./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label45.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem17_label45.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 bad588c9542390857efe8d001f4c41a270c4260c6e96db502f4ea1506acc7b02 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 22:34:06,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 22:34:06,327 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 22:34:06,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 22:34:06,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 22:34:06,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 22:34:06,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 22:34:06,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 22:34:06,376 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 22:34:06,377 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 22:34:06,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 22:34:06,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 22:34:06,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 22:34:06,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 22:34:06,378 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 22:34:06,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 22:34:06,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 22:34:06,379 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 22:34:06,379 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 22:34:06,379 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 22:34:06,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 22:34:06,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 22:34:06,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 22:34:06,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 22:34:06,383 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 22:34:06,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 22:34:06,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 22:34:06,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 22:34:06,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 22:34:06,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 22:34:06,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 22:34:06,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 22:34:06,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:34:06,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 22:34:06,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 22:34:06,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 22:34:06,385 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 22:34:06,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 22:34:06,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 22:34:06,385 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 22:34:06,385 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 22:34:06,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 22:34:06,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bad588c9542390857efe8d001f4c41a270c4260c6e96db502f4ea1506acc7b02 [2024-11-21 22:34:06,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 22:34:06,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 22:34:06,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 22:34:06,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 22:34:06,598 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 22:34:06,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label45.c [2024-11-21 22:34:07,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 22:34:08,085 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 22:34:08,086 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label45.c [2024-11-21 22:34:08,102 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adb57aa0f/9c4d22d2b40343619d636ec74cf093b1/FLAG0b34cc1aa [2024-11-21 22:34:08,116 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adb57aa0f/9c4d22d2b40343619d636ec74cf093b1 [2024-11-21 22:34:08,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 22:34:08,119 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 22:34:08,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 22:34:08,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 22:34:08,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 22:34:08,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:34:08" (1/1) ... [2024-11-21 22:34:08,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8106fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:08, skipping insertion in model container [2024-11-21 22:34:08,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:34:08" (1/1) ... [2024-11-21 22:34:08,179 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 22:34:08,361 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/Problem17_label45.c[7434,7447] [2024-11-21 22:34:08,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:34:08,792 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 22:34:08,814 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/Problem17_label45.c[7434,7447] [2024-11-21 22:34:08,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:34:09,000 INFO L204 MainTranslator]: Completed translation [2024-11-21 22:34:09,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09 WrapperNode [2024-11-21 22:34:09,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 22:34:09,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 22:34:09,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 22:34:09,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 22:34:09,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,050 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,265 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2024-11-21 22:34:09,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 22:34:09,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 22:34:09,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 22:34:09,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 22:34:09,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,302 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,444 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]. [2024-11-21 22:34:09,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,516 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 22:34:09,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 22:34:09,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 22:34:09,630 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 22:34:09,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (1/1) ... [2024-11-21 22:34:09,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:34:09,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:34:09,656 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) [2024-11-21 22:34:09,660 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 [2024-11-21 22:34:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 22:34:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 22:34:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 22:34:09,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 22:34:09,753 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 22:34:09,755 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 22:34:12,219 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-21 22:34:12,220 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 22:34:12,246 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 22:34:12,250 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-21 22:34:12,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:34:12 BoogieIcfgContainer [2024-11-21 22:34:12,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 22:34:12,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 22:34:12,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 22:34:12,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 22:34:12,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:34:08" (1/3) ... [2024-11-21 22:34:12,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ebe4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:34:12, skipping insertion in model container [2024-11-21 22:34:12,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:09" (2/3) ... [2024-11-21 22:34:12,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ebe4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:34:12, skipping insertion in model container [2024-11-21 22:34:12,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:34:12" (3/3) ... [2024-11-21 22:34:12,258 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label45.c [2024-11-21 22:34:12,271 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 22:34:12,272 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 22:34:12,335 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 22:34:12,340 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;@ce7aae9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 22:34:12,340 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 22:34:12,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 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) [2024-11-21 22:34:12,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-21 22:34:12,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:12,353 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] [2024-11-21 22:34:12,353 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:12,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:12,357 INFO L85 PathProgramCache]: Analyzing trace with hash 761214138, now seen corresponding path program 1 times [2024-11-21 22:34:12,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:12,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174832154] [2024-11-21 22:34:12,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:12,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:12,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:34:12,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:12,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174832154] [2024-11-21 22:34:12,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174832154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:12,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:12,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:34:12,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868296276] [2024-11-21 22:34:12,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:12,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:12,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:12,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:12,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:12,700 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 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) [2024-11-21 22:34:14,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:14,578 INFO L93 Difference]: Finished difference Result 1642 states and 3024 transitions. [2024-11-21 22:34:14,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:14,580 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 [2024-11-21 22:34:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:14,593 INFO L225 Difference]: With dead ends: 1642 [2024-11-21 22:34:14,593 INFO L226 Difference]: Without dead ends: 975 [2024-11-21 22:34:14,597 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 [2024-11-21 22:34:14,599 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 440 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:14,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 550 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-21 22:34:14,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-11-21 22:34:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 972. [2024-11-21 22:34:14,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 971 states have (on average 1.5077239958805355) internal successors, (1464), 971 states have internal predecessors, (1464), 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) [2024-11-21 22:34:14,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1464 transitions. [2024-11-21 22:34:14,668 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1464 transitions. Word has length 50 [2024-11-21 22:34:14,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:14,669 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1464 transitions. [2024-11-21 22:34:14,669 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) [2024-11-21 22:34:14,669 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1464 transitions. [2024-11-21 22:34:14,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-21 22:34:14,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:14,672 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] [2024-11-21 22:34:14,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 22:34:14,673 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:14,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:14,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1698886982, now seen corresponding path program 1 times [2024-11-21 22:34:14,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:14,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616011820] [2024-11-21 22:34:14,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:14,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:34:14,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:14,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616011820] [2024-11-21 