./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.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 2164ea7ff9e119435a975a3ff24098e6247a3cb559bae891b283444f40f36a64 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:11:41,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:11:41,377 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:11:41,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:11:41,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:11:41,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:11:41,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:11:41,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:11:41,422 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:11:41,424 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:11:41,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:11:41,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:11:41,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:11:41,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:11:41,427 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:11:41,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:11:41,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:11:41,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:11:41,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:11:41,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:11:41,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:11:41,433 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:11:41,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:11:41,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:11:41,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:11:41,435 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:11:41,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:11:41,435 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:11:41,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:11:41,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:11:41,436 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:11:41,436 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:11:41,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:11:41,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:11:41,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:11:41,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:11:41,437 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:11:41,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:11:41,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:11:41,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:11:41,438 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:11:41,440 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:11:41,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2164ea7ff9e119435a975a3ff24098e6247a3cb559bae891b283444f40f36a64 [2024-11-18 15:11:41,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:11:41,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:11:41,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:11:41,750 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:11:41,750 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:11:41,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c [2024-11-18 15:11:43,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:11:43,448 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:11:43,451 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c [2024-11-18 15:11:43,469 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79f265192/ea6abc15d1b44bda9195fb43559ffb42/FLAGdd9fd9040 [2024-11-18 15:11:43,486 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79f265192/ea6abc15d1b44bda9195fb43559ffb42 [2024-11-18 15:11:43,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:11:43,490 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:11:43,492 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:11:43,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:11:43,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:11:43,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:11:43" (1/1) ... [2024-11-18 15:11:43,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d7eaccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:43, skipping insertion in model container [2024-11-18 15:11:43,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:11:43" (1/1) ... [2024-11-18 15:11:43,562 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:11:43,905 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-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c[11829,11842] [2024-11-18 15:11:43,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:11:44,004 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:11:44,128 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-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c[11829,11842] [2024-11-18 15:11:44,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:11:44,284 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:11:44,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44 WrapperNode [2024-11-18 15:11:44,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:11:44,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:11:44,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:11:44,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:11:44,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,378 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1048 [2024-11-18 15:11:44,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:11:44,379 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:11:44,379 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:11:44,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:11:44,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,404 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,435 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 15:11:44,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:11:44,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:11:44,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:11:44,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:11:44,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (1/1) ... [2024-11-18 15:11:44,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:11:44,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:11:44,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 15:11:44,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 15:11:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:11:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:11:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:11:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:11:44,731 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:11:44,733 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:11:45,581 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-11-18 15:11:45,581 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:11:45,606 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:11:45,608 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 15:11:45,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:11:45 BoogieIcfgContainer [2024-11-18 15:11:45,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:11:45,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:11:45,612 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:11:45,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:11:45,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:11:43" (1/3) ... [2024-11-18 15:11:45,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3eacf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:11:45, skipping insertion in model container [2024-11-18 15:11:45,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:11:44" (2/3) ... [2024-11-18 15:11:45,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3eacf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:11:45, skipping insertion in model container [2024-11-18 15:11:45,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:11:45" (3/3) ... [2024-11-18 15:11:45,619 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c [2024-11-18 15:11:45,638 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:11:45,638 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 15:11:45,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:11:45,725 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;@b498013, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:11:45,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 15:11:45,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 232 states, 230 states have (on average 1.7695652173913043) internal successors, (407), 231 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:45,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-18 15:11:45,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:45,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:45,744 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:45,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:45,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1788351764, now seen corresponding path program 1 times [2024-11-18 15:11:45,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:45,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132647021] [2024-11-18 15:11:45,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:45,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:46,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:46,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:46,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132647021] [2024-11-18 15:11:46,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132647021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:46,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:46,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:11:46,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002634567] [2024-11-18 15:11:46,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:46,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:11:46,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:46,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:11:46,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:11:46,853 INFO L87 Difference]: Start difference. First operand has 232 states, 230 states have (on average 1.7695652173913043) internal successors, (407), 231 states have internal predecessors, (407), 0 states have call successors, (0), 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 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:47,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:47,753 INFO L93 Difference]: Finished difference Result 1848 states and 2971 transitions. [2024-11-18 15:11:47,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 15:11:47,757 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-11-18 15:11:47,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:47,779 INFO L225 Difference]: With dead ends: 1848 [2024-11-18 15:11:47,779 INFO L226 Difference]: Without dead ends: 1706 [2024-11-18 15:11:47,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-18 15:11:47,791 INFO L432 NwaCegarLoop]: 1004 mSDtfsCounter, 3832 mSDsluCounter, 7254 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3832 SdHoareTripleChecker+Valid, 8258 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:47,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3832 Valid, 8258 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:11:47,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2024-11-18 15:11:47,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 349. [2024-11-18 15:11:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.4396551724137931) internal successors, (501), 348 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 501 transitions. [2024-11-18 15:11:47,886 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 501 transitions. Word has length 125 [2024-11-18 15:11:47,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:47,887 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 501 transitions. [2024-11-18 15:11:47,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:47,888 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 501 transitions. [2024-11-18 15:11:47,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 15:11:47,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:47,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:47,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:11:47,891 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:47,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:47,892 INFO L85 PathProgramCache]: Analyzing trace with hash 649831019, now seen corresponding path program 1 times [2024-11-18 15:11:47,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:47,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043758846] [2024-11-18 15:11:47,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:47,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:48,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:48,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043758846] [2024-11-18 15:11:48,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043758846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:48,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:48,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:11:48,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392784450] [2024-11-18 15:11:48,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:48,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:11:48,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:48,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:11:48,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:11:48,338 INFO L87 Difference]: Start difference. First operand 349 states and 501 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:48,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:48,793 INFO L93 Difference]: Finished difference Result 1961 states and 3049 transitions. [2024-11-18 15:11:48,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:11:48,794 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 15:11:48,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:48,803 INFO L225 Difference]: With dead ends: 1961 [2024-11-18 15:11:48,804 INFO L226 Difference]: Without dead ends: 1781 [2024-11-18 15:11:48,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:11:48,808 INFO L432 NwaCegarLoop]: 958 mSDtfsCounter, 2716 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2716 SdHoareTripleChecker+Valid, 4491 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:48,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2716 Valid, 4491 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:11:48,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2024-11-18 15:11:48,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 553. [2024-11-18 15:11:48,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 552 states have (on average 1.4945652173913044) internal successors, (825), 552 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:48,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 825 transitions. [2024-11-18 15:11:48,869 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 825 transitions. Word has length 127 [2024-11-18 15:11:48,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:48,870 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 825 transitions. [2024-11-18 15:11:48,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:48,870 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 825 transitions. [2024-11-18 15:11:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 15:11:48,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:48,875 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:48,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:11:48,875 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:48,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:48,876 INFO L85 PathProgramCache]: Analyzing trace with hash -660885545, now seen corresponding path program 1 times [2024-11-18 15:11:48,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:48,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615247428] [2024-11-18 15:11:48,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:48,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:49,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:49,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:49,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615247428] [2024-11-18 15:11:49,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615247428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:49,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:49,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:11:49,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855972653] [2024-11-18 15:11:49,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:49,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:11:49,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:49,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:11:49,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:11:49,226 INFO L87 Difference]: Start difference. First operand 553 states and 825 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:49,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:49,657 INFO L93 Difference]: Finished difference Result 2165 states and 3373 transitions. [2024-11-18 15:11:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:11:49,658 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 15:11:49,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:49,668 INFO L225 Difference]: With dead ends: 2165 [2024-11-18 15:11:49,668 INFO L226 Difference]: Without dead ends: 1985 [2024-11-18 15:11:49,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:11:49,671 INFO L432 NwaCegarLoop]: 826 mSDtfsCounter, 2884 mSDsluCounter, 2694 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2884 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:49,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2884 Valid, 3520 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:11:49,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2024-11-18 15:11:49,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 841. [2024-11-18 15:11:49,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 840 states have (on average 1.526190476190476) internal successors, (1282), 840 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:49,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1282 transitions. [2024-11-18 15:11:49,702 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1282 transitions. Word has length 127 [2024-11-18 15:11:49,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:49,703 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1282 transitions. [2024-11-18 15:11:49,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:49,703 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1282 transitions. [2024-11-18 15:11:49,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 15:11:49,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:49,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:49,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:11:49,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:49,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:49,706 INFO L85 PathProgramCache]: Analyzing trace with hash -356396037, now seen corresponding path program 1 times [2024-11-18 15:11:49,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:49,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249822639] [2024-11-18 15:11:49,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:49,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:50,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:50,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249822639] [2024-11-18 15:11:50,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249822639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:50,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:50,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:11:50,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942533710] [2024-11-18 15:11:50,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:50,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:11:50,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:50,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:11:50,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:11:50,050 INFO L87 Difference]: Start difference. First operand 841 states and 1282 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:50,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:50,456 INFO L93 Difference]: Finished difference Result 2359 states and 3681 transitions. [2024-11-18 15:11:50,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:11:50,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 15:11:50,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:50,464 INFO L225 Difference]: With dead ends: 2359 [2024-11-18 15:11:50,465 INFO L226 Difference]: Without dead ends: 2179 [2024-11-18 15:11:50,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:11:50,468 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 3475 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3475 SdHoareTripleChecker+Valid, 3301 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:50,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3475 Valid, 3301 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:11:50,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2024-11-18 15:11:50,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 1035. [2024-11-18 15:11:50,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1034 states have (on average 1.5377176015473888) internal successors, (1590), 1034 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:50,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1590 transitions. [2024-11-18 15:11:50,503 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1590 transitions. Word has length 127 [2024-11-18 15:11:50,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:50,504 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1590 transitions. [2024-11-18 15:11:50,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:50,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1590 transitions. [2024-11-18 15:11:50,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 15:11:50,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:50,506 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:50,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:11:50,506 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:50,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:50,507 INFO L85 PathProgramCache]: Analyzing trace with hash 995442863, now seen corresponding path program 1 times [2024-11-18 15:11:50,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:50,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202088310] [2024-11-18 15:11:50,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:50,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:50,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:50,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202088310] [2024-11-18 15:11:50,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202088310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:50,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:50,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:11:50,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281646837] [2024-11-18 15:11:50,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:50,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:11:50,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:50,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:11:50,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:11:50,837 INFO L87 Difference]: Start difference. First operand 1035 states and 1590 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:51,201 INFO L93 Difference]: Finished difference Result 2548 states and 3981 transitions. [2024-11-18 15:11:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:11:51,201 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 15:11:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:51,210 INFO L225 Difference]: With dead ends: 2548 [2024-11-18 15:11:51,210 INFO L226 Difference]: Without dead ends: 2368 [2024-11-18 15:11:51,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:11:51,213 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 3799 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3799 SdHoareTripleChecker+Valid, 3290 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:51,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3799 Valid, 3290 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:11:51,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2024-11-18 15:11:51,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 1214. [2024-11-18 15:11:51,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 1213 states have (on average 1.5449299258037923) internal successors, (1874), 1213 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:51,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1874 transitions. [2024-11-18 15:11:51,252 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1874 transitions. Word has length 127 [2024-11-18 15:11:51,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:51,253 INFO L471 AbstractCegarLoop]: Abstraction has 1214 states and 1874 transitions. [2024-11-18 15:11:51,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:51,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1874 transitions. [2024-11-18 15:11:51,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 15:11:51,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:51,255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:51,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:11:51,256 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:51,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:51,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1485273227, now seen corresponding path program 1 times [2024-11-18 15:11:51,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:51,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987705218] [2024-11-18 15:11:51,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:51,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:51,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:51,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:51,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987705218] [2024-11-18 15:11:51,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987705218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:51,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:51,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:11:51,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346774489] [2024-11-18 15:11:51,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:51,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:11:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:51,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:11:51,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:11:51,580 INFO L87 Difference]: Start difference. First operand 1214 states and 1874 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:51,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:51,906 INFO L93 Difference]: Finished difference Result 2726 states and 4264 transitions. [2024-11-18 15:11:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:11:51,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 15:11:51,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:51,916 INFO L225 Difference]: With dead ends: 2726 [2024-11-18 15:11:51,916 INFO L226 Difference]: Without dead ends: 2546 [2024-11-18 15:11:51,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:11:51,918 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 3938 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3938 SdHoareTripleChecker+Valid, 3153 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:51,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3938 Valid, 3153 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:11:51,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2024-11-18 15:11:51,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1392. [2024-11-18 15:11:51,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 1.5506829618979152) internal successors, (2157), 1391 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:51,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 2157 transitions. [2024-11-18 15:11:51,978 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 2157 transitions. Word has length 127 [2024-11-18 15:11:51,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:51,978 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 2157 transitions. [2024-11-18 15:11:51,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:51,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 2157 transitions. [2024-11-18 15:11:51,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 15:11:51,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:51,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:51,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:11:51,981 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:51,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:51,981 INFO L85 PathProgramCache]: Analyzing trace with hash 808098494, now seen corresponding path program 1 times [2024-11-18 15:11:51,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:51,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480658181] [2024-11-18 15:11:51,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:51,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:52,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:52,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:52,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480658181] [2024-11-18 15:11:52,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480658181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:52,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:52,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:11:52,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193609762] [2024-11-18 15:11:52,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:52,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:11:52,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:52,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:11:52,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:11:52,686 INFO L87 Difference]: Start difference. First operand 1392 states and 2157 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:53,172 INFO L93 Difference]: Finished difference Result 2553 states and 3999 transitions. [2024-11-18 15:11:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:11:53,173 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 15:11:53,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:53,178 INFO L225 Difference]: With dead ends: 2553 [2024-11-18 15:11:53,178 INFO L226 Difference]: Without dead ends: 1394 [2024-11-18 15:11:53,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-18 15:11:53,183 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 1274 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:53,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 1593 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:11:53,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-11-18 15:11:53,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1392. [2024-11-18 15:11:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 1.5456506110711719) internal successors, (2150), 1391 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:53,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 2150 transitions. [2024-11-18 15:11:53,206 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 2150 transitions. Word has length 127 [2024-11-18 15:11:53,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:53,207 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 2150 transitions. [2024-11-18 15:11:53,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:53,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 2150 transitions. [2024-11-18 15:11:53,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 15:11:53,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:53,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:53,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:11:53,209 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:53,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:53,209 INFO L85 PathProgramCache]: Analyzing trace with hash 528748287, now seen corresponding path program 1 times [2024-11-18 15:11:53,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:53,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835964296] [2024-11-18 15:11:53,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:53,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:53,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:53,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:53,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835964296] [2024-11-18 15:11:53,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835964296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:53,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:53,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:11:53,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855864765] [2024-11-18 15:11:53,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:53,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:11:53,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:53,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:11:53,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:11:53,312 INFO L87 Difference]: Start difference. First operand 1392 states and 2150 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:53,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:53,345 INFO L93 Difference]: Finished difference Result 3626 states and 5677 transitions. [2024-11-18 15:11:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:11:53,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 15:11:53,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:53,353 INFO L225 Difference]: With dead ends: 3626 [2024-11-18 15:11:53,353 INFO L226 Difference]: Without dead ends: 2467 [2024-11-18 15:11:53,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:11:53,355 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 131 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:53,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 736 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:11:53,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2467 states. [2024-11-18 15:11:53,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2467 to 2465. [2024-11-18 15:11:53,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2464 states have (on average 1.5487012987012987) internal successors, (3816), 2464 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:53,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3816 