 states and 406 transitions. [2024-11-18 19:24:25,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 19:24:25,501 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-18 19:24:25,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:25,503 INFO L225 Difference]: With dead ends: 287 [2024-11-18 19:24:25,503 INFO L226 Difference]: Without dead ends: 285 [2024-11-18 19:24:25,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-18 19:24:25,505 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 141 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:25,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 814 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 19:24:25,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-18 19:24:25,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 235. [2024-11-18 19:24:25,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 152 states have internal predecessors, (193), 78 states have call successors, (78), 6 states have call predecessors, (78), 6 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 19:24:25,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 349 transitions. [2024-11-18 19:24:25,534 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 349 transitions. Word has length 204 [2024-11-18 19:24:25,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:25,535 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 349 transitions. [2024-11-18 19:24:25,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:25,535 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 349 transitions. [2024-11-18 19:24:25,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-18 19:24:25,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:25,537 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:25,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:24:25,538 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:25,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:25,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1649404238, now seen corresponding path program 1 times [2024-11-18 19:24:25,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:25,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368883244] [2024-11-18 19:24:25,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:25,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:28,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:28,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368883244] [2024-11-18 19:24:28,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368883244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:28,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:28,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 19:24:28,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330948832] [2024-11-18 19:24:28,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:28,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 19:24:28,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:28,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 19:24:28,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:24:28,936 INFO L87 Difference]: Start difference. First operand 235 states and 349 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:29,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:29,665 INFO L93 Difference]: Finished difference Result 294 states and 414 transitions. [2024-11-18 19:24:29,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 19:24:29,666 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-18 19:24:29,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:29,668 INFO L225 Difference]: With dead ends: 294 [2024-11-18 19:24:29,668 INFO L226 Difference]: Without dead ends: 292 [2024-11-18 19:24:29,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-18 19:24:29,669 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 166 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:29,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 706 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:24:29,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-18 19:24:29,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 239. [2024-11-18 19:24:29,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 154 states have (on average 1.2922077922077921) internal successors, (199), 156 states have internal predecessors, (199), 78 states have call successors, (78), 6 states have call predecessors, (78), 6 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 19:24:29,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 355 transitions. [2024-11-18 19:24:29,687 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 355 transitions. Word has length 204 [2024-11-18 19:24:29,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:29,688 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 355 transitions. [2024-11-18 19:24:29,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 355 transitions. [2024-11-18 19:24:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-18 19:24:29,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:29,689 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:29,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:24:29,690 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:29,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:29,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1647557196, now seen corresponding path program 1 times [2024-11-18 19:24:29,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:29,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586375129] [2024-11-18 19:24:29,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:29,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:34,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:34,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586375129] [2024-11-18 19:24:34,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586375129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:34,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:34,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 19:24:34,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839820457] [2024-11-18 19:24:34,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:34,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 19:24:34,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:34,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 19:24:34,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:24:34,403 INFO L87 Difference]: Start difference. First operand 239 states and 355 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:35,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:35,474 INFO L93 Difference]: Finished difference Result 292 states and 412 transitions. [2024-11-18 19:24:35,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 19:24:35,475 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-18 19:24:35,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:35,477 INFO L225 Difference]: With dead ends: 292 [2024-11-18 19:24:35,477 INFO L226 Difference]: Without dead ends: 290 [2024-11-18 19:24:35,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-18 19:24:35,479 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 121 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:35,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1081 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:24:35,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-18 19:24:35,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 235. [2024-11-18 19:24:35,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 152 states have internal predecessors, (193), 78 states have call successors, (78), 6 states have call predecessors, (78), 6 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 19:24:35,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 349 transitions. [2024-11-18 19:24:35,505 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 349 transitions. Word has length 204 [2024-11-18 19:24:35,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:35,506 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 349 transitions. [2024-11-18 19:24:35,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:35,506 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 349 transitions. [2024-11-18 19:24:35,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-18 19:24:35,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:35,510 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:35,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:24:35,510 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:35,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:35,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1414323500, now seen corresponding path program 1 times [2024-11-18 19:24:35,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:35,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090811491] [2024-11-18 19:24:35,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:35,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:35,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:35,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:35,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090811491] [2024-11-18 19:24:35,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090811491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:35,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:35,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:24:35,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230020504] [2024-11-18 19:24:35,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:35,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:24:35,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:35,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:24:35,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:24:35,619 INFO L87 Difference]: Start difference. First operand 235 states and 349 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:35,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:35,860 INFO L93 Difference]: Finished difference Result 766 states and 1128 transitions. [2024-11-18 19:24:35,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:24:35,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-18 19:24:35,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:35,864 INFO L225 Difference]: With dead ends: 766 [2024-11-18 19:24:35,864 INFO L226 Difference]: Without dead ends: 534 [2024-11-18 19:24:35,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:24:35,866 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 96 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:35,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 390 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:24:35,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-18 19:24:35,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 481. [2024-11-18 19:24:35,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 302 states have (on average 1.281456953642384) internal successors, (387), 308 states have internal predecessors, (387), 164 states have call successors, (164), 14 states have call predecessors, (164), 14 states have return successors, (164), 158 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-18 19:24:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 715 transitions. [2024-11-18 19:24:35,901 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 715 transitions. Word has length 204 [2024-11-18 19:24:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:35,901 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 715 transitions. [2024-11-18 19:24:35,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:35,902 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 715 transitions. [2024-11-18 19:24:35,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-18 19:24:35,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:35,903 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:35,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:24:35,904 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:35,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:35,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2071297170, now seen corresponding path program 1 times [2024-11-18 19:24:35,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:35,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520367979] [2024-11-18 19:24:35,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:35,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:35,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:35,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:35,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520367979] [2024-11-18 19:24:35,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520367979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:35,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:35,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:24:35,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811321750] [2024-11-18 19:24:35,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:35,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:24:35,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:35,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:24:35,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:24:35,953 INFO L87 Difference]: Start difference. First operand 481 states and 715 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:35,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:35,997 INFO L93 Difference]: Finished difference Result 924 states and 1379 transitions. [2024-11-18 19:24:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:24:35,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-18 19:24:35,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:36,001 INFO L225 Difference]: With dead ends: 924 [2024-11-18 19:24:36,002 INFO L226 Difference]: Without dead ends: 446 [2024-11-18 19:24:36,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:24:36,004 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 116 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:36,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 351 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:24:36,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-18 19:24:36,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 440. [2024-11-18 19:24:36,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 273 states have (on average 1.216117216117216) internal successors, (332), 277 states have internal predecessors, (332), 154 states have call successors, (154), 12 states have call predecessors, (154), 12 states have return successors, (154), 150 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-18 19:24:36,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 640 transitions. [2024-11-18 19:24:36,035 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 640 transitions. Word has length 204 [2024-11-18 19:24:36,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:36,035 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 640 transitions. [2024-11-18 19:24:36,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:36,036 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 640 transitions. [2024-11-18 19:24:36,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-18 19:24:36,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:36,037 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:36,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:24:36,038 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:36,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:36,038 INFO L85 PathProgramCache]: Analyzing trace with hash 2094381870, now seen corresponding path program 1 times [2024-11-18 19:24:36,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:36,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939869905] [2024-11-18 19:24:36,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:36,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:38,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:38,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:38,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939869905] [2024-11-18 19:24:38,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939869905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:38,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:38,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 