22:34:14,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616011820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:14,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:14,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:14,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815826657] [2024-11-21 22:34:14,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:14,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:14,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:14,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:14,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:14,954 INFO L87 Difference]: Start difference. First operand 972 states and 1464 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 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) [2024-11-21 22:34:16,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:16,690 INFO L93 Difference]: Finished difference Result 2814 states and 4242 transitions. [2024-11-21 22:34:16,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:16,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 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 [2024-11-21 22:34:16,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:16,696 INFO L225 Difference]: With dead ends: 2814 [2024-11-21 22:34:16,696 INFO L226 Difference]: Without dead ends: 1844 [2024-11-21 22:34:16,698 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 [2024-11-21 22:34:16,699 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 441 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:16,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 921 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-21 22:34:16,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-11-21 22:34:16,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1842. [2024-11-21 22:34:16,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1841 states have (on average 1.3601303639326452) internal successors, (2504), 1841 states have internal predecessors, (2504), 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) [2024-11-21 22:34:16,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2504 transitions. [2024-11-21 22:34:16,736 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2504 transitions. Word has length 120 [2024-11-21 22:34:16,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:16,736 INFO L471 AbstractCegarLoop]: Abstraction has 1842 states and 2504 transitions. [2024-11-21 22:34:16,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 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) [2024-11-21 22:34:16,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2504 transitions. [2024-11-21 22:34:16,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-21 22:34:16,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:16,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:16,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 22:34:16,743 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:16,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:16,744 INFO L85 PathProgramCache]: Analyzing trace with hash -859485079, now seen corresponding path program 1 times [2024-11-21 22:34:16,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:16,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790377410] [2024-11-21 22:34:16,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:16,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:34:16,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:16,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790377410] [2024-11-21 22:34:16,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790377410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:16,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:16,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:34:16,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568485195] [2024-11-21 22:34:16,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:16,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:16,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:16,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:16,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:16,852 INFO L87 Difference]: Start difference. First operand 1842 states and 2504 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:18,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:18,393 INFO L93 Difference]: Finished difference Result 5395 states and 7326 transitions. [2024-11-21 22:34:18,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:18,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-11-21 22:34:18,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:18,401 INFO L225 Difference]: With dead ends: 5395 [2024-11-21 22:34:18,401 INFO L226 Difference]: Without dead ends: 2701 [2024-11-21 22:34:18,404 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 [2024-11-21 22:34:18,404 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 368 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:18,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-21 22:34:18,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2024-11-21 22:34:18,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2701. [2024-11-21 22:34:18,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 1.191851851851852) internal successors, (3218), 2700 states have internal predecessors, (3218), 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) [2024-11-21 22:34:18,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3218 transitions. [2024-11-21 22:34:18,435 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3218 transitions. Word has length 142 [2024-11-21 22:34:18,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:18,436 INFO L471 AbstractCegarLoop]: Abstraction has 2701 states and 3218 transitions. [2024-11-21 22:34:18,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:18,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3218 transitions. [2024-11-21 22:34:18,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-21 22:34:18,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:18,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:18,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 22:34:18,440 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:18,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:18,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1759632867, now seen corresponding path program 1 times [2024-11-21 22:34:18,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:18,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663526511] [2024-11-21 22:34:18,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:18,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:18,593 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:34:18,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:18,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663526511] [2024-11-21 22:34:18,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663526511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:18,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:18,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:18,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724786557] [2024-11-21 22:34:18,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:18,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:18,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:18,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:18,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:18,596 INFO L87 Difference]: Start difference. First operand 2701 states and 3218 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2024-11-21 22:34:19,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:19,851 INFO L93 Difference]: Finished difference Result 7108 states and 8598 transitions. [2024-11-21 22:34:19,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:19,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 202 [2024-11-21 22:34:19,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:19,863 INFO L225 Difference]: With dead ends: 7108 [2024-11-21 22:34:19,863 INFO L226 Difference]: Without dead ends: 4409 [2024-11-21 22:34:19,868 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 [2024-11-21 22:34:19,868 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 496 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:19,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 784 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-21 22:34:19,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4409 states. [2024-11-21 22:34:19,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4409 to 4409. [2024-11-21 22:34:19,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4409 states, 4408 states have (on average 1.1705989110707804) internal successors, (5160), 4408 states have internal predecessors, (5160), 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) [2024-11-21 22:34:19,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 5160 transitions. [2024-11-21 22:34:19,916 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 5160 transitions. Word has length 202 [2024-11-21 22:34:19,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:19,917 INFO L471 AbstractCegarLoop]: Abstraction has 4409 states and 5160 transitions. [2024-11-21 22:34:19,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2024-11-21 22:34:19,917 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 5160 transitions. [2024-11-21 22:34:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-21 22:34:19,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:19,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:19,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-21 22:34:19,919 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:19,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:19,920 INFO L85 PathProgramCache]: Analyzing trace with hash -686975016, now seen corresponding path program 1 times [2024-11-21 22:34:19,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:19,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361664160] [2024-11-21 22:34:19,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:19,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:20,035 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-21 22:34:20,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:20,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361664160] [2024-11-21 22:34:20,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361664160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:20,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:20,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:20,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070507749] [2024-11-21 22:34:20,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:20,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:20,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:20,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:20,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:20,038 INFO L87 Difference]: Start difference. First operand 4409 states and 5160 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2024-11-21 22:34:21,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:21,394 INFO L93 Difference]: Finished difference Result 10936 states and 12970 transitions. [2024-11-21 22:34:21,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:21,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 204 [2024-11-21 22:34:21,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:21,408 INFO L225 Difference]: With dead ends: 10936 [2024-11-21 22:34:21,408 INFO L226 Difference]: Without dead ends: 6528 [2024-11-21 22:34:21,411 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 [2024-11-21 22:34:21,413 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 401 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:21,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 444 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-21 22:34:21,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6528 states. [2024-11-21 22:34:21,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6528 to 4382. [2024-11-21 22:34:21,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 4381 states have (on average 1.1684546907098836) internal successors, (5119), 4381 states have internal predecessors, (5119), 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) [2024-11-21 22:34:21,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 5119 transitions. [2024-11-21 22:34:21,469 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 5119 transitions. Word has length 204 [2024-11-21 22:34:21,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:21,469 INFO L471 AbstractCegarLoop]: Abstraction has 4382 states and 5119 transitions. [2024-11-21 22:34:21,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2024-11-21 22:34:21,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 5119 transitions. [2024-11-21 22:34:21,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-21 22:34:21,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:21,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:21,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-21 