./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c -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 80c5c0aba72ae94b1a7faaff5d18dcb1975bca24b2cca6ada65386f045cad987 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-13 23:27:54,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 23:27:54,214 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 23:27:54,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 23:27:54,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 23:27:54,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 23:27:54,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 23:27:54,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 23:27:54,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 23:27:54,277 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 23:27:54,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 23:27:54,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 23:27:54,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 23:27:54,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 23:27:54,281 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 23:27:54,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 23:27:54,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 23:27:54,282 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 23:27:54,282 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 23:27:54,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 23:27:54,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 23:27:54,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 23:27:54,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 23:27:54,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 23:27:54,286 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 23:27:54,286 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 23:27:54,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 23:27:54,287 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 23:27:54,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 23:27:54,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 23:27:54,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 23:27:54,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 23:27:54,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 23:27:54,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 23:27:54,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 23:27:54,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 23:27:54,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 23:27:54,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 23:27:54,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 23:27:54,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 23:27:54,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 23:27:54,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 23:27:54,290 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80c5c0aba72ae94b1a7faaff5d18dcb1975bca24b2cca6ada65386f045cad987 [2024-10-13 23:27:54,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 23:27:54,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 23:27:54,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 23:27:54,553 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 23:27:54,553 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 23:27:54,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c [2024-10-13 23:27:55,925 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 23:27:56,219 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 23:27:56,220 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c [2024-10-13 23:27:56,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d59ed2bb7/f788c33ee3834b9bae213e1e81370a26/FLAGb7d653da5 [2024-10-13 23:27:56,253 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d59ed2bb7/f788c33ee3834b9bae213e1e81370a26 [2024-10-13 23:27:56,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 23:27:56,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 23:27:56,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 23:27:56,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 23:27:56,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 23:27:56,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:56,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de02275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56, skipping insertion in model container [2024-10-13 23:27:56,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:56,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 23:27:56,521 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c[4279,4292] [2024-10-13 23:27:56,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 23:27:56,813 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 23:27:56,842 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c[4279,4292] [2024-10-13 23:27:56,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 23:27:56,983 INFO L204 MainTranslator]: Completed translation [2024-10-13 23:27:56,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56 WrapperNode [2024-10-13 23:27:56,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 23:27:56,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 23:27:56,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 23:27:56,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 23:27:56,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,108 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2024-10-13 23:27:57,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 23:27:57,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 23:27:57,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 23:27:57,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 23:27:57,119 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,140 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,179 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]. [2024-10-13 23:27:57,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 23:27:57,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 23:27:57,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 23:27:57,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 23:27:57,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (1/1) ... [2024-10-13 23:27:57,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 23:27:57,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 23:27:57,337 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) [2024-10-13 23:27:57,340 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 [2024-10-13 23:27:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 23:27:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 23:27:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 23:27:57,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 23:27:57,435 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 23:27:57,437 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 23:27:58,820 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-10-13 23:27:58,820 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 23:27:58,876 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 23:27:58,876 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 23:27:58,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:27:58 BoogieIcfgContainer [2024-10-13 23:27:58,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 23:27:58,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 23:27:58,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 23:27:58,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 23:27:58,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:27:56" (1/3) ... [2024-10-13 23:27:58,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b548e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:27:58, skipping insertion in model container [2024-10-13 23:27:58,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:27:56" (2/3) ... [2024-10-13 23:27:58,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b548e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:27:58, skipping insertion in model container [2024-10-13 23:27:58,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:27:58" (3/3) ... [2024-10-13 23:27:58,885 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label30.c [2024-10-13 23:27:58,901 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 23:27:58,901 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 23:27:58,974 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 23:27:58,983 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;@66ba4405, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 23:27:58,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 23:27:58,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:27:58,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-13 23:27:58,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:27:58,997 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:27:58,997 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:27:59,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:27:59,003 INFO L85 PathProgramCache]: Analyzing trace with hash -2130931167, now seen corresponding path program 1 times [2024-10-13 23:27:59,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:27:59,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953386564] [2024-10-13 23:27:59,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:27:59,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:27:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:27:59,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:27:59,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:27:59,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953386564] [2024-10-13 23:27:59,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953386564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:27:59,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:27:59,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 23:27:59,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755353436] [2024-10-13 23:27:59,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:27:59,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 23:27:59,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:27:59,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 23:27:59,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 23:27:59,218 INFO L87 Difference]: Start difference. First operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:27:59,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:27:59,276 INFO L93 Difference]: Finished difference Result 441 states and 839 transitions. [2024-10-13 23:27:59,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 23:27:59,279 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-10-13 23:27:59,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:27:59,290 INFO L225 Difference]: With dead ends: 441 [2024-10-13 23:27:59,290 INFO L226 Difference]: Without dead ends: 219 [2024-10-13 23:27:59,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 23:27:59,299 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 23:27:59,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 23:27:59,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-10-13 23:27:59,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-10-13 23:27:59,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.628440366972477) internal successors, (355), 218 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:27:59,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 355 transitions. [2024-10-13 23:27:59,350 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 355 transitions. Word has length 28 [2024-10-13 23:27:59,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:27:59,350 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 355 transitions. [2024-10-13 23:27:59,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:27:59,351 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 355 transitions. [2024-10-13 23:27:59,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-13 23:27:59,351 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:27:59,352 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:27:59,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 23:27:59,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:27:59,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:27:59,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1169075321, now seen corresponding path program 1 times [2024-10-13 23:27:59,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:27:59,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261643763] [2024-10-13 23:27:59,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:27:59,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:27:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:27:59,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:27:59,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:27:59,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261643763] [2024-10-13 