19:24:38,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558097055] [2024-11-18 19:24:38,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:38,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 19:24:38,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:38,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 19:24:38,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-18 19:24:38,220 INFO L87 Difference]: Start difference. First operand 440 states and 640 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:39,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:39,087 INFO L93 Difference]: Finished difference Result 522 states and 729 transitions. [2024-11-18 19:24:39,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 19:24:39,088 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-18 19:24:39,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:39,091 INFO L225 Difference]: With dead ends: 522 [2024-11-18 19:24:39,091 INFO L226 Difference]: Without dead ends: 520 [2024-11-18 19:24:39,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-18 19:24:39,092 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 226 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:39,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 708 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:24:39,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-18 19:24:39,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 467. [2024-11-18 19:24:39,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 297 states have (on average 1.2154882154882154) internal successors, (361), 302 states have internal predecessors, (361), 156 states have call successors, (156), 13 states have call predecessors, (156), 13 states have return successors, (156), 151 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-18 19:24:39,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 673 transitions. [2024-11-18 19:24:39,128 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 673 transitions. Word has length 204 [2024-11-18 19:24:39,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:39,128 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 673 transitions. [2024-11-18 19:24:39,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:39,129 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 673 transitions. [2024-11-18 19:24:39,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-18 19:24:39,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:39,130 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:39,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:24:39,131 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:39,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:39,131 INFO L85 PathProgramCache]: Analyzing trace with hash 2096228912, now seen corresponding path program 1 times [2024-11-18 19:24:39,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:39,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830700447] [2024-11-18 19:24:39,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:39,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:41,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:41,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:41,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830700447] [2024-11-18 19:24:41,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830700447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:41,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:41,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 19:24:41,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079242745] [2024-11-18 19:24:41,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:41,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 19:24:41,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:41,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 19:24:41,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-18 19:24:41,962 INFO L87 Difference]: Start difference. First operand 467 states and 673 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:43,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:43,181 INFO L93 Difference]: Finished difference Result 520 states and 727 transitions. [2024-11-18 19:24:43,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 19:24:43,181 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-18 19:24:43,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:43,184 INFO L225 Difference]: With dead ends: 520 [2024-11-18 19:24:43,184 INFO L226 Difference]: Without dead ends: 518 [2024-11-18 19:24:43,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:24:43,185 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 265 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:43,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 705 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:24:43,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-18 19:24:43,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 467. [2024-11-18 19:24:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 297 states have (on average 1.2154882154882154) internal successors, (361), 302 states have internal predecessors, (361), 156 states have call successors, (156), 13 states have call predecessors, (156), 13 states have return successors, (156), 151 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-18 19:24:43,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 673 transitions. [2024-11-18 19:24:43,221 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 673 transitions. Word has length 204 [2024-11-18 19:24:43,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:43,221 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 673 transitions. [2024-11-18 19:24:43,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:43,221 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 673 transitions. [2024-11-18 19:24:43,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-18 19:24:43,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:43,222 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:43,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:24:43,223 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:43,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:43,223 INFO L85 PathProgramCache]: Analyzing trace with hash -730345455, now seen corresponding path program 1 times [2024-11-18 19:24:43,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:43,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613153796] [2024-11-18 19:24:43,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:43,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:45,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:45,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:45,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613153796] [2024-11-18 19:24:45,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613153796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:45,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:45,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 19:24:45,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142838377] [2024-11-18 19:24:45,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:45,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 19:24:45,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:45,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 19:24:45,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:24:45,590 INFO L87 Difference]: Start difference. First operand 467 states and 673 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:46,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:46,418 INFO L93 Difference]: Finished difference Result 667 states and 915 transitions. [2024-11-18 19:24:46,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 19:24:46,418 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2024-11-18 19:24:46,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:46,427 INFO L225 Difference]: With dead ends: 667 [2024-11-18 19:24:46,427 INFO L226 Difference]: Without dead ends: 665 [2024-11-18 19:24:46,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=109, Invalid=197, Unknown=0, NotChecked=0, Total=306 [2024-11-18 19:24:46,428 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 