./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.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/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.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 9315395d0a8f14500c92b8c06710daa9c3f1878481e9b5bb1bf2cb8cc368eb3d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:30:41,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:30:41,182 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:30:41,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:30:41,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:30:41,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:30:41,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:30:41,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:30:41,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:30:41,240 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:30:41,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:30:41,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:30:41,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:30:41,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:30:41,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:30:41,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:30:41,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:30:41,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:30:41,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:30:41,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:30:41,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:30:41,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:30:41,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:30:41,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:30:41,244 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:30:41,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:30:41,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:30:41,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:30:41,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:30:41,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:30:41,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:30:41,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:30:41,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:30:41,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:30:41,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:30:41,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:30:41,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:30:41,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:30:41,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:30:41,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:30:41,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:30:41,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:30:41,249 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9315395d0a8f14500c92b8c06710daa9c3f1878481e9b5bb1bf2cb8cc368eb3d [2024-11-22 02:30:41,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:30:41,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:30:41,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:30:41,518 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:30:41,519 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:30:41,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2024-11-22 02:30:43,012 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:30:43,361 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:30:43,365 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2024-11-22 02:30:43,382 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e287635f3/a6c923c73c6d48fbadf3d8437be07104/FLAGb0651bdcf [2024-11-22 02:30:43,618 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e287635f3/a6c923c73c6d48fbadf3d8437be07104 [2024-11-22 02:30:43,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:30:43,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:30:43,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:30:43,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:30:43,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:30:43,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:43,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d5b6fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43, skipping insertion in model container [2024-11-22 02:30:43,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:43,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:30:43,856 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/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c[14373,14386] [2024-11-22 02:30:43,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:30:43,876 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:30:43,947 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/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c[14373,14386] [2024-11-22 02:30:43,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:30:43,969 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:30:43,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43 WrapperNode [2024-11-22 02:30:43,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:30:43,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:30:43,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:30:43,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:30:43,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:43,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:44,030 INFO L138 Inliner]: procedures = 22, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 496 [2024-11-22 02:30:44,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:30:44,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:30:44,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:30:44,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:30:44,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:44,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:44,056 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:44,078 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]. [2024-11-22 02:30:44,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:44,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:44,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:44,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:44,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:44,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:44,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:30:44,117 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:30:44,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:30:44,117 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:30:44,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (1/1) ... [2024-11-22 02:30:44,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:30:44,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:30:44,161 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) [2024-11-22 02:30:44,164 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 [2024-11-22 02:30:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:30:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:30:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:30:44,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:30:44,291 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:30:44,293 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:30:44,855 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-22 02:30:44,859 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:30:44,873 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:30:44,873 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 02:30:44,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:30:44 BoogieIcfgContainer [2024-11-22 02:30:44,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:30:44,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:30:44,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:30:44,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:30:44,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:30:43" (1/3) ... [2024-11-22 02:30:44,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f142df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:30:44, skipping insertion in model container [2024-11-22 02:30:44,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:43" (2/3) ... [2024-11-22 02:30:44,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f142df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:30:44, skipping insertion in model container [2024-11-22 02:30:44,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:30:44" (3/3) ... [2024-11-22 02:30:44,882 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2024-11-22 02:30:44,900 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:30:44,900 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:30:44,955 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:30:44,960 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;@ff974e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:30:44,961 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:30:44,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.7829457364341086) internal successors, (230), 130 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:44,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 02:30:44,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:44,973 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] [2024-11-22 02:30:44,974 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:44,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:44,979 INFO L85 PathProgramCache]: Analyzing trace with hash -210556357, now seen corresponding path program 1 times [2024-11-22 02:30:44,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:44,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865480870] [2024-11-22 02:30:44,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:44,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:45,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:45,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:45,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865480870] [2024-11-22 02:30:45,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865480870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:45,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:45,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 02:30:45,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194604581] [2024-11-22 02:30:45,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:45,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 02:30:45,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:45,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 02:30:45,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:30:45,282 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.7829457364341086) internal successors, (230), 130 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:45,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:45,310 INFO L93 Difference]: Finished difference Result 203 states and 352 transitions. [2024-11-22 02:30:45,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 02:30:45,312 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-22 02:30:45,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:45,319 INFO L225 Difference]: With dead ends: 203 [2024-11-22 02:30:45,319 INFO L226 Difference]: Without dead ends: 127 [2024-11-22 02:30:45,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:30:45,324 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:45,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:45,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-22 02:30:45,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-22 02:30:45,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.7698412698412698) internal successors, (223), 126 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:45,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 223 transitions. [2024-11-22 02:30:45,357 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 223 transitions. Word has length 37 [2024-11-22 02:30:45,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:45,358 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 223 transitions. [2024-11-22 02:30:45,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:45,358 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 223 transitions. [2024-11-22 02:30:45,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 02:30:45,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:45,360 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] [2024-11-22 02:30:45,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:30:45,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:45,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:45,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1028204807, now seen corresponding path program 1 times [2024-11-22 02:30:45,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:45,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880063033] [2024-11-22 02:30:45,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:45,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:45,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:45,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880063033] [2024-11-22 02:30:45,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880063033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:45,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:45,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:30:45,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571717347] [2024-11-22 02:30:45,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:45,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:30:45,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:45,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:30:45,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:30:45,659 INFO L87 Difference]: Start difference. First operand 127 states and 223 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:45,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:45,736 INFO L93 Difference]: Finished difference Result 198 states and 342 transitions. [2024-11-22 02:30:45,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:30:45,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-22 02:30:45,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:45,738 INFO L225 Difference]: With dead ends: 198 [2024-11-22 02:30:45,738 INFO L226 Difference]: Without dead ends: 127 [2024-11-22 02:30:45,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:30:45,739 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 0 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:45,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 849 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:30:45,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-22 02:30:45,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-22 02:30:45,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5317460317460319) internal successors, (193), 126 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 193 transitions. [2024-11-22 02:30:45,749 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 193 transitions. Word has length 37 [2024-11-22 02:30:45,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:45,750 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 193 transitions. [2024-11-22 02:30:45,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:45,750 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 193 transitions. [2024-11-22 02:30:45,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 02:30:45,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:45,751 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:45,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:30:45,752 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:45,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash 792730303, now seen corresponding path program 1 times [2024-11-22 02:30:45,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:45,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997969403] [2024-11-22 02:30:45,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:45,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:45,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:45,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:45,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997969403] [2024-11-22 02:30:45,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997969403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:45,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:45,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:30:45,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973907557] [2024-11-22 02:30:45,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:45,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:30:45,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:45,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:30:45,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:30:45,906 INFO L87 Difference]: Start difference. First operand 127 states and 193 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:45,959 INFO L93 Difference]: Finished difference Result 251 states and 405 transitions. [2024-11-22 02:30:45,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:30:45,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-22 02:30:45,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:45,961 INFO L225 Difference]: With dead ends: 251 [2024-11-22 02:30:45,961 INFO L226 Difference]: Without dead ends: 184 [2024-11-22 02:30:45,961 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 [2024-11-22 02:30:45,962 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 89 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:45,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 338 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:45,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-22 02:30:45,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2024-11-22 02:30:45,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 1.569060773480663) internal successors, (284), 181 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:45,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 284 transitions. [2024-11-22 02:30:45,972 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 284 transitions. Word has length 66 [2024-11-22 02:30:45,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:45,972 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 284 transitions. [2024-11-22 02:30:45,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:45,973 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 284 transitions. [2024-11-22 02:30:45,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 02:30:45,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:45,974 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:45,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:30:45,974 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:45,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:45,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1252750669, now seen corresponding path program 1 times [2024-11-22 02:30:45,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:45,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102263836] [2024-11-22 02:30:45,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:45,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:46,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:46,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:46,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102263836] [2024-11-22 02:30:46,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102263836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:46,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:46,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:30:46,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064080260] [2024-11-22 02:30:46,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:46,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:30:46,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:46,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:30:46,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:30:46,077 INFO L87 Difference]: Start difference. First operand 182 states and 284 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:46,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:46,118 INFO L93 Difference]: Finished difference Result 410 states and 668 transitions. [2024-11-22 02:30:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:30:46,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-22 02:30:46,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:46,120 INFO L225 Difference]: With dead ends: 410 [2024-11-22 02:30:46,120 INFO L226 Difference]: Without dead ends: 288 [2024-11-22 02:30:46,121 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 [2024-11-22 02:30:46,121 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 91 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:46,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 350 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:46,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-22 02:30:46,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 286. [2024-11-22 02:30:46,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 1.6105263157894736) internal successors, (459), 285 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:46,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 459 transitions. [2024-11-22 02:30:46,132 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 459 transitions. Word has length 68 [2024-11-22 02:30:46,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:46,132 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 459 transitions. [2024-11-22 02:30:46,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:46,133 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 459 transitions. [2024-11-22 02:30:46,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-22 02:30:46,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:46,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:46,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:30:46,135 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:46,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:46,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1185859003, now seen corresponding path program 1 times [2024-11-22 02:30:46,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:46,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196639787] [2024-11-22 02:30:46,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:46,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:46,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:46,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:46,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196639787] [2024-11-22 02:30:46,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196639787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:46,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:46,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:30:46,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675024233] [2024-11-22 02:30:46,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:46,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:30:46,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:46,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:30:46,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:30:46,286 INFO L87 Difference]: Start difference. First operand 286 states and 459 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:46,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:46,312 INFO L93 Difference]: Finished difference Result 706 states and 1165 transitions. [2024-11-22 02:30:46,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:30:46,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-22 02:30:46,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:46,315 INFO L225 Difference]: With dead ends: 706 [2024-11-22 02:30:46,315 INFO L226 Difference]: Without dead ends: 480 [2024-11-22 02:30:46,318 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 [2024-11-22 02:30:46,320 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 85 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:46,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 351 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:46,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-22 02:30:46,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 478. [2024-11-22 02:30:46,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 477 states have (on average 1.6331236897274632) internal successors, (779), 477 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:46,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 779 transitions. [2024-11-22 02:30:46,350 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 779 transitions. Word has length 70 [2024-11-22 02:30:46,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:46,351 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 779 transitions. [2024-11-22 02:30:46,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:46,352 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 779 transitions. [2024-11-22 02:30:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 02:30:46,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:46,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:46,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:30:46,357 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:46,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:46,357 INFO L85 PathProgramCache]: Analyzing trace with hash -565459959, now seen corresponding path program 1 times [2024-11-22 02:30:46,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:46,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821205605] [2024-11-22 02:30:46,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:46,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:46,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:46,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:46,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821205605] [2024-11-22 02:30:46,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821205605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:46,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:46,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:30:46,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837048047] [2024-11-22 02:30:46,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:46,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:30:46,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:46,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:30:46,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:30:46,535 INFO L87 Difference]: Start difference. First operand 478 states and 779 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:46,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:46,703 INFO L93 Difference]: Finished difference Result 2018 states and 3397 transitions. [2024-11-22 02:30:46,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:30:46,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-22 02:30:46,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:46,711 INFO L225 Difference]: With dead ends: 2018 [2024-11-22 02:30:46,712 INFO L226 Difference]: Without dead ends: 1600 [2024-11-22 02:30:46,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:30:46,714 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 667 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:46,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 1153 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:30:46,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-22 02:30:46,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 843. [2024-11-22 02:30:46,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 842 states have (on average 1.652019002375297) internal successors, (1391), 842 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1391 transitions. [2024-11-22 02:30:46,759 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1391 transitions. Word has length 72 [2024-11-22 02:30:46,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:46,761 INFO L471 AbstractCegarLoop]: Abstraction has 843 states and 1391 transitions. [2024-11-22 02:30:46,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1391 transitions. [2024-11-22 02:30:46,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 02:30:46,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:46,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:46,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:30:46,764 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:46,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:46,764 INFO L85 PathProgramCache]: Analyzing trace with hash 2022745121, now seen corresponding path program 1 times [2024-11-22 02:30:46,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:46,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974735478] [2024-11-22 02:30:46,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:46,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:46,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:46,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974735478] [2024-11-22 02:30:46,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974735478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:46,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:46,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:30:46,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256066217] [2024-11-22 02:30:46,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:46,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:30:46,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:46,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:30:46,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:30:46,876 INFO L87 Difference]: Start difference. First operand 843 states and 1391 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:46,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:46,972 INFO L93 Difference]: Finished difference Result 2444 states and 4106 transitions. [2024-11-22 02:30:46,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:30:46,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-22 02:30:46,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:46,978 INFO L225 Difference]: With dead ends: 2444 [2024-11-22 02:30:46,979 INFO L226 Difference]: Without dead ends: 1661 [2024-11-22 02:30:46,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:30:46,982 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 331 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:46,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 548 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:30:46,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2024-11-22 02:30:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1243. [2024-11-22 02:30:47,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1242 states have (on average 1.6610305958132046) internal successors, (2063), 1242 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 2063 transitions. [2024-11-22 02:30:47,018 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 2063 transitions. Word has length 73 [2024-11-22 02:30:47,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:47,018 INFO L471 AbstractCegarLoop]: Abstraction has 1243 states and 2063 transitions. [2024-11-22 02:30:47,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 2063 transitions. [2024-11-22 02:30:47,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 02:30:47,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:47,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:47,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:30:47,020 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:47,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:47,020 INFO L85 PathProgramCache]: Analyzing trace with hash 482119495, now seen corresponding path program 1 times [2024-11-22 02:30:47,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:47,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782141516] [2024-11-22 02:30:47,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:47,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:47,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:47,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782141516] [2024-11-22 02:30:47,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782141516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:47,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:47,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:30:47,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785913867] [2024-11-22 02:30:47,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:47,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:30:47,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:47,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:30:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:30:47,107 INFO L87 Difference]: Start difference. First operand 1243 states and 2063 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:47,138 INFO L93 Difference]: Finished difference Result 2465 states and 4106 transitions. [2024-11-22 02:30:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:30:47,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-22 02:30:47,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:47,145 INFO L225 Difference]: With dead ends: 2465 [2024-11-22 02:30:47,145 INFO L226 Difference]: Without dead ends: 1783 [2024-11-22 02:30:47,146 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 [2024-11-22 02:30:47,147 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 92 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:47,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 420 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:47,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2024-11-22 02:30:47,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1781. [2024-11-22 02:30:47,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1780 states have (on average 1.650561797752809) internal successors, (2938), 1780 states have internal predecessors, (2938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2938 transitions. [2024-11-22 02:30:47,185 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2938 transitions. Word has length 74 [2024-11-22 02:30:47,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:47,186 INFO L471 AbstractCegarLoop]: Abstraction has 1781 states and 2938 transitions. [2024-11-22 02:30:47,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2938 transitions. [2024-11-22 02:30:47,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 02:30:47,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:47,187 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:47,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:30:47,187 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:47,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:47,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1535861927, now seen corresponding path program 1 times [2024-11-22 02:30:47,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:47,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554575117] [2024-11-22 02:30:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:47,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:47,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:47,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:47,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554575117] [2024-11-22 02:30:47,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554575117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:47,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:47,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:30:47,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273235820] [2024-11-22 02:30:47,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:47,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:30:47,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:47,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:30:47,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:30:47,267 INFO L87 Difference]: Start difference. First operand 1781 states and 2938 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:47,313 INFO L93 Difference]: Finished difference Result 3485 states and 5770 transitions. [2024-11-22 02:30:47,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:30:47,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-22 02:30:47,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:47,321 INFO L225 Difference]: With dead ends: 3485 [2024-11-22 02:30:47,322 INFO L226 Difference]: Without dead ends: 2523 [2024-11-22 02:30:47,323 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 [2024-11-22 02:30:47,324 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 86 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:47,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 409 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:47,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2024-11-22 02:30:47,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2521. [2024-11-22 02:30:47,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 2520 states have (on average 1.6396825396825396) internal successors, (4132), 2520 states have internal predecessors, (4132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 4132 transitions. [2024-11-22 02:30:47,375 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 4132 transitions. Word has length 74 [2024-11-22 02:30:47,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:47,376 INFO L471 AbstractCegarLoop]: Abstraction has 2521 states and 4132 transitions. [2024-11-22 02:30:47,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 4132 transitions. [2024-11-22 02:30:47,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 02:30:47,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:47,377 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:47,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:30:47,377 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:47,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:47,378 INFO L85 PathProgramCache]: Analyzing trace with hash 821728320, now seen corresponding path program 1 times [2024-11-22 02:30:47,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:47,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187827641] [2024-11-22 02:30:47,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:47,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:47,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:47,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:47,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187827641] [2024-11-22 02:30:47,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187827641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:47,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:47,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:30:47,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587117453] [2024-11-22 02:30:47,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:47,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:30:47,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:47,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:30:47,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:30:47,467 INFO L87 Difference]: Start difference. First operand 2521 states and 4132 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:47,571 INFO L93 Difference]: Finished difference Result 7924 states and 13063 transitions. [2024-11-22 02:30:47,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:30:47,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-22 02:30:47,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:47,588 INFO L225 Difference]: With dead ends: 7924 [2024-11-22 02:30:47,589 INFO L226 Difference]: Without dead ends: 5521 [2024-11-22 02:30:47,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:30:47,596 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 330 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:47,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 614 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:30:47,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2024-11-22 02:30:47,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 4003. [2024-11-22 02:30:47,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4003 states, 4002 states have (on average 1.632183908045977) internal successors, (6532), 4002 states have internal predecessors, (6532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4003 states to 4003 states and 6532 transitions. [2024-11-22 02:30:47,723 INFO L78 Accepts]: Start accepts. Automaton has 4003 states and 6532 transitions. Word has length 74 [2024-11-22 02:30:47,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:47,723 INFO L471 AbstractCegarLoop]: Abstraction has 4003 states and 6532 transitions. [2024-11-22 02:30:47,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,723 INFO L276 IsEmpty]: Start isEmpty. Operand 4003 states and 6532 transitions. [2024-11-22 02:30:47,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 02:30:47,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:47,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:47,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 02:30:47,724 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:47,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:47,725 INFO L85 PathProgramCache]: Analyzing trace with hash 437186213, now seen corresponding path program 1 times [2024-11-22 02:30:47,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:47,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893643694] [2024-11-22 02:30:47,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:47,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:47,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:47,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:47,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893643694] [2024-11-22 02:30:47,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893643694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:47,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:47,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:30:47,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198244241] [2024-11-22 02:30:47,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:47,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:30:47,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:47,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:30:47,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:30:47,787 INFO L87 Difference]: Start difference. First operand 4003 states and 6532 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:47,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:47,863 INFO L93 Difference]: Finished difference Result 8918 states and 14691 transitions. [2024-11-22 02:30:47,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:30:47,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-22 02:30:47,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:47,881 INFO L225 Difference]: With dead ends: 8918 [2024-11-22 02:30:47,882 INFO L226 Difference]: Without dead ends: 6035 [2024-11-22 02:30:47,888 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 [2024-11-22 02:30:47,889 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 98 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:47,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 437 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:47,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6035 states. [2024-11-22 02:30:47,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6035 to 6033. [2024-11-22 02:30:47,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6033 states, 6032 states have (on average 1.626160477453581) internal successors, (9809), 6032 states have internal predecessors, (9809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:48,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6033 states to 6033 states and 9809 transitions. [2024-11-22 02:30:48,013 INFO L78 Accepts]: Start accepts. Automaton has 6033 states and 9809 transitions. Word has length 74 [2024-11-22 02:30:48,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:48,013 INFO L471 AbstractCegarLoop]: Abstraction has 6033 states and 9809 transitions. [2024-11-22 02:30:48,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:48,014 INFO L276 IsEmpty]: Start isEmpty. Operand 6033 states and 9809 transitions. [2024-11-22 02:30:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 02:30:48,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:48,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:48,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 02:30:48,014 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:48,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1881049800, now seen corresponding path program 1 times [2024-11-22 02:30:48,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:48,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978197865] [2024-11-22 02:30:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:48,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:48,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:48,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:48,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978197865] [2024-11-22 02:30:48,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978197865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:48,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:48,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:30:48,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957330192] [2024-11-22 02:30:48,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:48,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:30:48,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:48,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:30:48,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:30:48,128 INFO L87 Difference]: Start difference. First operand 6033 states and 9809 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:48,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:48,301 INFO L93 Difference]: Finished difference Result 19008 states and 30980 transitions. [2024-11-22 02:30:48,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:30:48,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-22 02:30:48,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:48,345 INFO L225 Difference]: With dead ends: 19008 [2024-11-22 02:30:48,345 INFO L226 Difference]: Without dead ends: 13053 [2024-11-22 02:30:48,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:30:48,356 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 328 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:48,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 616 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13053 states. [2024-11-22 02:30:48,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13053 to 9500. [2024-11-22 02:30:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9500 states, 9499 states have (on average 1.6144857353405622) internal successors, (15336), 9499 states have internal predecessors, (15336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:48,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9500 states to 9500 states and 15336 transitions. [2024-11-22 02:30:48,650 INFO L78 Accepts]: Start accepts. Automaton has 9500 states and 15336 transitions. Word has length 75 [2024-11-22 02:30:48,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:48,650 INFO L471 AbstractCegarLoop]: Abstraction has 9500 states and 15336 transitions. [2024-11-22 02:30:48,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:48,651 INFO L276 IsEmpty]: Start isEmpty. Operand 9500 states and 15336 transitions. [2024-11-22 02:30:48,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-22 02:30:48,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:48,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:48,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 02:30:48,652 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:48,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:48,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1635147248, now seen corresponding path program 1 times [2024-11-22 02:30:48,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:48,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834190167] [2024-11-22 02:30:48,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:48,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:48,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:48,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:48,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834190167] [2024-11-22 02:30:48,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834190167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:48,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:48,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:30:48,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948227518] [2024-11-22 02:30:48,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:48,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:30:48,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:48,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:30:48,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:30:48,843 INFO L87 Difference]: Start difference. First operand 9500 states and 15336 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:49,038 INFO L93 Difference]: Finished difference Result 18924 states and 30569 transitions. [2024-11-22 02:30:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:30:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-22 02:30:49,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:49,054 INFO L225 Difference]: With dead ends: 18924 [2024-11-22 02:30:49,054 INFO L226 Difference]: Without dead ends: 9502 [2024-11-22 02:30:49,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:30:49,062 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 256 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:49,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 507 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:49,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9502 states. [2024-11-22 02:30:49,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9502 to 9500. [2024-11-22 02:30:49,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9500 states, 9499 states have (on average 1.6013264554163595) internal successors, (15211), 9499 states have internal predecessors, (15211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9500 states to 9500 states and 15211 transitions. [2024-11-22 02:30:49,218 INFO L78 Accepts]: Start accepts. Automaton has 9500 states and 15211 transitions. Word has length 77 [2024-11-22 02:30:49,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:49,218 INFO L471 AbstractCegarLoop]: Abstraction has 9500 states and 15211 transitions. [2024-11-22 02:30:49,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:49,219 INFO L276 IsEmpty]: Start isEmpty. Operand 9500 states and 15211 transitions. [2024-11-22 02:30:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 02:30:49,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:49,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:49,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 02:30:49,220 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:49,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:49,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1744604605, now seen corresponding path program 1 times [2024-11-22 02:30:49,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:49,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463068136] [2024-11-22 02:30:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:49,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:49,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:49,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:49,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463068136] [2024-11-22 02:30:49,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463068136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:49,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:49,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:30:49,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663411019] [2024-11-22 02:30:49,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:49,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:30:49,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:49,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:30:49,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:30:49,421 INFO L87 Difference]: Start difference. First operand 9500 states and 15211 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:49,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:49,636 INFO L93 Difference]: Finished difference Result 27212 states and 43717 transitions. [2024-11-22 02:30:49,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:30:49,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-22 02:30:49,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:49,667 INFO L225 Difference]: With dead ends: 27212 [2024-11-22 02:30:49,667 INFO L226 Difference]: Without dead ends: 17790 [2024-11-22 02:30:49,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:30:49,683 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 250 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:49,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 514 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:49,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17790 states. [2024-11-22 02:30:49,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17790 to 17788. [2024-11-22 02:30:50,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17788 states, 17787 states have (on average 1.5865519761623659) internal successors, (28220), 17787 states have internal predecessors, (28220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:50,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17788 states to 17788 states and 28220 transitions. [2024-11-22 02:30:50,047 INFO L78 Accepts]: Start accepts. Automaton has 17788 states and 28220 transitions. Word has length 80 [2024-11-22 02:30:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:50,047 INFO L471 AbstractCegarLoop]: Abstraction has 17788 states and 28220 transitions. [2024-11-22 02:30:50,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 17788 states and 28220 transitions. [2024-11-22 02:30:50,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-22 02:30:50,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:50,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:30:50,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 02:30:50,049 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:50,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:50,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1323256441, now seen corresponding path program 1 times [2024-11-22 02:30:50,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:50,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456535358] [2024-11-22 02:30:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:50,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:50,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:50,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:50,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456535358] [2024-11-22 02:30:50,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456535358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:50,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:50,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 02:30:50,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003997300] [2024-11-22 02:30:50,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:50,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 02:30:50,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:50,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 02:30:50,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:30:50,381 INFO L87 Difference]: Start difference. First operand 17788 states and 28220 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:50,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:50,583 INFO L93 Difference]: Finished difference Result 18876 states and 29669 transitions. [2024-11-22 02:30:50,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 02:30:50,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-22 02:30:50,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:50,619 INFO L225 Difference]: With dead ends: 18876 [2024-11-22 02:30:50,619 INFO L226 Difference]: Without dead ends: 18874 [2024-11-22 02:30:50,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:30:50,629 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:50,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1291 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:50,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18874 states. [2024-11-22 02:30:50,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18874 to 18874. [2024-11-22 02:30:50,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18874 states, 18873 states have (on average 1.5523234249986753) internal successors, (29297), 18873 states have internal predecessors, (29297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18874 states to 18874 states and 29297 transitions. [2024-11-22 02:30:51,182 INFO L78 Accepts]: Start accepts. Automaton has 18874 states and 29297 transitions. Word has length 81 [2024-11-22 02:30:51,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:51,182 INFO L471 AbstractCegarLoop]: Abstraction has 18874 states and 29297 transitions. [2024-11-22 02:30:51,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:51,183 INFO L276 IsEmpty]: Start isEmpty. Operand 18874 states and 29297 transitions. [2024-11-22 02:30:51,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 02:30:51,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:51,184 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:30:51,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 02:30:51,192 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:51,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:51,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1301469614, now seen corresponding path program 1 times [2024-11-22 02:30:51,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:51,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391747878] [2024-11-22 02:30:51,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:51,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 02:30:51,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:51,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391747878] [2024-11-22 02:30:51,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391747878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:51,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:51,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:30:51,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668526598] [2024-11-22 02:30:51,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:51,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:30:51,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:51,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:30:51,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:30:51,397 INFO L87 Difference]: Start difference. First operand 18874 states and 29297 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:51,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:51,750 INFO L93 Difference]: Finished difference Result 46330 states and 72111 transitions. [2024-11-22 02:30:51,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:30:51,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 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 107 [2024-11-22 02:30:51,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:51,823 INFO L225 Difference]: With dead ends: 46330 [2024-11-22 02:30:51,824 INFO L226 Difference]: Without dead ends: 37348 [2024-11-22 02:30:51,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:30:51,840 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 415 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:51,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 802 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:30:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37348 states. [2024-11-22 02:30:52,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37348 to 29074. [2024-11-22 02:30:52,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29074 states, 29073 states have (on average 1.549857255873147) internal successors, (45059), 29073 states have internal predecessors, (45059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29074 states to 29074 states and 45059 transitions. [2024-11-22 02:30:52,761 INFO L78 Accepts]: Start accepts. Automaton has 29074 states and 45059 transitions. Word has length 107 [2024-11-22 02:30:52,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:52,761 INFO L471 AbstractCegarLoop]: Abstraction has 29074 states and 45059 transitions. [2024-11-22 02:30:52,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:52,761 INFO L276 IsEmpty]: Start isEmpty. Operand 29074 states and 45059 transitions. [2024-11-22 02:30:52,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 02:30:52,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:52,763 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:30:52,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 02:30:52,763 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:52,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:52,764 INFO L85 PathProgramCache]: Analyzing trace with hash -247727182, now seen corresponding path program 1 times [2024-11-22 02:30:52,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:52,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357703989] [2024-11-22 02:30:52,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:52,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:52,871 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 02:30:52,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:52,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357703989] [2024-11-22 02:30:52,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357703989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:52,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:52,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:30:52,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923673747] [2024-11-22 02:30:52,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:52,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:30:52,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:52,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:30:52,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:30:52,874 INFO L87 Difference]: Start difference. First operand 29074 states and 45059 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:53,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:53,414 INFO L93 Difference]: Finished difference Result 49954 states and 77751 transitions. [2024-11-22 02:30:53,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:30:53,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 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 107 [2024-11-22 02:30:53,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:53,494 INFO L225 Difference]: With dead ends: 49954 [2024-11-22 02:30:53,494 INFO L226 Difference]: Without dead ends: 40972 [2024-11-22 02:30:53,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:30:53,514 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 420 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:53,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 856 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:30:53,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40972 states. [2024-11-22 02:30:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40972 to 39462. [2024-11-22 02:30:54,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39462 states, 39461 states have (on average 1.5499100377587998) internal successors, (61161), 39461 states have internal predecessors, (61161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:54,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39462 states to 39462 states and 61161 transitions. [2024-11-22 02:30:54,464 INFO L78 Accepts]: Start accepts. Automaton has 39462 states and 61161 transitions. Word has length 107 [2024-11-22 02:30:54,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:54,464 INFO L471 AbstractCegarLoop]: Abstraction has 39462 states and 61161 transitions. [2024-11-22 02:30:54,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:54,465 INFO L276 IsEmpty]: Start isEmpty. Operand 39462 states and 61161 transitions. [2024-11-22 02:30:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 02:30:54,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:54,467 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:30:54,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 02:30:54,467 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:54,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:54,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1346402896, now seen corresponding path program 1 times [2024-11-22 02:30:54,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:54,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137851640] [2024-11-22 02:30:54,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:54,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:54,723 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 02:30:54,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:54,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137851640] [2024-11-22 02:30:54,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137851640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:54,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:54,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:30:54,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040959187] [2024-11-22 02:30:54,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:54,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:30:54,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:54,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:30:54,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:30:54,725 INFO L87 Difference]: Start difference. First operand 39462 states and 61161 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:55,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:55,407 INFO L93 Difference]: Finished difference Result 82643 states and 128637 transitions. [2024-11-22 02:30:55,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:30:55,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 107 [2024-11-22 02:30:55,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:55,562 INFO L225 Difference]: With dead ends: 82643 [2024-11-22 02:30:55,562 INFO L226 Difference]: Without dead ends: 73401 [2024-11-22 02:30:55,585 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 [2024-11-22 02:30:55,588 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 74 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:55,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 354 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:55,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73401 states. [2024-11-22 02:30:56,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73401 to 73284. [2024-11-22 02:30:56,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73284 states, 73283 states have (on average 1.552201738465947) internal successors, (113750), 73283 states have internal predecessors, (113750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:57,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73284 states to 73284 states and 113750 transitions. [2024-11-22 02:30:57,094 INFO L78 Accepts]: Start accepts. Automaton has 73284 states and 113750 transitions. Word has length 107 [2024-11-22 02:30:57,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:30:57,094 INFO L471 AbstractCegarLoop]: Abstraction has 73284 states and 113750 transitions. [2024-11-22 02:30:57,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:57,095 INFO L276 IsEmpty]: Start isEmpty. Operand 73284 states and 113750 transitions. [2024-11-22 02:30:57,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-22 02:30:57,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:30:57,097 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:30:57,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 02:30:57,098 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:30:57,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:30:57,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1873257394, now seen corresponding path program 1 times [2024-11-22 02:30:57,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:30:57,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692584549] [2024-11-22 02:30:57,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:30:57,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:30:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:30:57,437 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:30:57,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:30:57,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692584549] [2024-11-22 02:30:57,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692584549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:30:57,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:30:57,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:30:57,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74973238] [2024-11-22 02:30:57,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:30:57,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:30:57,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:30:57,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:30:57,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:30:57,438 INFO L87 Difference]: Start difference. First operand 73284 states and 113750 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:30:58,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:30:58,985 INFO L93 Difference]: Finished difference Result 218111 states and 337824 transitions. [2024-11-22 02:30:58,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:30:58,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2024-11-22 02:30:58,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:30:59,316 INFO L225 Difference]: With dead ends: 218111 [2024-11-22 02:30:59,316 INFO L226 Difference]: Without dead ends: 144905 [2024-11-22 02:30:59,389 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 [2024-11-22 02:30:59,390 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 144 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:30:59,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 460 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:30:59,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144905 states. [2024-11-22 02:31:01,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144905 to 144903. [2024-11-22 02:31:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144903 states, 144902 states have (on average 1.535706891554292) internal successors, (222527), 144902 states have internal predecessors, (222527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:02,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144903 states to 144903 states and 222527 transitions. [2024-11-22 02:31:02,809 INFO L78 Accepts]: Start accepts. Automaton has 144903 states and 222527 transitions. Word has length 108 [2024-11-22 02:31:02,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:31:02,810 INFO L471 AbstractCegarLoop]: Abstraction has 144903 states and 222527 transitions. [2024-11-22 02:31:02,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:02,810 INFO L276 IsEmpty]: Start isEmpty. Operand 144903 states and 222527 transitions. [2024-11-22 02:31:02,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-22 02:31:02,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:31:02,814 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:31:02,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 02:31:02,815 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:31:02,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:31:02,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1134351272, now seen corresponding path program 1 times [2024-11-22 02:31:02,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:31:02,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820657318] [2024-11-22 02:31:02,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:31:02,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:31:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:31:02,916 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 02:31:02,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:31:02,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820657318] [2024-11-22 02:31:02,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820657318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:31:02,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:31:02,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:31:02,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687304013] [2024-11-22 02:31:02,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:31:02,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:31:02,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:31:02,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:31:02,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:31:02,918 INFO L87 Difference]: Start difference. First operand 144903 states and 222527 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:04,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:31:04,929 INFO L93 Difference]: Finished difference Result 235303 states and 362714 transitions. [2024-11-22 02:31:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:31:04,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 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 108 [2024-11-22 02:31:04,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:31:05,270 INFO L225 Difference]: With dead ends: 235303 [2024-11-22 02:31:05,270 INFO L226 Difference]: Without dead ends: 151263 [2024-11-22 02:31:05,349 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 [2024-11-22 02:31:05,352 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 173 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:31:05,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 573 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:31:05,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151263 states. [2024-11-22 02:31:07,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151263 to 100933. [2024-11-22 02:31:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100933 states, 100932 states have (on average 1.5309812547061388) internal successors, (154525), 100932 states have internal predecessors, (154525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:07,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100933 states to 100933 states and 154525 transitions. [2024-11-22 02:31:07,915 INFO L78 Accepts]: Start accepts. Automaton has 100933 states and 154525 transitions. Word has length 108 [2024-11-22 02:31:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:31:07,916 INFO L471 AbstractCegarLoop]: Abstraction has 100933 states and 154525 transitions. [2024-11-22 02:31:07,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:07,916 INFO L276 IsEmpty]: Start isEmpty. Operand 100933 states and 154525 transitions. [2024-11-22 02:31:07,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-22 02:31:07,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:31:07,921 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:31:07,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 02:31:07,921 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:31:07,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:31:07,922 INFO L85 PathProgramCache]: Analyzing trace with hash -451988456, now seen corresponding path program 1 times [2024-11-22 02:31:07,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:31:07,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958605440] [2024-11-22 02:31:07,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:31:07,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:31:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:31:08,045 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:31:08,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:31:08,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958605440] [2024-11-22 02:31:08,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958605440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:31:08,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:31:08,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:31:08,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755446181] [2024-11-22 02:31:08,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:31:08,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:31:08,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:31:08,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:31:08,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:31:08,049 INFO L87 Difference]: Start difference. First operand 100933 states and 154525 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:10,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:31:10,359 INFO L93 Difference]: Finished difference Result 300365 states and 458809 transitions. [2024-11-22 02:31:10,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:31:10,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2024-11-22 02:31:10,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:31:10,782 INFO L225 Difference]: With dead ends: 300365 [2024-11-22 02:31:10,782 INFO L226 Difference]: Without dead ends: 199563 [2024-11-22 02:31:10,879 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 [2024-11-22 02:31:10,881 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 125 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:31:10,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 436 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:31:11,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199563 states. [2024-11-22 02:31:15,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199563 to 199561. [2024-11-22 02:31:15,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199561 states, 199560 states have (on average 1.514216275806775) internal successors, (302177), 199560 states have internal predecessors, (302177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:15,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199561 states to 199561 states and 302177 transitions. [2024-11-22 02:31:15,704 INFO L78 Accepts]: Start accepts. Automaton has 199561 states and 302177 transitions. Word has length 108 [2024-11-22 02:31:15,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:31:15,705 INFO L471 AbstractCegarLoop]: Abstraction has 199561 states and 302177 transitions. [2024-11-22 02:31:15,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:15,705 INFO L276 IsEmpty]: Start isEmpty. Operand 199561 states and 302177 transitions. [2024-11-22 02:31:15,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:31:15,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:31:15,723 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:31:15,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 02:31:15,724 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:31:15,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:31:15,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2141471176, now seen corresponding path program 1 times [2024-11-22 02:31:15,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:31:15,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695916193] [2024-11-22 02:31:15,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:31:15,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:31:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:31:15,794 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:31:15,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:31:15,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695916193] [2024-11-22 02:31:15,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695916193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:31:15,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:31:15,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:31:15,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330386444] [2024-11-22 02:31:15,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:31:15,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:31:15,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:31:15,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:31:15,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:31:15,796 INFO L87 Difference]: Start difference. First operand 199561 states and 302177 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:18,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:31:18,843 INFO L93 Difference]: Finished difference Result 298193 states and 449833 transitions. [2024-11-22 02:31:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:31:18,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-22 02:31:18,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:31:19,376 INFO L225 Difference]: With dead ends: 298193 [2024-11-22 02:31:19,376 INFO L226 Difference]: Without dead ends: 199665 [2024-11-22 02:31:19,504 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 [2024-11-22 02:31:19,504 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 118 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:31:19,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 520 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:31:19,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199665 states. [2024-11-22 02:31:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199665 to 199663. [2024-11-22 02:31:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199663 states, 199662 states have (on average 1.5026444691528684) internal successors, (300021), 199662 states have internal predecessors, (300021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199663 states to 199663 states and 300021 transitions. [2024-11-22 02:31:24,232 INFO L78 Accepts]: Start accepts. Automaton has 199663 states and 300021 transitions. Word has length 109 [2024-11-22 02:31:24,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:31:24,233 INFO L471 AbstractCegarLoop]: Abstraction has 199663 states and 300021 transitions. [2024-11-22 02:31:24,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:24,233 INFO L276 IsEmpty]: Start isEmpty. Operand 199663 states and 300021 transitions. [2024-11-22 02:31:24,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:31:24,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:31:24,242 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:31:24,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 02:31:24,242 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:31:24,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:31:24,246 INFO L85 PathProgramCache]: Analyzing trace with hash -375552311, now seen corresponding path program 1 times [2024-11-22 02:31:24,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:31:24,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740611239] [2024-11-22 02:31:24,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:31:24,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:31:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:31:24,335 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:31:24,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:31:24,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740611239] [2024-11-22 02:31:24,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740611239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:31:24,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:31:24,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:31:24,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679591641] [2024-11-22 02:31:24,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:31:24,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:31:24,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:31:24,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:31:24,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:31:24,336 INFO L87 Difference]: Start difference. First operand 199663 states and 300021 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:26,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:31:26,420 INFO L93 Difference]: Finished difference Result 267849 states and 401170 transitions. [2024-11-22 02:31:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:31:26,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-22 02:31:26,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:31:26,806 INFO L225 Difference]: With dead ends: 267849 [2024-11-22 02:31:26,807 INFO L226 Difference]: Without dead ends: 169331 [2024-11-22 02:31:26,893 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 [2024-11-22 02:31:26,894 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 132 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:31:26,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 536 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:31:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169331 states. [2024-11-22 02:31:30,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169331 to 169329. [2024-11-22 02:31:30,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169329 states, 169328 states have (on average 1.4912477558348294) internal successors, (252510), 169328 states have internal predecessors, (252510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169329 states to 169329 states and 252510 transitions. [2024-11-22 02:31:30,787 INFO L78 Accepts]: Start accepts. Automaton has 169329 states and 252510 transitions. Word has length 109 [2024-11-22 02:31:30,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:31:30,788 INFO L471 AbstractCegarLoop]: Abstraction has 169329 states and 252510 transitions. [2024-11-22 02:31:30,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:31:30,788 INFO L276 IsEmpty]: Start isEmpty. Operand 169329 states and 252510 transitions. [2024-11-22 02:31:30,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:31:30,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:31:30,797 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:31:30,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 02:31:30,797 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:31:30,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:31:30,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1394779984, now seen corresponding path program 1 times [2024-11-22 02:31:30,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:31:30,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993527437] [2024-11-22 02:31:30,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:31:30,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:31:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:31:30,982 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:31:30,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:31:30,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993527437] [2024-11-22 02:31:30,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993527437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:31:30,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:31:30,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:31:30,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972665634] [2024-11-22 02:31:30,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:31:30,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:31:30,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:31:30,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:31:30,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:31:30,983 INFO L87 Difference]: Start difference. First operand 169329 states and 252510 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)