23:27:59,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261643763] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:27:59,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:27:59,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 23:27:59,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486889379] [2024-10-13 23:27:59,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:27:59,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:27:59,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:27:59,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:27:59,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:27:59,524 INFO L87 Difference]: Start difference. First operand 219 states and 355 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:00,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:00,419 INFO L93 Difference]: Finished difference Result 630 states and 1029 transitions. [2024-10-13 23:28:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:00,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-10-13 23:28:00,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:00,423 INFO L225 Difference]: With dead ends: 630 [2024-10-13 23:28:00,423 INFO L226 Difference]: Without dead ends: 412 [2024-10-13 23:28:00,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:00,425 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 179 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:00,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 144 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 23:28:00,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-10-13 23:28:00,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2024-10-13 23:28:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 409 states have (on average 1.4596577017114913) internal successors, (597), 409 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:00,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 597 transitions. [2024-10-13 23:28:00,447 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 597 transitions. Word has length 28 [2024-10-13 23:28:00,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:00,447 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 597 transitions. [2024-10-13 23:28:00,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:00,447 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 597 transitions. [2024-10-13 23:28:00,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-13 23:28:00,455 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:00,455 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:00,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 23:28:00,456 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:00,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:00,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1046043342, now seen corresponding path program 1 times [2024-10-13 23:28:00,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:00,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18504002] [2024-10-13 23:28:00,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:00,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:00,642 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:28:00,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:00,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18504002] [2024-10-13 23:28:00,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18504002] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:00,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:00,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 23:28:00,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934423201] [2024-10-13 23:28:00,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:00,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:00,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:00,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:00,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:00,645 INFO L87 Difference]: Start difference. First operand 410 states and 597 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:01,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:01,386 INFO L93 Difference]: Finished difference Result 1208 states and 1764 transitions. [2024-10-13 23:28:01,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:01,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-10-13 23:28:01,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:01,391 INFO L225 Difference]: With dead ends: 1208 [2024-10-13 23:28:01,392 INFO L226 Difference]: Without dead ends: 799 [2024-10-13 23:28:01,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:01,398 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:01,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 118 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 23:28:01,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-10-13 23:28:01,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 786. [2024-10-13 23:28:01,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.3859872611464967) internal successors, (1088), 785 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:01,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1088 transitions. [2024-10-13 23:28:01,446 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1088 transitions. Word has length 96 [2024-10-13 23:28:01,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:01,450 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 1088 transitions. [2024-10-13 23:28:01,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:01,451 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1088 transitions. [2024-10-13 23:28:01,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-13 23:28:01,454 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:01,454 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:01,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 23:28:01,455 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:01,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:01,460 INFO L85 PathProgramCache]: Analyzing trace with hash 2116016434, now seen corresponding path program 1 times [2024-10-13 23:28:01,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:01,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622438671] [2024-10-13 23:28:01,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:01,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:01,826 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:28:01,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:01,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622438671] [2024-10-13 23:28:01,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622438671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:01,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:01,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 23:28:01,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525193582] [2024-10-13 23:28:01,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:01,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:01,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:01,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:01,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:01,830 INFO L87 Difference]: Start difference. First operand 786 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:02,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:02,432 INFO L93 Difference]: Finished difference Result 1941 states and 2630 transitions. [2024-10-13 23:28:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:02,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-10-13 23:28:02,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:02,437 INFO L225 Difference]: With dead ends: 1941 [2024-10-13 23:28:02,437 INFO L226 Difference]: Without dead ends: 1156 [2024-10-13 23:28:02,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:02,440 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:02,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 188 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 23:28:02,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2024-10-13 23:28:02,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1155. [2024-10-13 23:28:02,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1154 states have (on average 1.2781629116117852) internal successors, (1475), 1154 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:02,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1475 transitions. [2024-10-13 23:28:02,462 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1475 transitions. Word has length 97 [2024-10-13 23:28:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:02,463 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1475 transitions. [2024-10-13 23:28:02,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:02,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1475 transitions. [2024-10-13 23:28:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-13 23:28:02,465 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:02,465 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:02,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 23:28:02,466 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:02,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:02,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1101337846, now seen corresponding path program 1 times [2024-10-13 23:28:02,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:02,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765832910] [2024-10-13 23:28:02,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:02,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:02,721 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:28:02,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:02,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765832910] [2024-10-13 23:28:02,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765832910] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:02,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:02,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:02,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976899668] [2024-10-13 23:28:02,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:02,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:02,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:02,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:02,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:02,725 INFO L87 Difference]: Start difference. First operand 1155 states and 1475 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:03,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:03,511 INFO L93 Difference]: Finished difference Result 2690 states and 3514 transitions. [2024-10-13 23:28:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:03,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-10-13 23:28:03,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:03,520 INFO L225 Difference]: With dead ends: 2690 [2024-10-13 23:28:03,521 INFO L226 Difference]: Without dead ends: 1720 [2024-10-13 23:28:03,522 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 [2024-10-13 23:28:03,523 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 177 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:03,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 333 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 23:28:03,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2024-10-13 23:28:03,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1527. [2024-10-13 23:28:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 1.261467889908257) internal successors, (1925), 1526 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:03,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1925 transitions. [2024-10-13 23:28:03,557 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1925 transitions. Word has length 140 [2024-10-13 23:28:03,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:03,559 INFO L471 AbstractCegarLoop]: Abstraction has 1527 states and 1925 transitions. [2024-10-13 23:28:03,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:03,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1925 transitions. [2024-10-13 23:28:03,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 23:28:03,564 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:03,564 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:03,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 23:28:03,565 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:03,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:03,565 INFO L85 PathProgramCache]: Analyzing trace with hash -608129931, now seen corresponding path program 1 times [2024-10-13 23:28:03,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:03,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447403219] [2024-10-13 