22:34:21,473 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:21,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:21,474 INFO L85 PathProgramCache]: Analyzing trace with hash -959867106, now seen corresponding path program 1 times [2024-11-21 22:34:21,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:21,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229137282] [2024-11-21 22:34:21,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:21,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-21 22:34:21,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:21,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229137282] [2024-11-21 22:34:21,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229137282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:21,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:21,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:21,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279558466] [2024-11-21 22:34:21,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:21,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:21,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:21,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:21,699 INFO L87 Difference]: Start difference. First operand 4382 states and 5119 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-11-21 22:34:22,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:22,998 INFO L93 Difference]: Finished difference Result 10045 states and 11706 transitions. [2024-11-21 22:34:22,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:22,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 270 [2024-11-21 22:34:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:23,010 INFO L225 Difference]: With dead ends: 10045 [2024-11-21 22:34:23,011 INFO L226 Difference]: Without dead ends: 5665 [2024-11-21 22:34:23,014 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 [2024-11-21 22:34:23,015 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 386 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:23,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 894 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-21 22:34:23,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5665 states. [2024-11-21 22:34:23,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5665 to 5234. [2024-11-21 22:34:23,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5234 states, 5233 states have (on average 1.1587999235620103) internal successors, (6064), 5233 states have internal predecessors, (6064), 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) [2024-11-21 22:34:23,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 6064 transitions. [2024-11-21 22:34:23,090 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 6064 transitions. Word has length 270 [2024-11-21 22:34:23,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:23,090 INFO L471 AbstractCegarLoop]: Abstraction has 5234 states and 6064 transitions. [2024-11-21 22:34:23,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-11-21 22:34:23,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 6064 transitions. [2024-11-21 22:34:23,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-21 22:34:23,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:23,093 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:23,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-21 22:34:23,093 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:23,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:23,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1561562149, now seen corresponding path program 1 times [2024-11-21 22:34:23,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:23,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852599123] [2024-11-21 22:34:23,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:23,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:23,268 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-21 22:34:23,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:23,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852599123] [2024-11-21 22:34:23,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852599123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:23,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:23,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:23,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330420884] [2024-11-21 22:34:23,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:23,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:23,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:23,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:23,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:23,270 INFO L87 Difference]: Start difference. First operand 5234 states and 6064 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:24,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:24,618 INFO L93 Difference]: Finished difference Result 12593 states and 14783 transitions. [2024-11-21 22:34:24,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:24,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2024-11-21 22:34:24,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:24,632 INFO L225 Difference]: With dead ends: 12593 [2024-11-21 22:34:24,632 INFO L226 Difference]: Without dead ends: 6936 [2024-11-21 22:34:24,640 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 [2024-11-21 22:34:24,641 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 383 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:24,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 847 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-21 22:34:24,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6936 states. [2024-11-21 22:34:24,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6936 to 6936. [2024-11-21 22:34:24,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6936 states, 6935 states have (on average 1.1322278298485942) internal successors, (7852), 6935 states have internal predecessors, (7852), 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) [2024-11-21 22:34:24,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6936 states to 6936 states and 7852 transitions. [2024-11-21 22:34:24,708 INFO L78 Accepts]: Start accepts. Automaton has 6936 states and 7852 transitions. Word has length 282 [2024-11-21 22:34:24,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:24,709 INFO L471 AbstractCegarLoop]: Abstraction has 6936 states and 7852 transitions. [2024-11-21 22:34:24,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:24,709 INFO L276 IsEmpty]: Start isEmpty. Operand 6936 states and 7852 transitions. [2024-11-21 22:34:24,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-21 22:34:24,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:24,712 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, 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] [2024-11-21 22:34:24,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-21 22:34:24,712 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:24,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:24,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1048618558, now seen corresponding path program 1 times [2024-11-21 22:34:24,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:24,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964390573] [2024-11-21 22:34:24,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:24,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-21 22:34:24,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:24,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964390573] [2024-11-21 22:34:24,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964390573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:24,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:24,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:24,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979539069] [2024-11-21 22:34:24,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:24,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:24,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:24,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:24,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:24,915 INFO L87 Difference]: Start difference. First operand 6936 states and 7852 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2024-11-21 22:34:26,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:26,292 INFO L93 Difference]: Finished difference Result 17279 states and 19683 transitions. [2024-11-21 22:34:26,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:26,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 [2024-11-21 22:34:26,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:26,308 INFO L225 Difference]: With dead ends: 17279 [2024-11-21 22:34:26,308 INFO L226 Difference]: Without dead ends: 9468 [2024-11-21 22:34:26,316 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 [2024-11-21 22:34:26,317 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 495 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:26,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 640 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-21 22:34:26,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9468 states. [2024-11-21 22:34:26,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9468 to 9038. [2024-11-21 22:34:26,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9038 states, 9037 states have (on average 1.1249308398804914) internal successors, (10166), 9037 states have internal predecessors, (10166), 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) [2024-11-21 22:34:26,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9038 states to 9038 states and 10166 transitions. [2024-11-21 22:34:26,412 INFO L78 Accepts]: Start accepts. Automaton has 9038 states and 10166 transitions. Word has length 322 [2024-11-21 22:34:26,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:26,412 INFO L471 AbstractCegarLoop]: Abstraction has 9038 states and 10166 transitions. [2024-11-21 22:34:26,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2024-11-21 22:34:26,413 INFO L276 IsEmpty]: Start isEmpty. Operand 9038 states and 10166 transitions. [2024-11-21 22:34:26,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-21 22:34:26,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:26,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:26,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 22:34:26,418 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:26,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:26,419 INFO L85 PathProgramCache]: Analyzing trace with hash -474723312, now seen corresponding path program 1 times [2024-11-21 22:34:26,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:26,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616257538] [2024-11-21 22:34:26,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:26,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:26,677 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:34:26,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:26,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616257538] [2024-11-21 22:34:26,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616257538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:26,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:26,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:26,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495291275] [2024-11-21 22:34:26,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:26,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:34:26,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:26,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:34:26,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:34:26,680 INFO L87 Difference]: Start difference. First operand 9038 states and 10166 transitions. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 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) [2024-11-21 22:34:28,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:28,535 INFO L93 Difference]: Finished difference Result 26188 states and 29347 transitions. [2024-11-21 22:34:28,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:34:28,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 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 389 [2024-11-21 22:34:28,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:28,558 INFO L225 Difference]: With dead ends: 26188 [2024-11-21 22:34:28,559 INFO L226 Difference]: Without dead ends: 16727 [2024-11-21 22:34:28,568 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 [2024-11-21 22:34:28,570 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 519 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 2684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:28,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 371 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 2684 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-21 22:34:28,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16727 states. [2024-11-21 22:34:28,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16727 to 16283. [2024-11-21 22:34:28,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16283 states, 16282 states have (on average 1.110920034393809) internal successors, (18088), 16282 states have internal predecessors, (18088), 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) [2024-11-21 22:34:28,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16283 states to 16283 states and 18088 transitions. [2024-11-21 22:34:28,785 INFO L78 Accepts]: Start accepts. Automaton has 16283 states and 18088 transitions. Word has length 389 [2024-11-21 22:34:28,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:28,786 INFO L471 AbstractCegarLoop]: Abstraction has 16283 states and 18088 transitions. [2024-11-21 22:34:28,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 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) [2024-11-21 22:34:28,786 INFO L276 IsEmpty]: Start isEmpty. Operand 16283 states and 18088 transitions. [2024-11-21 22:34:28,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-21 22:34:28,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:28,792 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, 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] [2024-11-21 22:34:28,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-21 22:34:28,792 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:28,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:28,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2212298, now seen corresponding path program 1 times [2024-11-21 22:34:28,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:28,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698970307] [2024-11-21 22:34:28,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:28,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-21 22:34:29,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:29,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698970307] [2024-11-21 22:34:29,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698970307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:29,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:29,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:29,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832447672] [2024-11-21 22:34:29,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:29,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:29,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:29,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:29,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:29,029 INFO L87 Difference]: Start difference. First operand 16283 states and 18088 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2024-11-21 22:34:30,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:30,296 INFO L93 Difference]: Finished difference Result 38973 states and 43494 transitions. [2024-11-21 22:34:30,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:30,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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 393 [2024-11-21 22:34:30,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:30,320 INFO L225 Difference]: With dead ends: 38973 [2024-11-21 22:34:30,320 INFO L226 Difference]: Without dead ends: 22692 [2024-11-21 22:34:30,328 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 [2024-11-21 22:34:30,329 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 349 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:30,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 654 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-21 22:34:30,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22692 states. [2024-11-21 22:34:30,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22692 to 21823. [2024-11-21 22:34:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21823 states, 21822 states have (on average 1.119420768032261) internal successors, (24428), 21822 states have internal predecessors, (24428), 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) [2024-11-21 22:34:30,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21823 states to 21823 states and 24428 transitions. [2024-11-21 22:34:30,511 INFO L78 Accepts]: Start accepts. Automaton has 21823 states and 24428 transitions. Word has length 393 [2024-11-21 22:34:30,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:30,512 INFO L471 AbstractCegarLoop]: Abstraction has 21823 states and 24428 transitions. [2024-11-21 22:34:30,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2024-11-21 22:34:30,512 INFO L276 IsEmpty]: Start isEmpty. Operand 21823 states and 24428 transitions. [2024-11-21 22:34:30,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-11-21 22:34:30,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:30,521 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:34:30,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-21 22:34:30,522 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:30,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:30,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1334255484, now seen corresponding path program 1 times [2024-11-21 22:34:30,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:30,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147115754] [2024-11-21 22:34:30,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:30,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:30,994 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-21 22:34:30,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:30,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147115754] [2024-11-21 22:34:30,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147115754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:30,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:30,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:30,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345397559] [2024-11-21 22:34:30,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:30,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:30,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:30,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:30,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:30,997 INFO L87 Difference]: Start difference. First operand 21823 states and 24428 transitions. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:32,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:32,197 INFO L93 Difference]: Finished difference Result 49189 states and 55550 transitions. [2024-11-21 22:34:32,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:32,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 436 [2024-11-21 22:34:32,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:32,232 INFO L225 Difference]: With dead ends: 49189 [2024-11-21 22:34:32,232 INFO L226 Difference]: Without dead ends: 26943 [2024-11-21 22:34:32,252 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 [2024-11-21 22:34:32,253 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 313 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:32,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 761 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-21 22:34:32,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26943 states. [2024-11-21 22:34:32,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26943 to 26936. [2024-11-21 22:34:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26936 states, 26935 states have (on average 1.1173937256357898) internal successors, (30097), 26935 states have internal predecessors, (30097), 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) [2024-11-21 22:34:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26936 states to 26936 states and 30097 transitions. [2024-11-21 22:34:32,491 INFO L78 Accepts]: Start accepts. Automaton has 26936 states and 30097 transitions. Word has length 436 [2024-11-21 22:34:32,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:32,491 INFO L471 AbstractCegarLoop]: Abstraction has 26936 states and 30097 transitions. [2024-11-21 22:34:32,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 26936 states and 30097 transitions. [2024-11-21 22:34:32,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-21 22:34:32,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:32,579 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:34:32,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-21 22:34:32,579 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:32,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:32,579 INFO L85 PathProgramCache]: Analyzing trace with hash -344888426, now seen corresponding path program 1 times [2024-11-21 22:34:32,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:32,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825852133] [2024-11-21 22:34:32,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:32,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:32,742 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-21 22:34:32,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:32,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825852133] [2024-11-21 22:34:32,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825852133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:32,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:32,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:32,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119950173] [2024-11-21 22:34:32,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:32,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:32,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:32,744 INFO L87 Difference]: Start difference. First operand 26936 states and 30097 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2024-11-21 22:34:33,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:33,923 INFO L93 Difference]: Finished difference Result 64094 states and 71471 transitions. [2024-11-21 22:34:33,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:33,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 449 [2024-11-21 22:34:33,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:33,959 INFO L225 Difference]: With dead ends: 64094 [2024-11-21 22:34:33,959 INFO L226 Difference]: Without dead ends: 37160 [2024-11-21 22:34:33,978 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 [2024-11-21 22:34:33,979 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 352 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:33,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 153 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-21 22:34:34,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37160 states. [2024-11-21 22:34:34,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37160 to 29046. [2024-11-21 22:34:34,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29046 states, 29045 states have (on average 1.115751420210019) internal successors, (32407), 29045 states have internal predecessors, (32407), 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) [2024-11-21 22:34:34,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29046 states to 29046 states and 32407 transitions. [2024-11-21 22:34:34,309 INFO L78 Accepts]: Start accepts. Automaton has 29046 states and 32407 transitions. Word has length 449 [2024-11-21 22:34:34,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:34,309 INFO L471 AbstractCegarLoop]: Abstraction has 29046 states and 32407 transitions. [2024-11-21 22:34:34,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2024-11-21 22:34:34,310 INFO L276 IsEmpty]: Start isEmpty. Operand 29046 states and 32407 transitions. [2024-11-21 22:34:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-21 22:34:34,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:34,321 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:34,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-21 22:34:34,322 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:34,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:34,322 INFO L85 PathProgramCache]: Analyzing trace with hash 2118200343, now seen corresponding path program 1 times [2024-11-21 22:34:34,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:34,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281791212] [2024-11-21 22:34:34,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:34,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:34,658 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-21 22:34:34,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:34,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281791212] [2024-11-21 22:34:34,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281791212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:34,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:34,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:34,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858838836] [2024-11-21 22:34:34,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:34,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:34,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:34,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:34,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:34,660 INFO L87 Difference]: Start difference. First operand 29046 states and 32407 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-21 22:34:35,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:35,912 INFO L93 Difference]: Finished difference Result 67034 states and 74966 transitions. [2024-11-21 22:34:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:35,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 513 [2024-11-21 22:34:35,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:35,948 INFO L225 Difference]: With dead ends: 67034 [2024-11-21 22:34:35,948 INFO L226 Difference]: Without dead ends: 37990 [2024-11-21 22:34:35,967 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 [2024-11-21 22:34:35,967 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 326 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:35,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 344 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-21 22:34:35,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37990 states. [2024-11-21 22:34:36,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37990 to 33301. [2024-11-21 22:34:36,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33301 states, 33300 states have (on average 1.10012012012012) internal successors, (36634), 33300 states have internal predecessors, (36634), 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) [2024-11-21 22:34:36,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33301 states to 33301 states and 36634 transitions. [2024-11-21 22:34:36,254 INFO L78 Accepts]: Start accepts. Automaton has 33301 states and 36634 transitions. Word has length 513 [2024-11-21 22:34:36,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:36,255 INFO L471 AbstractCegarLoop]: Abstraction has 33301 states and 36634 transitions. [2024-11-21 22:34:36,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-21 22:34:36,255 INFO L276 IsEmpty]: Start isEmpty. Operand 33301 states and 36634 transitions. [2024-11-21 22:34:36,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2024-11-21 22:34:36,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:36,267 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:36,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-21 22:34:36,267 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:36,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:36,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1612744574, now seen corresponding path program 1 times [2024-11-21 22:34:36,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:36,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495733984] [2024-11-21 22:34:36,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:36,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:36,733 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 610 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-21 22:34:36,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:36,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495733984] [2024-11-21 22:34:36,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495733984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:36,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:36,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:36,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70325592] [2024-11-21 22:34:36,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:36,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:36,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:36,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:36,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:36,736 INFO L87 Difference]: Start difference. First operand 33301 states and 36634 transitions. Second operand has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 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) [2024-11-21 22:34:38,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:38,068 INFO L93 Difference]: Finished difference Result 75546 states and 83066 transitions. [2024-11-21 22:34:38,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:38,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 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 567 [2024-11-21 22:34:38,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:38,109 INFO L225 Difference]: With dead ends: 75546 [2024-11-21 22:34:38,109 INFO L226 Difference]: Without dead ends: 42247 [2024-11-21 22:34:38,130 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 [2024-11-21 22:34:38,130 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 246 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:38,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 783 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-21 22:34:38,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42247 states. [2024-11-21 22:34:38,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42247 to 40536. [2024-11-21 22:34:38,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40536 states, 40535 states have (on average 1.0932527445417541) internal successors, (44315), 40535 states have internal predecessors, (44315), 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) [2024-11-21 22:34:38,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40536 states to 40536 states and 44315 transitions. [2024-11-21 22:34:38,570 INFO L78 Accepts]: Start accepts. Automaton has 40536 states and 44315 transitions. Word has length 567 [2024-11-21 22:34:38,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:38,571 INFO L471 AbstractCegarLoop]: Abstraction has 40536 states and 44315 transitions. [2024-11-21 22:34:38,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 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) [2024-11-21 22:34:38,571 INFO L276 IsEmpty]: Start isEmpty. Operand 40536 states and 44315 transitions. [2024-11-21 22:34:38,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-11-21 22:34:38,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:38,585 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:38,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-21 22:34:38,586 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:38,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:38,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1259748942, now seen corresponding path program 1 times [2024-11-21 22:34:38,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:38,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152074246] [2024-11-21 22:34:38,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:38,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:38,877 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-21 22:34:38,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:38,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152074246] [2024-11-21 22:34:38,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152074246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:38,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:38,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:38,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102962756] [2024-11-21 22:34:38,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:38,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:38,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:38,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:38,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:38,879 INFO L87 Difference]: Start difference. First operand 40536 states and 44315 transitions. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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) [2024-11-21 22:34:40,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:40,208 INFO L93 Difference]: Finished difference Result 92571 states and 101579 transitions. [2024-11-21 22:34:40,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:40,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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 598 [2024-11-21 22:34:40,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:40,258 INFO L225 Difference]: With dead ends: 92571 [2024-11-21 22:34:40,258 INFO L226 Difference]: Without dead ends: 51186 [2024-11-21 22:34:40,269 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 [2024-11-21 22:34:40,270 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 312 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:40,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 617 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-21 22:34:40,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51186 states. [2024-11-21 22:34:40,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51186 to 51175. [2024-11-21 22:34:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51175 states, 51174 states have (on average 1.0936999257435416) internal successors, (55969), 51174 states have internal predecessors, (55969), 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) [2024-11-21 22:34:40,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51175 states to 51175 states and 55969 transitions. [2024-11-21 22:34:40,664 INFO L78 Accepts]: Start accepts. Automaton has 51175 states and 55969 transitions. Word has length 598 [2024-11-21 22:34:40,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:40,664 INFO L471 AbstractCegarLoop]: Abstraction has 51175 states and 55969 transitions. [2024-11-21 22:34:40,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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) [2024-11-21 22:34:40,664 INFO L276 IsEmpty]: Start isEmpty. Operand 51175 states and 55969 transitions. [2024-11-21 22:34:40,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2024-11-21 22:34:40,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:40,683 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, 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, 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] [2024-11-21 22:34:40,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-21 22:34:40,683 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:40,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:40,684 INFO L85 PathProgramCache]: Analyzing trace with hash 378655293, now seen corresponding path program 1 times [2024-11-21 22:34:40,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:40,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183503176] [2024-11-21 22:34:40,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:40,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 518 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-11-21 22:34:40,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:40,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183503176] [2024-11-21 22:34:40,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183503176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:40,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:40,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:40,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071345862] [2024-11-21 22:34:40,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:40,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:40,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:40,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:40,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:40,877 INFO L87 Difference]: Start difference. First operand 51175 states and 55969 transitions. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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) [2024-11-21 22:34:42,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:42,194 INFO L93 Difference]: Finished difference Result 106181 states and 116205 transitions. [2024-11-21 22:34:42,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:42,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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 665 [2024-11-21 22:34:42,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:42,255 INFO L225 Difference]: With dead ends: 106181 [2024-11-21 22:34:42,256 INFO L226 Difference]: Without dead ends: 55008 [2024-11-21 22:34:42,290 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 [2024-11-21 22:34:42,290 INFO L432 NwaCegarLoop]: 646 mSDtfsCounter, 486 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:42,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 688 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-21 22:34:42,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55008 states. [2024-11-21 22:34:42,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55008 to 54999. [2024-11-21 22:34:42,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54999 states, 54998 states have (on average 1.0856394777991927) internal successors, (59708), 54998 states have internal predecessors, (59708), 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) [2024-11-21 22:34:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54999 states to 54999 states and 59708 transitions. [2024-11-21 22:34:42,983 INFO L78 Accepts]: Start accepts. Automaton has 54999 states and 59708 transitions. Word has length 665 [2024-11-21 22:34:42,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:42,983 INFO L471 AbstractCegarLoop]: Abstraction has 54999 states and 59708 transitions. [2024-11-21 22:34:42,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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) [2024-11-21 22:34:42,984 INFO L276 IsEmpty]: Start isEmpty. Operand 54999 states and 59708 transitions. [2024-11-21 22:34:43,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2024-11-21 22:34:43,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:43,009 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, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:43,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-21 22:34:43,009 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:43,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:43,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1764057692, now seen corresponding path program 1 times [2024-11-21 22:34:43,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:43,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787278408] [2024-11-21 22:34:43,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:43,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 914 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-21 22:34:43,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:43,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787278408] [2024-11-21 22:34:43,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787278408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:43,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:43,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 22:34:43,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012975569] [2024-11-21 22:34:43,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:43,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:34:43,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:43,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:34:43,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:34:43,743 INFO L87 Difference]: Start difference. First operand 54999 states and 59708 transitions. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2024-11-21 22:34:45,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:45,761 INFO L93 Difference]: Finished difference Result 127464 states and 138322 transitions. [2024-11-21 22:34:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:34:45,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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 677 [2024-11-21 22:34:45,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:45,829 INFO L225 Difference]: With dead ends: 127464 [2024-11-21 22:34:45,829 INFO L226 Difference]: Without dead ends: 72467 [2024-11-21 22:34:45,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:34:45,841 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 814 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:45,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 180 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-21 22:34:45,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72467 states. [2024-11-21 22:34:46,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72467 to 70328. [2024-11-21 22:34:46,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70328 states, 70327 states have (on average 1.0841213189813301) internal successors, (76243), 70327 states have internal predecessors, (76243), 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) [2024-11-21 22:34:46,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70328 states to 70328 states and 76243 transitions. [2024-11-21 22:34:46,609 INFO L78 Accepts]: Start accepts. Automaton has 70328 states and 76243 transitions. Word has length 677 [2024-11-21 22:34:46,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:46,609 INFO L471 AbstractCegarLoop]: Abstraction has 70328 states and 76243 transitions. [2024-11-21 22:34:46,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2024-11-21 22:34:46,609 INFO L276 IsEmpty]: Start isEmpty. Operand 70328 states and 76243 transitions. [2024-11-21 22:34:46,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-21 22:34:46,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:46,642 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, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 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] [2024-11-21 22:34:46,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-21 22:34:46,642 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:46,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:46,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1637063526, now seen corresponding path program 1 times [2024-11-21 22:34:46,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:46,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921509176] [2024-11-21 22:34:46,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:46,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 893 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-21 22:34:47,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:47,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921509176] [2024-11-21 22:34:47,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921509176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:47,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:47,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:47,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925188406] [2024-11-21 22:34:47,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:47,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:47,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:47,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:47,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:47,200 INFO L87 Difference]: Start difference. First operand 70328 states and 76243 transitions. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2024-11-21 22:34:48,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:48,616 INFO L93 Difference]: Finished difference Result 152577 states and 165681 transitions. [2024-11-21 22:34:48,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:48,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 696 [2024-11-21 22:34:48,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:48,695 INFO L225 Difference]: With dead ends: 152577 [2024-11-21 22:34:48,695 INFO L226 Difference]: Without dead ends: 82251 [2024-11-21 22:34:48,736 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 [2024-11-21 22:34:48,737 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 383 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:48,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 298 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-21 22:34:48,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82251 states. [2024-11-21 22:34:49,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82251 to 80540. [2024-11-21 22:34:49,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80540 states, 80539 states have (on average 1.079626019692323) internal successors, (86952), 80539 states have internal predecessors, (86952), 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) [2024-11-21 22:34:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80540 states to 80540 states and 86952 transitions. [2024-11-21 22:34:49,790 INFO L78 Accepts]: Start accepts. Automaton has 80540 states and 86952 transitions. Word has length 696 [2024-11-21 22:34:49,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:49,790 INFO L471 AbstractCegarLoop]: Abstraction has 80540 states and 86952 transitions. [2024-11-21 22:34:49,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2024-11-21 22:34:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand 80540 states and 86952 transitions. [2024-11-21 22:34:49,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2024-11-21 22:34:49,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:49,831 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:49,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-21 22:34:49,832 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:49,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:49,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1592193129, now seen corresponding path program 1 times [2024-11-21 22:34:49,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:49,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308733824] [2024-11-21 22:34:49,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:49,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:50,379 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-21 22:34:50,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:50,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308733824] [2024-11-21 22:34:50,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308733824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:50,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:50,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:50,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881030141] [2024-11-21 22:34:50,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:50,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:50,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:50,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:50,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:50,381 INFO L87 Difference]: Start difference. First operand 80540 states and 86952 transitions. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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) [2024-11-21 22:34:51,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:51,694 INFO L93 Difference]: Finished difference Result 159794 states and 172448 transitions. [2024-11-21 22:34:51,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:51,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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 749 [2024-11-21 22:34:51,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:51,771 INFO L225 Difference]: With dead ends: 159794 [2024-11-21 22:34:51,771 INFO L226 Difference]: Without dead ends: 79254 [2024-11-21 22:34:51,815 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 [2024-11-21 22:34:51,815 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 335 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:51,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 683 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-21 22:34:51,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79254 states. [2024-11-21 22:34:52,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79254 to 77977. [2024-11-21 22:34:52,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77977 states, 77976 states have (on average 1.0655586334256695) internal successors, (83088), 77976 states have internal predecessors, (83088), 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) [2024-11-21 22:34:52,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77977 states to 77977 states and 83088 transitions. [2024-11-21 22:34:52,815 INFO L78 Accepts]: Start accepts. Automaton has 77977 states and 83088 transitions. Word has length 749 [2024-11-21 22:34:52,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:52,815 INFO L471 AbstractCegarLoop]: Abstraction has 77977 states and 83088 transitions. [2024-11-21 22:34:52,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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) [2024-11-21 22:34:52,816 INFO L276 IsEmpty]: Start isEmpty. Operand 77977 states and 83088 transitions. [2024-11-21 22:34:52,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2024-11-21 22:34:52,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:52,855 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, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:52,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-21 22:34:52,855 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:52,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:52,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1256177813, now seen corresponding path program 1 times [2024-11-21 22:34:52,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:52,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118414891] [2024-11-21 22:34:52,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:52,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:53,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 757 proven. 82 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-11-21 22:34:53,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:53,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118414891] [2024-11-21 22:34:53,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118414891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:34:53,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317817248] [2024-11-21 22:34:53,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:53,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:34:53,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:34:53,573 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) [2024-11-21 22:34:53,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-21 22:34:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:53,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 22:34:53,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:34:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 885 proven. 160 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-21 22:34:54,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 22:34:54,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 1045 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-21 22:34:54,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317817248] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-21 22:34:54,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-21 22:34:54,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 4] total 7 [2024-11-21 22:34:54,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975564963] [2024-11-21 22:34:54,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:54,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 22:34:54,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:54,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 22:34:54,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-21 22:34:54,552 INFO L87 Difference]: Start difference. First operand 77977 states and 83088 transitions. Second operand has 5 states, 5 states have (on average 111.4) internal successors, (557), 4 states have internal predecessors, (557), 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) [2024-11-21 22:34:57,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:57,261 INFO L93 Difference]: Finished difference Result 187928 states and 200826 transitions. [2024-11-21 22:34:57,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 22:34:57,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 111.4) internal successors, (557), 4 states have internal predecessors, (557), 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 758 [2024-11-21 22:34:57,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:57,377 INFO L225 Difference]: With dead ends: 187928 [2024-11-21 22:34:57,377 INFO L226 Difference]: Without dead ends: 109528 [2024-11-21 22:34:57,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1517 GetRequests, 1511 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-21 22:34:57,425 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 1126 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:57,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 193 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 3098 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-21 22:34:57,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109528 states. [2024-11-21 22:34:58,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109528 to 102719. [2024-11-21 22:34:58,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102719 states, 102718 states have (on average 1.0665121984462314) internal successors, (109550), 102718 states have internal predecessors, (109550), 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) [2024-11-21 22:34:58,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102719 states to 102719 states and 109550 transitions. [2024-11-21 22:34:58,790 INFO L78 Accepts]: Start accepts. Automaton has 102719 states and 109550 transitions. Word has length 758 [2024-11-21 22:34:58,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:58,790 INFO L471 AbstractCegarLoop]: Abstraction has 102719 states and 109550 transitions. [2024-11-21 22:34:58,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.4) internal successors, (557), 4 states have internal predecessors, (557), 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) [2024-11-21 22:34:58,791 INFO L276 IsEmpty]: Start isEmpty. Operand 102719 states and 109550 transitions. [2024-11-21 22:34:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2024-11-21 22:34:58,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:58,834 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, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:58,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-21 22:34:59,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:34:59,036 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:59,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:59,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1804847060, now seen corresponding path program 1 times [2024-11-21 22:34:59,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:59,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761369697] [2024-11-21 22:34:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:59,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:59,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1441 backedges. 1088 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2024-11-21 22:34:59,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:59,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761369697] [2024-11-21 22:34:59,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761369697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:59,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:59,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:59,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289074082] [2024-11-21 22:34:59,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:59,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:59,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:59,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:59,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:59,755 INFO L87 Difference]: Start difference. First operand 102719 states and 109550 transitions. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2024-11-21 22:35:01,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:35:01,391 INFO L93 Difference]: Finished difference Result 218683 states and 233273 transitions. [2024-11-21 22:35:01,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:35:01,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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 784 [2024-11-21 22:35:01,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:35:01,520 INFO L225 Difference]: With dead ends: 218683 [2024-11-21 22:35:01,520 INFO L226 Difference]: Without dead ends: 115966 [2024-11-21 22:35:01,576 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 [2024-11-21 22:35:01,577 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 270 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:35:01,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 253 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-21 22:35:01,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115966 states. [2024-11-21 22:35:02,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115966 to 106985. [2024-11-21 22:35:02,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106985 states, 106984 states have (on average 1.0664678830479324) internal successors, (114095), 106984 states have internal predecessors, (114095), 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) [2024-11-21 22:35:03,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106985 states to 106985 states and 114095 transitions. [2024-11-21 22:35:03,042 INFO L78 Accepts]: Start accepts. Automaton has 106985 states and 114095 transitions. Word has length 784 [2024-11-21 22:35:03,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:35:03,043 INFO L471 AbstractCegarLoop]: Abstraction has 106985 states and 114095 transitions. [2024-11-21 22:35:03,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2024-11-21 22:35:03,043 INFO L276 IsEmpty]: Start isEmpty. Operand 106985 states and 114095 transitions. [2024-11-21 22:35:03,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2024-11-21 22:35:03,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:35:03,090 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-21 22:35:03,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-21 22:35:03,090 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:35:03,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:35:03,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1725455319, now seen corresponding path program 1 times [2024-11-21 22:35:03,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:35:03,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953098439] [2024-11-21 22:35:03,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:35:03,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:35:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:35:03,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 1209 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-21 22:35:03,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:35:03,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953098439] [2024-11-21 22:35:03,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953098439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:35:03,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:35:03,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:35:03,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559311757] [2024-11-21 22:35:03,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:35:03,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:35:03,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:35:03,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:35:03,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:35:03,844 INFO L87 Difference]: Start difference. First operand 106985 states and 114095 transitions. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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) [2024-11-21 22:35:05,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:35:05,504 INFO L93 Difference]: Finished difference Result 222079 states and 236720 transitions. [2024-11-21 22:35:05,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:35:05,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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 802 [2024-11-21 22:35:05,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:35:05,626 INFO L225 Difference]: With dead ends: 222079 [2024-11-21 22:35:05,626 INFO L226 Difference]: Without dead ends: 115096 [2024-11-21 22:35:05,656 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 [2024-11-21 22:35:05,657 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 430 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:35:05,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 221 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-21 22:35:05,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115096 states. [2024-11-21 22:35:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115096 to 107839. [2024-11-21 22:35:06,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107839 states, 107838 states have (on average 1.0647730855542572) internal successors, (114823), 107838 states have internal predecessors, (114823), 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) [2024-11-21 22:35:06,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107839 states to 107839 states and 114823 transitions. [2024-11-21 22:35:06,757 INFO L78 Accepts]: Start accepts. Automaton has 107839 states and 114823 transitions. Word has length 802 [2024-11-21 22:35:06,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:35:06,757 INFO L471 AbstractCegarLoop]: Abstraction has 107839 states and 114823 transitions. [2024-11-21 22:35:06,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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) [2024-11-21 22:35:06,757 INFO L276 IsEmpty]: Start isEmpty. Operand 107839 states and 114823 transitions. [2024-11-21 22:35:06,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2024-11-21 22:35:06,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:35:06,788 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-21 22:35:06,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-21 22:35:06,789 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:35:06,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:35:06,789 INFO L85 PathProgramCache]: Analyzing trace with hash 2052133367, now seen corresponding path program 1 times [2024-11-21 22:35:06,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:35:06,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59687027] [2024-11-21 22:35:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:35:06,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:35:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:35:07,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1662 backedges. 1152 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-11-21 22:35:07,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:35:07,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59687027] [2024-11-21 22:35:07,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59687027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:35:07,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:35:07,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:35:07,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99700693] [2024-11-21 22:35:07,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:35:07,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:35:07,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:35:07,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:35:07,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:35:07,702 INFO L87 Difference]: Start difference. First operand 107839 states and 114823 transitions. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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) [2024-11-21 22:35:09,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:35:09,302 INFO L93 Difference]: Finished difference Result 221647 states and 235885 transitions. [2024-11-21 22:35:09,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:35:09,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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 810 [2024-11-21 22:35:09,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:35:09,434 INFO L225 Difference]: With dead ends: 221647 [2024-11-21 22:35:09,434 INFO L226 Difference]: Without dead ends: 113810 [2024-11-21 22:35:09,493 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 [2024-11-21 22:35:09,493 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 320 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:35:09,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 266 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-21 22:35:09,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113810 states. [2024-11-21 22:35:10,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113810 to 106989. [2024-11-21 22:35:10,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106989 states, 106988 states have (on average 1.064278236811605) internal successors, (113865), 106988 states have internal predecessors, (113865), 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) [2024-11-21 22:35:10,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106989 states to 106989 states and 113865 transitions. [2024-11-21 22:35:10,701 INFO L78 Accepts]: Start accepts. Automaton has 106989 states and 113865 transitions. Word has length 810 [2024-11-21 22:35:10,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:35:10,702 INFO L471 AbstractCegarLoop]: Abstraction has 106989 states and 113865 transitions. [2024-11-21 22:35:10,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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) [2024-11-21 22:35:10,702 INFO L276 IsEmpty]: Start isEmpty. Operand 106989 states and 113865 transitions. [2024-11-21 22:35:11,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 858 [2024-11-21 22:35:11,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:35:11,087 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:35:11,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-21 22:35:11,088 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:35:11,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:35:11,088 INFO L85 PathProgramCache]: Analyzing trace with hash -321783302, now seen corresponding path program 1 times [2024-11-21 22:35:11,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:35:11,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755964616] [2024-11-21 22:35:11,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:35:11,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:35:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:35:11,768 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2024-11-21 22:35:11,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:35:11,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755964616] [2024-11-21 22:35:11,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755964616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:35:11,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:35:11,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:35:11,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634733748] [2024-11-21 22:35:11,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:35:11,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:35:11,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:35:11,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:35:11,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:35:11,771 INFO L87 Difference]: Start difference. First operand 106989 states and 113865 transitions. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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) [2024-11-21 22:35:13,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:35:13,076 INFO L93 Difference]: Finished difference Result 111677 states and 118718 transitions. [2024-11-21 22:35:13,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:35:13,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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 857 [2024-11-21 22:35:13,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:35:13,189 INFO L225 Difference]: With dead ends: 111677 [2024-11-21 22:35:13,189 INFO L226 Difference]: Without dead ends: 111250 [2024-11-21 22:35:13,218 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 [2024-11-21 22:35:13,218 INFO L432 NwaCegarLoop]: 685 mSDtfsCounter, 412 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:35:13,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 740 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-21 22:35:13,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111250 states. [2024-11-21 22:35:14,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111250 to 106989. [2024-11-21 22:35:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106989 states, 106988 states have (on average 1.0642034620705125) internal successors, (113857), 106988 states have internal predecessors, (113857), 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) [2024-11-21 22:35:14,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106989 states to 106989 states and 113857 transitions. [2024-11-21 22:35:14,469 INFO L78 Accepts]: Start accepts. Automaton has 106989 states and 113857 transitions. Word has length 857 [2024-11-21 22:35:14,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:35:14,470 INFO L471 AbstractCegarLoop]: Abstraction has 106989 states and 113857 transitions. [2024-11-21 22:35:14,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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) [2024-11-21 22:35:14,471 INFO L276 IsEmpty]: Start isEmpty. Operand 106989 states and 113857 transitions. [2024-11-21 22:35:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 861 [2024-11-21 22:35:14,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:35:14,503 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:35:14,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-21 22:35:14,503 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:35:14,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:35:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash -733194390, now seen corresponding path program 1 times [2024-11-21 22:35:14,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:35:14,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495716121] [2024-11-21 22:35:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:35:14,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:35:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:35:15,551 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 598 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-21 22:35:15,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:35:15,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495716121] [2024-11-21 22:35:15,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495716121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:35:15,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:35:15,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 22:35:15,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428445425] [2024-11-21 22:35:15,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:35:15,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:35:15,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:35:15,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:35:15,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:35:15,554 INFO L87 Difference]: Start difference. First operand 106989 states and 113857 transitions. Second operand has 4 states, 4 states have (on average 174.5) internal successors, (698), 4 states have internal predecessors, (698), 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) [2024-11-21 22:35:17,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:35:17,649 INFO L93 Difference]: Finished difference Result 235695 states and 250427 transitions. [2024-11-21 22:35:17,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:35:17,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 174.5) internal successors, (698), 4 states have internal predecessors, (698), 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 860 [2024-11-21 22:35:17,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:35:17,785 INFO L225 Difference]: With dead ends: 235695 [2024-11-21 22:35:17,785 INFO L226 Difference]: Without dead ends: 126583 [2024-11-21 22:35:17,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:35:17,844 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 663 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:35:17,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 168 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-21 22:35:17,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126583 states. [2024-11-21 22:35:19,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126583 to 114214. [2024-11-21 22:35:19,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114214 states, 114213 states have (on average 1.063600465796363) internal successors, (121477), 114213 states have internal predecessors, (121477), 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) [2024-11-21 22:35:19,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114214 states to 114214 states and 121477 transitions. [2024-11-21 22:35:19,608 INFO L78 Accepts]: Start accepts. Automaton has 114214 states and 121477 transitions. Word has length 860 [2024-11-21 22:35:19,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:35:19,609 INFO L471 AbstractCegarLoop]: Abstraction has 114214 states and 121477 transitions. [2024-11-21 22:35:19,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.5) internal successors, (698), 4 states have internal predecessors, (698), 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) [2024-11-21 22:35:19,609 INFO L276 IsEmpty]: Start isEmpty. Operand 114214 states and 121477 transitions. [2024-11-21 22:35:19,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2024-11-21 22:35:19,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:35:19,654 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:35:19,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-21 22:35:19,654 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:35:19,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:35:19,654 INFO L85 PathProgramCache]: Analyzing trace with hash 260247586, now seen corresponding path program 1 times [2024-11-21 22:35:19,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:35:19,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174016540] [2024-11-21 22:35:19,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:35:19,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:35:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:35:19,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 1137 proven. 0 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2024-11-21 22:35:19,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:35:19,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174016540] [2024-11-21 22:35:19,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174016540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:35:19,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:35:19,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:35:19,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026396185] [2024-11-21 22:35:19,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:35:19,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:35:19,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:35:19,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:35:19,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:35:19,973 INFO L87 Difference]: Start difference. First operand 114214 states and 121477 transitions. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 2 states have internal predecessors, (428), 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) [2024-11-21 22:35:21,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:35:21,093 INFO L93 Difference]: Finished difference Result 221178 states and 235358 transitions. [2024-11-21 22:35:21,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:35:21,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 2 states have internal predecessors, (428), 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 919 [2024-11-21 22:35:21,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:35:21,206 INFO L225 Difference]: With dead ends: 221178 [2024-11-21 22:35:21,206 INFO L226 Difference]: Without dead ends: 106964 [2024-11-21 22:35:21,269 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 [2024-11-21 22:35:21,269 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 499 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:35:21,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 85 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:35:21,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106964 states.