transitions. [2024-11-18 15:11:53,438 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3816 transitions. Word has length 127 [2024-11-18 15:11:53,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:53,439 INFO L471 AbstractCegarLoop]: Abstraction has 2465 states and 3816 transitions. [2024-11-18 15:11:53,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:53,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3816 transitions. [2024-11-18 15:11:53,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 15:11:53,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:53,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:53,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:11:53,441 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:53,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:53,441 INFO L85 PathProgramCache]: Analyzing trace with hash -19934321, now seen corresponding path program 1 times [2024-11-18 15:11:53,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:53,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121862231] [2024-11-18 15:11:53,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:53,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:53,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:53,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121862231] [2024-11-18 15:11:53,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121862231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:53,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:53,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:11:53,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848677545] [2024-11-18 15:11:53,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:53,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:11:53,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:53,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:11:53,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:11:53,690 INFO L87 Difference]: Start difference. First operand 2465 states and 3816 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:54,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:54,010 INFO L93 Difference]: Finished difference Result 5298 states and 8255 transitions. [2024-11-18 15:11:54,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:11:54,011 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 15:11:54,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:54,027 INFO L225 Difference]: With dead ends: 5298 [2024-11-18 15:11:54,027 INFO L226 Difference]: Without dead ends: 4953 [2024-11-18 15:11:54,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:11:54,030 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 2943 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2943 SdHoareTripleChecker+Valid, 3509 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:54,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2943 Valid, 3509 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:11:54,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4953 states. [2024-11-18 15:11:54,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4953 to 2814. [2024-11-18 15:11:54,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2813 states have (on average 1.5510131532172058) internal successors, (4363), 2813 states have internal predecessors, (4363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:54,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 4363 transitions. [2024-11-18 15:11:54,107 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 4363 transitions. Word has length 127 [2024-11-18 15:11:54,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:54,107 INFO L471 AbstractCegarLoop]: Abstraction has 2814 states and 4363 transitions. [2024-11-18 15:11:54,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:54,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 4363 transitions. [2024-11-18 15:11:54,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 15:11:54,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:54,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:54,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:11:54,110 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:54,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:54,110 INFO L85 PathProgramCache]: Analyzing trace with hash -2122526909, now seen corresponding path program 1 times [2024-11-18 15:11:54,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:54,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011895115] [2024-11-18 15:11:54,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:54,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:54,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:54,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:54,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011895115] [2024-11-18 15:11:54,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011895115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:54,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:54,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:11:54,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956261166] [2024-11-18 15:11:54,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:54,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:11:54,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:54,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:11:54,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:11:54,370 INFO L87 Difference]: Start difference. First operand 2814 states and 4363 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:54,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:54,742 INFO L93 Difference]: Finished difference Result 5647 states and 8802 transitions. [2024-11-18 15:11:54,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:11:54,743 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 15:11:54,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:54,759 INFO L225 Difference]: With dead ends: 5647 [2024-11-18 15:11:54,759 INFO L226 Difference]: Without dead ends: 5302 [2024-11-18 15:11:54,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:11:54,761 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 3046 mSDsluCounter, 3700 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 4277 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:54,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3046 Valid, 4277 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:11:54,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2024-11-18 15:11:54,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 3168. [2024-11-18 15:11:54,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3168 states, 3167 states have (on average 1.552889169561099) internal successors, (4918), 3167 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:54,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 4918 transitions. [2024-11-18 15:11:54,818 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 4918 transitions. Word has length 127 [2024-11-18 15:11:54,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:54,819 INFO L471 AbstractCegarLoop]: Abstraction has 3168 states and 4918 transitions. [2024-11-18 15:11:54,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:54,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 4918 transitions. [2024-11-18 15:11:54,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 15:11:54,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:54,821 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:54,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:11:54,821 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:54,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:54,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1885363609, now seen corresponding path program 1 times [2024-11-18 15:11:54,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:54,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636027733] [2024-11-18 15:11:54,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:54,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:55,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:55,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:55,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636027733] [2024-11-18 15:11:55,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636027733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:55,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:55,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 15:11:55,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791234594] [2024-11-18 15:11:55,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:55,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:11:55,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:55,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:11:55,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:11:55,114 INFO L87 Difference]: Start difference. First operand 3168 states and 4918 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:55,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:55,555 INFO L93 Difference]: Finished difference Result 6011 states and 9373 transitions. [2024-11-18 15:11:55,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 15:11:55,556 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 15:11:55,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:55,567 INFO L225 Difference]: With dead ends: 6011 [2024-11-18 15:11:55,567 INFO L226 Difference]: Without dead ends: 5666 [2024-11-18 15:11:55,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:11:55,570 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 3377 mSDsluCounter, 4130 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 4615 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:55,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 4615 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:11:55,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5666 states. [2024-11-18 15:11:55,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5666 to 3537. [2024-11-18 15:11:55,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3536 states have (on average 1.554581447963801) internal successors, (5497), 3536 states have internal predecessors, (5497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:55,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 5497 transitions. [2024-11-18 15:11:55,662 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 5497 transitions. Word has length 127 [2024-11-18 15:11:55,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:55,663 INFO L471 AbstractCegarLoop]: Abstraction has 3537 states and 5497 transitions. [2024-11-18 15:11:55,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:55,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 5497 transitions. [2024-11-18 15:11:55,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-18 15:11:55,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:55,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:55,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:11:55,666 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:55,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:55,667 INFO L85 PathProgramCache]: Analyzing trace with hash -720659575, now seen corresponding path program 1 times [2024-11-18 15:11:55,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:55,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853967683] [2024-11-18 15:11:55,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:55,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:55,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:55,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:55,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853967683] [2024-11-18 15:11:55,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853967683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:55,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:55,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:11:55,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600731877] [2024-11-18 15:11:55,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:55,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:11:55,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:55,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:11:55,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:11:55,844 INFO L87 Difference]: Start difference. First operand 3537 states and 5497 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:56,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:56,136 INFO L93 Difference]: Finished difference Result 10400 states and 16247 transitions. [2024-11-18 15:11:56,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:11:56,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-18 15:11:56,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:56,149 INFO L225 Difference]: With dead ends: 10400 [2024-11-18 15:11:56,149 INFO L226 Difference]: Without dead ends: 6931 [2024-11-18 15:11:56,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:11:56,155 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1235 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:56,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 272 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:11:56,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6931 states. [2024-11-18 15:11:56,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6931 to 6929. [2024-11-18 15:11:56,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.5558602771362586) internal successors, (10779), 6928 states have internal predecessors, (10779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:56,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10779 transitions. [2024-11-18 15:11:56,270 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10779 transitions. Word has length 128 [2024-11-18 15:11:56,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:56,270 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10779 transitions. [2024-11-18 15:11:56,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:56,271 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10779 transitions. [2024-11-18 15:11:56,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-18 15:11:56,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:56,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:56,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 15:11:56,274 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:56,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:56,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1179042837, now seen corresponding path program 1 times [2024-11-18 15:11:56,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:56,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959311358] [2024-11-18 15:11:56,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:56,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:56,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:56,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:56,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959311358] [2024-11-18 15:11:56,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959311358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:56,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:56,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:11:56,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065333325] [2024-11-18 15:11:56,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:56,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:11:56,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:56,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:11:56,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:11:56,470 INFO L87 Difference]: Start difference. First operand 6929 states and 10779 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:56,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:56,665 INFO L93 Difference]: Finished difference Result 13774 states and 21470 transitions. [2024-11-18 15:11:56,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:11:56,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-11-18 15:11:56,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:56,679 INFO L225 Difference]: With dead ends: 13774 [2024-11-18 15:11:56,679 INFO L226 Difference]: Without dead ends: 6929 [2024-11-18 15:11:56,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:11:56,690 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 803 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:56,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 204 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:11:56,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-18 15:11:56,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-18 15:11:56,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.5447459584295613) internal successors, (10702), 6928 states have internal predecessors, (10702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:56,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10702 transitions. [2024-11-18 15:11:56,794 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10702 transitions. Word has length 129 [2024-11-18 15:11:56,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:56,794 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10702 transitions. [2024-11-18 15:11:56,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:56,795 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10702 transitions. [2024-11-18 15:11:56,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 15:11:56,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:56,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:56,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 15:11:56,797 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:56,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:56,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1042803447, now seen corresponding path program 1 times [2024-11-18 15:11:56,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:56,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513875351] [2024-11-18 15:11:56,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:56,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:56,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:56,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513875351] [2024-11-18 15:11:56,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513875351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:56,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:56,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:11:56,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10001010] [2024-11-18 15:11:56,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:56,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:11:56,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:56,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:11:56,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:11:56,945 INFO L87 Difference]: Start difference. First operand 6929 states and 10702 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:57,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:57,133 INFO L93 Difference]: Finished difference Result 13762 states and 21302 transitions. [2024-11-18 15:11:57,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:11:57,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-18 15:11:57,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:57,145 INFO L225 Difference]: With dead ends: 13762 [2024-11-18 15:11:57,145 INFO L226 Difference]: Without dead ends: 6929 [2024-11-18 15:11:57,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:11:57,171 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 764 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:57,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 232 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:11:57,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-18 15:11:57,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-18 15:11:57,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.5336316397228638) internal successors, (10625), 6928 states have internal predecessors, (10625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10625 transitions. [2024-11-18 15:11:57,359 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10625 transitions. Word has length 130 [2024-11-18 15:11:57,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:57,359 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10625 transitions. [2024-11-18 15:11:57,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:57,360 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10625 transitions. [2024-11-18 15:11:57,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-18 15:11:57,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:57,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:57,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 15:11:57,362 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:57,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:57,363 INFO L85 PathProgramCache]: Analyzing trace with hash 2141096073, now seen corresponding path program 1 times [2024-11-18 15:11:57,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:57,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587434566] [2024-11-18 15:11:57,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:57,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:57,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:57,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:57,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587434566] [2024-11-18 15:11:57,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587434566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:57,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:57,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:11:57,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329190226] [2024-11-18 15:11:57,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:57,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:11:57,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:57,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:11:57,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:11:57,501 INFO L87 Difference]: Start difference. First operand 6929 states and 10625 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:57,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:57,679 INFO L93 Difference]: Finished difference Result 13766 states and 21153 transitions. [2024-11-18 15:11:57,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:11:57,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-11-18 15:11:57,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:57,691 INFO L225 Difference]: With dead ends: 13766 [2024-11-18 15:11:57,691 INFO L226 Difference]: Without dead ends: 6929 [2024-11-18 15:11:57,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:11:57,702 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 768 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:57,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 220 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:11:57,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-18 15:11:57,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-18 15:11:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.5225173210161662) internal successors, (10548), 6928 states have internal predecessors, (10548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:57,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10548 transitions. [2024-11-18 15:11:57,795 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10548 transitions. Word has length 131 [2024-11-18 15:11:57,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:57,795 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10548 transitions. [2024-11-18 15:11:57,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:57,796 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10548 transitions. [2024-11-18 15:11:57,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 15:11:57,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:57,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:57,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 15:11:57,798 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:57,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:57,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1933723773, now seen corresponding path program 1 times [2024-11-18 15:11:57,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:57,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770962386] [2024-11-18 15:11:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:57,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:57,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:57,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770962386] [2024-11-18 15:11:57,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770962386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:57,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:57,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:11:57,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164566916] [2024-11-18 15:11:57,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:57,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:11:57,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:57,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:11:57,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:11:57,929 INFO L87 Difference]: Start difference. First operand 6929 states and 10548 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:58,152 INFO L93 Difference]: Finished difference Result 13778 states and 21013 transitions. [2024-11-18 15:11:58,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:11:58,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-11-18 15:11:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:58,163 INFO L225 Difference]: With dead ends: 13778 [2024-11-18 15:11:58,164 INFO L226 Difference]: Without dead ends: 6929 [2024-11-18 15:11:58,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:11:58,171 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 796 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:58,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 196 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:11:58,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-18 15:11:58,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-18 15:11:58,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.511403002309469) internal successors, (10471), 6928 states have internal predecessors, (10471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:58,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10471 transitions. [2024-11-18 15:11:58,260 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10471 transitions. Word has length 132 [2024-11-18 15:11:58,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:58,260 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10471 transitions. [2024-11-18 15:11:58,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:58,261 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10471 transitions. [2024-11-18 15:11:58,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 15:11:58,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:58,263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:58,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 15:11:58,263 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:58,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:58,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1022574443, now seen corresponding path program 1 times [2024-11-18 15:11:58,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:58,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496807591] [2024-11-18 15:11:58,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:58,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:58,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:58,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:58,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496807591] [2024-11-18 15:11:58,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496807591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:58,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:58,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:11:58,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215672903] [2024-11-18 15:11:58,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:58,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:11:58,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:58,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:11:58,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:11:58,389 INFO L87 Difference]: Start difference. First operand 6929 states and 10471 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:58,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:58,553 INFO L93 Difference]: Finished difference Result 13786 states and 20869 transitions. [2024-11-18 15:11:58,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:11:58,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-11-18 15:11:58,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:58,565 INFO L225 Difference]: With dead ends: 13786 [2024-11-18 15:11:58,565 INFO L226 Difference]: Without dead ends: 6929 [2024-11-18 15:11:58,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:11:58,576 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 812 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:58,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 180 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:11:58,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-18 15:11:58,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-18 15:11:58,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.5002886836027713) internal successors, (10394), 6928 states have internal predecessors, (10394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:58,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10394 transitions. [2024-11-18 15:11:58,662 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10394 transitions. Word has length 133 [2024-11-18 15:11:58,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:58,662 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10394 transitions. [2024-11-18 15:11:58,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:58,663 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10394 transitions. [2024-11-18 15:11:58,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:11:58,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:58,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:58,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 15:11:58,665 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:58,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:58,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1152057475, now seen corresponding path program 1 times [2024-11-18 15:11:58,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:58,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842696148] [2024-11-18 15:11:58,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:58,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:58,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:58,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:58,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842696148] [2024-11-18 15:11:58,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842696148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:58,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:58,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:11:58,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591555757] [2024-11-18 15:11:58,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:58,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:11:58,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:58,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:11:58,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:11:58,838 INFO L87 Difference]: Start difference. First operand 6929 states and 10394 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:59,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:59,041 INFO L93 Difference]: Finished difference Result 13782 states and 20711 transitions. [2024-11-18 15:11:59,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:11:59,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-18 15:11:59,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:59,058 INFO L225 Difference]: With dead ends: 13782 [2024-11-18 15:11:59,058 INFO L226 Difference]: Without dead ends: 6929 [2024-11-18 15:11:59,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:11:59,069 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 794 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:59,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 188 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:11:59,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-18 15:11:59,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-18 15:11:59,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.4891743648960738) internal successors, (10317), 6928 states have internal predecessors, (10317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10317 transitions. [2024-11-18 15:11:59,200 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10317 transitions. Word has length 134 [2024-11-18 15:11:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:59,201 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10317 transitions. [2024-11-18 15:11:59,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:59,201 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10317 transitions. [2024-11-18 15:11:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-18 15:11:59,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:59,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:59,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 15:11:59,204 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:59,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:59,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1585245791, now seen corresponding path program 1 times [2024-11-18 15:11:59,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:59,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330762467] [2024-11-18 15:11:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:59,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:59,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:59,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:59,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330762467] [2024-11-18 15:11:59,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330762467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:59,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:59,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:11:59,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146679508] [2024-11-18 15:11:59,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:59,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:11:59,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:59,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:11:59,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:11:59,382 INFO L87 Difference]: Start difference. First operand 6929 states and 10317 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:59,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:59,586 INFO L93 Difference]: Finished difference Result 13770 states and 20545 transitions. [2024-11-18 15:11:59,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:11:59,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-11-18 15:11:59,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:59,598 INFO L225 Difference]: With dead ends: 13770 [2024-11-18 15:11:59,598 INFO L226 Difference]: Without dead ends: 6929 [2024-11-18 15:11:59,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:11:59,608 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 752 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:59,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 212 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:11:59,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-18 15:11:59,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-18 15:11:59,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.4780600461893765) internal successors, (10240), 6928 states have internal predecessors, (10240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:59,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10240 transitions. [2024-11-18 15:11:59,732 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10240 transitions. Word has length 135 [2024-11-18 15:11:59,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:59,732 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10240 transitions. [2024-11-18 15:11:59,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:59,733 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10240 transitions. [2024-11-18 15:11:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-18 15:11:59,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:59,735 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:59,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 15:11:59,735 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:59,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:59,737 INFO L85 PathProgramCache]: Analyzing trace with hash -939512999, now seen corresponding path program 1 times [2024-11-18 15:11:59,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:59,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463294038] [2024-11-18 15:11:59,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:59,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:00,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:00,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:00,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463294038] [2024-11-18 15:12:00,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463294038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:00,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:00,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:12:00,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267492964] [2024-11-18 15:12:00,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:00,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:12:00,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:00,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:12:00,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:00,167 INFO L87 Difference]: Start difference. First operand 6929 states and 10240 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:00,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:00,211 INFO L93 Difference]: Finished difference Result 6967 states and 10295 transitions. [2024-11-18 15:12:00,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:12:00,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-18 15:12:00,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:00,220 INFO L225 Difference]: With dead ends: 6967 [2024-11-18 15:12:00,221 INFO L226 Difference]: Without dead ends: 6965 [2024-11-18 15:12:00,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:12:00,223 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 0 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:00,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1157 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:12:00,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2024-11-18 15:12:00,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 6965. [2024-11-18 15:12:00,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4727168294083859) internal successors, (10256), 6964 states have internal predecessors, (10256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:00,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10256 transitions. [2024-11-18 15:12:00,377 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10256 transitions. Word has length 136 [2024-11-18 15:12:00,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:00,377 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10256 transitions. [2024-11-18 15:12:00,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:00,377 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10256 transitions. [2024-11-18 15:12:00,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-18 15:12:00,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:00,380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:00,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 15:12:00,380 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:00,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:00,381 INFO L85 PathProgramCache]: Analyzing trace with hash -738604843, now seen corresponding path program 1 times [2024-11-18 15:12:00,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:00,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317231452] [2024-11-18 15:12:00,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:00,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:00,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:00,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317231452] [2024-11-18 15:12:00,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317231452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:00,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:00,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 15:12:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563859913] [2024-11-18 15:12:00,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:00,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:00,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:00,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:00,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:00,971 INFO L87 Difference]: Start difference. First operand 6965 states and 10256 transitions. Second operand has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:01,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:01,763 INFO L93 Difference]: Finished difference Result 20324 states and 29888 transitions. [2024-11-18 15:12:01,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:12:01,764 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-18 15:12:01,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:01,786 INFO L225 Difference]: With dead ends: 20324 [2024-11-18 15:12:01,786 INFO L226 Difference]: Without dead ends: 13753 [2024-11-18 15:12:01,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:01,798 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1714 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:01,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 876 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:12:01,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13753 states. [2024-11-18 15:12:01,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13753 to 6965. [2024-11-18 15:12:01,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4705628948879954) internal successors, (10241), 6964 states have internal predecessors, (10241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:01,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10241 transitions. [2024-11-18 15:12:01,926 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10241 transitions. Word has length 136 [2024-11-18 15:12:01,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:01,926 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10241 transitions. [2024-11-18 15:12:01,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:01,927 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10241 transitions. [2024-11-18 15:12:01,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 15:12:01,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:01,929 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:01,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 15:12:01,929 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:01,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:01,930 INFO L85 PathProgramCache]: Analyzing trace with hash -395821450, now seen corresponding path program 1 times [2024-11-18 15:12:01,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:01,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909132413] [2024-11-18 15:12:01,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:01,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:02,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:02,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:02,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909132413] [2024-11-18 15:12:02,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909132413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:02,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:02,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:12:02,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129834022] [2024-11-18 15:12:02,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:02,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:02,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:02,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:02,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:02,367 INFO L87 Difference]: Start difference. First operand 6965 states and 10241 transitions. Second operand has 10 states, 10 states have (on average 13.7) internal successors, (137), 9 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:02,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:02,951 INFO L93 Difference]: Finished difference Result 17310 states and 25423 transitions. [2024-11-18 15:12:02,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:12:02,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 9 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-18 15:12:02,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:02,963 INFO L225 Difference]: With dead ends: 17310 [2024-11-18 15:12:02,964 INFO L226 Difference]: Without dead ends: 10529 [2024-11-18 15:12:02,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:12:02,972 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1301 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:02,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 787 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:12:02,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10529 states. [2024-11-18 15:12:03,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10529 to 6965. [2024-11-18 15:12:03,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4701321079839174) internal successors, (10238), 6964 states have internal predecessors, (10238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:03,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10238 transitions. [2024-11-18 15:12:03,092 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10238 transitions. Word has length 137 [2024-11-18 15:12:03,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:03,093 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10238 transitions. [2024-11-18 15:12:03,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 9 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:03,093 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10238 transitions. [2024-11-18 15:12:03,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 15:12:03,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:03,097 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:03,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 15:12:03,097 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:03,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:03,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1471402126, now seen corresponding path program 1 times [2024-11-18 15:12:03,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:03,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919104694] [2024-11-18 15:12:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:03,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:03,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:03,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:03,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919104694] [2024-11-18 15:12:03,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919104694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:03,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:03,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 15:12:03,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819404165] [2024-11-18 15:12:03,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:03,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:03,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:03,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:03,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:03,601 INFO L87 Difference]: Start difference. First operand 6965 states and 10238 transitions. Second operand has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 12 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:04,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:04,433 INFO L93 Difference]: Finished difference Result 20544 states and 30196 transitions. [2024-11-18 15:12:04,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:12:04,434 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 12 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-18 15:12:04,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:04,452 INFO L225 Difference]: With dead ends: 20544 [2024-11-18 15:12:04,452 INFO L226 Difference]: Without dead ends: 13853 [2024-11-18 15:12:04,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:04,462 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 883 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:04,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 985 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:12:04,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13853 states. [2024-11-18 15:12:04,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13853 to 6965. [2024-11-18 15:12:04,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4685525560022976) internal successors, (10227), 6964 states have internal predecessors, (10227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:04,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10227 transitions. [2024-11-18 15:12:04,580 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10227 transitions. Word has length 137 [2024-11-18 15:12:04,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:04,580 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10227 transitions. [2024-11-18 15:12:04,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 12 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:04,581 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10227 transitions. [2024-11-18 15:12:04,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 15:12:04,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:04,583 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:04,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 15:12:04,583 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:04,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:04,583 INFO L85 PathProgramCache]: Analyzing trace with hash -484651705, now seen corresponding path program 1 times [2024-11-18 15:12:04,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:04,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910181217] [2024-11-18 15:12:04,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:04,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:05,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:05,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910181217] [2024-11-18 15:12:05,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910181217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:05,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:05,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 15:12:05,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887532156] [2024-11-18 15:12:05,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:05,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:05,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:05,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:05,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:05,088 INFO L87 Difference]: Start difference. First operand 6965 states and 10227 transitions. Second operand has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:06,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:06,155 INFO L93 Difference]: Finished difference Result 20444 states and 30025 transitions. [2024-11-18 15:12:06,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:12:06,155 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 15:12:06,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:06,173 INFO L225 Difference]: With dead ends: 20444 [2024-11-18 15:12:06,173 INFO L226 Difference]: Without dead ends: 13808 [2024-11-18 15:12:06,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:06,184 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 633 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:06,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1707 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:12:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13808 states. [2024-11-18 15:12:06,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13808 to 6965. [2024-11-18 15:12:06,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4666858127512923) internal successors, (10214), 6964 states have internal predecessors, (10214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10214 transitions. [2024-11-18 15:12:06,393 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10214 transitions. Word has length 138 [2024-11-18 15:12:06,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:06,394 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10214 transitions. [2024-11-18 15:12:06,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10214 transitions. [2024-11-18 15:12:06,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-18 15:12:06,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:06,397 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:06,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 15:12:06,397 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:06,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:06,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1102502929, now seen corresponding path program 1 times [2024-11-18 15:12:06,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:06,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115253823] [2024-11-18 15:12:06,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:06,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:06,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:06,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:06,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115253823] [2024-11-18 15:12:06,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115253823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:06,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:06,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 15:12:06,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260793100] [2024-11-18 15:12:06,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:06,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:12:06,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:06,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:12:06,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:12:06,981 INFO L87 Difference]: Start difference. First operand 6965 states and 10214 transitions. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:07,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:07,518 INFO L93 Difference]: Finished difference Result 20210 states and 29749 transitions. [2024-11-18 15:12:07,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:12:07,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2024-11-18 15:12:07,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:07,534 INFO L225 Difference]: With dead ends: 20210 [2024-11-18 15:12:07,535 INFO L226 Difference]: Without dead ends: 13521 [2024-11-18 15:12:07,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-18 15:12:07,543 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1202 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:07,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 891 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:12:07,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13521 states. [2024-11-18 15:12:07,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13521 to 6965. [2024-11-18 15:12:07,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4665422171165996) internal successors, (10213), 6964 states have internal predecessors, (10213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:07,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10213 transitions. [2024-11-18 15:12:07,679 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10213 transitions. Word has length 139 [2024-11-18 15:12:07,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:07,680 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10213 transitions. [2024-11-18 15:12:07,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:07,680 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10213 transitions. [2024-11-18 15:12:07,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 15:12:07,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:07,685 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:07,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 15:12:07,685 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:07,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:07,686 INFO L85 PathProgramCache]: Analyzing trace with hash -549443807, now seen corresponding path program 1 times [2024-11-18 15:12:07,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:07,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386771762] [2024-11-18 15:12:07,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:07,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:08,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:08,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:08,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386771762] [2024-11-18 15:12:08,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386771762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:08,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:08,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:12:08,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626410981] [2024-11-18 15:12:08,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:08,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:08,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:08,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:08,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:08,038 INFO L87 Difference]: Start difference. First operand 6965 states and 10213 transitions. Second operand has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:08,508 INFO L93 Difference]: Finished difference Result 20500 states and 30078 transitions. [2024-11-18 15:12:08,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:12:08,509 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-11-18 15:12:08,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:08,522 INFO L225 Difference]: With dead ends: 20500 [2024-11-18 15:12:08,522 INFO L226 Difference]: Without dead ends: 13944 [2024-11-18 15:12:08,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:12:08,530 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 759 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:08,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 858 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:12:08,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13944 states. [2024-11-18 15:12:08,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13944 to 7016. [2024-11-18 15:12:08,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 7015 states have (on average 1.4655737704918033) internal successors, (10281), 7015 states have internal predecessors, (10281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 10281 transitions. [2024-11-18 15:12:08,658 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 10281 transitions. Word has length 140 [2024-11-18 15:12:08,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:08,659 INFO L471 AbstractCegarLoop]: Abstraction has 7016 states and 10281 transitions. [2024-11-18 15:12:08,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,659 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 10281 transitions. [2024-11-18 15:12:08,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 15:12:08,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:08,661 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:08,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 15:12:08,661 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:08,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:08,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1239275984, now seen corresponding path program 1 times [2024-11-18 15:12:08,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:08,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844637997] [2024-11-18 15:12:08,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:08,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:08,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:08,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:08,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844637997] [2024-11-18 15:12:08,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844637997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:08,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:08,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:12:08,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977183798] [2024-11-18 15:12:08,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:08,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:12:08,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:08,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:12:08,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:12:08,797 INFO L87 Difference]: Start difference. First operand 7016 states and 10281 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:08,855 INFO L93 Difference]: Finished difference Result 19824 states and 29247 transitions. [2024-11-18 15:12:08,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:12:08,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-18 15:12:08,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:08,872 INFO L225 Difference]: With dead ends: 19824 [2024-11-18 15:12:08,873 INFO L226 Difference]: Without dead ends: 13268 [2024-11-18 15:12:08,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:12:08,882 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 152 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 638 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 [2024-11-18 15:12:08,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 638 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:12:08,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13268 states. [2024-11-18 15:12:08,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13268 to 12962. [2024-11-18 15:12:08,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12962 states, 12961 states have (on average 1.4619242342411851) internal successors, (18948), 12961 states have internal predecessors, (18948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12962 states to 12962 states and 18948 transitions. [2024-11-18 15:12:08,998 INFO L78 Accepts]: Start accepts. Automaton has 12962 states and 18948 transitions. Word has length 141 [2024-11-18 15:12:08,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:08,998 INFO L471 AbstractCegarLoop]: Abstraction has 12962 states and 18948 transitions. [2024-11-18 15:12:08,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:08,998 INFO L276 IsEmpty]: Start isEmpty. Operand 12962 states and 18948 transitions. [2024-11-18 15:12:08,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 15:12:09,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:09,000 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:09,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 15:12:09,000 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:09,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:09,000 INFO L85 PathProgramCache]: Analyzing trace with hash -503207952, now seen corresponding path program 1 times [2024-11-18 15:12:09,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:09,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506756637] [2024-11-18 15:12:09,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:09,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:09,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:09,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:09,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506756637] [2024-11-18 15:12:09,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506756637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:09,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:09,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 15:12:09,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971806177] [2024-11-18 15:12:09,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:09,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:09,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:09,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:09,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:09,705 INFO L87 Difference]: Start difference. First operand 12962 states and 18948 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:11,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:11,265 INFO L93 Difference]: Finished difference Result 79303 states and 115718 transitions. [2024-11-18 15:12:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 15:12:11,265 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-18 15:12:11,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:11,339 INFO L225 Difference]: With dead ends: 79303 [2024-11-18 15:12:11,340 INFO L226 Difference]: Without dead ends: 66546 [2024-11-18 15:12:11,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2024-11-18 15:12:11,366 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 2211 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 2289 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:11,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 2289 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 15:12:11,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66546 states. [2024-11-18 15:12:11,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66546 to 12971. [2024-11-18 15:12:11,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12971 states, 12970 states have (on average 1.461372397841172) internal successors, (18954), 12970 states have internal predecessors, (18954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:11,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12971 states to 12971 states and 18954 transitions. [2024-11-18 15:12:11,731 INFO L78 Accepts]: Start accepts. Automaton has 12971 states and 18954 transitions. Word has length 141 [2024-11-18 15:12:11,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:11,731 INFO L471 AbstractCegarLoop]: Abstraction has 12971 states and 18954 transitions. [2024-11-18 15:12:11,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:11,732 INFO L276 IsEmpty]: Start isEmpty. Operand 12971 states and 18954 transitions. [2024-11-18 15:12:11,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 15:12:11,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:11,734 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:11,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 15:12:11,734 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:11,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:11,734 INFO L85 PathProgramCache]: Analyzing trace with hash 274274780, now seen corresponding path program 1 times [2024-11-18 15:12:11,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:11,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195106367] [2024-11-18 15:12:11,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:11,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:12,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:12,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195106367] [2024-11-18 15:12:12,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195106367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:12,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:12,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:12:12,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614679995] [2024-11-18 15:12:12,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:12,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:12,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:12,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:12,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:12,093 INFO L87 Difference]: Start difference. First operand 12971 states and 18954 transitions. Second operand has 10 states, 10 states have (on average 14.2) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:12,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:12,605 INFO L93 Difference]: Finished difference Result 38759 states and 56602 transitions. [2024-11-18 15:12:12,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:12:12,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-11-18 15:12:12,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:12,634 INFO L225 Difference]: With dead ends: 38759 [2024-11-18 15:12:12,634 INFO L226 Difference]: Without dead ends: 26032 [2024-11-18 15:12:12,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:12:12,654 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 748 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:12,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 914 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:12:12,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26032 states. [2024-11-18 15:12:12,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26032 to 12971. [2024-11-18 15:12:12,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12971 states, 12970 states have (on average 1.4606784888203546) internal successors, (18945), 12970 states have internal predecessors, (18945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:12,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12971 states to 12971 states and 18945 transitions. [2024-11-18 15:12:12,895 INFO L78 Accepts]: Start accepts. Automaton has 12971 states and 18945 transitions. Word has length 142 [2024-11-18 15:12:12,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:12,896 INFO L471 AbstractCegarLoop]: Abstraction has 12971 states and 18945 transitions. [2024-11-18 15:12:12,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:12,896 INFO L276 IsEmpty]: Start isEmpty. Operand 12971 states and 18945 transitions. [2024-11-18 15:12:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:12,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:12,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:12,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 15:12:12,898 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:12,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:12,899 INFO L85 PathProgramCache]: Analyzing trace with hash -22724613, now seen corresponding path program 1 times [2024-11-18 15:12:12,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:12,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007695295] [2024-11-18 15:12:12,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:12,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:13,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:13,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:13,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007695295] [2024-11-18 15:12:13,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007695295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:13,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:13,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:12:13,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506381309] [2024-11-18 15:12:13,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:13,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:13,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:13,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:13,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:13,662 INFO L87 Difference]: Start difference. First operand 12971 states and 18945 transitions. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:14,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:14,350 INFO L93 Difference]: Finished difference Result 28353 states and 41499 transitions. [2024-11-18 15:12:14,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:12:14,351 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-18 15:12:14,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:14,380 INFO L225 Difference]: With dead ends: 28353 [2024-11-18 15:12:14,380 INFO L226 Difference]: Without dead ends: 25623 [2024-11-18 15:12:14,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:14,391 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 1068 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:14,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 2494 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:14,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25623 states. [2024-11-18 15:12:14,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25623 to 12918. [2024-11-18 15:12:14,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12918 states, 12917 states have (on average 1.4607106913369978) internal successors, (18868), 12917 states have internal predecessors, (18868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:14,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12918 states to 12918 states and 18868 transitions. [2024-11-18 15:12:14,584 INFO L78 Accepts]: Start accepts. Automaton has 12918 states and 18868 transitions. Word has length 143 [2024-11-18 15:12:14,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:14,584 INFO L471 AbstractCegarLoop]: Abstraction has 12918 states and 18868 transitions. [2024-11-18 15:12:14,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 12918 states and 18868 transitions. [2024-11-18 15:12:14,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:14,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:14,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:14,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 15:12:14,586 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:14,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:14,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1765865703, now seen corresponding path program 1 times [2024-11-18 15:12:14,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:14,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44864972] [2024-11-18 15:12:14,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:14,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:15,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:15,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:15,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44864972] [2024-11-18 15:12:15,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44864972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:15,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:15,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:12:15,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701008954] [2024-11-18 15:12:15,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:15,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:15,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:15,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:15,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:15,584 INFO L87 Difference]: Start difference. First operand 12918 states and 18868 transitions. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:16,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:16,319 INFO L93 Difference]: Finished difference Result 28206 states and 41290 transitions. [2024-11-18 15:12:16,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:12:16,320 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-18 15:12:16,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:16,361 INFO L225 Difference]: With dead ends: 28206 [2024-11-18 15:12:16,361 INFO L226 Difference]: Without dead ends: 25536 [2024-11-18 15:12:16,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:16,373 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1222 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:16,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 2548 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25536 states. [2024-11-18 15:12:16,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25536 to 12900. [2024-11-18 15:12:16,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12900 states, 12899 states have (on average 1.4601907124583302) internal successors, (18835), 12899 states have internal predecessors, (18835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12900 states to 12900 states and 18835 transitions. [2024-11-18 15:12:16,565 INFO L78 Accepts]: Start accepts. Automaton has 12900 states and 18835 transitions. Word has length 143 [2024-11-18 15:12:16,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:16,565 INFO L471 AbstractCegarLoop]: Abstraction has 12900 states and 18835 transitions. [2024-11-18 15:12:16,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:16,566 INFO L276 IsEmpty]: Start isEmpty. Operand 12900 states and 18835 transitions. [2024-11-18 15:12:16,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:16,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:16,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:16,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 15:12:16,568 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:16,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:16,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2082755259, now seen corresponding path program 1 times [2024-11-18 15:12:16,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:16,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545065577] [2024-11-18 15:12:16,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:16,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:17,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:17,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:17,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545065577] [2024-11-18 15:12:17,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545065577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:17,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:17,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 15:12:17,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918321512] [2024-11-18 15:12:17,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:17,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 15:12:17,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:17,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 15:12:17,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-18 15:12:17,383 INFO L87 Difference]: Start difference. First operand 12900 states and 18835 transitions. Second operand has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:18,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:18,432 INFO L93 Difference]: Finished difference Result 53235 states and 77996 transitions. [2024-11-18 15:12:18,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 15:12:18,433 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-18 15:12:18,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:18,490 INFO L225 Difference]: With dead ends: 53235 [2024-11-18 15:12:18,490 INFO L226 Difference]: Without dead ends: 50585 [2024-11-18 15:12:18,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-18 15:12:18,510 INFO L432 NwaCegarLoop]: 639 mSDtfsCounter, 1208 mSDsluCounter, 4076 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 4715 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:18,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 4715 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:12:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50585 states. [2024-11-18 15:12:18,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50585 to 12892. [2024-11-18 15:12:18,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12892 states, 12891 states have (on average 1.4596229927856643) internal successors, (18816), 12891 states have internal predecessors, (18816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:18,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12892 states to 12892 states and 18816 transitions. [2024-11-18 15:12:18,798 INFO L78 Accepts]: Start accepts. Automaton has 12892 states and 18816 transitions. Word has length 143 [2024-11-18 15:12:18,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:18,798 INFO L471 AbstractCegarLoop]: Abstraction has 12892 states and 18816 transitions. [2024-11-18 15:12:18,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:18,799 INFO L276 IsEmpty]: Start isEmpty. Operand 12892 states and 18816 transitions. [2024-11-18 15:12:18,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:18,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:18,800 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:18,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 15:12:18,800 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:18,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:18,801 INFO L85 PathProgramCache]: Analyzing trace with hash -549225923, now seen corresponding path program 1 times [2024-11-18 15:12:18,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:18,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489659744] [2024-11-18 15:12:18,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:18,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:19,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:19,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489659744] [2024-11-18 15:12:19,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489659744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:19,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:19,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 15:12:19,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539735333] [2024-11-18 15:12:19,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:19,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 15:12:19,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:19,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 15:12:19,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-18 15:12:19,517 INFO L87 Difference]: Start difference. First operand 12892 states and 18816 transitions. Second operand has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:20,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:20,184 INFO L93 Difference]: Finished difference Result 53384 states and 78170 transitions. [2024-11-18 15:12:20,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 15:12:20,184 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-18 15:12:20,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:20,240 INFO L225 Difference]: With dead ends: 53384 [2024-11-18 15:12:20,240 INFO L226 Difference]: Without dead ends: 50694 [2024-11-18 15:12:20,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-18 15:12:20,259 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 1730 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:20,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 3148 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50694 states. [2024-11-18 15:12:20,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50694 to 12864. [2024-11-18 15:12:20,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12864 states, 12863 states have (on average 1.4596128430381714) internal successors, (18775), 12863 states have internal predecessors, (18775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:20,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12864 states to 12864 states and 18775 transitions. [2024-11-18 15:12:20,604 INFO L78 Accepts]: Start accepts. Automaton has 12864 states and 18775 transitions. Word has length 143 [2024-11-18 15:12:20,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:20,604 INFO L471 AbstractCegarLoop]: Abstraction has 12864 states and 18775 transitions. [2024-11-18 15:12:20,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:20,605 INFO L276 IsEmpty]: Start isEmpty. Operand 12864 states and 18775 transitions. [2024-11-18 15:12:20,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:20,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:20,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:20,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 15:12:20,606 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:20,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:20,607 INFO L85 PathProgramCache]: Analyzing trace with hash 971465022, now seen corresponding path program 1 times [2024-11-18 15:12:20,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:20,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580903609] [2024-11-18 15:12:20,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:20,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:21,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:21,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580903609] [2024-11-18 15:12:21,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580903609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:21,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:21,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 15:12:21,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268279496] [2024-11-18 15:12:21,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:21,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 15:12:21,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:21,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 15:12:21,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-18 15:12:21,341 INFO L87 Difference]: Start difference. First operand 12864 states and 18775 transitions. Second operand has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:22,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:22,093 INFO L93 Difference]: Finished difference Result 53395 states and 78179 transitions. [2024-11-18 15:12:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 15:12:22,094 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-18 15:12:22,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:22,149 INFO L225 Difference]: With dead ends: 53395 [2024-11-18 15:12:22,150 INFO L226 Difference]: Without dead ends: 50685 [2024-11-18 15:12:22,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-18 15:12:22,169 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 1233 mSDsluCounter, 5119 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:22,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 5814 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:12:22,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50685 states. [2024-11-18 15:12:22,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50685 to 12807. [2024-11-18 15:12:22,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12807 states, 12806 states have (on average 1.4604872715914414) internal successors, (18703), 12806 states have internal predecessors, (18703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:22,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12807 states to 12807 states and 18703 transitions. [2024-11-18 15:12:22,453 INFO L78 Accepts]: Start accepts. Automaton has 12807 states and 18703 transitions. Word has length 143 [2024-11-18 15:12:22,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:22,453 INFO L471 AbstractCegarLoop]: Abstraction has 12807 states and 18703 transitions. [2024-11-18 15:12:22,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:22,454 INFO L276 IsEmpty]: Start isEmpty. Operand 12807 states and 18703 transitions. [2024-11-18 15:12:22,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:22,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:22,455 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:22,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 15:12:22,455 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:22,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:22,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1604250176, now seen corresponding path program 1 times [2024-11-18 15:12:22,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:22,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173564563] [2024-11-18 15:12:22,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:22,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:23,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:23,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:23,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173564563] [2024-11-18 15:12:23,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173564563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:23,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:23,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:12:23,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741539034] [2024-11-18 15:12:23,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:23,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:12:23,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:23,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:12:23,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:12:23,133 INFO L87 Difference]: Start difference. First operand 12807 states and 18703 transitions. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:23,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:23,660 INFO L93 Difference]: Finished difference Result 16759 states and 24505 transitions. [2024-11-18 15:12:23,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:12:23,661 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-18 15:12:23,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:23,674 INFO L225 Difference]: With dead ends: 16759 [2024-11-18 15:12:23,674 INFO L226 Difference]: Without dead ends: 14038 [2024-11-18 15:12:23,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:12:23,680 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 1285 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:23,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 2503 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:12:23,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14038 states. [2024-11-18 15:12:23,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14038 to 12720. [2024-11-18 15:12:23,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12720 states, 12719 states have (on average 1.4622218727887413) internal successors, (18598), 12719 states have internal predecessors, (18598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12720 states to 12720 states and 18598 transitions. [2024-11-18 15:12:23,792 INFO L78 Accepts]: Start accepts. Automaton has 12720 states and 18598 transitions. Word has length 143 [2024-11-18 15:12:23,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:23,792 INFO L471 AbstractCegarLoop]: Abstraction has 12720 states and 18598 transitions. [2024-11-18 15:12:23,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:23,792 INFO L276 IsEmpty]: Start isEmpty. Operand 12720 states and 18598 transitions. [2024-11-18 15:12:23,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:23,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:23,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:23,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-18 15:12:23,793 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:23,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:23,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1017602881, now seen corresponding path program 1 times [2024-11-18 15:12:23,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:23,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341678034] [2024-11-18 15:12:23,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:23,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:28,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:28,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341678034] [2024-11-18 15:12:28,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341678034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:28,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:28,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2024-11-18 15:12:28,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565150465] [2024-11-18 15:12:28,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:28,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-18 15:12:28,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:28,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-18 15:12:28,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=2479, Unknown=0, NotChecked=0, Total=2652 [2024-11-18 15:12:28,939 INFO L87 Difference]: Start difference. First operand 12720 states and 18598 transitions. Second operand has 52 states, 52 states have (on average 2.75) internal successors, (143), 52 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:42,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:42,702 INFO L93 Difference]: Finished difference Result 23386 states and 34185 transitions. [2024-11-18 15:12:42,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-18 15:12:42,703 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.75) internal successors, (143), 52 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-18 15:12:42,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:42,727 INFO L225 Difference]: With dead ends: 23386 [2024-11-18 15:12:42,727 INFO L226 Difference]: Without dead ends: 22068 [2024-11-18 15:12:42,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1409 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=1413, Invalid=8289, Unknown=0, NotChecked=0, Total=9702 [2024-11-18 15:12:42,738 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 4281 mSDsluCounter, 17645 mSDsCounter, 0 mSdLazyCounter, 13798 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 18321 SdHoareTripleChecker+Invalid, 13821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 13798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:42,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4281 Valid, 18321 Invalid, 13821 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 13798 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-18 15:12:42,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22068 states. [2024-11-18 15:12:42,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22068 to 12743. [2024-11-18 15:12:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12743 states, 12742 states have (on average 1.4618584209700205) internal successors, (18627), 12742 states have internal predecessors, (18627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12743 states to 12743 states and 18627 transitions. [2024-11-18 15:12:42,894 INFO L78 Accepts]: Start accepts. Automaton has 12743 states and 18627 transitions. Word has length 143 [2024-11-18 15:12:42,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:42,895 INFO L471 AbstractCegarLoop]: Abstraction has 12743 states and 18627 transitions. [2024-11-18 15:12:42,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.75) internal successors, (143), 52 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:42,895 INFO L276 IsEmpty]: Start isEmpty. Operand 12743 states and 18627 transitions. [2024-11-18 15:12:42,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 15:12:42,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:42,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:42,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 15:12:42,896 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:42,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:42,897 INFO L85 PathProgramCache]: Analyzing trace with hash 984650235, now seen corresponding path program 1 times [2024-11-18 15:12:42,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:42,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854048997] [2024-11-18 15:12:42,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:42,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:43,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:43,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:43,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854048997] [2024-11-18 15:12:43,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854048997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:43,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:43,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:12:43,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298678500] [2024-11-18 15:12:43,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:43,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:12:43,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:43,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:12:43,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:12:43,204 INFO L87 Difference]: Start difference. First operand 12743 states and 18627 transitions. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:43,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:43,813 INFO L93 Difference]: Finished difference Result 38200 states and 55820 transitions. [2024-11-18 15:12:43,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:12:43,813 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-18 15:12:43,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:43,840 INFO L225 Difference]: With dead ends: 38200 [2024-11-18 15:12:43,840 INFO L226 Difference]: Without dead ends: 25626 [2024-11-18 15:12:43,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:12:43,854 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 614 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:43,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1202 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:12:43,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25626 states. [2024-11-18 15:12:43,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25626 to 12737. [2024-11-18 15:12:44,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12737 states, 12736 states have (on average 1.4618404522613064) internal successors, (18618), 12736 states have internal predecessors, (18618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:44,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12737 states to 12737 states and 18618 transitions. [2024-11-18 15:12:44,012 INFO L78 Accepts]: Start accepts. Automaton has 12737 states and 18618 transitions. Word has length 143 [2024-11-18 15:12:44,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:44,012 INFO L471 AbstractCegarLoop]: Abstraction has 12737 states and 18618 transitions. [2024-11-18 15:12:44,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 12737 states and 18618 transitions. [2024-11-18 15:12:44,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-18 15:12:44,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:44,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:44,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-18 15:12:44,013 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:44,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:44,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1678065761, now seen corresponding path program 1 times [2024-11-18 15:12:44,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:44,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037774515] [2024-11-18 15:12:44,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:44,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:44,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:44,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:44,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037774515] [2024-11-18 15:12:44,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037774515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:44,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:44,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:12:44,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038133100] [2024-11-18 15:12:44,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:44,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 15:12:44,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:44,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 15:12:44,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 15:12:44,183 INFO L87 Difference]: Start difference. First operand 12737 states and 18618 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:44,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:12:44,248 INFO L93 Difference]: Finished difference Result 30967 states and 45402 transitions. [2024-11-18 15:12:44,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:12:44,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-11-18 15:12:44,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:12:44,263 INFO L225 Difference]: With dead ends: 30967 [2024-11-18 15:12:44,263 INFO L226 Difference]: Without dead ends: 18465 [2024-11-18 15:12:44,272 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 [2024-11-18 15:12:44,272 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 133 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:12:44,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 779 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:12:44,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18465 states. [2024-11-18 15:12:44,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18465 to 18463. [2024-11-18 15:12:44,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18463 states, 18462 states have (on average 1.4588885277868053) internal successors, (26934), 18462 states have internal predecessors, (26934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18463 states to 18463 states and 26934 transitions. [2024-11-18 15:12:44,462 INFO L78 Accepts]: Start accepts. Automaton has 18463 states and 26934 transitions. Word has length 144 [2024-11-18 15:12:44,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:12:44,463 INFO L471 AbstractCegarLoop]: Abstraction has 18463 states and 26934 transitions. [2024-11-18 15:12:44,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:12:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 18463 states and 26934 transitions. [2024-11-18 15:12:44,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-18 15:12:44,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:12:44,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:12:44,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-18 15:12:44,464 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:12:44,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:12:44,465 INFO L85 PathProgramCache]: Analyzing trace with hash -234548188, now seen corresponding path program 1 times [2024-11-18 15:12:44,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:12:44,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637261569] [2024-11-18 15:12:44,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:12:44,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:12:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:12:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:12:48,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:12:48,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637261569] [2024-11-18 15:12:48,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637261569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:12:48,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:12:48,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2024-11-18 15:12:48,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472981094] [2024-11-18 15:12:48,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:12:48,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-18 15:12:48,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:12:48,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-18 15:12:48,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=2385, Unknown=0, NotChecked=0, Total=2550 [2024-11-18 15:12:48,875 INFO L87 Difference]: Start difference. First operand 18463 states and 26934 transitions. Second operand has 51 states, 51 states have (on average 2.823529411764706) internal successors, (144), 51 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)