23:28:03,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:03,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:03,751 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:28:03,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:03,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447403219] [2024-10-13 23:28:03,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447403219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:03,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:03,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 23:28:03,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141238366] [2024-10-13 23:28:03,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:03,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:03,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:03,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:03,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:03,757 INFO L87 Difference]: Start difference. First operand 1527 states and 1925 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:04,539 INFO L93 Difference]: Finished difference Result 4157 states and 5315 transitions. [2024-10-13 23:28:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:04,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2024-10-13 23:28:04,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:04,551 INFO L225 Difference]: With dead ends: 4157 [2024-10-13 23:28:04,551 INFO L226 Difference]: Without dead ends: 2631 [2024-10-13 23:28:04,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:04,555 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:04,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 153 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 23:28:04,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2024-10-13 23:28:04,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2447. [2024-10-13 23:28:04,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2447 states, 2446 states have (on average 1.2174979558462797) internal successors, (2978), 2446 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:04,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2447 states to 2447 states and 2978 transitions. [2024-10-13 23:28:04,604 INFO L78 Accepts]: Start accepts. Automaton has 2447 states and 2978 transitions. Word has length 155 [2024-10-13 23:28:04,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:04,605 INFO L471 AbstractCegarLoop]: Abstraction has 2447 states and 2978 transitions. [2024-10-13 23:28:04,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:04,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2447 states and 2978 transitions. [2024-10-13 23:28:04,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-13 23:28:04,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:04,610 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:04,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 23:28:04,610 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:04,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:04,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1942076651, now seen corresponding path program 1 times [2024-10-13 23:28:04,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:04,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804882526] [2024-10-13 23:28:04,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:04,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:28:04,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:04,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804882526] [2024-10-13 23:28:04,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804882526] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:04,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:04,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:04,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475966516] [2024-10-13 23:28:04,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:04,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:04,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:04,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:04,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:04,804 INFO L87 Difference]: Start difference. First operand 2447 states and 2978 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:05,530 INFO L93 Difference]: Finished difference Result 5638 states and 6867 transitions. [2024-10-13 23:28:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:05,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2024-10-13 23:28:05,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:05,541 INFO L225 Difference]: With dead ends: 5638 [2024-10-13 23:28:05,542 INFO L226 Difference]: Without dead ends: 3192 [2024-10-13 23:28:05,545 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 [2024-10-13 23:28:05,545 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 172 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:05,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 356 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 23:28:05,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2024-10-13 23:28:05,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3183. [2024-10-13 23:28:05,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3183 states, 3182 states have (on average 1.1992457573852924) internal successors, (3816), 3182 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3183 states to 3183 states and 3816 transitions. [2024-10-13 23:28:05,598 INFO L78 Accepts]: Start accepts. Automaton has 3183 states and 3816 transitions. Word has length 171 [2024-10-13 23:28:05,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:05,599 INFO L471 AbstractCegarLoop]: Abstraction has 3183 states and 3816 transitions. [2024-10-13 23:28:05,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:05,599 INFO L276 IsEmpty]: Start isEmpty. Operand 3183 states and 3816 transitions. [2024-10-13 23:28:05,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-10-13 23:28:05,601 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:05,601 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:05,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 23:28:05,602 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:05,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:05,602 INFO L85 PathProgramCache]: Analyzing trace with hash -2039710857, now seen corresponding path program 1 times [2024-10-13 23:28:05,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:05,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585930217] [2024-10-13 23:28:05,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:05,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-13 23:28:05,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:05,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585930217] [2024-10-13 23:28:05,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585930217] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:05,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:05,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 23:28:05,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781937462] [2024-10-13 23:28:05,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:05,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:05,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:05,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:05,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:05,857 INFO L87 Difference]: Start difference. First operand 3183 states and 3816 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:06,537 INFO L93 Difference]: Finished difference Result 7107 states and 8503 transitions. [2024-10-13 23:28:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2024-10-13 23:28:06,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:06,552 INFO L225 Difference]: With dead ends: 7107 [2024-10-13 23:28:06,553 INFO L226 Difference]: Without dead ends: 3925 [2024-10-13 23:28:06,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:06,558 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 37 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:06,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 152 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 23:28:06,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3925 states. [2024-10-13 23:28:06,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3925 to 3924. [2024-10-13 23:28:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 3923 states have (on average 1.1939841957685444) internal successors, (4684), 3923 states have internal predecessors, (4684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:06,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 4684 transitions. [2024-10-13 23:28:06,627 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 4684 transitions. Word has length 209 [2024-10-13 23:28:06,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:06,628 INFO L471 AbstractCegarLoop]: Abstraction has 3924 states and 4684 transitions. [2024-10-13 23:28:06,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:06,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 4684 transitions. [2024-10-13 23:28:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-13 23:28:06,631 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:06,632 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:06,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 23:28:06,632 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:06,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:06,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1561964310, now seen corresponding path program 1 times [2024-10-13 23:28:06,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:06,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589526644] [2024-10-13 23:28:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:06,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:06,876 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-10-13 23:28:06,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:06,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589526644] [2024-10-13 23:28:06,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589526644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:06,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:06,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:06,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443994774] [2024-10-13 23:28:06,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:06,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:06,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:06,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:06,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:06,879 INFO L87 Difference]: Start difference. First operand 3924 states and 4684 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:07,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:07,727 INFO L93 Difference]: Finished difference Result 8590 states and 10346 transitions. [2024-10-13 23:28:07,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:07,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2024-10-13 23:28:07,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:07,746 INFO L225 Difference]: With dead ends: 8590 [2024-10-13 23:28:07,746 INFO L226 Difference]: Without dead ends: 4667 [2024-10-13 23:28:07,752 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 [2024-10-13 23:28:07,754 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 168 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:07,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 387 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 23:28:07,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4667 states. [2024-10-13 23:28:07,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4667 to 4476. [2024-10-13 23:28:07,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4476 states, 4475 states have (on average 1.186145251396648) internal successors, (5308), 4475 states have internal predecessors, (5308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:07,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4476 states to 4476 states and 5308 transitions. [2024-10-13 23:28:07,832 INFO L78 Accepts]: Start accepts. Automaton has 4476 states and 5308 transitions. Word has length 210 [2024-10-13 23:28:07,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:07,833 INFO L471 AbstractCegarLoop]: Abstraction has 4476 states and 5308 transitions. [2024-10-13 23:28:07,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:07,834 INFO L276 IsEmpty]: Start isEmpty. Operand 4476 states and 5308 transitions. [2024-10-13 23:28:07,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-10-13 23:28:07,837 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:07,837 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:07,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 23:28:07,837 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:07,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:07,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1656522296, now seen corresponding path program 1 times [2024-10-13 23:28:07,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:07,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912650985] [2024-10-13 23:28:07,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:07,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:08,293 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:28:08,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:08,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912650985] [2024-10-13 23:28:08,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912650985] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:08,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:08,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 23:28:08,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705995913] [2024-10-13 23:28:08,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:08,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 23:28:08,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:08,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 23:28:08,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:08,295 INFO L87 Difference]: Start difference. First operand 4476 states and 5308 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:09,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:09,595 INFO L93 Difference]: Finished difference Result 14320 states and 17013 transitions. [2024-10-13 23:28:09,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 23:28:09,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2024-10-13 23:28:09,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:09,634 INFO L225 Difference]: With dead ends: 14320 [2024-10-13 23:28:09,634 INFO L226 Difference]: Without dead ends: 9845 [2024-10-13 23:28:09,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:09,642 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 308 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:09,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 188 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 23:28:09,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9845 states. [2024-10-13 23:28:09,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9845 to 7626. [2024-10-13 23:28:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 7625 states have (on average 1.1702295081967213) internal successors, (8923), 7625 states have internal predecessors, (8923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:09,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 8923 transitions. [2024-10-13 23:28:09,776 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 8923 transitions. Word has length 230 [2024-10-13 23:28:09,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:09,777 INFO L471 AbstractCegarLoop]: Abstraction has 7626 states and 8923 transitions. [2024-10-13 23:28:09,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:09,777 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 8923 transitions. [2024-10-13 23:28:09,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-10-13 23:28:09,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:09,781 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:09,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 23:28:09,781 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:09,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:09,782 INFO L85 PathProgramCache]: Analyzing trace with hash 832727969, now seen corresponding path program 1 times [2024-10-13 23:28:09,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:09,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529805014] [2024-10-13 23:28:09,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:09,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:28:10,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:10,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529805014] [2024-10-13 23:28:10,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529805014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:10,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:10,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 23:28:10,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285373080] [2024-10-13 23:28:10,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:10,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 23:28:10,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:10,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 23:28:10,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:10,153 INFO L87 Difference]: Start difference. First operand 7626 states and 8923 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:11,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:11,417 INFO L93 Difference]: Finished difference Result 20233 states and 23745 transitions. [2024-10-13 23:28:11,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 23:28:11,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2024-10-13 23:28:11,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:11,440 INFO L225 Difference]: With dead ends: 20233 [2024-10-13 23:28:11,440 INFO L226 Difference]: Without dead ends: 12608 [2024-10-13 23:28:11,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:11,453 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 329 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:11,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 107 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 23:28:11,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2024-10-13 23:28:11,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 10201. [2024-10-13 23:28:11,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10201 states, 10200 states have (on average 1.1734313725490195) internal successors, (11969), 10200 states have internal predecessors, (11969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:11,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10201 states to 10201 states and 11969 transitions. [2024-10-13 23:28:11,628 INFO L78 Accepts]: Start accepts. Automaton has 10201 states and 11969 transitions. Word has length 240 [2024-10-13 23:28:11,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:11,628 INFO L471 AbstractCegarLoop]: Abstraction has 10201 states and 11969 transitions. [2024-10-13 23:28:11,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:11,629 INFO L276 IsEmpty]: Start isEmpty. Operand 10201 states and 11969 transitions. [2024-10-13 23:28:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-10-13 23:28:11,633 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:11,634 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:11,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 23:28:11,635 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:11,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:11,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1088558422, now seen corresponding path program 1 times [2024-10-13 23:28:11,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:11,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596902033] [2024-10-13 23:28:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:11,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:28:11,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:11,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596902033] [2024-10-13 23:28:11,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596902033] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:11,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:11,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:11,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969406406] [2024-10-13 23:28:11,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:11,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:11,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:11,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:11,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:11,870 INFO L87 Difference]: Start difference. First operand 10201 states and 11969 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:12,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:12,507 INFO L93 Difference]: Finished difference Result 20398 states and 23934 transitions. [2024-10-13 23:28:12,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:12,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2024-10-13 23:28:12,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:12,526 INFO L225 Difference]: With dead ends: 20398 [2024-10-13 23:28:12,526 INFO L226 Difference]: Without dead ends: 10198 [2024-10-13 23:28:12,538 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 [2024-10-13 23:28:12,538 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 148 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:12,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 302 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 23:28:12,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2024-10-13 23:28:12,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 10198. [2024-10-13 23:28:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10198 states, 10197 states have (on average 1.1445523193096008) internal successors, (11671), 10197 states have internal predecessors, (11671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:12,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10198 states to 10198 states and 11671 transitions. [2024-10-13 23:28:12,753 INFO L78 Accepts]: Start accepts. Automaton has 10198 states and 11671 transitions. Word has length 240 [2024-10-13 23:28:12,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:12,753 INFO L471 AbstractCegarLoop]: Abstraction has 10198 states and 11671 transitions. [2024-10-13 23:28:12,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:12,754 INFO L276 IsEmpty]: Start isEmpty. Operand 10198 states and 11671 transitions. [2024-10-13 23:28:12,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-10-13 23:28:12,758 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:12,759 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:12,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 23:28:12,759 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:12,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:12,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1484030287, now seen corresponding path program 1 times [2024-10-13 23:28:12,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:12,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506028546] [2024-10-13 23:28:12,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:12,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:12,932 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-10-13 23:28:12,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:12,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506028546] [2024-10-13 23:28:12,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506028546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:12,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:12,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:12,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27457604] [2024-10-13 23:28:12,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:12,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:12,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:12,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:12,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:12,936 INFO L87 Difference]: Start difference. First operand 10198 states and 11671 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:13,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:13,656 INFO L93 Difference]: Finished difference Result 22786 states and 26112 transitions. [2024-10-13 23:28:13,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:13,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 242 [2024-10-13 23:28:13,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:13,679 INFO L225 Difference]: With dead ends: 22786 [2024-10-13 23:28:13,679 INFO L226 Difference]: Without dead ends: 12589 [2024-10-13 23:28:13,691 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 [2024-10-13 23:28:13,693 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 169 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:13,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 367 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 23:28:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12589 states. [2024-10-13 23:28:13,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12589 to 11113. [2024-10-13 23:28:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11113 states, 11112 states have (on average 1.1383189344852411) internal successors, (12649), 11112 states have internal predecessors, (12649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:13,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11113 states to 11113 states and 12649 transitions. [2024-10-13 23:28:13,894 INFO L78 Accepts]: Start accepts. Automaton has 11113 states and 12649 transitions. Word has length 242 [2024-10-13 23:28:13,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:13,894 INFO L471 AbstractCegarLoop]: Abstraction has 11113 states and 12649 transitions. [2024-10-13 23:28:13,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:13,895 INFO L276 IsEmpty]: Start isEmpty. Operand 11113 states and 12649 transitions. [2024-10-13 23:28:13,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-10-13 23:28:13,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:13,899 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:13,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 23:28:13,899 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:13,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:13,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1218271228, now seen corresponding path program 1 times [2024-10-13 23:28:13,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:13,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828884819] [2024-10-13 23:28:13,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:13,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:14,125 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-13 23:28:14,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:14,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828884819] [2024-10-13 23:28:14,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828884819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:14,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:14,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:14,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859739023] [2024-10-13 23:28:14,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:14,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:14,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:14,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:14,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:14,129 INFO L87 Difference]: Start difference. First operand 11113 states and 12649 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:14,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:14,848 INFO L93 Difference]: Finished difference Result 22412 states and 25493 transitions. [2024-10-13 23:28:14,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:14,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2024-10-13 23:28:14,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:14,867 INFO L225 Difference]: With dead ends: 22412 [2024-10-13 23:28:14,867 INFO L226 Difference]: Without dead ends: 11300 [2024-10-13 23:28:14,878 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 [2024-10-13 23:28:14,879 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 171 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:14,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 370 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 23:28:14,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11300 states. [2024-10-13 23:28:15,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11300 to 11112. [2024-10-13 23:28:15,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11112 states, 11111 states have (on average 1.1175411754117541) internal successors, (12417), 11111 states have internal predecessors, (12417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:15,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11112 states to 11112 states and 12417 transitions. [2024-10-13 23:28:15,083 INFO L78 Accepts]: Start accepts. Automaton has 11112 states and 12417 transitions. Word has length 247 [2024-10-13 23:28:15,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:15,083 INFO L471 AbstractCegarLoop]: Abstraction has 11112 states and 12417 transitions. [2024-10-13 23:28:15,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:15,084 INFO L276 IsEmpty]: Start isEmpty. Operand 11112 states and 12417 transitions. [2024-10-13 23:28:15,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-10-13 23:28:15,087 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:15,088 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:15,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 23:28:15,089 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:15,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1875070445, now seen corresponding path program 1 times [2024-10-13 23:28:15,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:15,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975393811] [2024-10-13 23:28:15,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:15,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 109 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:28:15,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:15,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975393811] [2024-10-13 23:28:15,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975393811] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 23:28:15,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222961183] [2024-10-13 23:28:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:15,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 23:28:15,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 23:28:15,754 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) [2024-10-13 23:28:15,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 23:28:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:15,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 23:28:15,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 23:28:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 23:28:16,412 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 23:28:16,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222961183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:16,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 23:28:16,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-13 23:28:16,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525006722] [2024-10-13 23:28:16,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:16,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 23:28:16,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:16,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 23:28:16,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-13 23:28:16,414 INFO L87 Difference]: Start difference. First operand 11112 states and 12417 transitions. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:17,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:17,274 INFO L93 Difference]: Finished difference Result 22226 states and 24837 transitions. [2024-10-13 23:28:17,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 23:28:17,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 261 [2024-10-13 23:28:17,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:17,285 INFO L225 Difference]: With dead ends: 22226 [2024-10-13 23:28:17,286 INFO L226 Difference]: Without dead ends: 11115 [2024-10-13 23:28:17,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-13 23:28:17,296 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 171 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:17,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 167 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 23:28:17,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11115 states. [2024-10-13 23:28:17,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11115 to 11112. [2024-10-13 23:28:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11112 states, 11111 states have (on average 1.116461164611646) internal successors, (12405), 11111 states have internal predecessors, (12405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:17,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11112 states to 11112 states and 12405 transitions. [2024-10-13 23:28:17,462 INFO L78 Accepts]: Start accepts. Automaton has 11112 states and 12405 transitions. Word has length 261 [2024-10-13 23:28:17,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:17,462 INFO L471 AbstractCegarLoop]: Abstraction has 11112 states and 12405 transitions. [2024-10-13 23:28:17,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:17,463 INFO L276 IsEmpty]: Start isEmpty. Operand 11112 states and 12405 transitions. [2024-10-13 23:28:17,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-10-13 23:28:17,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:17,470 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:17,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 23:28:17,674 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,SelfDestructingSolverStorable14 [2024-10-13 23:28:17,675 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:17,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:17,675 INFO L85 PathProgramCache]: Analyzing trace with hash -2024916437, now seen corresponding path program 1 times [2024-10-13 23:28:17,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:17,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652576859] [2024-10-13 23:28:17,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:17,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:17,962 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-10-13 23:28:17,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:17,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652576859] [2024-10-13 23:28:17,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652576859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:17,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:17,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:17,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65394303] [2024-10-13 23:28:17,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:17,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:17,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:17,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:17,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:17,965 INFO L87 Difference]: Start difference. First operand 11112 states and 12405 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:18,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:18,580 INFO L93 Difference]: Finished difference Result 24614 states and 27484 transitions. [2024-10-13 23:28:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:18,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 295 [2024-10-13 23:28:18,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:18,593 INFO L225 Difference]: With dead ends: 24614 [2024-10-13 23:28:18,593 INFO L226 Difference]: Without dead ends: 13503 [2024-10-13 23:28:18,602 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 [2024-10-13 23:28:18,602 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 191 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:18,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 142 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 23:28:18,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13503 states. [2024-10-13 23:28:18,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13503 to 11107. [2024-10-13 23:28:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11107 states, 11106 states have (on average 1.117323969025752) internal successors, (12409), 11106 states have internal predecessors, (12409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11107 states to 11107 states and 12409 transitions. [2024-10-13 23:28:18,744 INFO L78 Accepts]: Start accepts. Automaton has 11107 states and 12409 transitions. Word has length 295 [2024-10-13 23:28:18,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:18,745 INFO L471 AbstractCegarLoop]: Abstraction has 11107 states and 12409 transitions. [2024-10-13 23:28:18,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:18,745 INFO L276 IsEmpty]: Start isEmpty. Operand 11107 states and 12409 transitions. [2024-10-13 23:28:18,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-10-13 23:28:18,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:18,752 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:18,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 23:28:18,753 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:18,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:18,754 INFO L85 PathProgramCache]: Analyzing trace with hash 69578253, now seen corresponding path program 1 times [2024-10-13 23:28:18,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:18,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454035588] [2024-10-13 23:28:18,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:18,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:19,289 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-10-13 23:28:19,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:19,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454035588] [2024-10-13 23:28:19,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454035588] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:19,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:19,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 23:28:19,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898853498] [2024-10-13 23:28:19,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:19,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 23:28:19,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:19,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 23:28:19,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:19,292 INFO L87 Difference]: Start difference. First operand 11107 states and 12409 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:20,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:20,330 INFO L93 Difference]: Finished difference Result 27771 states and 31007 transitions. [2024-10-13 23:28:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 23:28:20,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2024-10-13 23:28:20,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:20,346 INFO L225 Difference]: With dead ends: 27771 [2024-10-13 23:28:20,346 INFO L226 Difference]: Without dead ends: 15924 [2024-10-13 23:28:20,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:20,355 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 311 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:20,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 396 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 23:28:20,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15924 states. [2024-10-13 23:28:20,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15924 to 12596. [2024-10-13 23:28:20,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12596 states, 12595 states have (on average 1.117665740373164) internal successors, (14077), 12595 states have internal predecessors, (14077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:20,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12596 states to 12596 states and 14077 transitions. [2024-10-13 23:28:20,552 INFO L78 Accepts]: Start accepts. Automaton has 12596 states and 14077 transitions. Word has length 299 [2024-10-13 23:28:20,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:20,552 INFO L471 AbstractCegarLoop]: Abstraction has 12596 states and 14077 transitions. [2024-10-13 23:28:20,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:20,552 INFO L276 IsEmpty]: Start isEmpty. Operand 12596 states and 14077 transitions. [2024-10-13 23:28:20,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-10-13 23:28:20,558 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:20,559 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:20,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 23:28:20,559 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:20,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:20,559 INFO L85 PathProgramCache]: Analyzing trace with hash -439314635, now seen corresponding path program 1 times [2024-10-13 23:28:20,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:20,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473962822] [2024-10-13 23:28:20,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:20,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:21,405 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-13 23:28:21,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:21,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473962822] [2024-10-13 23:28:21,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473962822] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 23:28:21,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141938567] [2024-10-13 23:28:21,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:21,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 23:28:21,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 23:28:21,408 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 23:28:21,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 23:28:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:21,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 23:28:21,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 23:28:22,045 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-13 23:28:22,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 23:28:22,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141938567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:22,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 23:28:22,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-13 23:28:22,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048015022] [2024-10-13 23:28:22,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:22,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 23:28:22,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:22,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 23:28:22,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 23:28:22,054 INFO L87 Difference]: Start difference. First operand 12596 states and 14077 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:22,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:22,772 INFO L93 Difference]: Finished difference Result 25377 states and 28345 transitions. [2024-10-13 23:28:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 23:28:22,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 315 [2024-10-13 23:28:22,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:22,786 INFO L225 Difference]: With dead ends: 25377 [2024-10-13 23:28:22,786 INFO L226 Difference]: Without dead ends: 12782 [2024-10-13 23:28:22,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 23:28:22,797 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 292 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:22,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 148 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 23:28:22,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12782 states. [2024-10-13 23:28:22,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12782 to 12596. [2024-10-13 23:28:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12596 states, 12595 states have (on average 1.1167129813418024) internal successors, (14065), 12595 states have internal predecessors, (14065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:22,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12596 states to 12596 states and 14065 transitions. [2024-10-13 23:28:22,927 INFO L78 Accepts]: Start accepts. Automaton has 12596 states and 14065 transitions. Word has length 315 [2024-10-13 23:28:22,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:22,928 INFO L471 AbstractCegarLoop]: Abstraction has 12596 states and 14065 transitions. [2024-10-13 23:28:22,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:22,928 INFO L276 IsEmpty]: Start isEmpty. Operand 12596 states and 14065 transitions. [2024-10-13 23:28:22,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-10-13 23:28:22,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:22,935 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:22,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 23:28:23,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-13 23:28:23,136 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:23,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:23,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1158217078, now seen corresponding path program 1 times [2024-10-13 23:28:23,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:23,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060119142] [2024-10-13 23:28:23,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:23,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:23,563 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-13 23:28:23,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:23,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060119142] [2024-10-13 23:28:23,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060119142] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:23,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:23,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:23,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928503729] [2024-10-13 23:28:23,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:23,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:23,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:23,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:23,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:23,567 INFO L87 Difference]: Start difference. First operand 12596 states and 14065 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:24,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:24,308 INFO L93 Difference]: Finished difference Result 27595 states and 30779 transitions. [2024-10-13 23:28:24,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:24,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2024-10-13 23:28:24,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:24,322 INFO L225 Difference]: With dead ends: 27595 [2024-10-13 23:28:24,322 INFO L226 Difference]: Without dead ends: 15000 [2024-10-13 23:28:24,332 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 [2024-10-13 23:28:24,333 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 192 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:24,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 133 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 23:28:24,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15000 states. [2024-10-13 23:28:24,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15000 to 11480. [2024-10-13 23:28:24,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11480 states, 11479 states have (on average 1.1169962540290965) internal successors, (12822), 11479 states have internal predecessors, (12822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:24,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11480 states to 11480 states and 12822 transitions. [2024-10-13 23:28:24,476 INFO L78 Accepts]: Start accepts. Automaton has 11480 states and 12822 transitions. Word has length 326 [2024-10-13 23:28:24,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:24,476 INFO L471 AbstractCegarLoop]: Abstraction has 11480 states and 12822 transitions. [2024-10-13 23:28:24,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:24,477 INFO L276 IsEmpty]: Start isEmpty. Operand 11480 states and 12822 transitions. [2024-10-13 23:28:24,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-10-13 23:28:24,483 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:24,483 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:24,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 23:28:24,483 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:24,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:24,484 INFO L85 PathProgramCache]: Analyzing trace with hash 787229754, now seen corresponding path program 1 times [2024-10-13 23:28:24,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:24,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835560685] [2024-10-13 23:28:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:24,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:24,971 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-13 23:28:24,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:24,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835560685] [2024-10-13 23:28:24,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835560685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:24,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:24,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 23:28:24,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872099335] [2024-10-13 23:28:24,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:24,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 23:28:24,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:24,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 23:28:24,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:24,973 INFO L87 Difference]: Start difference. First operand 11480 states and 12822 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:25,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:25,938 INFO L93 Difference]: Finished difference Result 27205 states and 30324 transitions. [2024-10-13 23:28:25,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 23:28:25,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2024-10-13 23:28:25,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:25,955 INFO L225 Difference]: With dead ends: 27205 [2024-10-13 23:28:25,955 INFO L226 Difference]: Without dead ends: 15171 [2024-10-13 23:28:25,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:25,966 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 311 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:25,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 351 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 23:28:25,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15171 states. [2024-10-13 23:28:26,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15171 to 10359. [2024-10-13 23:28:26,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10359 states, 10358 states have (on average 1.1105425757868315) internal successors, (11503), 10358 states have internal predecessors, (11503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:26,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10359 states to 10359 states and 11503 transitions. [2024-10-13 23:28:26,076 INFO L78 Accepts]: Start accepts. Automaton has 10359 states and 11503 transitions. Word has length 337 [2024-10-13 23:28:26,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:26,077 INFO L471 AbstractCegarLoop]: Abstraction has 10359 states and 11503 transitions. [2024-10-13 23:28:26,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:26,077 INFO L276 IsEmpty]: Start isEmpty. Operand 10359 states and 11503 transitions. [2024-10-13 23:28:26,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-10-13 23:28:26,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:26,084 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:26,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 23:28:26,084 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:26,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:26,085 INFO L85 PathProgramCache]: Analyzing trace with hash -861806150, now seen corresponding path program 1 times [2024-10-13 23:28:26,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:26,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786066084] [2024-10-13 23:28:26,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:26,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:26,420 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-13 23:28:26,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:26,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786066084] [2024-10-13 23:28:26,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786066084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:26,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:26,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 23:28:26,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113011623] [2024-10-13 23:28:26,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:26,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 23:28:26,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:26,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 23:28:26,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:26,423 INFO L87 Difference]: Start difference. First operand 10359 states and 11503 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:27,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:27,141 INFO L93 Difference]: Finished difference Result 22192 states and 24551 transitions. [2024-10-13 23:28:27,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 23:28:27,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 350 [2024-10-13 23:28:27,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:27,152 INFO L225 Difference]: With dead ends: 22192 [2024-10-13 23:28:27,152 INFO L226 Difference]: Without dead ends: 11834 [2024-10-13 23:28:27,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:27,158 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 327 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:27,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 54 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 23:28:27,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11834 states. [2024-10-13 23:28:27,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11834 to 9618. [2024-10-13 23:28:27,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9618 states, 9617 states have (on average 1.1073099719247166) internal successors, (10649), 9617 states have internal predecessors, (10649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:27,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9618 states to 9618 states and 10649 transitions. [2024-10-13 23:28:27,296 INFO L78 Accepts]: Start accepts. Automaton has 9618 states and 10649 transitions. Word has length 350 [2024-10-13 23:28:27,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:27,296 INFO L471 AbstractCegarLoop]: Abstraction has 9618 states and 10649 transitions. [2024-10-13 23:28:27,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:27,297 INFO L276 IsEmpty]: Start isEmpty. Operand 9618 states and 10649 transitions. [2024-10-13 23:28:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-10-13 23:28:27,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:27,303 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:27,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 23:28:27,304 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:27,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:27,304 INFO L85 PathProgramCache]: Analyzing trace with hash -684250499, now seen corresponding path program 1 times [2024-10-13 23:28:27,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:27,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634183787] [2024-10-13 23:28:27,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:27,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-13 23:28:27,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634183787] [2024-10-13 23:28:27,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634183787] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:27,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:27,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:27,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307966009] [2024-10-13 23:28:27,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:27,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 23:28:27,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:27,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 23:28:27,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:27,509 INFO L87 Difference]: Start difference. First operand 9618 states and 10649 transitions. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:28,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:28,372 INFO L93 Difference]: Finished difference Result 26248 states and 29040 transitions. [2024-10-13 23:28:28,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 23:28:28,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2024-10-13 23:28:28,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:28,393 INFO L225 Difference]: With dead ends: 26248 [2024-10-13 23:28:28,393 INFO L226 Difference]: Without dead ends: 16631 [2024-10-13 23:28:28,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:28,404 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 201 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:28,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 68 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 23:28:28,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16631 states. [2024-10-13 23:28:28,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16631 to 15332. [2024-10-13 23:28:28,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15332 states, 15331 states have (on average 1.1049507533755136) internal successors, (16940), 15331 states have internal predecessors, (16940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15332 states to 15332 states and 16940 transitions. [2024-10-13 23:28:28,558 INFO L78 Accepts]: Start accepts. Automaton has 15332 states and 16940 transitions. Word has length 385 [2024-10-13 23:28:28,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:28,559 INFO L471 AbstractCegarLoop]: Abstraction has 15332 states and 16940 transitions. [2024-10-13 23:28:28,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 15332 states and 16940 transitions. [2024-10-13 23:28:28,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-10-13 23:28:28,572 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:28,572 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:28,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 23:28:28,572 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:28,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:28,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1767034500, now seen corresponding path program 1 times [2024-10-13 23:28:28,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:28,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086850741] [2024-10-13 23:28:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:28,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:28,949 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-10-13 23:28:28,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:28,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086850741] [2024-10-13 23:28:28,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086850741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:28,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:28,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:28,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66926890] [2024-10-13 23:28:28,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:28,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 23:28:28,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:28,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 23:28:28,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:28,951 INFO L87 Difference]: Start difference. First operand 15332 states and 16940 transitions. Second operand has 4 states, 4 states have (on average 94.25) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:29,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:29,763 INFO L93 Difference]: Finished difference Result 29566 states and 32663 transitions. [2024-10-13 23:28:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 23:28:29,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 530 [2024-10-13 23:28:29,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:29,779 INFO L225 Difference]: With dead ends: 29566 [2024-10-13 23:28:29,780 INFO L226 Difference]: Without dead ends: 16631 [2024-10-13 23:28:29,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 23:28:29,788 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 195 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:29,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 61 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 23:28:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16631 states. [2024-10-13 23:28:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16631 to 15148. [2024-10-13 23:28:29,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15148 states, 15147 states have (on average 1.1043110847032416) internal successors, (16727), 15147 states have internal predecessors, (16727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:29,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15148 states to 15148 states and 16727 transitions. [2024-10-13 23:28:29,916 INFO L78 Accepts]: Start accepts. Automaton has 15148 states and 16727 transitions. Word has length 530 [2024-10-13 23:28:29,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:29,916 INFO L471 AbstractCegarLoop]: Abstraction has 15148 states and 16727 transitions. [2024-10-13 23:28:29,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:29,917 INFO L276 IsEmpty]: Start isEmpty. Operand 15148 states and 16727 transitions. [2024-10-13 23:28:29,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-10-13 23:28:29,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:29,935 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:29,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-13 23:28:29,935 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:29,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash -695743898, now seen corresponding path program 1 times [2024-10-13 23:28:29,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:29,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016841443] [2024-10-13 23:28:29,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:29,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:30,267 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2024-10-13 23:28:30,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:30,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016841443] [2024-10-13 23:28:30,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016841443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:30,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:30,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:30,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814566534] [2024-10-13 23:28:30,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:30,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:30,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:30,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:30,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:30,269 INFO L87 Difference]: Start difference. First operand 15148 states and 16727 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:30,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:30,885 INFO L93 Difference]: Finished difference Result 28099 states and 31044 transitions. [2024-10-13 23:28:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:30,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 544 [2024-10-13 23:28:30,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:30,902 INFO L225 Difference]: With dead ends: 28099 [2024-10-13 23:28:30,903 INFO L226 Difference]: Without dead ends: 15164 [2024-10-13 23:28:30,912 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 [2024-10-13 23:28:30,912 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 101 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:30,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 158 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 23:28:30,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15164 states. [2024-10-13 23:28:31,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15164 to 14780. [2024-10-13 23:28:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14780 states, 14779 states have (on average 1.0973678868664998) internal successors, (16218), 14779 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:31,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14780 states to 14780 states and 16218 transitions. [2024-10-13 23:28:31,101 INFO L78 Accepts]: Start accepts. Automaton has 14780 states and 16218 transitions. Word has length 544 [2024-10-13 23:28:31,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:31,102 INFO L471 AbstractCegarLoop]: Abstraction has 14780 states and 16218 transitions. [2024-10-13 23:28:31,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:31,102 INFO L276 IsEmpty]: Start isEmpty. Operand 14780 states and 16218 transitions. [2024-10-13 23:28:31,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-10-13 23:28:31,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 23:28:31,120 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:31,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 23:28:31,121 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 23:28:31,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 23:28:31,121 INFO L85 PathProgramCache]: Analyzing trace with hash -149796187, now seen corresponding path program 1 times [2024-10-13 23:28:31,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 23:28:31,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919186374] [2024-10-13 23:28:31,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 23:28:31,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 23:28:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 23:28:31,383 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2024-10-13 23:28:31,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 23:28:31,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919186374] [2024-10-13 23:28:31,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919186374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 23:28:31,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 23:28:31,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 23:28:31,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049675383] [2024-10-13 23:28:31,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 23:28:31,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 23:28:31,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 23:28:31,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 23:28:31,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 23:28:31,385 INFO L87 Difference]: Start difference. First operand 14780 states and 16218 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:31,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 23:28:31,927 INFO L93 Difference]: Finished difference Result 30659 states and 33606 transitions. [2024-10-13 23:28:31,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 23:28:31,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 545 [2024-10-13 23:28:31,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 23:28:31,929 INFO L225 Difference]: With dead ends: 30659 [2024-10-13 23:28:31,929 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 23:28:31,938 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 [2024-10-13 23:28:31,939 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 100 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 23:28:31,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 125 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 23:28:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 23:28:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 23:28:31,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:31,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 23:28:31,940 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 545 [2024-10-13 23:28:31,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 23:28:31,940 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 23:28:31,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 23:28:31,941 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 23:28:31,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 23:28:31,944 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-13 23:28:31,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-13 23:28:31,947 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 23:28:31,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 23:28:40,344 WARN L286 SmtUtils]: Spent 8.39s on a formula simplification. DAG size of input: 493 DAG size of output: 609 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-10-13 23:28:42,392 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 23:28:42,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:28:42 BoogieIcfgContainer [2024-10-13 23:28:42,411 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 23:28:42,411 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 23:28:42,412 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 23:28:42,412 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 23:28:42,412 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:27:58" (3/4) ... [2024-10-13 23:28:42,415 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 23:28:42,436 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-13 23:28:42,437 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-13 23:28:42,438 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 23:28:42,439 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 23:28:42,628 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 23:28:42,628 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 23:28:42,628 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 23:28:42,629 INFO L158 Benchmark]: Toolchain (without parser) took 46370.40ms. Allocated memory was 180.4MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 109.4MB in the beginning and 943.2MB in the end (delta: -833.8MB). Peak memory consumption was 290.5MB. Max. memory is 16.1GB. [2024-10-13 23:28:42,629 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory was 96.2MB in the beginning and 96.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 23:28:42,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 723.45ms. Allocated memory is still 180.4MB. Free memory was 109.2MB in the beginning and 118.5MB in the end (delta: -9.3MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-10-13 23:28:42,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.41ms. Allocated memory is still 180.4MB. Free memory was 118.5MB in the beginning and 101.0MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-13 23:28:42,630 INFO L158 Benchmark]: Boogie Preprocessor took 196.04ms. Allocated memory is still 180.4MB. Free memory was 101.0MB in the beginning and 136.1MB in the end (delta: -35.1MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2024-10-13 23:28:42,630 INFO L158 Benchmark]: RCFGBuilder took 1570.67ms. Allocated memory was 180.4MB in the beginning and 264.2MB in the end (delta: 83.9MB). Free memory was 136.1MB in the beginning and 186.4MB in the end (delta: -50.4MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. [2024-10-13 23:28:42,630 INFO L158 Benchmark]: TraceAbstraction took 43531.68ms. Allocated memory was 264.2MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 185.4MB in the beginning and 961.0MB in the end (delta: -775.6MB). Peak memory consumption was 790.5MB. Max. memory is 16.1GB. [2024-10-13 23:28:42,630 INFO L158 Benchmark]: Witness Printer took 216.98ms. Allocated memory is still 1.3GB. Free memory was 961.0MB in the beginning and 943.2MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-13 23:28:42,635 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory was 96.2MB in the beginning and 96.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 723.45ms. Allocated memory is still 180.4MB. Free memory was 109.2MB in the beginning and 118.5MB in the end (delta: -9.3MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 123.41ms. Allocated memory is still 180.4MB. Free memory was 118.5MB in the beginning and 101.0MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 196.04ms. Allocated memory is still 180.4MB. Free memory was 101.0MB in the beginning and 136.1MB in the end (delta: -35.1MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. * RCFGBuilder took 1570.67ms. Allocated memory was 180.4MB in the beginning and 264.2MB in the end (delta: 83.9MB). Free memory was 136.1MB in the beginning and 186.4MB in the end (delta: -50.4MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. * TraceAbstraction took 43531.68ms. Allocated memory was 264.2MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 185.4MB in the beginning and 961.0MB in the end (delta: -775.6MB). Peak memory consumption was 790.5MB. Max. memory is 16.1GB. * Witness Printer took 216.98ms. Allocated memory is still 1.3GB. Free memory was 961.0MB in the beginning and 943.2MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 103]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.0s, OverallIterations: 25, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 19.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4629 SdHoareTripleChecker+Valid, 17.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4629 mSDsluCounter, 5323 SdHoareTripleChecker+Invalid, 14.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 638 mSDsCounter, 2129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17282 IncrementalHoareTripleChecker+Invalid, 19411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2129 mSolverCounterUnsat, 4685 mSDtfsCounter, 17282 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 651 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15332occurred in iteration=22, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 25 MinimizatonAttempts, 26511 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 7096 NumberOfCodeBlocks, 7096 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 7069 ConstructedInterpolants, 0 QuantifiedInterpolants, 20298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 817 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 27 InterpolantComputations, 25 PerfectInterpolantSequences, 6513/6626 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a29 <= 599999) && (a4 == 1)) && (a25 <= 9)) || ((((((long long) a23 + 43) <= 0) && (a29 <= 599999)) && (a4 == 1)) && (a25 == 10))) || ((((a29 <= 140) && (a4 == 0)) && (a23 <= 262)) && (a25 <= 9))) || ((((((long long) a23 + 43) <= 0) && (a4 == 0)) && (a29 <= 599999)) && (a25 <= 9))) || (((a25 == 11) && (a29 <= 599999)) && (a4 == 1))) || ((((307 <= a23) && (a29 <= 599999)) && (a4 == 1)) && (a25 == 10))) || (((((long long) a23 + 43) <= 0) && (a29 <= 275)) && (a4 == 1))) || (((a25 == 13) && (a29 <= 599999)) && (a4 == 1))) || (((a4 == 0) && (a25 == 10)) && (a29 <= 130))) || (((a29 <= 275) && (a25 == 12)) && (a4 == 0))) || ((((a25 == 13) && (a4 == 0)) && (((long long) 35913 + a29) <= 0)) && (a23 <= 137))) || (((a29 <= 244) && (a4 == 1)) && (a25 == 10))) || ((((((long long) a23 + 43) <= 0) && (a4 == 0)) && (a25 == 11)) && (a29 <= 599999))) || ((((a29 <= 140) && (a4 == 0)) && (a23 <= 262)) && (a25 == 10))) || (((a25 == 12) && (a29 <= 599999)) && (a4 == 1))) || (((a25 == 11) && (a4 == 1)) && (a23 <= 137))) || ((((a25 == 12) && (a4 == 0)) && (a29 <= 599999)) && (a23 <= 137))) || ((((a25 == 13) && (((long long) a23 + 43) <= 0)) && (a29 <= 275)) && (a4 == 0))) || ((((a29 <= 275) && (a4 == 0)) && (a25 == 11)) && (a23 <= 262))) RESULT: Ultimate proved your program to be correct! [2024-10-13 23:28:42,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE