./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.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/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.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 65aa760b31ea5e49c4bb5ba7f2fb3b1e4951bce7653ba384d4ba0c02ae0acea3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:12:45,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:12:45,294 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 16:12:45,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:12:45,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:12:45,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:12:45,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:12:45,321 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:12:45,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:12:45,322 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:12:45,323 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:12:45,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:12:45,323 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:12:45,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:12:45,325 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:12:45,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:12:45,325 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:12:45,325 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:12:45,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:12:45,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:12:45,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:12:45,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:12:45,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:12:45,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:12:45,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:12:45,328 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:12:45,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:12:45,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:12:45,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:12:45,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:12:45,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:12:45,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:12:45,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:12:45,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:12:45,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:12:45,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:12:45,330 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:12:45,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:12:45,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:12:45,330 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:12:45,331 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:12:45,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:12:45,331 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65aa760b31ea5e49c4bb5ba7f2fb3b1e4951bce7653ba384d4ba0c02ae0acea3 [2024-11-18 16:12:45,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:12:45,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:12:45,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:12:45,535 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:12:45,536 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:12:45,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-18 16:12:46,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:12:47,113 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:12:47,114 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-18 16:12:47,147 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77b1e3615/d5723d64f7b3487190cf42af8e423352/FLAG56c60fc6d [2024-11-18 16:12:47,160 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77b1e3615/d5723d64f7b3487190cf42af8e423352 [2024-11-18 16:12:47,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:12:47,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:12:47,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:12:47,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:12:47,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:12:47,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:12:47" (1/1) ... [2024-11-18 16:12:47,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df97e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:47, skipping insertion in model container [2024-11-18 16:12:47,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:12:47" (1/1) ... [2024-11-18 16:12:47,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:12:47,638 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/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[20528,20541] [2024-11-18 16:12:47,695 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/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[27464,27477] [2024-11-18 16:12:48,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:12:48,156 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:12:48,186 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/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[20528,20541] [2024-11-18 16:12:48,194 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/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[27464,27477] [2024-11-18 16:12:48,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:12:48,483 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:12:48,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48 WrapperNode [2024-11-18 16:12:48,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:12:48,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:12:48,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:12:48,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:12:48,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:48,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:48,758 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5217 [2024-11-18 16:12:48,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:12:48,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:12:48,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:12:48,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:12:48,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:48,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:48,811 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:48,984 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 16:12:48,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:48,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:49,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:49,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:49,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:49,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:49,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:12:49,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:12:49,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:12:49,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:12:49,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (1/1) ... [2024-11-18 16:12:49,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:12:49,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:12:49,233 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 16:12:49,235 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 16:12:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:12:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:12:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:12:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:12:49,367 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:12:49,368 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:12:52,598 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-11-18 16:12:52,598 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:12:52,631 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:12:52,633 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 16:12:52,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:12:52 BoogieIcfgContainer [2024-11-18 16:12:52,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:12:52,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:12:52,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:12:52,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:12:52,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:12:47" (1/3) ... [2024-11-18 16:12:52,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115407f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:12:52, skipping insertion in model container [2024-11-18 16:12:52,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:48" (2/3) ... [2024-11-18 16:12:52,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115407f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:12:52, skipping insertion in model container [2024-11-18 16:12:52,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:12:52" (3/3) ... [2024-11-18 16:12:52,643 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-18 16:12:52,658 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:12:52,658 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:12:52,726 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:12:52,731 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;@660a6ae6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:12:52,732 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:12:52,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 930 states, 927 states have (on average 1.9039913700107876) internal successors, (1765), 929 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states 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 16:12:52,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 16:12:52,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:12:52,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:12:52,747 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:12:52,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:12:52,753 INFO L85 PathProgramCache]: Analyzing trace with hash 495960789, now seen corresponding path program 1 times [2024-11-18 16:12:52,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:12:52,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087704233] [2024-11-18 16:12:52,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:12:52,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:12:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:12:53,098 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 16:12:53,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:12:53,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087704233] [2024-11-18 16:12:53,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087704233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:12:53,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:12:53,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:12:53,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204201411] [2024-11-18 16:12:53,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:12:53,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 16:12:53,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:12:53,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 16:12:53,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 16:12:53,152 INFO L87 Difference]: Start difference. First operand has 930 states, 927 states have (on average 1.9039913700107876) internal successors, (1765), 929 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:12:53,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:12:53,273 INFO L93 Difference]: Finished difference Result 1802 states and 3420 transitions. [2024-11-18 16:12:53,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 16:12:53,281 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-18 16:12:53,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:12:53,304 INFO L225 Difference]: With dead ends: 1802 [2024-11-18 16:12:53,309 INFO L226 Difference]: Without dead ends: 864 [2024-11-18 16:12:53,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 16:12:53,328 INFO L432 NwaCegarLoop]: 1696 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:12:53,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:12:53,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-18 16:12:53,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2024-11-18 16:12:53,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 862 states have (on average 1.8932714617169373) internal successors, (1632), 863 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states 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 16:12:53,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1632 transitions. [2024-11-18 16:12:53,396 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1632 transitions. Word has length 28 [2024-11-18 16:12:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:12:53,396 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1632 transitions. [2024-11-18 16:12:53,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:12:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1632 transitions. [2024-11-18 16:12:53,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 16:12:53,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:12:53,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:12:53,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:12:53,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:12:53,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:12:53,399 INFO L85 PathProgramCache]: Analyzing trace with hash 714815507, now seen corresponding path program 1 times [2024-11-18 16:12:53,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:12:53,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580108109] [2024-11-18 16:12:53,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:12:53,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:12:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:12:53,588 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 16:12:53,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:12:53,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580108109] [2024-11-18 16:12:53,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580108109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:12:53,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:12:53,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:12:53,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865632112] [2024-11-18 16:12:53,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:12:53,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:12:53,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:12:53,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:12:53,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:12:53,593 INFO L87 Difference]: Start difference. First operand 864 states and 1632 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:12:53,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:12:53,711 INFO L93 Difference]: Finished difference Result 922 states and 1723 transitions. [2024-11-18 16:12:53,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:12:53,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-18 16:12:53,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:12:53,715 INFO L225 Difference]: With dead ends: 922 [2024-11-18 16:12:53,715 INFO L226 Difference]: Without dead ends: 864 [2024-11-18 16:12:53,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:12:53,716 INFO L432 NwaCegarLoop]: 1630 mSDtfsCounter, 0 mSDsluCounter, 4835 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6465 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:12:53,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6465 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:12:53,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-18 16:12:53,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2024-11-18 16:12:53,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 862 states have (on average 1.8352668213457077) internal successors, (1582), 863 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states 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 16:12:53,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1582 transitions. [2024-11-18 16:12:53,735 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1582 transitions. Word has length 28 [2024-11-18 16:12:53,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:12:53,736 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1582 transitions. [2024-11-18 16:12:53,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:12:53,736 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1582 transitions. [2024-11-18 16:12:53,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-18 16:12:53,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:12:53,740 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] [2024-11-18 16:12:53,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:12:53,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:12:53,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:12:53,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1438669637, now seen corresponding path program 1 times [2024-11-18 16:12:53,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:12:53,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622826653] [2024-11-18 16:12:53,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:12:53,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:12:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:12:53,915 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 16:12:53,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:12:53,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622826653] [2024-11-18 16:12:53,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622826653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:12:53,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:12:53,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:12:53,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976016598] [2024-11-18 16:12:53,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:12:53,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:12:53,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:12:53,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:12:53,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:12:53,917 INFO L87 Difference]: Start difference. First operand 864 states and 1582 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 16:12:58,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:12:58,863 INFO L93 Difference]: Finished difference Result 3119 states and 5891 transitions. [2024-11-18 16:12:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:12:58,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-18 16:12:58,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:12:58,872 INFO L225 Difference]: With dead ends: 3119 [2024-11-18 16:12:58,873 INFO L226 Difference]: Without dead ends: 2366 [2024-11-18 16:12:58,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:12:58,874 INFO L432 NwaCegarLoop]: 836 mSDtfsCounter, 2467 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5518 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 6618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-18 16:12:58,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 854 Invalid, 6618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 5518 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-18 16:12:58,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2024-11-18 16:12:58,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2366. [2024-11-18 16:12:58,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 2364 states have (on average 1.5685279187817258) internal successors, (3708), 2365 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states 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 16:12:58,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 3708 transitions. [2024-11-18 16:12:58,914 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 3708 transitions. Word has length 60 [2024-11-18 16:12:58,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:12:58,915 INFO L471 AbstractCegarLoop]: Abstraction has 2366 states and 3708 transitions. [2024-11-18 16:12:58,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 16:12:58,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 3708 transitions. [2024-11-18 16:12:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 16:12:58,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:12:58,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:12:58,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:12:58,917 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:12:58,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:12:58,917 INFO L85 PathProgramCache]: Analyzing trace with hash -585081934, now seen corresponding path program 1 times [2024-11-18 16:12:58,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:12:58,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633009013] [2024-11-18 16:12:58,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:12:58,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:12:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:12:59,226 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 16:12:59,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:12:59,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633009013] [2024-11-18 16:12:59,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633009013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:12:59,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:12:59,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 16:12:59,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940116192] [2024-11-18 16:12:59,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:12:59,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 16:12:59,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:12:59,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 16:12:59,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:12:59,255 INFO L87 Difference]: Start difference. First operand 2366 states and 3708 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:12:59,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:12:59,583 INFO L93 Difference]: Finished difference Result 3122 states and 4926 transitions. [2024-11-18 16:12:59,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 16:12:59,584 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-18 16:12:59,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:12:59,592 INFO L225 Difference]: With dead ends: 3122 [2024-11-18 16:12:59,592 INFO L226 Difference]: Without dead ends: 3068 [2024-11-18 16:12:59,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-18 16:12:59,594 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 11503 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11503 SdHoareTripleChecker+Valid, 5134 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:12:59,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11503 Valid, 5134 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:12:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2024-11-18 16:12:59,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2418. [2024-11-18 16:12:59,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 2416 states have (on average 1.5695364238410596) internal successors, (3792), 2417 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states 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 16:12:59,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3792 transitions. [2024-11-18 16:12:59,630 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3792 transitions. Word has length 77 [2024-11-18 16:12:59,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:12:59,631 INFO L471 AbstractCegarLoop]: Abstraction has 2418 states and 3792 transitions. [2024-11-18 16:12:59,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:12:59,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3792 transitions. [2024-11-18 16:12:59,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:12:59,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:12:59,632 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] [2024-11-18 16:12:59,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:12:59,632 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:12:59,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:12:59,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1038714270, now seen corresponding path program 1 times [2024-11-18 16:12:59,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:12:59,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763288817] [2024-11-18 16:12:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:12:59,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:12:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:12:59,717 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 16:12:59,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:12:59,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763288817] [2024-11-18 16:12:59,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763288817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:12:59,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:12:59,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:12:59,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781278107] [2024-11-18 16:12:59,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:12:59,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:12:59,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:12:59,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:12:59,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:12:59,719 INFO L87 Difference]: Start difference. First operand 2418 states and 3792 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 16:12:59,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:12:59,760 INFO L93 Difference]: Finished difference Result 2619 states and 4115 transitions. [2024-11-18 16:12:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:12:59,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-18 16:12:59,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:12:59,769 INFO L225 Difference]: With dead ends: 2619 [2024-11-18 16:12:59,770 INFO L226 Difference]: Without dead ends: 2513 [2024-11-18 16:12:59,771 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 16:12:59,772 INFO L432 NwaCegarLoop]: 1580 mSDtfsCounter, 1498 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:12:59,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1662 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:12:59,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2024-11-18 16:12:59,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2511. [2024-11-18 16:12:59,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2509 states have (on average 1.570346751693902) internal successors, (3940), 2510 states have internal predecessors, (3940), 0 states have call successors, (0), 0 states 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 16:12:59,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3940 transitions. [2024-11-18 16:12:59,812 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3940 transitions. Word has length 79 [2024-11-18 16:12:59,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:12:59,813 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 3940 transitions. [2024-11-18 16:12:59,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 16:12:59,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3940 transitions. [2024-11-18 16:12:59,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:12:59,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:12:59,814 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] [2024-11-18 16:12:59,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:12:59,814 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:12:59,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:12:59,815 INFO L85 PathProgramCache]: Analyzing trace with hash -972220758, now seen corresponding path program 1 times [2024-11-18 16:12:59,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:12:59,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187772358] [2024-11-18 16:12:59,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:12:59,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:12:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:00,123 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 16:13:00,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:00,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187772358] [2024-11-18 16:13:00,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187772358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:00,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:00,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 16:13:00,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308096921] [2024-11-18 16:13:00,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:00,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 16:13:00,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:00,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 16:13:00,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:13:00,125 INFO L87 Difference]: Start difference. First operand 2511 states and 3940 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 16:13:00,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:00,380 INFO L93 Difference]: Finished difference Result 2712 states and 4260 transitions. [2024-11-18 16:13:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:13:00,381 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-18 16:13:00,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:00,388 INFO L225 Difference]: With dead ends: 2712 [2024-11-18 16:13:00,388 INFO L226 Difference]: Without dead ends: 2513 [2024-11-18 16:13:00,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-18 16:13:00,389 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 7555 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7555 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:00,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7555 Valid, 2077 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:13:00,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2024-11-18 16:13:00,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2511. [2024-11-18 16:13:00,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2509 states have (on average 1.5695496213630928) internal successors, (3938), 2510 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states 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 16:13:00,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3938 transitions. [2024-11-18 16:13:00,421 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3938 transitions. Word has length 79 [2024-11-18 16:13:00,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:00,421 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 3938 transitions. [2024-11-18 16:13:00,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 16:13:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3938 transitions. [2024-11-18 16:13:00,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:13:00,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:00,422 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:00,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:13:00,423 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:00,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:00,423 INFO L85 PathProgramCache]: Analyzing trace with hash -488795339, now seen corresponding path program 1 times [2024-11-18 16:13:00,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:00,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180805513] [2024-11-18 16:13:00,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:00,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:00,628 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 16:13:00,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:00,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180805513] [2024-11-18 16:13:00,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180805513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:00,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:00,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:13:00,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553631659] [2024-11-18 16:13:00,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:00,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:13:00,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:00,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:13:00,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:13:00,631 INFO L87 Difference]: Start difference. First operand 2511 states and 3938 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:00,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:00,717 INFO L93 Difference]: Finished difference Result 2519 states and 3947 transitions. [2024-11-18 16:13:00,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:13:00,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-18 16:13:00,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:00,724 INFO L225 Difference]: With dead ends: 2519 [2024-11-18 16:13:00,725 INFO L226 Difference]: Without dead ends: 2517 [2024-11-18 16:13:00,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:13:00,726 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 0 mSDsluCounter, 9443 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11019 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:00,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11019 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:13:00,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2024-11-18 16:13:00,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2517. [2024-11-18 16:13:00,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2515 states have (on average 1.5677932405566601) internal successors, (3943), 2516 states have internal predecessors, (3943), 0 states have call successors, (0), 0 states 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 16:13:00,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3943 transitions. [2024-11-18 16:13:00,758 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3943 transitions. Word has length 80 [2024-11-18 16:13:00,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:00,758 INFO L471 AbstractCegarLoop]: Abstraction has 2517 states and 3943 transitions. [2024-11-18 16:13:00,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:00,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3943 transitions. [2024-11-18 16:13:00,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 16:13:00,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:00,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:00,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 16:13:00,760 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:00,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:00,760 INFO L85 PathProgramCache]: Analyzing trace with hash 295676394, now seen corresponding path program 1 times [2024-11-18 16:13:00,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:00,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277620122] [2024-11-18 16:13:00,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:00,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:00,804 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 16:13:00,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:00,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277620122] [2024-11-18 16:13:00,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277620122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:00,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:00,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:13:00,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116821771] [2024-11-18 16:13:00,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:00,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:13:00,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:00,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:13:00,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:13:00,807 INFO L87 Difference]: Start difference. First operand 2517 states and 3943 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:00,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:00,834 INFO L93 Difference]: Finished difference Result 2735 states and 4284 transitions. [2024-11-18 16:13:00,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:13:00,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-18 16:13:00,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:00,842 INFO L225 Difference]: With dead ends: 2735 [2024-11-18 16:13:00,842 INFO L226 Difference]: Without dead ends: 2623 [2024-11-18 16:13:00,843 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 16:13:00,844 INFO L432 NwaCegarLoop]: 1654 mSDtfsCounter, 1516 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:00,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1742 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:13:00,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2024-11-18 16:13:00,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2621. [2024-11-18 16:13:00,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2619 states have (on average 1.5670103092783505) internal successors, (4104), 2620 states have internal predecessors, (4104), 0 states have call successors, (0), 0 states 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 16:13:00,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 4104 transitions. [2024-11-18 16:13:00,881 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 4104 transitions. Word has length 81 [2024-11-18 16:13:00,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:00,881 INFO L471 AbstractCegarLoop]: Abstraction has 2621 states and 4104 transitions. [2024-11-18 16:13:00,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 4104 transitions. [2024-11-18 16:13:00,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 16:13:00,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:00,882 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:00,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 16:13:00,883 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:00,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash -2057221398, now seen corresponding path program 1 times [2024-11-18 16:13:00,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:00,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331498234] [2024-11-18 16:13:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:00,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:00,939 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 16:13:00,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:00,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331498234] [2024-11-18 16:13:00,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331498234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:00,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:00,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:13:00,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671391037] [2024-11-18 16:13:00,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:00,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:13:00,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:00,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:13:00,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:13:00,942 INFO L87 Difference]: Start difference. First operand 2621 states and 4104 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:00,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:00,969 INFO L93 Difference]: Finished difference Result 3211 states and 5024 transitions. [2024-11-18 16:13:00,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:13:00,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-18 16:13:00,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:00,977 INFO L225 Difference]: With dead ends: 3211 [2024-11-18 16:13:00,977 INFO L226 Difference]: Without dead ends: 2904 [2024-11-18 16:13:00,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:13:00,981 INFO L432 NwaCegarLoop]: 1656 mSDtfsCounter, 1514 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:00,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:13:00,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2024-11-18 16:13:01,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 2902. [2024-11-18 16:13:01,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2900 states have (on average 1.5641379310344827) internal successors, (4536), 2901 states have internal predecessors, (4536), 0 states have call successors, (0), 0 states 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 16:13:01,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 4536 transitions. [2024-11-18 16:13:01,019 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 4536 transitions. Word has length 81 [2024-11-18 16:13:01,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:01,019 INFO L471 AbstractCegarLoop]: Abstraction has 2902 states and 4536 transitions. [2024-11-18 16:13:01,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:01,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 4536 transitions. [2024-11-18 16:13:01,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 16:13:01,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:01,020 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:01,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 16:13:01,020 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:01,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1894306838, now seen corresponding path program 1 times [2024-11-18 16:13:01,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:01,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362875142] [2024-11-18 16:13:01,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:01,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:01,070 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 16:13:01,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:01,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362875142] [2024-11-18 16:13:01,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362875142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:01,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:01,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:13:01,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712433317] [2024-11-18 16:13:01,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:01,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:13:01,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:01,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:13:01,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:13:01,074 INFO L87 Difference]: Start difference. First operand 2902 states and 4536 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:01,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:01,111 INFO L93 Difference]: Finished difference Result 4030 states and 6278 transitions. [2024-11-18 16:13:01,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:13:01,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-18 16:13:01,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:01,123 INFO L225 Difference]: With dead ends: 4030 [2024-11-18 16:13:01,126 INFO L226 Difference]: Without dead ends: 3442 [2024-11-18 16:13:01,128 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 16:13:01,129 INFO L432 NwaCegarLoop]: 1654 mSDtfsCounter, 1512 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:01,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:13:01,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2024-11-18 16:13:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3440. [2024-11-18 16:13:01,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 1.556719022687609) internal successors, (5352), 3439 states have internal predecessors, (5352), 0 states have call successors, (0), 0 states 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 16:13:01,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 5352 transitions. [2024-11-18 16:13:01,188 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 5352 transitions. Word has length 81 [2024-11-18 16:13:01,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:01,188 INFO L471 AbstractCegarLoop]: Abstraction has 3440 states and 5352 transitions. [2024-11-18 16:13:01,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 5352 transitions. [2024-11-18 16:13:01,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 16:13:01,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:01,189 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:01,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 16:13:01,190 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:01,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:01,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1630450454, now seen corresponding path program 1 times [2024-11-18 16:13:01,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:01,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558793336] [2024-11-18 16:13:01,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:01,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:01,236 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 16:13:01,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:01,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558793336] [2024-11-18 16:13:01,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558793336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:01,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:01,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:13:01,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788855504] [2024-11-18 16:13:01,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:01,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:13:01,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:01,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:13:01,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:13:01,238 INFO L87 Difference]: Start difference. First operand 3440 states and 5352 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:01,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:01,288 INFO L93 Difference]: Finished difference Result 5596 states and 8642 transitions. [2024-11-18 16:13:01,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:13:01,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-18 16:13:01,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:01,302 INFO L225 Difference]: With dead ends: 5596 [2024-11-18 16:13:01,302 INFO L226 Difference]: Without dead ends: 4470 [2024-11-18 16:13:01,305 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 16:13:01,306 INFO L432 NwaCegarLoop]: 1652 mSDtfsCounter, 1510 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:01,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:13:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470 states. [2024-11-18 16:13:01,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 4468. [2024-11-18 16:13:01,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4468 states, 4466 states have (on average 1.542319749216301) internal successors, (6888), 4467 states have internal predecessors, (6888), 0 states have call successors, (0), 0 states 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 16:13:01,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4468 states to 4468 states and 6888 transitions. [2024-11-18 16:13:01,396 INFO L78 Accepts]: Start accepts. Automaton has 4468 states and 6888 transitions. Word has length 81 [2024-11-18 16:13:01,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:01,396 INFO L471 AbstractCegarLoop]: Abstraction has 4468 states and 6888 transitions. [2024-11-18 16:13:01,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:01,397 INFO L276 IsEmpty]: Start isEmpty. Operand 4468 states and 6888 transitions. [2024-11-18 16:13:01,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 16:13:01,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:01,397 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] [2024-11-18 16:13:01,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 16:13:01,398 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:01,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:01,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1687310058, now seen corresponding path program 1 times [2024-11-18 16:13:01,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:01,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791475265] [2024-11-18 16:13:01,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:01,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:01,453 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 16:13:01,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:01,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791475265] [2024-11-18 16:13:01,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791475265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:01,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:01,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:13:01,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411862736] [2024-11-18 16:13:01,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:01,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:13:01,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:01,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:13:01,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:13:01,456 INFO L87 Difference]: Start difference. First operand 4468 states and 6888 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:01,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:01,520 INFO L93 Difference]: Finished difference Result 8584 states and 13082 transitions. [2024-11-18 16:13:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:13:01,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-18 16:13:01,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:01,531 INFO L225 Difference]: With dead ends: 8584 [2024-11-18 16:13:01,532 INFO L226 Difference]: Without dead ends: 6430 [2024-11-18 16:13:01,536 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 16:13:01,536 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 1506 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:01,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:13:01,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6430 states. [2024-11-18 16:13:01,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6430 to 6428. [2024-11-18 16:13:01,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6428 states, 6426 states have (on average 1.5200746965452847) internal successors, (9768), 6427 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states 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 16:13:01,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6428 states to 6428 states and 9768 transitions. [2024-11-18 16:13:01,709 INFO L78 Accepts]: Start accepts. Automaton has 6428 states and 9768 transitions. Word has length 81 [2024-11-18 16:13:01,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:01,709 INFO L471 AbstractCegarLoop]: Abstraction has 6428 states and 9768 transitions. [2024-11-18 16:13:01,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:01,710 INFO L276 IsEmpty]: Start isEmpty. Operand 6428 states and 9768 transitions. [2024-11-18 16:13:01,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 16:13:01,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:01,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:01,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 16:13:01,711 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:01,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:01,712 INFO L85 PathProgramCache]: Analyzing trace with hash -826724374, now seen corresponding path program 1 times [2024-11-18 16:13:01,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:01,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053728192] [2024-11-18 16:13:01,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:01,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:01,772 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 16:13:01,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:01,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053728192] [2024-11-18 16:13:01,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053728192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:01,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:01,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:13:01,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425532754] [2024-11-18 16:13:01,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:01,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:13:01,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:01,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:13:01,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:13:01,775 INFO L87 Difference]: Start difference. First operand 6428 states and 9768 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:01,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:01,928 INFO L93 Difference]: Finished difference Result 14272 states and 21386 transitions. [2024-11-18 16:13:01,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:13:01,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-18 16:13:01,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:01,945 INFO L225 Difference]: With dead ends: 14272 [2024-11-18 16:13:01,945 INFO L226 Difference]: Without dead ends: 10158 [2024-11-18 16:13:01,953 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 16:13:01,954 INFO L432 NwaCegarLoop]: 1638 mSDtfsCounter, 1504 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:01,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:13:01,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10158 states. [2024-11-18 16:13:02,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10158 to 10156. [2024-11-18 16:13:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10156 states, 10154 states have (on average 1.4914319480007878) internal successors, (15144), 10155 states have internal predecessors, (15144), 0 states have call successors, (0), 0 states 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 16:13:02,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10156 states to 10156 states and 15144 transitions. [2024-11-18 16:13:02,193 INFO L78 Accepts]: Start accepts. Automaton has 10156 states and 15144 transitions. Word has length 81 [2024-11-18 16:13:02,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:02,193 INFO L471 AbstractCegarLoop]: Abstraction has 10156 states and 15144 transitions. [2024-11-18 16:13:02,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:02,194 INFO L276 IsEmpty]: Start isEmpty. Operand 10156 states and 15144 transitions. [2024-11-18 16:13:02,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 16:13:02,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:02,194 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:02,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 16:13:02,195 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:02,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:02,195 INFO L85 PathProgramCache]: Analyzing trace with hash -392188438, now seen corresponding path program 1 times [2024-11-18 16:13:02,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:02,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221604048] [2024-11-18 16:13:02,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:02,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:02,244 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 16:13:02,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:02,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221604048] [2024-11-18 16:13:02,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221604048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:02,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:02,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:13:02,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559310393] [2024-11-18 16:13:02,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:02,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:13:02,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:02,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:13:02,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:13:02,245 INFO L87 Difference]: Start difference. First operand 10156 states and 15144 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:02,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:02,420 INFO L93 Difference]: Finished difference Result 25072 states and 36842 transitions. [2024-11-18 16:13:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:13:02,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-18 16:13:02,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:02,446 INFO L225 Difference]: With dead ends: 25072 [2024-11-18 16:13:02,447 INFO L226 Difference]: Without dead ends: 17230 [2024-11-18 16:13:02,458 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 16:13:02,459 INFO L432 NwaCegarLoop]: 1650 mSDtfsCounter, 1508 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:02,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1754 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:13:02,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17230 states. [2024-11-18 16:13:02,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17230 to 17228. [2024-11-18 16:13:02,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17228 states, 17226 states have (on average 1.4587251828631138) internal successors, (25128), 17227 states have internal predecessors, (25128), 0 states have call successors, (0), 0 states 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 16:13:02,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17228 states to 17228 states and 25128 transitions. [2024-11-18 16:13:02,828 INFO L78 Accepts]: Start accepts. Automaton has 17228 states and 25128 transitions. Word has length 81 [2024-11-18 16:13:02,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:02,829 INFO L471 AbstractCegarLoop]: Abstraction has 17228 states and 25128 transitions. [2024-11-18 16:13:02,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:02,829 INFO L276 IsEmpty]: Start isEmpty. Operand 17228 states and 25128 transitions. [2024-11-18 16:13:02,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 16:13:02,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:02,834 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:02,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 16:13:02,834 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:02,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:02,834 INFO L85 PathProgramCache]: Analyzing trace with hash -730351122, now seen corresponding path program 1 times [2024-11-18 16:13:02,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:02,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958236569] [2024-11-18 16:13:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:02,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 16:13:03,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:03,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958236569] [2024-11-18 16:13:03,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958236569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:03,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:03,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 16:13:03,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75450401] [2024-11-18 16:13:03,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:03,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 16:13:03,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:03,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 16:13:03,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:13:03,034 INFO L87 Difference]: Start difference. First operand 17228 states and 25128 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 16:13:04,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:04,372 INFO L93 Difference]: Finished difference Result 120284 states and 173616 transitions. [2024-11-18 16:13:04,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:13:04,373 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 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 104 [2024-11-18 16:13:04,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:04,565 INFO L225 Difference]: With dead ends: 120284 [2024-11-18 16:13:04,565 INFO L226 Difference]: Without dead ends: 109786 [2024-11-18 16:13:04,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 16:13:04,597 INFO L432 NwaCegarLoop]: 1668 mSDtfsCounter, 9868 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9868 SdHoareTripleChecker+Valid, 4656 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:04,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9868 Valid, 4656 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:13:04,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109786 states. [2024-11-18 16:13:05,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109786 to 29964. [2024-11-18 16:13:05,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29964 states, 29962 states have (on average 1.4452973766771244) internal successors, (43304), 29963 states have internal predecessors, (43304), 0 states have call successors, (0), 0 states 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 16:13:05,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29964 states to 29964 states and 43304 transitions. [2024-11-18 16:13:05,978 INFO L78 Accepts]: Start accepts. Automaton has 29964 states and 43304 transitions. Word has length 104 [2024-11-18 16:13:05,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:05,979 INFO L471 AbstractCegarLoop]: Abstraction has 29964 states and 43304 transitions. [2024-11-18 16:13:05,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 16:13:05,979 INFO L276 IsEmpty]: Start isEmpty. Operand 29964 states and 43304 transitions. [2024-11-18 16:13:05,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 16:13:05,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:05,985 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:05,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 16:13:05,985 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:05,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:05,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1211718382, now seen corresponding path program 1 times [2024-11-18 16:13:05,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:05,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514637717] [2024-11-18 16:13:05,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:05,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:06,186 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 16:13:06,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:06,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514637717] [2024-11-18 16:13:06,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514637717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:06,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:06,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 16:13:06,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899865630] [2024-11-18 16:13:06,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:06,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 16:13:06,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:06,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 16:13:06,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:13:06,188 INFO L87 Difference]: Start difference. First operand 29964 states and 43304 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 16:13:08,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:08,419 INFO L93 Difference]: Finished difference Result 135196 states and 194992 transitions. [2024-11-18 16:13:08,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:13:08,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 104 [2024-11-18 16:13:08,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:08,651 INFO L225 Difference]: With dead ends: 135196 [2024-11-18 16:13:08,652 INFO L226 Difference]: Without dead ends: 120282 [2024-11-18 16:13:08,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 16:13:08,700 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 9868 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9868 SdHoareTripleChecker+Valid, 4639 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:08,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9868 Valid, 4639 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:13:08,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120282 states. [2024-11-18 16:13:10,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120282 to 50124. [2024-11-18 16:13:10,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50124 states, 50122 states have (on average 1.437293005067635) internal successors, (72040), 50123 states have internal predecessors, (72040), 0 states have call successors, (0), 0 states 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 16:13:10,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50124 states to 50124 states and 72040 transitions. [2024-11-18 16:13:10,418 INFO L78 Accepts]: Start accepts. Automaton has 50124 states and 72040 transitions. Word has length 104 [2024-11-18 16:13:10,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:10,419 INFO L471 AbstractCegarLoop]: Abstraction has 50124 states and 72040 transitions. [2024-11-18 16:13:10,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 16:13:10,419 INFO L276 IsEmpty]: Start isEmpty. Operand 50124 states and 72040 transitions. [2024-11-18 16:13:10,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 16:13:10,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:10,425 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:10,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 16:13:10,425 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:10,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:10,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1374632942, now seen corresponding path program 1 times [2024-11-18 16:13:10,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:10,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321605009] [2024-11-18 16:13:10,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:10,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:10,579 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 16:13:10,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:10,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321605009] [2024-11-18 16:13:10,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321605009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:10,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:10,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 16:13:10,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066432905] [2024-11-18 16:13:10,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:10,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 16:13:10,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:10,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 16:13:10,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:13:10,582 INFO L87 Difference]: Start difference. First operand 50124 states and 72040 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states 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 16:13:13,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:13,406 INFO L93 Difference]: Finished difference Result 150108 states and 216304 transitions. [2024-11-18 16:13:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:13:13,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 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 104 [2024-11-18 16:13:13,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:13,652 INFO L225 Difference]: With dead ends: 150108 [2024-11-18 16:13:13,653 INFO L226 Difference]: Without dead ends: 135194 [2024-11-18 16:13:13,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 16:13:13,692 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 9892 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9892 SdHoareTripleChecker+Valid, 4545 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:13,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9892 Valid, 4545 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:13:13,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135194 states. [2024-11-18 16:13:16,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135194 to 65036. [2024-11-18 16:13:16,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65036 states, 65034 states have (on average 1.4354337731032998) internal successors, (93352), 65035 states have internal predecessors, (93352), 0 states have call successors, (0), 0 states 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 16:13:16,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65036 states to 65036 states and 93352 transitions. [2024-11-18 16:13:16,233 INFO L78 Accepts]: Start accepts. Automaton has 65036 states and 93352 transitions. Word has length 104 [2024-11-18 16:13:16,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:16,233 INFO L471 AbstractCegarLoop]: Abstraction has 65036 states and 93352 transitions. [2024-11-18 16:13:16,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states 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 16:13:16,233 INFO L276 IsEmpty]: Start isEmpty. Operand 65036 states and 93352 transitions. [2024-11-18 16:13:16,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 16:13:16,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:16,242 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:16,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 16:13:16,242 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:16,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:16,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1638489326, now seen corresponding path program 1 times [2024-11-18 16:13:16,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:16,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174851] [2024-11-18 16:13:16,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:16,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 16:13:16,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:16,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174851] [2024-11-18 16:13:16,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:16,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:16,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 16:13:16,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123970008] [2024-11-18 16:13:16,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:16,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 16:13:16,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:16,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 16:13:16,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:13:16,400 INFO L87 Difference]: Start difference. First operand 65036 states and 93352 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:19,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:19,783 INFO L93 Difference]: Finished difference Result 165020 states and 237616 transitions. [2024-11-18 16:13:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:13:19,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-18 16:13:19,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:19,954 INFO L225 Difference]: With dead ends: 165020 [2024-11-18 16:13:19,954 INFO L226 Difference]: Without dead ends: 150106 [2024-11-18 16:13:19,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 16:13:19,988 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 9982 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9982 SdHoareTripleChecker+Valid, 4486 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:19,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9982 Valid, 4486 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:13:20,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150106 states. [2024-11-18 16:13:22,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150106 to 79948. [2024-11-18 16:13:22,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79948 states, 79946 states have (on average 1.434268130988417) internal successors, (114664), 79947 states have internal predecessors, (114664), 0 states have call successors, (0), 0 states 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 16:13:22,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79948 states to 79948 states and 114664 transitions. [2024-11-18 16:13:22,708 INFO L78 Accepts]: Start accepts. Automaton has 79948 states and 114664 transitions. Word has length 104 [2024-11-18 16:13:22,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:22,708 INFO L471 AbstractCegarLoop]: Abstraction has 79948 states and 114664 transitions. [2024-11-18 16:13:22,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:22,709 INFO L276 IsEmpty]: Start isEmpty. Operand 79948 states and 114664 transitions. [2024-11-18 16:13:22,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 16:13:22,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:22,717 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:22,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 16:13:22,717 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:22,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:22,718 INFO L85 PathProgramCache]: Analyzing trace with hash 661282542, now seen corresponding path program 1 times [2024-11-18 16:13:22,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:22,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382807532] [2024-11-18 16:13:22,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:22,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:22,916 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 16:13:22,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:22,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382807532] [2024-11-18 16:13:22,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382807532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:22,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:22,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 16:13:22,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416996078] [2024-11-18 16:13:22,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:22,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 16:13:22,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:22,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 16:13:22,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:13:22,920 INFO L87 Difference]: Start difference. First operand 79948 states and 114664 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 16:13:26,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:26,720 INFO L93 Difference]: Finished difference Result 179932 states and 258928 transitions. [2024-11-18 16:13:26,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:13:26,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 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 104 [2024-11-18 16:13:26,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:26,904 INFO L225 Difference]: With dead ends: 179932 [2024-11-18 16:13:26,904 INFO L226 Difference]: Without dead ends: 165018 [2024-11-18 16:13:26,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 16:13:26,935 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 10067 mSDsluCounter, 2865 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10067 SdHoareTripleChecker+Valid, 4526 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:26,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10067 Valid, 4526 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:13:27,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165018 states. [2024-11-18 16:13:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165018 to 94860. [2024-11-18 16:13:29,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94860 states, 94858 states have (on average 1.4334689746779397) internal successors, (135976), 94859 states have internal predecessors, (135976), 0 states have call successors, (0), 0 states 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 16:13:29,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94860 states to 94860 states and 135976 transitions. [2024-11-18 16:13:29,903 INFO L78 Accepts]: Start accepts. Automaton has 94860 states and 135976 transitions. Word has length 104 [2024-11-18 16:13:29,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:29,903 INFO L471 AbstractCegarLoop]: Abstraction has 94860 states and 135976 transitions. [2024-11-18 16:13:29,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 16:13:29,904 INFO L276 IsEmpty]: Start isEmpty. Operand 94860 states and 135976 transitions. [2024-11-18 16:13:29,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 16:13:29,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:29,910 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:29,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 16:13:29,910 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:29,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:29,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1852751890, now seen corresponding path program 1 times [2024-11-18 16:13:29,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:29,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728340705] [2024-11-18 16:13:29,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:29,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-18 16:13:30,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:30,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728340705] [2024-11-18 16:13:30,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728340705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:30,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:30,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 16:13:30,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476876935] [2024-11-18 16:13:30,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:30,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 16:13:30,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:30,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 16:13:30,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:13:30,050 INFO L87 Difference]: Start difference. First operand 94860 states and 135976 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 16:13:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:34,251 INFO L93 Difference]: Finished difference Result 194844 states and 280240 transitions. [2024-11-18 16:13:34,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:13:34,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 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 104 [2024-11-18 16:13:34,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:34,481 INFO L225 Difference]: With dead ends: 194844 [2024-11-18 16:13:34,481 INFO L226 Difference]: Without dead ends: 179930 [2024-11-18 16:13:34,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 16:13:34,522 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 9932 mSDsluCounter, 2917 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9932 SdHoareTripleChecker+Valid, 4578 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:34,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9932 Valid, 4578 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:13:34,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179930 states. [2024-11-18 16:13:38,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179930 to 109772. [2024-11-18 16:13:38,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109772 states, 109770 states have (on average 1.4328869454313564) internal successors, (157288), 109771 states have internal predecessors, (157288), 0 states have call successors, (0), 0 states 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 16:13:38,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109772 states to 109772 states and 157288 transitions. [2024-11-18 16:13:38,608 INFO L78 Accepts]: Start accepts. Automaton has 109772 states and 157288 transitions. Word has length 104 [2024-11-18 16:13:38,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:38,608 INFO L471 AbstractCegarLoop]: Abstraction has 109772 states and 157288 transitions. [2024-11-18 16:13:38,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 16:13:38,609 INFO L276 IsEmpty]: Start isEmpty. Operand 109772 states and 157288 transitions. [2024-11-18 16:13:38,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 16:13:38,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:38,619 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:38,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 16:13:38,619 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:38,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:38,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1418215954, now seen corresponding path program 1 times [2024-11-18 16:13:38,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:38,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474626662] [2024-11-18 16:13:38,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:38,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-18 16:13:38,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:38,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474626662] [2024-11-18 16:13:38,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474626662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:38,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:38,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 16:13:38,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251980423] [2024-11-18 16:13:38,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:38,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 16:13:38,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:38,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 16:13:38,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:13:38,788 INFO L87 Difference]: Start difference. First operand 109772 states and 157288 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)