243 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:46,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 938 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:24:46,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-18 19:24:46,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 475. [2024-11-18 19:24:46,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 307 states have (on average 1.221498371335505) internal successors, (375), 311 states have internal predecessors, (375), 152 states have call successors, (152), 15 states have call predecessors, (152), 15 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-18 19:24:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 679 transitions. [2024-11-18 19:24:46,512 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 679 transitions. Word has length 205 [2024-11-18 19:24:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:46,512 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 679 transitions. [2024-11-18 19:24:46,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:46,513 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 679 transitions. [2024-11-18 19:24:46,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-18 19:24:46,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:46,517 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:46,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:24:46,518 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:46,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:46,518 INFO L85 PathProgramCache]: Analyzing trace with hash -728498413, now seen corresponding path program 1 times [2024-11-18 19:24:46,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:46,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694938033] [2024-11-18 19:24:46,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:46,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:51,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:51,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:51,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694938033] [2024-11-18 19:24:51,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694938033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:51,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:51,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-18 19:24:51,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160807930] [2024-11-18 19:24:51,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:51,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-18 19:24:51,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:51,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-18 19:24:51,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-18 19:24:51,455 INFO L87 Difference]: Start difference. First operand 475 states and 679 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-18 19:24:55,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:55,782 INFO L93 Difference]: Finished difference Result 628 states and 867 transitions. [2024-11-18 19:24:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 19:24:55,784 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 205 [2024-11-18 19:24:55,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:55,786 INFO L225 Difference]: With dead ends: 628 [2024-11-18 19:24:55,786 INFO L226 Difference]: Without dead ends: 626 [2024-11-18 19:24:55,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2024-11-18 19:24:55,788 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 319 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:55,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 778 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-18 19:24:55,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-18 19:24:55,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 475. [2024-11-18 19:24:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 307 states have (on average 1.221498371335505) internal successors, (375), 311 states have internal predecessors, (375), 152 states have call successors, (152), 15 states have call predecessors, (152), 15 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-18 19:24:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 679 transitions. [2024-11-18 19:24:55,827 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 679 transitions. Word has length 205 [2024-11-18 19:24:55,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:55,827 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 679 transitions. [2024-11-18 19:24:55,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-18 19:24:55,827 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 679 transitions. [2024-11-18 19:24:55,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-18 19:24:55,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:55,828 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:55,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 19:24:55,829 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:55,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:55,829 INFO L85 PathProgramCache]: Analyzing trace with hash -50287085, now seen corresponding path program 1 times [2024-11-18 19:24:55,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:55,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990304146] [2024-11-18 19:24:55,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:55,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:24:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:24:59,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:24:59,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990304146] [2024-11-18 19:24:59,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990304146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:24:59,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:24:59,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 19:24:59,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005460222] [2024-11-18 19:24:59,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:24:59,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 19:24:59,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:24:59,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 19:24:59,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:24:59,100 INFO L87 Difference]: Start difference. First operand 475 states and 679 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:59,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:24:59,843 INFO L93 Difference]: Finished difference Result 635 states and 875 transitions. [2024-11-18 19:24:59,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 19:24:59,844 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2024-11-18 19:24:59,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:24:59,847 INFO L225 Difference]: With dead ends: 635 [2024-11-18 19:24:59,847 INFO L226 Difference]: Without dead ends: 633 [2024-11-18 19:24:59,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=109, Invalid=197, Unknown=0, NotChecked=0, Total=306 [2024-11-18 19:24:59,848 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 267 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:24:59,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 755 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:24:59,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-18 19:24:59,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 479. [2024-11-18 19:24:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 311 states have (on average 1.22508038585209) internal successors, (381), 315 states have internal predecessors, (381), 152 states have call successors, (152), 15 states have call predecessors, (152), 15 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-18 19:24:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 685 transitions. [2024-11-18 19:24:59,887 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 685 transitions. Word has length 205 [2024-11-18 19:24:59,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:24:59,888 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 685 transitions. [2024-11-18 19:24:59,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:24:59,888 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 685 transitions. [2024-11-18 19:24:59,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-18 19:24:59,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:24:59,889 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:59,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 19:24:59,889 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:24:59,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:24:59,890 INFO L85 PathProgramCache]: Analyzing trace with hash -48440043, now seen corresponding path program 1 times [2024-11-18 19:24:59,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:24:59,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468166836] [2024-11-18 19:24:59,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:24:59,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:24:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:25:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:25:06,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:25:06,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468166836] [2024-11-18 19:25:06,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468166836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:25:06,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:25:06,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-18 19:25:06,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350598988] [2024-11-18 19:25:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:25:06,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-18 19:25:06,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:25:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-18 19:25:06,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-18 19:25:06,560 INFO L87 Difference]: Start difference. First operand 479 states and 685 transitions. Second operand has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-18 19:25:10,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:25:10,821 INFO L93 Difference]: Finished difference Result 649 states and 885 transitions. [2024-11-18 19:25:10,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 19:25:10,822 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 205 [2024-11-18 19:25:10,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:25:10,825 INFO L225 Difference]: With dead ends: 649 [2024-11-18 19:25:10,825 INFO L226 Difference]: Without dead ends: 647 [2024-11-18 19:25:10,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2024-11-18 19:25:10,826 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 390 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:25:10,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 786 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-18 19:25:10,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-11-18 19:25:10,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 487. [2024-11-18 19:25:10,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 316 states have (on average 1.2151898734177216) internal successors, (384), 320 states have internal predecessors, (384), 152 states have call successors, (152), 18 states have call predecessors, (152), 18 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-18 19:25:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 688 transitions. [2024-11-18 19:25:10,868 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 688 transitions. Word has length 205 [2024-11-18 19:25:10,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:25:10,868 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 688 transitions. [2024-11-18 19:25:10,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-18 19:25:10,869 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 688 transitions. [2024-11-18 19:25:10,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-18 19:25:10,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:25:10,870 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:10,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 19:25:10,870 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:25:10,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:25:10,875 INFO L85 PathProgramCache]: Analyzing trace with hash -143539441, now seen corresponding path program 1 times [2024-11-18 19:25:10,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:25:10,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514882146] [2024-11-18 19:25:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:25:10,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:25:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:25:32,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-18 19:25:32,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:25:32,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514882146] [2024-11-18 19:25:32,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514882146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:25:32,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:25:32,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 19:25:32,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497454035] [2024-11-18 19:25:32,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:25:32,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 19:25:32,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:25:32,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 19:25:32,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:25:32,972 INFO L87 Difference]: Start difference. First operand 487 states and 688 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:25:35,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:25:35,521 INFO L93 Difference]: Finished difference Result 720 states and 967 transitions. [2024-11-18 19:25:35,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 19:25:35,522 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2024-11-18 19:25:35,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:25:35,525 INFO L225 Difference]: With dead ends: 720 [2024-11-18 19:25:35,526 INFO L226 Difference]: Without dead ends: 718 [2024-11-18 19:25:35,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=221, Invalid=535, Unknown=0, NotChecked=0, Total=756 [2024-11-18 19:25:35,527 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 224 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:25:35,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1128 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 19:25:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-18 19:25:35,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 501. [2024-11-18 19:25:35,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 330 states have (on average 1.2303030303030302) internal successors, (406), 334 states have internal predecessors, (406), 152 states have call successors, (152), 18 states have call predecessors, (152), 18 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-18 19:25:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 710 transitions. [2024-11-18 19:25:35,579 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 710 transitions. Word has length 205 [2024-11-18 19:25:35,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:25:35,580 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 710 transitions. [2024-11-18 19:25:35,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-18 19:25:35,580 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 710 transitions. [2024-11-18 19:25:35,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-18 19:25:35,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:25:35,581 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:35,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 19:25:35,582 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:25:35,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:25:35,582 INFO L85 PathProgramCache]: Analyzing trace with hash -141692399, now seen corresponding path program 1 times [2024-11-18 19:25:35,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:25:35,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170274769] [2024-11-18 19:25:35,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:25:35,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:25:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat