./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label58.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem15_label58.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 d01c93de245456455f0527bcf882987e2bed2e3604b850da24f21647f0ce8431 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 10:43:24,159 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 10:43:24,220 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 10:43:24,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 10:43:24,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 10:43:24,251 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 10:43:24,252 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 10:43:24,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 10:43:24,253 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 10:43:24,254 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 10:43:24,255 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 10:43:24,255 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 10:43:24,255 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 10:43:24,256 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 10:43:24,256 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 10:43:24,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 10:43:24,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 10:43:24,259 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 10:43:24,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 10:43:24,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 10:43:24,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 10:43:24,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 10:43:24,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 10:43:24,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 10:43:24,260 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 10:43:24,260 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 10:43:24,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 10:43:24,260 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 10:43:24,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 10:43:24,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 10:43:24,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 10:43:24,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 10:43:24,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:43:24,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 10:43:24,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 10:43:24,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 10:43:24,261 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 10:43:24,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 10:43:24,262 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 10:43:24,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 10:43:24,262 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 10:43:24,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 10:43:24,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d01c93de245456455f0527bcf882987e2bed2e3604b850da24f21647f0ce8431 [2024-11-18 10:43:24,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 10:43:24,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 10:43:24,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 10:43:24,515 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 10:43:24,516 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 10:43:24,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label58.c [2024-11-18 10:43:25,913 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 10:43:26,185 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 10:43:26,186 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label58.c [2024-11-18 10:43:26,208 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8b1314ca/97e852f1113b45f38c63f7e872e14648/FLAG939dffff5 [2024-11-18 10:43:26,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8b1314ca/97e852f1113b45f38c63f7e872e14648 [2024-11-18 10:43:26,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 10:43:26,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 10:43:26,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 10:43:26,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 10:43:26,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 10:43:26,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:43:26" (1/1) ... [2024-11-18 10:43:26,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b897a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:26, skipping insertion in model container [2024-11-18 10:43:26,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:43:26" (1/1) ... [2024-11-18 10:43:26,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 10:43:26,500 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label58.c[6184,6197] [2024-11-18 10:43:26,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:43:26,776 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 10:43:26,802 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label58.c[6184,6197] [2024-11-18 10:43:27,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:43:27,031 INFO L204 MainTranslator]: Completed translation [2024-11-18 10:43:27,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27 WrapperNode [2024-11-18 10:43:27,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 10:43:27,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 10:43:27,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 10:43:27,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 10:43:27,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,188 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760 [2024-11-18 10:43:27,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 10:43:27,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 10:43:27,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 10:43:27,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 10:43:27,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,324 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 10:43:27,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,324 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,361 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 10:43:27,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 10:43:27,398 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 10:43:27,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 10:43:27,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (1/1) ... [2024-11-18 10:43:27,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:43:27,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:43:27,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 10:43:27,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 10:43:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 10:43:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 10:43:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 10:43:27,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 10:43:27,529 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 10:43:27,530 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 10:43:29,336 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-18 10:43:29,337 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 10:43:29,358 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 10:43:29,359 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 10:43:29,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:43:29 BoogieIcfgContainer [2024-11-18 10:43:29,359 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 10:43:29,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 10:43:29,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 10:43:29,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 10:43:29,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:43:26" (1/3) ... [2024-11-18 10:43:29,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2dec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:43:29, skipping insertion in model container [2024-11-18 10:43:29,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:27" (2/3) ... [2024-11-18 10:43:29,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2dec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:43:29, skipping insertion in model container [2024-11-18 10:43:29,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:43:29" (3/3) ... [2024-11-18 10:43:29,365 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label58.c [2024-11-18 10:43:29,377 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 10:43:29,377 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 10:43:29,439 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 10:43:29,444 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;@7c64cf76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 10:43:29,444 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 10:43:29,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 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) [2024-11-18 10:43:29,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-18 10:43:29,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:29,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:29,457 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:29,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:29,461 INFO L85 PathProgramCache]: Analyzing trace with hash 761214138, now seen corresponding path program 1 times [2024-11-18 10:43:29,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:29,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894950763] [2024-11-18 10:43:29,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:29,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:29,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:43:29,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:29,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894950763] [2024-11-18 10:43:29,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894950763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:29,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:29,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:43:29,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529329817] [2024-11-18 10:43:29,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:30,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:30,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:30,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:30,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:30,024 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 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 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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) [2024-11-18 10:43:31,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:31,789 INFO L93 Difference]: Finished difference Result 1154 states and 2106 transitions. [2024-11-18 10:43:31,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:31,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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 50 [2024-11-18 10:43:31,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:31,809 INFO L225 Difference]: With dead ends: 1154 [2024-11-18 10:43:31,809 INFO L226 Difference]: Without dead ends: 665 [2024-11-18 10:43:31,812 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 [2024-11-18 10:43:31,815 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 271 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:31,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 383 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-18 10:43:31,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-18 10:43:31,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 663. [2024-11-18 10:43:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 1.4818731117824773) internal successors, (981), 662 states have internal predecessors, (981), 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) [2024-11-18 10:43:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 981 transitions. [2024-11-18 10:43:31,885 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 981 transitions. Word has length 50 [2024-11-18 10:43:31,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:31,885 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 981 transitions. [2024-11-18 10:43:31,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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) [2024-11-18 10:43:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 981 transitions. [2024-11-18 10:43:31,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 10:43:31,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:31,888 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, 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] [2024-11-18 10:43:31,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 10:43:31,891 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:31,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:31,892 INFO L85 PathProgramCache]: Analyzing trace with hash -424711115, now seen corresponding path program 1 times [2024-11-18 10:43:31,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:31,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546178982] [2024-11-18 10:43:31,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:31,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:43:32,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:32,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546178982] [2024-11-18 10:43:32,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546178982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:32,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:32,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:43:32,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213299421] [2024-11-18 10:43:32,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:32,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:32,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:32,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:32,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:32,394 INFO L87 Difference]: Start difference. First operand 663 states and 981 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2024-11-18 10:43:33,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:33,633 INFO L93 Difference]: Finished difference Result 1624 states and 2315 transitions. [2024-11-18 10:43:33,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:33,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 115 [2024-11-18 10:43:33,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:33,636 INFO L225 Difference]: With dead ends: 1624 [2024-11-18 10:43:33,636 INFO L226 Difference]: Without dead ends: 963 [2024-11-18 10:43:33,637 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 [2024-11-18 10:43:33,638 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:33,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 337 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 10:43:33,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-18 10:43:33,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2024-11-18 10:43:33,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.362785862785863) internal successors, (1311), 962 states have internal predecessors, (1311), 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) [2024-11-18 10:43:33,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1311 transitions. [2024-11-18 10:43:33,656 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1311 transitions. Word has length 115 [2024-11-18 10:43:33,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:33,657 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1311 transitions. [2024-11-18 10:43:33,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2024-11-18 10:43:33,657 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1311 transitions. [2024-11-18 10:43:33,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-18 10:43:33,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:33,658 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, 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] [2024-11-18 10:43:33,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 10:43:33,659 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:33,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:33,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1532636292, now seen corresponding path program 1 times [2024-11-18 10:43:33,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:33,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875150382] [2024-11-18 10:43:33,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:33,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:43:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:33,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875150382] [2024-11-18 10:43:33,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875150382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:33,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:33,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:43:33,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391903257] [2024-11-18 10:43:33,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:33,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:33,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:33,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:33,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:33,807 INFO L87 Difference]: Start difference. First operand 963 states and 1311 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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) [2024-11-18 10:43:35,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:35,025 INFO L93 Difference]: Finished difference Result 2229 states and 3186 transitions. [2024-11-18 10:43:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:35,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 120 [2024-11-18 10:43:35,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:35,030 INFO L225 Difference]: With dead ends: 2229 [2024-11-18 10:43:35,030 INFO L226 Difference]: Without dead ends: 1567 [2024-11-18 10:43:35,032 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 [2024-11-18 10:43:35,033 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 256 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:35,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 318 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 10:43:35,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-18 10:43:35,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1266. [2024-11-18 10:43:35,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 1.3043478260869565) internal successors, (1650), 1265 states have internal predecessors, (1650), 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) [2024-11-18 10:43:35,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1650 transitions. [2024-11-18 10:43:35,052 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1650 transitions. Word has length 120 [2024-11-18 10:43:35,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:35,053 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1650 transitions. [2024-11-18 10:43:35,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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) [2024-11-18 10:43:35,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1650 transitions. [2024-11-18 10:43:35,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-18 10:43:35,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:35,060 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:35,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 10:43:35,061 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:35,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:35,061 INFO L85 PathProgramCache]: Analyzing trace with hash -712067031, now seen corresponding path program 1 times [2024-11-18 10:43:35,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:35,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103663192] [2024-11-18 10:43:35,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:35,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:35,299 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:43:35,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:35,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103663192] [2024-11-18 10:43:35,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103663192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:35,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:35,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:43:35,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968141003] [2024-11-18 10:43:35,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:35,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:43:35,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:35,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:43:35,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:43:35,304 INFO L87 Difference]: Start difference. First operand 1266 states and 1650 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2024-11-18 10:43:37,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:37,620 INFO L93 Difference]: Finished difference Result 4668 states and 6169 transitions. [2024-11-18 10:43:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:43:37,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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 216 [2024-11-18 10:43:37,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:37,630 INFO L225 Difference]: With dead ends: 4668 [2024-11-18 10:43:37,630 INFO L226 Difference]: Without dead ends: 3404 [2024-11-18 10:43:37,633 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 [2024-11-18 10:43:37,634 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 484 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:37,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 377 Invalid, 2546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-18 10:43:37,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2024-11-18 10:43:37,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3381. [2024-11-18 10:43:37,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 3380 states have (on average 1.2363905325443787) internal successors, (4179), 3380 states have internal predecessors, (4179), 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) [2024-11-18 10:43:37,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 4179 transitions. [2024-11-18 10:43:37,677 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 4179 transitions. Word has length 216 [2024-11-18 10:43:37,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:37,679 INFO L471 AbstractCegarLoop]: Abstraction has 3381 states and 4179 transitions. [2024-11-18 10:43:37,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2024-11-18 10:43:37,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 4179 transitions. [2024-11-18 10:43:37,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-18 10:43:37,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:37,683 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:37,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 10:43:37,684 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:37,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:37,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1627924641, now seen corresponding path program 1 times [2024-11-18 10:43:37,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:37,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835627911] [2024-11-18 10:43:37,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:37,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:37,865 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-18 10:43:37,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:37,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835627911] [2024-11-18 10:43:37,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835627911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:37,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:37,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:43:37,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804087173] [2024-11-18 10:43:37,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:37,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:37,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:37,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:37,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:37,869 INFO L87 Difference]: Start difference. First operand 3381 states and 4179 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 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) [2024-11-18 10:43:38,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:38,975 INFO L93 Difference]: Finished difference Result 8563 states and 10751 transitions. [2024-11-18 10:43:38,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:38,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 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 220 [2024-11-18 10:43:38,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:38,988 INFO L225 Difference]: With dead ends: 8563 [2024-11-18 10:43:38,989 INFO L226 Difference]: Without dead ends: 5483 [2024-11-18 10:43:38,992 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 [2024-11-18 10:43:38,993 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:38,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 339 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 10:43:38,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5483 states. [2024-11-18 10:43:39,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5483 to 5478. [2024-11-18 10:43:39,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.1683403322987036) internal successors, (6399), 5477 states have internal predecessors, (6399), 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) [2024-11-18 10:43:39,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6399 transitions. [2024-11-18 10:43:39,059 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6399 transitions. Word has length 220 [2024-11-18 10:43:39,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:39,060 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6399 transitions. [2024-11-18 10:43:39,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 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) [2024-11-18 10:43:39,061 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6399 transitions. [2024-11-18 10:43:39,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-18 10:43:39,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:39,065 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:39,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 10:43:39,065 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:39,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:39,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1333320667, now seen corresponding path program 1 times [2024-11-18 10:43:39,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:39,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249814595] [2024-11-18 10:43:39,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:39,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:39,549 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-18 10:43:39,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:39,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249814595] [2024-11-18 10:43:39,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249814595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:39,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:39,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:43:39,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023281234] [2024-11-18 10:43:39,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:39,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:39,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:39,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:39,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:39,552 INFO L87 Difference]: Start difference. First operand 5478 states and 6399 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 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) [2024-11-18 10:43:40,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:40,710 INFO L93 Difference]: Finished difference Result 10655 states and 12485 transitions. [2024-11-18 10:43:40,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:40,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 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 322 [2024-11-18 10:43:40,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:40,725 INFO L225 Difference]: With dead ends: 10655 [2024-11-18 10:43:40,725 INFO L226 Difference]: Without dead ends: 5478 [2024-11-18 10:43:40,731 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 [2024-11-18 10:43:40,732 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:40,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 10:43:40,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2024-11-18 10:43:40,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5478. [2024-11-18 10:43:40,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.1672448420668249) internal successors, (6393), 5477 states have internal predecessors, (6393), 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) [2024-11-18 10:43:40,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6393 transitions. [2024-11-18 10:43:40,810 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6393 transitions. Word has length 322 [2024-11-18 10:43:40,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:40,810 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6393 transitions. [2024-11-18 10:43:40,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 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) [2024-11-18 10:43:40,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6393 transitions. [2024-11-18 10:43:40,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-18 10:43:40,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:40,814 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:40,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 10:43:40,814 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:40,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:40,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1986477066, now seen corresponding path program 1 times [2024-11-18 10:43:40,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:40,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710044693] [2024-11-18 10:43:40,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:40,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-18 10:43:40,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:40,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710044693] [2024-11-18 10:43:40,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710044693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:40,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:40,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:43:40,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135320160] [2024-11-18 10:43:40,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:40,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:40,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:40,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:40,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:40,970 INFO L87 Difference]: Start difference. First operand 5478 states and 6393 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2024-11-18 10:43:42,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:42,326 INFO L93 Difference]: Finished difference Result 11851 states and 14145 transitions. [2024-11-18 10:43:42,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:42,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 [2024-11-18 10:43:42,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:42,392 INFO L225 Difference]: With dead ends: 11851 [2024-11-18 10:43:42,392 INFO L226 Difference]: Without dead ends: 6674 [2024-11-18 10:43:42,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:42,397 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 265 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:42,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 322 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 10:43:42,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2024-11-18 10:43:42,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 4577. [2024-11-18 10:43:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4577 states, 4576 states have (on average 1.1840034965034965) internal successors, (5418), 4576 states have internal predecessors, (5418), 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) [2024-11-18 10:43:42,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4577 states to 4577 states and 5418 transitions. [2024-11-18 10:43:42,453 INFO L78 Accepts]: Start accepts. Automaton has 4577 states and 5418 transitions. Word has length 337 [2024-11-18 10:43:42,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:42,454 INFO L471 AbstractCegarLoop]: Abstraction has 4577 states and 5418 transitions. [2024-11-18 10:43:42,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2024-11-18 10:43:42,454 INFO L276 IsEmpty]: Start isEmpty. Operand 4577 states and 5418 transitions. [2024-11-18 10:43:42,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-18 10:43:42,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:42,459 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:42,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 10:43:42,459 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:42,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:42,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1398840567, now seen corresponding path program 1 times [2024-11-18 10:43:42,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:42,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375178966] [2024-11-18 10:43:42,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:42,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:42,677 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-18 10:43:42,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:42,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375178966] [2024-11-18 10:43:42,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375178966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:42,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:42,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:43:42,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523880529] [2024-11-18 10:43:42,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:42,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:42,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:42,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:42,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:42,680 INFO L87 Difference]: Start difference. First operand 4577 states and 5418 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2024-11-18 10:43:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:43,933 INFO L93 Difference]: Finished difference Result 10955 states and 13233 transitions. [2024-11-18 10:43:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:43,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 396 [2024-11-18 10:43:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:43,948 INFO L225 Difference]: With dead ends: 10955 [2024-11-18 10:43:43,948 INFO L226 Difference]: Without dead ends: 6679 [2024-11-18 10:43:43,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:43,952 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 278 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:43,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 637 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 10:43:43,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2024-11-18 10:43:44,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6081. [2024-11-18 10:43:44,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6081 states, 6080 states have (on average 1.1572368421052632) internal successors, (7036), 6080 states have internal predecessors, (7036), 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) [2024-11-18 10:43:44,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6081 states to 6081 states and 7036 transitions. [2024-11-18 10:43:44,019 INFO L78 Accepts]: Start accepts. Automaton has 6081 states and 7036 transitions. Word has length 396 [2024-11-18 10:43:44,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:44,020 INFO L471 AbstractCegarLoop]: Abstraction has 6081 states and 7036 transitions. [2024-11-18 10:43:44,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2024-11-18 10:43:44,021 INFO L276 IsEmpty]: Start isEmpty. Operand 6081 states and 7036 transitions. [2024-11-18 10:43:44,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-18 10:43:44,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:44,024 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:44,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 10:43:44,024 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:44,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:44,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1165325621, now seen corresponding path program 1 times [2024-11-18 10:43:44,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:44,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486473678] [2024-11-18 10:43:44,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:44,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:44,274 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:43:44,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:44,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486473678] [2024-11-18 10:43:44,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486473678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:44,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:44,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:43:44,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767958122] [2024-11-18 10:43:44,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:44,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:44,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:44,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:44,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:44,276 INFO L87 Difference]: Start difference. First operand 6081 states and 7036 transitions. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) [2024-11-18 10:43:45,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:45,461 INFO L93 Difference]: Finished difference Result 13965 states and 16476 transitions. [2024-11-18 10:43:45,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:45,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 402 [2024-11-18 10:43:45,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:45,472 INFO L225 Difference]: With dead ends: 13965 [2024-11-18 10:43:45,472 INFO L226 Difference]: Without dead ends: 8185 [2024-11-18 10:43:45,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:45,477 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 248 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:45,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 603 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 10:43:45,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8185 states. [2024-11-18 10:43:45,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8185 to 7584. [2024-11-18 10:43:45,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7584 states, 7583 states have (on average 1.1422919688777529) internal successors, (8662), 7583 states have internal predecessors, (8662), 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) [2024-11-18 10:43:45,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7584 states to 7584 states and 8662 transitions. [2024-11-18 10:43:45,549 INFO L78 Accepts]: Start accepts. Automaton has 7584 states and 8662 transitions. Word has length 402 [2024-11-18 10:43:45,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:45,549 INFO L471 AbstractCegarLoop]: Abstraction has 7584 states and 8662 transitions. [2024-11-18 10:43:45,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) [2024-11-18 10:43:45,550 INFO L276 IsEmpty]: Start isEmpty. Operand 7584 states and 8662 transitions. [2024-11-18 10:43:45,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-11-18 10:43:45,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:45,554 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, 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, 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] [2024-11-18 10:43:45,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 10:43:45,554 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:45,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:45,555 INFO L85 PathProgramCache]: Analyzing trace with hash -654482939, now seen corresponding path program 1 times [2024-11-18 10:43:45,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:45,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224040080] [2024-11-18 10:43:45,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:45,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:45,751 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-18 10:43:45,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:45,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224040080] [2024-11-18 10:43:45,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224040080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:45,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:45,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:43:45,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822775172] [2024-11-18 10:43:45,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:45,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:45,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:45,757 INFO L87 Difference]: Start difference. First operand 7584 states and 8662 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2024-11-18 10:43:47,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:47,219 INFO L93 Difference]: Finished difference Result 16661 states and 19392 transitions. [2024-11-18 10:43:47,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:47,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 419 [2024-11-18 10:43:47,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:47,233 INFO L225 Difference]: With dead ends: 16661 [2024-11-18 10:43:47,233 INFO L226 Difference]: Without dead ends: 9378 [2024-11-18 10:43:47,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:47,240 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 246 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:47,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 619 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 10:43:47,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9378 states. [2024-11-18 10:43:47,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9378 to 9075. [2024-11-18 10:43:47,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9075 states, 9074 states have (on average 1.1318051575931232) internal successors, (10270), 9074 states have internal predecessors, (10270), 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) [2024-11-18 10:43:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9075 states to 9075 states and 10270 transitions. [2024-11-18 10:43:47,356 INFO L78 Accepts]: Start accepts. Automaton has 9075 states and 10270 transitions. Word has length 419 [2024-11-18 10:43:47,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:47,356 INFO L471 AbstractCegarLoop]: Abstraction has 9075 states and 10270 transitions. [2024-11-18 10:43:47,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2024-11-18 10:43:47,357 INFO L276 IsEmpty]: Start isEmpty. Operand 9075 states and 10270 transitions. [2024-11-18 10:43:47,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2024-11-18 10:43:47,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:47,363 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:47,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 10:43:47,363 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:47,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:47,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1325480253, now seen corresponding path program 1 times [2024-11-18 10:43:47,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:47,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435175539] [2024-11-18 10:43:47,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:47,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 505 proven. 39 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-18 10:43:47,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:47,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435175539] [2024-11-18 10:43:47,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435175539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:43:47,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546870978] [2024-11-18 10:43:47,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:47,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:43:47,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:43:47,840 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:43:47,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 10:43:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:48,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:43:48,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:43:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-11-18 10:43:48,143 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:43:48,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546870978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:48,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:43:48,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-18 10:43:48,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567457076] [2024-11-18 10:43:48,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:48,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:48,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:48,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:48,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 10:43:48,145 INFO L87 Difference]: Start difference. First operand 9075 states and 10270 transitions. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2024-11-18 10:43:49,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:49,253 INFO L93 Difference]: Finished difference Result 20240 states and 23189 transitions. [2024-11-18 10:43:49,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:49,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 534 [2024-11-18 10:43:49,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:49,270 INFO L225 Difference]: With dead ends: 20240 [2024-11-18 10:43:49,270 INFO L226 Difference]: Without dead ends: 11466 [2024-11-18 10:43:49,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 10:43:49,279 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 367 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:49,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 447 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 10:43:49,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11466 states. [2024-11-18 10:43:49,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11466 to 11466. [2024-11-18 10:43:49,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11466 states, 11465 states have (on average 1.1365896205843873) internal successors, (13031), 11465 states have internal predecessors, (13031), 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) [2024-11-18 10:43:49,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11466 states to 11466 states and 13031 transitions. [2024-11-18 10:43:49,388 INFO L78 Accepts]: Start accepts. Automaton has 11466 states and 13031 transitions. Word has length 534 [2024-11-18 10:43:49,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:49,388 INFO L471 AbstractCegarLoop]: Abstraction has 11466 states and 13031 transitions. [2024-11-18 10:43:49,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2024-11-18 10:43:49,389 INFO L276 IsEmpty]: Start isEmpty. Operand 11466 states and 13031 transitions. [2024-11-18 10:43:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2024-11-18 10:43:49,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:49,393 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:49,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 10:43:49,594 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,SelfDestructingSolverStorable10 [2024-11-18 10:43:49,594 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:49,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:49,595 INFO L85 PathProgramCache]: Analyzing trace with hash 271255801, now seen corresponding path program 1 times [2024-11-18 10:43:49,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:49,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334734639] [2024-11-18 10:43:49,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:49,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 427 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-18 10:43:50,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:50,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334734639] [2024-11-18 10:43:50,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334734639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:50,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:50,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:43:50,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335979909] [2024-11-18 10:43:50,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:50,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:50,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:50,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:50,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:50,284 INFO L87 Difference]: Start difference. First operand 11466 states and 13031 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2024-11-18 10:43:52,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:52,017 INFO L93 Difference]: Finished difference Result 27130 states and 31138 transitions. [2024-11-18 10:43:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:52,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 538 [2024-11-18 10:43:52,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:52,055 INFO L225 Difference]: With dead ends: 27130 [2024-11-18 10:43:52,055 INFO L226 Difference]: Without dead ends: 15965 [2024-11-18 10:43:52,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:52,069 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 248 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:52,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 619 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-18 10:43:52,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15965 states. [2024-11-18 10:43:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15965 to 15655. [2024-11-18 10:43:52,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15655 states, 15654 states have (on average 1.128146160725693) internal successors, (17660), 15654 states have internal predecessors, (17660), 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) [2024-11-18 10:43:52,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15655 states to 15655 states and 17660 transitions. [2024-11-18 10:43:52,463 INFO L78 Accepts]: Start accepts. Automaton has 15655 states and 17660 transitions. Word has length 538 [2024-11-18 10:43:52,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:52,463 INFO L471 AbstractCegarLoop]: Abstraction has 15655 states and 17660 transitions. [2024-11-18 10:43:52,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2024-11-18 10:43:52,464 INFO L276 IsEmpty]: Start isEmpty. Operand 15655 states and 17660 transitions. [2024-11-18 10:43:52,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2024-11-18 10:43:52,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:52,481 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:52,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 10:43:52,481 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:52,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:52,485 INFO L85 PathProgramCache]: Analyzing trace with hash -276951373, now seen corresponding path program 1 times [2024-11-18 10:43:52,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:52,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490286575] [2024-11-18 10:43:52,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:52,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2024-11-18 10:43:52,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:52,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490286575] [2024-11-18 10:43:52,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490286575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:52,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:43:52,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:43:52,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350968106] [2024-11-18 10:43:52,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:52,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:52,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:52,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:52,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:52,934 INFO L87 Difference]: Start difference. First operand 15655 states and 17660 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-18 10:43:54,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:54,397 INFO L93 Difference]: Finished difference Result 32504 states and 36593 transitions. [2024-11-18 10:43:54,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:54,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 592 [2024-11-18 10:43:54,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:54,413 INFO L225 Difference]: With dead ends: 32504 [2024-11-18 10:43:54,414 INFO L226 Difference]: Without dead ends: 15655 [2024-11-18 10:43:54,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:43:54,428 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 252 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:54,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 666 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 10:43:54,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15655 states. [2024-11-18 10:43:54,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15655 to 15655. [2024-11-18 10:43:54,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15655 states, 15654 states have (on average 1.1262297176440526) internal successors, (17630), 15654 states have internal predecessors, (17630), 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) [2024-11-18 10:43:54,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15655 states to 15655 states and 17630 transitions. [2024-11-18 10:43:54,608 INFO L78 Accepts]: Start accepts. Automaton has 15655 states and 17630 transitions. Word has length 592 [2024-11-18 10:43:54,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:54,609 INFO L471 AbstractCegarLoop]: Abstraction has 15655 states and 17630 transitions. [2024-11-18 10:43:54,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-18 10:43:54,609 INFO L276 IsEmpty]: Start isEmpty. Operand 15655 states and 17630 transitions. [2024-11-18 10:43:54,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2024-11-18 10:43:54,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:54,617 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:54,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 10:43:54,617 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:54,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:54,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1316822850, now seen corresponding path program 1 times [2024-11-18 10:43:54,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:54,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683012059] [2024-11-18 10:43:54,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:54,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1074 backedges. 662 proven. 39 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-18 10:43:55,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:55,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683012059] [2024-11-18 10:43:55,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683012059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:43:55,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315580202] [2024-11-18 10:43:55,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:55,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:43:55,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:43:55,122 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) [2024-11-18 10:43:55,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 10:43:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:55,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:43:55,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:43:55,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1074 backedges. 550 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-11-18 10:43:55,463 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:43:55,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315580202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:43:55,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:43:55,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-18 10:43:55,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065041499] [2024-11-18 10:43:55,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:43:55,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:43:55,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:55,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:43:55,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 10:43:55,464 INFO L87 Difference]: Start difference. First operand 15655 states and 17630 transitions. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2024-11-18 10:43:57,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:43:57,007 INFO L93 Difference]: Finished difference Result 30706 states and 34619 transitions. [2024-11-18 10:43:57,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:43:57,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 613 [2024-11-18 10:43:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:43:57,023 INFO L225 Difference]: With dead ends: 30706 [2024-11-18 10:43:57,023 INFO L226 Difference]: Without dead ends: 15352 [2024-11-18 10:43:57,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 612 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 10:43:57,034 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 252 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:43:57,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 599 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 10:43:57,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15352 states. [2024-11-18 10:43:57,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15352 to 15351. [2024-11-18 10:43:57,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15351 states, 15350 states have (on average 1.0778501628664494) internal successors, (16545), 15350 states have internal predecessors, (16545), 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) [2024-11-18 10:43:57,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15351 states to 15351 states and 16545 transitions. [2024-11-18 10:43:57,154 INFO L78 Accepts]: Start accepts. Automaton has 15351 states and 16545 transitions. Word has length 613 [2024-11-18 10:43:57,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:43:57,155 INFO L471 AbstractCegarLoop]: Abstraction has 15351 states and 16545 transitions. [2024-11-18 10:43:57,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2024-11-18 10:43:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 15351 states and 16545 transitions. [2024-11-18 10:43:57,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2024-11-18 10:43:57,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:43:57,161 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, 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, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:43:57,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 10:43:57,362 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,SelfDestructingSolverStorable13 [2024-11-18 10:43:57,363 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:43:57,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:43:57,363 INFO L85 PathProgramCache]: Analyzing trace with hash -308044316, now seen corresponding path program 1 times [2024-11-18 10:43:57,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:43:57,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104484088] [2024-11-18 10:43:57,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:57,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:43:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:57,858 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 589 proven. 39 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-18 10:43:57,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:43:57,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104484088] [2024-11-18 10:43:57,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104484088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:43:57,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193202467] [2024-11-18 10:43:57,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:43:57,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:43:57,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:43:57,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:43:57,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 10:43:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:43:58,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-18 10:43:58,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:43:58,955 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 589 proven. 39 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-18 10:43:58,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 10:43:59,941 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 589 proven. 39 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-18 10:43:59,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193202467] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 10:43:59,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 10:43:59,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-18 10:43:59,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451986067] [2024-11-18 10:43:59,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 10:43:59,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 10:43:59,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:43:59,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 10:43:59,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-18 10:43:59,948 INFO L87 Difference]: Start difference. First operand 15351 states and 16545 transitions. Second operand has 9 states, 9 states have (on average 86.33333333333333) internal successors, (777), 8 states have internal predecessors, (777), 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) [2024-11-18 10:44:05,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:44:05,411 INFO L93 Difference]: Finished difference Result 38733 states and 41729 transitions. [2024-11-18 10:44:05,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 10:44:05,412 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 86.33333333333333) internal successors, (777), 8 states have internal predecessors, (777), 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 614 [2024-11-18 10:44:05,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:44:05,429 INFO L225 Difference]: With dead ends: 38733 [2024-11-18 10:44:05,429 INFO L226 Difference]: Without dead ends: 16546 [2024-11-18 10:44:05,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1237 GetRequests, 1223 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-18 10:44:05,449 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 2432 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 8416 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 8995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 8416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-18 10:44:05,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2432 Valid, 399 Invalid, 8995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 8416 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-18 10:44:05,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16546 states. [2024-11-18 10:44:05,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16546 to 12656. [2024-11-18 10:44:05,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12656 states, 12655 states have (on average 1.039352034768866) internal successors, (13153), 12655 states have internal predecessors, (13153), 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) [2024-11-18 10:44:05,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12656 states to 12656 states and 13153 transitions. [2024-11-18 10:44:05,629 INFO L78 Accepts]: Start accepts. Automaton has 12656 states and 13153 transitions. Word has length 614 [2024-11-18 10:44:05,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:44:05,629 INFO L471 AbstractCegarLoop]: Abstraction has 12656 states and 13153 transitions. [2024-11-18 10:44:05,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 86.33333333333333) internal successors, (777), 8 states have internal predecessors, (777), 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) [2024-11-18 10:44:05,630 INFO L276 IsEmpty]: Start isEmpty. Operand 12656 states and 13153 transitions. [2024-11-18 10:44:05,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2024-11-18 10:44:05,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:44:05,639 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:44:05,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 10:44:05,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:44:05,840 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:44:05,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:44:05,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1204547270, now seen corresponding path program 1 times [2024-11-18 10:44:05,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:44:05,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047168629] [2024-11-18 10:44:05,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:44:05,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:44:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:44:06,208 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 468 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-18 10:44:06,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:44:06,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047168629] [2024-11-18 10:44:06,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047168629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:44:06,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:44:06,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:44:06,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353371025] [2024-11-18 10:44:06,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:44:06,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:44:06,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:44:06,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:44:06,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:44:06,212 INFO L87 Difference]: Start difference. First operand 12656 states and 13153 transitions. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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) [2024-11-18 10:44:07,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:44:07,135 INFO L93 Difference]: Finished difference Result 28900 states and 30092 transitions. [2024-11-18 10:44:07,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:44:07,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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 646 [2024-11-18 10:44:07,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:44:07,153 INFO L225 Difference]: With dead ends: 28900 [2024-11-18 10:44:07,153 INFO L226 Difference]: Without dead ends: 16246 [2024-11-18 10:44:07,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:44:07,162 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 116 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:44:07,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 515 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:44:07,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16246 states. [2024-11-18 10:44:07,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16246 to 15947. [2024-11-18 10:44:07,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15947 states, 15946 states have (on average 1.0350558133701242) internal successors, (16505), 15946 states have internal predecessors, (16505), 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) [2024-11-18 10:44:07,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15947 states to 15947 states and 16505 transitions. [2024-11-18 10:44:07,300 INFO L78 Accepts]: Start accepts. Automaton has 15947 states and 16505 transitions. Word has length 646 [2024-11-18 10:44:07,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:44:07,301 INFO L471 AbstractCegarLoop]: Abstraction has 15947 states and 16505 transitions. [2024-11-18 10:44:07,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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) [2024-11-18 10:44:07,301 INFO L276 IsEmpty]: Start isEmpty. Operand 15947 states and 16505 transitions. [2024-11-18 10:44:07,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2024-11-18 10:44:07,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:44:07,310 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:44:07,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 10:44:07,311 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:44:07,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:44:07,311 INFO L85 PathProgramCache]: Analyzing trace with hash -3643755, now seen corresponding path program 1 times [2024-11-18 10:44:07,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:44:07,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133662317] [2024-11-18 10:44:07,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:44:07,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:44:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:44:07,678 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-18 10:44:07,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:44:07,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133662317] [2024-11-18 10:44:07,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133662317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:44:07,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:44:07,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:44:07,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182021612] [2024-11-18 10:44:07,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:44:07,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:44:07,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:44:07,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:44:07,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:44:07,681 INFO L87 Difference]: Start difference. First operand 15947 states and 16505 transitions. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2024-11-18 10:44:08,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:44:08,463 INFO L93 Difference]: Finished difference Result 34281 states and 35530 transitions. [2024-11-18 10:44:08,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:44:08,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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 710 [2024-11-18 10:44:08,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:44:08,481 INFO L225 Difference]: With dead ends: 34281 [2024-11-18 10:44:08,481 INFO L226 Difference]: Without dead ends: 18336 [2024-11-18 10:44:08,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:44:08,494 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 150 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:44:08,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 463 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 10:44:08,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18336 states. [2024-11-18 10:44:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18336 to 15038. [2024-11-18 10:44:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15038 states, 15037 states have (on average 1.0347143712176632) internal successors, (15559), 15037 states have internal predecessors, (15559), 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) [2024-11-18 10:44:08,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15038 states to 15038 states and 15559 transitions. [2024-11-18 10:44:08,686 INFO L78 Accepts]: Start accepts. Automaton has 15038 states and 15559 transitions. Word has length 710 [2024-11-18 10:44:08,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:44:08,687 INFO L471 AbstractCegarLoop]: Abstraction has 15038 states and 15559 transitions. [2024-11-18 10:44:08,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2024-11-18 10:44:08,687 INFO L276 IsEmpty]: Start isEmpty. Operand 15038 states and 15559 transitions. [2024-11-18 10:44:08,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2024-11-18 10:44:08,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:44:08,696 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:44:08,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 10:44:08,696 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:44:08,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:44:08,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1264778671, now seen corresponding path program 1 times [2024-11-18 10:44:08,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:44:08,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679420310] [2024-11-18 10:44:08,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:44:08,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:44:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:44:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1070 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2024-11-18 10:44:09,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:44:09,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679420310] [2024-11-18 10:44:09,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679420310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:44:09,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:44:09,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:44:09,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474815113] [2024-11-18 10:44:09,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:44:09,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:44:09,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:44:09,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:44:09,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:44:09,019 INFO L87 Difference]: Start difference. First operand 15038 states and 15559 transitions. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2024-11-18 10:44:09,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:44:09,689 INFO L93 Difference]: Finished difference Result 33362 states and 34517 transitions. [2024-11-18 10:44:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:44:09,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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 835 [2024-11-18 10:44:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:44:09,707 INFO L225 Difference]: With dead ends: 33362 [2024-11-18 10:44:09,707 INFO L226 Difference]: Without dead ends: 18625 [2024-11-18 10:44:09,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:44:09,718 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 314 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:44:09,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 513 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:44:09,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18625 states. [2024-11-18 10:44:09,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18625 to 17429. [2024-11-18 10:44:09,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17429 states, 17428 states have (on average 1.0320174431948588) internal successors, (17986), 17428 states have internal predecessors, (17986), 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) [2024-11-18 10:44:09,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17429 states to 17429 states and 17986 transitions. [2024-11-18 10:44:09,868 INFO L78 Accepts]: Start accepts. Automaton has 17429 states and 17986 transitions. Word has length 835 [2024-11-18 10:44:09,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:44:09,869 INFO L471 AbstractCegarLoop]: Abstraction has 17429 states and 17986 transitions. [2024-11-18 10:44:09,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2024-11-18 10:44:09,869 INFO L276 IsEmpty]: Start isEmpty. Operand 17429 states and 17986 transitions. [2024-11-18 10:44:09,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2024-11-18 10:44:09,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:44:09,879 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:44:09,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 10:44:09,879 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:44:09,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:44:09,880 INFO L85 PathProgramCache]: Analyzing trace with hash 396457613, now seen corresponding path program 1 times [2024-11-18 10:44:09,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:44:09,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074357154] [2024-11-18 10:44:09,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:44:09,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:44:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:44:10,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1086 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 895 trivial. 0 not checked. [2024-11-18 10:44:10,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:44:10,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074357154] [2024-11-18 10:44:10,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074357154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:44:10,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:44:10,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:44:10,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063957983] [2024-11-18 10:44:10,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:44:10,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:44:10,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:44:10,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:44:10,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:44:10,502 INFO L87 Difference]: Start difference. First operand 17429 states and 17986 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-18 10:44:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:44:11,434 INFO L93 Difference]: Finished difference Result 39655 states and 40951 transitions. [2024-11-18 10:44:11,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:44:11,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 856 [2024-11-18 10:44:11,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:44:11,457 INFO L225 Difference]: With dead ends: 39655 [2024-11-18 10:44:11,458 INFO L226 Difference]: Without dead ends: 22527 [2024-11-18 10:44:11,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:44:11,469 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 299 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:44:11,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 138 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:44:11,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22527 states. [2024-11-18 10:44:11,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22527 to 18629. [2024-11-18 10:44:11,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18629 states, 18628 states have (on average 1.0316190680695727) internal successors, (19217), 18628 states have internal predecessors, (19217), 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) [2024-11-18 10:44:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18629 states to 18629 states and 19217 transitions. [2024-11-18 10:44:11,646 INFO L78 Accepts]: Start accepts. Automaton has 18629 states and 19217 transitions. Word has length 856 [2024-11-18 10:44:11,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:44:11,647 INFO L471 AbstractCegarLoop]: Abstraction has 18629 states and 19217 transitions. [2024-11-18 10:44:11,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-18 10:44:11,647 INFO L276 IsEmpty]: Start isEmpty. Operand 18629 states and 19217 transitions. [2024-11-18 10:44:11,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 946 [2024-11-18 10:44:11,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:44:11,659 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:44:11,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 10:44:11,659 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:44:11,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:44:11,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1444827067, now seen corresponding path program 1 times [2024-11-18 10:44:11,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:44:11,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442666283] [2024-11-18 10:44:11,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:44:11,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:44:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:44:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1154 trivial. 0 not checked. [2024-11-18 10:44:12,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:44:12,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442666283] [2024-11-18 10:44:12,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442666283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:44:12,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:44:12,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:44:12,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729590861] [2024-11-18 10:44:12,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:44:12,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:44:12,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:44:12,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:44:12,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:44:12,327 INFO L87 Difference]: Start difference. First operand 18629 states and 19217 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2024-11-18 10:44:13,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:44:13,061 INFO L93 Difference]: Finished difference Result 30635 states and 31526 transitions. [2024-11-18 10:44:13,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:44:13,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 945 [2024-11-18 10:44:13,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:44:13,063 INFO L225 Difference]: With dead ends: 30635 [2024-11-18 10:44:13,063 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 10:44:13,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:44:13,073 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 273 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:44:13,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 85 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 10:44:13,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 10:44:13,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 10:44:13,074 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) [2024-11-18 10:44:13,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 10:44:13,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 945 [2024-11-18 10:44:13,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:44:13,074 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 10:44:13,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2024-11-18 10:44:13,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 10:44:13,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 10:44:13,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 10:44:13,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 10:44:13,079 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] [2024-11-18 10:44:13,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 10:44:14,490 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 10:44:14,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:44:14 BoogieIcfgContainer [2024-11-18 10:44:14,510 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 10:44:14,511 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 10:44:14,511 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 10:44:14,511 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 10:44:14,511 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:43:29" (3/4) ... [2024-11-18 10:44:14,515 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 10:44:14,543 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-18 10:44:14,545 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 10:44:14,546 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 10:44:14,548 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 10:44:14,731 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 10:44:14,731 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 10:44:14,731 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 10:44:14,732 INFO L158 Benchmark]: Toolchain (without parser) took 48506.01ms. Allocated memory was 197.1MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 120.8MB in the beginning and 963.3MB in the end (delta: -842.5MB). Peak memory consumption was 532.2MB. Max. memory is 16.1GB. [2024-11-18 10:44:14,732 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 10:44:14,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 804.68ms. Allocated memory is still 197.1MB. Free memory was 120.8MB in the beginning and 134.5MB in the end (delta: -13.7MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2024-11-18 10:44:14,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 156.41ms. Allocated memory is still 197.1MB. Free memory was 134.5MB in the beginning and 96.8MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-18 10:44:14,733 INFO L158 Benchmark]: Boogie Preprocessor took 207.31ms. Allocated memory is still 197.1MB. Free memory was 96.8MB in the beginning and 111.8MB in the end (delta: -15.0MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2024-11-18 10:44:14,733 INFO L158 Benchmark]: RCFGBuilder took 1960.93ms. Allocated memory was 197.1MB in the beginning and 364.9MB in the end (delta: 167.8MB). Free memory was 111.8MB in the beginning and 219.3MB in the end (delta: -107.4MB). Peak memory consumption was 146.3MB. Max. memory is 16.1GB. [2024-11-18 10:44:14,736 INFO L158 Benchmark]: TraceAbstraction took 45150.16ms. Allocated memory was 364.9MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 218.2MB in the beginning and 990.6MB in the end (delta: -772.4MB). Peak memory consumption was 860.3MB. Max. memory is 16.1GB. [2024-11-18 10:44:14,736 INFO L158 Benchmark]: Witness Printer took 220.72ms. Allocated memory is still 1.6GB. Free memory was 990.6MB in the beginning and 963.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-18 10:44:14,737 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 804.68ms. Allocated memory is still 197.1MB. Free memory was 120.8MB in the beginning and 134.5MB in the end (delta: -13.7MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 156.41ms. Allocated memory is still 197.1MB. Free memory was 134.5MB in the beginning and 96.8MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 207.31ms. Allocated memory is still 197.1MB. Free memory was 96.8MB in the beginning and 111.8MB in the end (delta: -15.0MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1960.93ms. Allocated memory was 197.1MB in the beginning and 364.9MB in the end (delta: 167.8MB). Free memory was 111.8MB in the beginning and 219.3MB in the end (delta: -107.4MB). Peak memory consumption was 146.3MB. Max. memory is 16.1GB. * TraceAbstraction took 45150.16ms. Allocated memory was 364.9MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 218.2MB in the beginning and 990.6MB in the end (delta: -772.4MB). Peak memory consumption was 860.3MB. Max. memory is 16.1GB. * Witness Printer took 220.72ms. Allocated memory is still 1.6GB. Free memory was 990.6MB in the beginning and 963.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. 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: 167]: 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, 424 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 43.7s, OverallIterations: 20, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 30.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7350 SdHoareTripleChecker+Valid, 27.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7350 mSDsluCounter, 8738 SdHoareTripleChecker+Invalid, 23.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1046 mSDsCounter, 3629 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26210 IncrementalHoareTripleChecker+Invalid, 29839 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3629 mSolverCounterUnsat, 7692 mSDtfsCounter, 26210 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2436 GetRequests, 2396 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18629occurred in iteration=19, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 16822 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 11241 NumberOfCodeBlocks, 11241 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 11831 ConstructedInterpolants, 0 QuantifiedInterpolants, 29588 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2190 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 24 InterpolantComputations, 19 PerfectInterpolantSequences, 13671/13866 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: 1776]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((long long) 89 + a4) <= 0) && (a29 <= 42)) && (3 == a2)) || (((((long long) 89 + a4) <= 0) && (a29 <= 42)) && (a2 == 4))) || (((2 == a2) && (0 <= ((long long) a4 + 85))) && (((long long) 98 + a0) <= 0))) || (((2 == a2) && (44 <= a29)) && (((long long) 98 + a0) <= 0))) || (((((long long) 89 + a4) <= 0) && (a2 == 1)) && (((long long) a0 + 61) <= 0))) || ((((long long) a0 + 99) <= 0) && (a2 == 4))) || ((((a2 == 1) && (((long long) a0 + 61) <= 0)) || ((0 <= ((long long) a4 + 85)) && (a2 == 1))) && (a29 <= 42))) || (((((long long) 89 + a4) <= 0) && (((long long) 98 + a0) <= 0)) && (5 <= a2))) || ((((long long) 98 + a0) <= 0) && (3 == a2))) || (((44 <= a29) && (((long long) 89 + a4) <= 0)) && (3 == a2))) || ((2 == a2) && (((long long) 89 + a4) <= 0))) || (((0 <= ((long long) a4 + 85)) && (((long long) 98 + a0) <= 0)) && (5 <= a2))) || (((44 <= a29) && (((long long) a0 + 99) <= 0)) && (5 <= a2))) || (((((long long) 89 + a4) <= 0) && (a2 == 4)) && (((long long) a0 + 61) <= 0))) || (((((long long) a0 + 578258) <= 0) && (44 <= a29)) && (((long long) 89 + a4) <= 0))) || ((a2 == 1) && (((long long) a29 + 144) <= 0))) || ((((0 <= ((long long) a4 + 85)) && (44 <= a29)) && (((long long) 98 + a0) <= 0)) && (a2 == 4))) || ((((((long long) 89 + a4) <= 0) && (a2 == 1)) && (0 <= ((long long) 44 + a0))) && (((long long) a29 + 127) == 0))) || (((((long long) 98 + a0) <= 0) && (0 <= ((long long) 146 + a0))) && (a2 == 1))) || (((((long long) 89 + a4) <= 0) && (3 == a2)) && (((long long) a0 + 61) <= 0))) || (((44 <= a29) && (((long long) a0 + 99) <= 0)) && (a2 == 1))) || ((((((long long) 89 + a4) <= 0) && (0 <= ((long long) a0 + 60))) && (a29 <= 42)) && (5 <= a2))) || (((((long long) 89 + a4) <= 0) && (5 <= a2)) && (a29 <= 36))) || ((((44 <= a29) && (((long long) 89 + a4) <= 0)) && (0 <= ((long long) a0 + 60))) && (5 <= a2))) RESULT: Ultimate proved your program to be correct! [2024-11-18 10:44:14,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE